iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MMC core:

Browse Source 
- Add TRACE support to be able to debug request flow
  - Extend/improve reset support for (e)MMC
  - Convert MMC pwrseq to platform device drivers
  - Use IDA for indexes
  - Some additional minor improvements
 
 MMC host:
  - sdhci: Re-factoring, clean-ups and improvements
  - sdhci-acpi|pci: Use MMC_CAP_AGGRESSIVE_PM for Broxton
  - omap/omap_hsmmc: Convert to use dma_request_chan()
  - usdhi6rol0: Add support for UHS modes
  - sh_mmcif: Update runtime PM support
  - tmio: Wolfram Sang steps in as maintainer
  - tmio: Add UHS-I mode support
  - sh_mobile_sdhi: Add UHS-I mode support
  - tmio/sdhi: Re-factoring, clean-ups and improvements
  - dw_mmc: Re-factoring and clean-ups
  - davinci: Convert to use dma_request_chan()
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJXObOWAAoJEP4mhCVzWIwp3P4QANEb2z7NgUOw3DTti87r05gj
 N3PNafNIn7EjrtuBenaVNZUkGnjnzVanNYEMArGFIdeVhJ/ZCCJY1fUOK161NUmO
 1zRCOSufD9mRmhNtKb7jKu1YboXPRyKDaPVBTSSVrQPBw699tALGHCyAFvgFFKPD
 RvTPHSvH1vTy0VF50/ao/vl1ci89nxp6PBG/5xe1rorBHH1CYaiPgWtniMqc09Ix
 LiAO8Ox7fNd4WgK1tO56xJgEN2WA+Pbqy/7UabO+OjXoAMbPmO/l8vP0/9MqlBaX
 WZyDVwusQ9VhyDMsQ6tpZa6k8G3u3LOeolZWHKQqHpJYbNuwP+szh4gdJRb838CC
 AIz9UWC35ERn7yYD0aL5ok0TQhf4NJhJZibbGT2zNtnUVaSJnrJsqNtQOtEVLI9v
 KxzSiKsAAC0fGpyvze3/yU4JXc1yJd8EXm1iakF5KYBimC+wzVRqQmuDUPrLjTG5
 iypctu+yqb2OXmKbedsCruJ7nnLYAcGFKAaUSvCxn7AO4e44YEU7VIeWdC+NO6+s
 vf9HNfKwiorw2mkYNcfnJgTjzqXhimOp+94WAOUBMhi1w+OZ1TUlSriTyBbK3s1G
 rb4I37T7oLZIpDitfvmra9ORqNyUr0AlG3728BScN/Rc3731uEIBRd11h32hUoXk
 b8a9ORVfHZHMrv5+5T0N
 =89kT
 -----END PGP SIGNATURE-----

Merge tag 'mmc-v4.7' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Add TRACE support to be able to debug request flow
   - Extend/improve reset support for (e)MMC
   - Convert MMC pwrseq to platform device drivers
   - Use IDA for indexes
   - Some additional minor improvements

  MMC host:
   - sdhci: Re-factoring, clean-ups and improvements
   - sdhci-acpi|pci: Use MMC_CAP_AGGRESSIVE_PM for Broxton
   - omap/omap_hsmmc: Convert to use dma_request_chan()
   - usdhi6rol0: Add support for UHS modes
   - sh_mmcif: Update runtime PM support
   - tmio: Wolfram Sang steps in as maintainer
   - tmio: Add UHS-I mode support
   - sh_mobile_sdhi: Add UHS-I mode support
   - tmio/sdhi: Re-factoring, clean-ups and improvements
   - dw_mmc: Re-factoring and clean-ups
   - davinci: Convert to use dma_request_chan()"

* tag 'mmc-v4.7' of git://git.linaro.org/people/ulf.hansson/mmc: (99 commits)
  mmc: mmc: Fix partition switch timeout for some eMMCs
  mmc: sh_mobile_sdhi: enable SDIO IRQs for RCar Gen3
  mmc: sdio: fall back to SDIO 1.0 for broken 1.1 cards
  mmc: sdhci-st: correct name of sd-uhs-sdr50 property
  MAINTAINERS: update entry for TMIO MMC driver
  mmc: block: improve logging of handling emmc timeouts
  mmc: sdhci: removed unneeded function wrappers
  mmc: core: remove the invalid message in mmc_select_timing
  mmc: core: fix using wrong io voltage if mmc_select_hs200 fails
  mmc: sdhci-of-arasan: fix set_clock when a phy is supported
  mmc: omap: Use dma_request_chan() for requesting DMA channel
  mmc: mmc: Attempt to flush cache before reset
  mmc: sh_mobile_sdhi: check return value when changing clk
  mmc: sh_mobile_sdhi: only change the clock on RCar Gen2+
  mmc: tmio/sdhi: introduce flag for RCar 2+ specific features
  mmc: sh_mobile_sdhi: make clk_update function more compact
  mmc: omap_hsmmc: Use dma_request_chan() for requesting DMA channel
  mmc: sdhci-of-at91: add presets setup
  mmc: usdhi6rol0: add pinctrl to set pin drive strength
  mmc: usdhi6rol0: add support for UHS modes
  ...
This commit is contained in:
Linus Torvalds 2016-05-16 19:10:40 -07:00
commit 3e21e5dda4
54 changed files with 1262 additions and 1097 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/devicetree/bindings/mmc/sdhci-st.txt
View File

@ -38,7 +38,7 @@ Optional properties:
- bus-width: Number of data lines.
See: Documentation/devicetree/bindings/mmc/mmc.txt.
- max-frequency: Can be 200MHz, 100Mz or 50MHz (default) and used for
- max-frequency: Can be 200MHz, 100Mz or 50MHz (default) and used for
configuring the CCONFIG3 in the mmcss.
See: Documentation/devicetree/bindings/mmc/mmc.txt.
@ -48,7 +48,7 @@ Optional properties:
- vqmmc-supply: Phandle to the regulator dt node, mentioned as the vcc/vdd
supply in eMMC/SD specs.
- sd-uhs--sdr50: To enable the SDR50 in the mmcss.
- sd-uhs-sdr50: To enable the SDR50 in the mmcss.
See: Documentation/devicetree/bindings/mmc/mmc.txt.
- sd-uhs-sdr104: To enable the SDR104 in the mmcss.

3
Documentation/devicetree/bindings/mmc/tmio_mmc.txt
View File

@ -26,3 +26,6 @@ Required properties:
Optional properties:
- toshiba,mmc-wrprotect-disable: write-protect detection is unavailable
- pinctrl-names: should be "default", "state_uhs"
- pinctrl-0: should contain default/high speed pin ctrl
- pinctrl-1: should contain uhs mode pin ctrl

6
Documentation/devicetree/bindings/mmc/usdhi6rol0.txt
View File

@ -12,6 +12,12 @@ Optional properties:
- vmmc-supply: a phandle of a regulator, supplying Vcc to the card
- vqmmc-supply: a phandle of a regulator, supplying VccQ to the card
- pinctrl-names: Can contain a "default" entry and a "state_uhs"
entry. The state_uhs entry is used together with the default
entry when the board requires distinct settings for UHS speeds.
- pinctrl-N: One property for each name listed in pinctrl-names, see
../pinctrl/pinctrl-bindings.txt.
Additionally any standard mmc bindings from mmc.txt can be used.

9
MAINTAINERS
View File

@ -11246,14 +11246,13 @@ S: Maintained
F: drivers/media/i2c/tc358743*
F: include/media/i2c/tc358743.h
TMIO MMC DRIVER
M: Ian Molton <ian@mnementh.co.uk>
TMIO/SDHI MMC DRIVER
M: Wolfram Sang <wsa+renesas@sang-engineering.com>
L: linux-mmc@vger.kernel.org
S: Maintained
S: Supported
F: drivers/mmc/host/tmio_mmc*
F: drivers/mmc/host/sh_mobile_sdhi.c
F: include/linux/mmc/tmio.h
F: include/linux/mmc/sh_mobile_sdhi.h
F: include/linux/mfd/tmio.h
TMP401 HARDWARE MONITOR DRIVER
M: Guenter Roeck <linux@roeck-us.net>

20
arch/arm/mach-davinci/devices-da8xx.c
View File

@ -751,16 +751,6 @@ static struct resource da8xx_mmcsd0_resources[] = {
.end = IRQ_DA8XX_MMCSDINT0,
.flags = IORESOURCE_IRQ,
},
{ /* DMA RX */
.start = DA8XX_DMA_MMCSD0_RX,
.end = DA8XX_DMA_MMCSD0_RX,
.flags = IORESOURCE_DMA,
},
{ /* DMA TX */
.start = DA8XX_DMA_MMCSD0_TX,
.end = DA8XX_DMA_MMCSD0_TX,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device da8xx_mmcsd0_device = {
@ -788,16 +778,6 @@ static struct resource da850_mmcsd1_resources[] = {
.end = IRQ_DA850_MMCSDINT0_1,
.flags = IORESOURCE_IRQ,
},
{ /* DMA RX */
.start = DA850_DMA_MMCSD1_RX,
.end = DA850_DMA_MMCSD1_RX,
.flags = IORESOURCE_DMA,
},
{ /* DMA TX */
.start = DA850_DMA_MMCSD1_TX,
.end = DA850_DMA_MMCSD1_TX,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device da850_mmcsd1_device = {

16
arch/arm/mach-davinci/devices.c
View File

@ -144,14 +144,6 @@ static struct resource mmcsd0_resources[] = {
.start = IRQ_SDIOINT,
.flags = IORESOURCE_IRQ,
},
/* DMA channels: RX, then TX */
{
.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
.flags = IORESOURCE_DMA,
}, {
.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT),
.flags = IORESOURCE_DMA,
},
};
static struct platform_device davinci_mmcsd0_device = {
@ -181,14 +173,6 @@ static struct resource mmcsd1_resources[] = {
.start = IRQ_DM355_SDIOINT1,
.flags = IORESOURCE_IRQ,
},
/* DMA channels: RX, then TX */
{
.start = EDMA_CTLR_CHAN(0, 30), /* rx */
.flags = IORESOURCE_DMA,
}, {
.start = EDMA_CTLR_CHAN(0, 31), /* tx */
.flags = IORESOURCE_DMA,
},
};
static struct platform_device davinci_mmcsd1_device = {

1
arch/sh/boards/board-sh7757lcr.c
View File

@ -20,7 +20,6 @@
#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mmcif.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/sh_eth.h>
#include <linux/sh_intc.h>
#include <linux/usb/renesas_usbhs.h>

1
arch/sh/boards/mach-ap325rxa/setup.c
View File

@ -15,7 +15,6 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/sh_flctl.h>
#include <linux/mfd/tmio.h>

1
arch/sh/boards/mach-ecovec24/setup.c
View File

@ -13,7 +13,6 @@
#include <linux/platform_device.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mmcif.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mtd/physmap.h>
#include <linux/mfd/tmio.h>
#include <linux/gpio.h>

1
arch/sh/boards/mach-kfr2r09/setup.c
View File

@ -11,7 +11,6 @@
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/onenand.h>

1
arch/sh/boards/mach-migor/setup.c
View File

@ -13,7 +13,6 @@
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mtd/physmap.h>
#include <linux/mfd/tmio.h>
#include <linux/mtd/nand.h>

1
arch/sh/boards/mach-se/7724/setup.c
View File

@ -15,7 +15,6 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/mtd/physmap.h>
#include <linux/delay.h>

45
drivers/mmc/card/block.c
View File

@ -35,6 +35,7 @@
#include <linux/capability.h>
#include <linux/compat.h>
#include <linux/pm_runtime.h>
#include <linux/idr.h>
#include <linux/mmc/ioctl.h>
#include <linux/mmc/card.h>
@ -78,14 +79,14 @@ static int perdev_minors = CONFIG_MMC_BLOCK_MINORS;
/*
* We've only got one major, so number of mmcblk devices is
* limited to (1 << 20) / number of minors per device. It is also
* currently limited by the size of the static bitmaps below.
* limited by the MAX_DEVICES below.
*/
static int max_devices;
#define MAX_DEVICES 256
/* TODO: Replace these with struct ida */
static DECLARE_BITMAP(dev_use, MAX_DEVICES);
static DEFINE_IDA(mmc_blk_ida);
static DEFINE_SPINLOCK(mmc_blk_lock);
/*
* There is one mmc_blk_data per slot.
@ -178,7 +179,9 @@ static void mmc_blk_put(struct mmc_blk_data *md)
int devidx = mmc_get_devidx(md->disk);
blk_cleanup_queue(md->queue.queue);
__clear_bit(devidx, dev_use);
spin_lock(&mmc_blk_lock);
ida_remove(&mmc_blk_ida, devidx);
spin_unlock(&mmc_blk_lock);
put_disk(md->disk);
kfree(md);
@ -945,16 +948,22 @@ static int mmc_blk_cmd_error(struct request *req, const char *name, int error,
req->rq_disk->disk_name, "timed out", name, status);
/* If the status cmd initially failed, retry the r/w cmd */
if (!status_valid)
if (!status_valid) {
pr_err("%s: status not valid, retrying timeout\n",
req->rq_disk->disk_name);
return ERR_RETRY;
}
/*
* If it was a r/w cmd crc error, or illegal command
* (eg, issued in wrong state) then retry - we should
* have corrected the state problem above.
*/
if (status & (R1_COM_CRC_ERROR | R1_ILLEGAL_COMMAND))
if (status & (R1_COM_CRC_ERROR | R1_ILLEGAL_COMMAND)) {
pr_err("%s: command error, retrying timeout\n",
req->rq_disk->disk_name);
return ERR_RETRY;
}
/* Otherwise abort the command */
return ERR_ABORT;
@ -2189,10 +2198,23 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
struct mmc_blk_data *md;
int devidx, ret;
devidx = find_first_zero_bit(dev_use, max_devices);
if (devidx >= max_devices)
return ERR_PTR(-ENOSPC);
__set_bit(devidx, dev_use);
again:
if (!ida_pre_get(&mmc_blk_ida, GFP_KERNEL))
return ERR_PTR(-ENOMEM);
spin_lock(&mmc_blk_lock);
ret = ida_get_new(&mmc_blk_ida, &devidx);
spin_unlock(&mmc_blk_lock);
if (ret == -EAGAIN)
goto again;
else if (ret)
return ERR_PTR(ret);
if (devidx >= max_devices) {
ret = -ENOSPC;
goto out;
}
md = kzalloc(sizeof(struct mmc_blk_data), GFP_KERNEL);
if (!md) {
@ -2289,6 +2311,9 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
err_kfree:
kfree(md);
out:
spin_lock(&mmc_blk_lock);
ida_remove(&mmc_blk_ida, devidx);
spin_unlock(&mmc_blk_lock);
return ERR_PTR(ret);
}

21
drivers/mmc/core/Kconfig
View File

@ -1,3 +1,24 @@
#
# MMC core configuration
#
config PWRSEQ_EMMC
tristate "HW reset support for eMMC"
default y
depends on OF
help
This selects Hardware reset support aka pwrseq-emmc for eMMC
devices. By default this option is set to y.
This driver can also be built as a module. If so, the module
will be called pwrseq_emmc.
config PWRSEQ_SIMPLE
tristate "Simple HW reset support for MMC"
default y
depends on OF
help
This selects simple hardware reset support aka pwrseq-simple for MMC
devices. By default this option is set to y.
This driver can also be built as a module. If so, the module
will be called pwrseq_simple.

4
drivers/mmc/core/Makefile
View File

@ -8,5 +8,7 @@ mmc_core-y := core.o bus.o host.o \
sdio.o sdio_ops.o sdio_bus.o \
sdio_cis.o sdio_io.o sdio_irq.o \
quirks.o slot-gpio.o
mmc_core-$(CONFIG_OF) += pwrseq.o pwrseq_simple.o pwrseq_emmc.o
mmc_core-$(CONFIG_OF) += pwrseq.o
obj-$(CONFIG_PWRSEQ_SIMPLE) += pwrseq_simple.o
obj-$(CONFIG_PWRSEQ_EMMC) += pwrseq_emmc.o
mmc_core-$(CONFIG_DEBUG_FS) += debugfs.o

12
drivers/mmc/core/core.c
View File

@ -36,6 +36,9 @@
#include <linux/mmc/sd.h>
#include <linux/mmc/slot-gpio.h>
#define CREATE_TRACE_POINTS
#include <trace/events/mmc.h>
#include "core.h"
#include "bus.h"
#include "host.h"
@ -140,6 +143,8 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
cmd->retries = 0;
}
trace_mmc_request_done(host, mrq);
if (err && cmd->retries && !mmc_card_removed(host->card)) {
/*
* Request starter must handle retries - see
@ -215,6 +220,8 @@ static void __mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
}
}
trace_mmc_request_start(host, mrq);
host->ops->request(host, mrq);
}
@ -2449,8 +2456,9 @@ int mmc_hw_reset(struct mmc_host *host)
ret = host->bus_ops->reset(host);
mmc_bus_put(host);
if (ret != -EOPNOTSUPP)
pr_warn("%s: tried to reset card\n", mmc_hostname(host));
if (ret)
pr_warn("%s: tried to reset card, got error %d\n",
mmc_hostname(host), ret);
return ret;
}

22
drivers/mmc/core/host.c
View File

@ -33,14 +33,14 @@
#define cls_dev_to_mmc_host(d) container_of(d, struct mmc_host, class_dev)
static DEFINE_IDR(mmc_host_idr);
static DEFINE_IDA(mmc_host_ida);
static DEFINE_SPINLOCK(mmc_host_lock);
static void mmc_host_classdev_release(struct device *dev)
{
struct mmc_host *host = cls_dev_to_mmc_host(dev);
spin_lock(&mmc_host_lock);
idr_remove(&mmc_host_idr, host->index);
ida_remove(&mmc_host_ida, host->index);
spin_unlock(&mmc_host_lock);
kfree(host);
}
@ -321,14 +321,20 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
/* scanning will be enabled when we're ready */
host->rescan_disable = 1;
idr_preload(GFP_KERNEL);
again:
if (!ida_pre_get(&mmc_host_ida, GFP_KERNEL)) {
kfree(host);
return NULL;
}
spin_lock(&mmc_host_lock);
err = idr_alloc(&mmc_host_idr, host, 0, 0, GFP_NOWAIT);
if (err >= 0)
host->index = err;
err = ida_get_new(&mmc_host_ida, &host->index);
spin_unlock(&mmc_host_lock);
idr_preload_end();
if (err < 0) {
if (err == -EAGAIN) {
goto again;
} else if (err) {
kfree(host);
return NULL;
}

62
drivers/mmc/core/mmc.c
View File

@ -333,6 +333,9 @@ static void mmc_manage_gp_partitions(struct mmc_card *card, u8 *ext_csd)
}
}
/* Minimum partition switch timeout in milliseconds */
#define MMC_MIN_PART_SWITCH_TIME 300
/*
* Decode extended CSD.
*/
@ -397,6 +400,10 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
/* EXT_CSD value is in units of 10ms, but we store in ms */
card->ext_csd.part_time = 10 * ext_csd[EXT_CSD_PART_SWITCH_TIME];
/* Some eMMC set the value too low so set a minimum */
if (card->ext_csd.part_time &&
card->ext_csd.part_time < MMC_MIN_PART_SWITCH_TIME)
card->ext_csd.part_time = MMC_MIN_PART_SWITCH_TIME;
/* Sleep / awake timeout in 100ns units */
if (sa_shift > 0 && sa_shift <= 0x17)
@ -1244,10 +1251,11 @@ static int mmc_select_hs200(struct mmc_card *card)
{
struct mmc_host *host = card->host;
bool send_status = true;
unsigned int old_timing;
unsigned int old_timing, old_signal_voltage;
int err = -EINVAL;
u8 val;
old_signal_voltage = host->ios.signal_voltage;
if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200_1_2V)
err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120);
@ -1256,7 +1264,7 @@ static int mmc_select_hs200(struct mmc_card *card)
/* If fails try again during next card power cycle */
if (err)
goto err;
return err;
mmc_select_driver_type(card);
@ -1290,9 +1298,14 @@ static int mmc_select_hs200(struct mmc_card *card)
}
}
err:
if (err)
if (err) {
/* fall back to the old signal voltage, if fails report error */
if (__mmc_set_signal_voltage(host, old_signal_voltage))
err = -EIO;
pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host),
__func__, err);
}
return err;
}
@ -1314,21 +1327,13 @@ static int mmc_select_timing(struct mmc_card *card)
if (err && err != -EBADMSG)
return err;
if (err) {
pr_warn("%s: switch to %s failed\n",
mmc_card_hs(card) ? "high-speed" :
(mmc_card_hs200(card) ? "hs200" : ""),
mmc_hostname(card->host));
err = 0;
}
bus_speed:
/*
* Set the bus speed to the selected bus timing.
* If timing is not selected, backward compatible is the default.
*/
mmc_set_bus_speed(card);
return err;
return 0;
}
/*
@ -1483,12 +1488,13 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
if (err)
goto free_card;
/* If doing byte addressing, check if required to do sector
/*
* If doing byte addressing, check if required to do sector
* addressing. Handle the case of <2GB cards needing sector
* addressing. See section 8.1 JEDEC Standard JED84-A441;
* ocr register has bit 30 set for sector addressing.
*/
if (!(mmc_card_blockaddr(card)) && (rocr & (1<<30)))
if (rocr & BIT(30))
mmc_card_set_blockaddr(card);
/* Erase size depends on CSD and Extended CSD */
@ -1957,19 +1963,23 @@ static int mmc_reset(struct mmc_host *host)
{
struct mmc_card *card = host->card;
if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
return -EOPNOTSUPP;
if (!mmc_can_reset(card))
return -EOPNOTSUPP;
mmc_set_clock(host, host->f_init);
host->ops->hw_reset(host);
/* Set initial state and call mmc_set_ios */
mmc_set_initial_state(host);
/*
* In the case of recovery, we can't expect flushing the cache to work
* always, but we have a go and ignore errors.
*/
mmc_flush_cache(host->card);
if ((host->caps & MMC_CAP_HW_RESET) && host->ops->hw_reset &&
mmc_can_reset(card)) {
/* If the card accept RST_n signal, send it. */
mmc_set_clock(host, host->f_init);
host->ops->hw_reset(host);
/* Set initial state and call mmc_set_ios */
mmc_set_initial_state(host);
} else {
/* Do a brute force power cycle */
mmc_power_cycle(host, card->ocr);
}
return mmc_init_card(host, card->ocr, card);
}

110
drivers/mmc/core/pwrseq.c
View File

@ -8,88 +8,55 @@
* MMC power sequence management
*/
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/mmc/host.h>
#include "pwrseq.h"
struct mmc_pwrseq_match {
const char *compatible;
struct mmc_pwrseq *(*alloc)(struct mmc_host *host, struct device *dev);
};
static struct mmc_pwrseq_match pwrseq_match[] = {
{
.compatible = "mmc-pwrseq-simple",
.alloc = mmc_pwrseq_simple_alloc,
}, {
.compatible = "mmc-pwrseq-emmc",
.alloc = mmc_pwrseq_emmc_alloc,
},
};
static struct mmc_pwrseq_match *mmc_pwrseq_find(struct device_node *np)
{
struct mmc_pwrseq_match *match = ERR_PTR(-ENODEV);
int i;
for (i = 0; i < ARRAY_SIZE(pwrseq_match); i++) {
if (of_device_is_compatible(np, pwrseq_match[i].compatible)) {
match = &pwrseq_match[i];
break;
}
}
return match;
}
static DEFINE_MUTEX(pwrseq_list_mutex);
static LIST_HEAD(pwrseq_list);
int mmc_pwrseq_alloc(struct mmc_host *host)
{
struct platform_device *pdev;
struct device_node *np;
struct mmc_pwrseq_match *match;
struct mmc_pwrseq *pwrseq;
int ret = 0;
struct mmc_pwrseq *p;
np = of_parse_phandle(host->parent->of_node, "mmc-pwrseq", 0);
if (!np)
return 0;
pdev = of_find_device_by_node(np);
if (!pdev) {
ret = -ENODEV;
goto err;
mutex_lock(&pwrseq_list_mutex);
list_for_each_entry(p, &pwrseq_list, pwrseq_node) {
if (p->dev->of_node == np) {
if (!try_module_get(p->owner))
dev_err(host->parent,
"increasing module refcount failed\n");
else
host->pwrseq = p;
break;
}
}
match = mmc_pwrseq_find(np);
if (IS_ERR(match)) {
ret = PTR_ERR(match);
goto err;
}
of_node_put(np);
mutex_unlock(&pwrseq_list_mutex);
pwrseq = match->alloc(host, &pdev->dev);
if (IS_ERR(pwrseq)) {
ret = PTR_ERR(pwrseq);
goto err;
}
if (!host->pwrseq)
return -EPROBE_DEFER;
host->pwrseq = pwrseq;
dev_info(host->parent, "allocated mmc-pwrseq\n");
err:
of_node_put(np);
return ret;
return 0;
}
void mmc_pwrseq_pre_power_on(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops && pwrseq->ops->pre_power_on)
if (pwrseq && pwrseq->ops->pre_power_on)
pwrseq->ops->pre_power_on(host);
}
@ -97,7 +64,7 @@ void mmc_pwrseq_post_power_on(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops && pwrseq->ops->post_power_on)
if (pwrseq && pwrseq->ops->post_power_on)
pwrseq->ops->post_power_on(host);
}
@ -105,7 +72,7 @@ void mmc_pwrseq_power_off(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops && pwrseq->ops->power_off)
if (pwrseq && pwrseq->ops->power_off)
pwrseq->ops->power_off(host);
}
@ -113,8 +80,31 @@ void mmc_pwrseq_free(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops && pwrseq->ops->free)
pwrseq->ops->free(host);
host->pwrseq = NULL;
if (pwrseq) {
module_put(pwrseq->owner);
host->pwrseq = NULL;
}
}
int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq)
{
if (!pwrseq || !pwrseq->ops || !pwrseq->dev)
return -EINVAL;
mutex_lock(&pwrseq_list_mutex);
list_add(&pwrseq->pwrseq_node, &pwrseq_list);
mutex_unlock(&pwrseq_list_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(mmc_pwrseq_register);
void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq)
{
if (pwrseq) {
mutex_lock(&pwrseq_list_mutex);
list_del(&pwrseq->pwrseq_node);
mutex_unlock(&pwrseq_list_mutex);
}
}
EXPORT_SYMBOL_GPL(mmc_pwrseq_unregister);

19
drivers/mmc/core/pwrseq.h
View File

@ -8,32 +8,39 @@
#ifndef _MMC_CORE_PWRSEQ_H
#define _MMC_CORE_PWRSEQ_H
#include <linux/mmc/host.h>
struct mmc_pwrseq_ops {
void (*pre_power_on)(struct mmc_host *host);
void (*post_power_on)(struct mmc_host *host);
void (*power_off)(struct mmc_host *host);
void (*free)(struct mmc_host *host);
};
struct mmc_pwrseq {
const struct mmc_pwrseq_ops *ops;
struct device *dev;
struct list_head pwrseq_node;
struct module *owner;
};
#ifdef CONFIG_OF
int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq);
void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq);
int mmc_pwrseq_alloc(struct mmc_host *host);
void mmc_pwrseq_pre_power_on(struct mmc_host *host);
void mmc_pwrseq_post_power_on(struct mmc_host *host);
void mmc_pwrseq_power_off(struct mmc_host *host);
void mmc_pwrseq_free(struct mmc_host *host);
struct mmc_pwrseq *mmc_pwrseq_simple_alloc(struct mmc_host *host,
struct device *dev);
struct mmc_pwrseq *mmc_pwrseq_emmc_alloc(struct mmc_host *host,
struct device *dev);
#else
static inline int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq)
{
return -ENOSYS;
}
static inline void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq) {}
static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; }
static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {}
static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {}

81
drivers/mmc/core/pwrseq_emmc.c
View File

@ -9,6 +9,9 @@
*/
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/err.h>
@ -25,6 +28,8 @@ struct mmc_pwrseq_emmc {
struct gpio_desc *reset_gpio;
};
#define to_pwrseq_emmc(p) container_of(p, struct mmc_pwrseq_emmc, pwrseq)
static void __mmc_pwrseq_emmc_reset(struct mmc_pwrseq_emmc *pwrseq)
{
gpiod_set_value(pwrseq->reset_gpio, 1);
@ -35,27 +40,11 @@ static void __mmc_pwrseq_emmc_reset(struct mmc_pwrseq_emmc *pwrseq)
static void mmc_pwrseq_emmc_reset(struct mmc_host *host)
{
struct mmc_pwrseq_emmc *pwrseq = container_of(host->pwrseq,
struct mmc_pwrseq_emmc, pwrseq);
struct mmc_pwrseq_emmc *pwrseq = to_pwrseq_emmc(host->pwrseq);
__mmc_pwrseq_emmc_reset(pwrseq);
}
static void mmc_pwrseq_emmc_free(struct mmc_host *host)
{
struct mmc_pwrseq_emmc *pwrseq = container_of(host->pwrseq,
struct mmc_pwrseq_emmc, pwrseq);
unregister_restart_handler(&pwrseq->reset_nb);
gpiod_put(pwrseq->reset_gpio);
kfree(pwrseq);
}
static const struct mmc_pwrseq_ops mmc_pwrseq_emmc_ops = {
.post_power_on = mmc_pwrseq_emmc_reset,
.free = mmc_pwrseq_emmc_free,
};
static int mmc_pwrseq_emmc_reset_nb(struct notifier_block *this,
unsigned long mode, void *cmd)
{
@ -66,21 +55,22 @@ static int mmc_pwrseq_emmc_reset_nb(struct notifier_block *this,
return NOTIFY_DONE;
}
struct mmc_pwrseq *mmc_pwrseq_emmc_alloc(struct mmc_host *host,
struct device *dev)
static const struct mmc_pwrseq_ops mmc_pwrseq_emmc_ops = {
.post_power_on = mmc_pwrseq_emmc_reset,
};
static int mmc_pwrseq_emmc_probe(struct platform_device *pdev)
{
struct mmc_pwrseq_emmc *pwrseq;
int ret = 0;
struct device *dev = &pdev->dev;
pwrseq = kzalloc(sizeof(struct mmc_pwrseq_emmc), GFP_KERNEL);
pwrseq = devm_kzalloc(dev, sizeof(*pwrseq), GFP_KERNEL);
if (!pwrseq)
return ERR_PTR(-ENOMEM);
return -ENOMEM;
pwrseq->reset_gpio = gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(pwrseq->reset_gpio)) {
ret = PTR_ERR(pwrseq->reset_gpio);
goto free;
}
pwrseq->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(pwrseq->reset_gpio))
return PTR_ERR(pwrseq->reset_gpio);
/*
* register reset handler to ensure emmc reset also from
@ -92,9 +82,38 @@ struct mmc_pwrseq *mmc_pwrseq_emmc_alloc(struct mmc_host *host,
register_restart_handler(&pwrseq->reset_nb);
pwrseq->pwrseq.ops = &mmc_pwrseq_emmc_ops;
pwrseq->pwrseq.dev = dev;
pwrseq->pwrseq.owner = THIS_MODULE;
platform_set_drvdata(pdev, pwrseq);
return &pwrseq->pwrseq;
free:
kfree(pwrseq);
return ERR_PTR(ret);
return mmc_pwrseq_register(&pwrseq->pwrseq);
}
static int mmc_pwrseq_emmc_remove(struct platform_device *pdev)
{
struct mmc_pwrseq_emmc *pwrseq = platform_get_drvdata(pdev);
unregister_restart_handler(&pwrseq->reset_nb);
mmc_pwrseq_unregister(&pwrseq->pwrseq);
return 0;
}
static const struct of_device_id mmc_pwrseq_emmc_of_match[] = {
{ .compatible = "mmc-pwrseq-emmc",},
{/* sentinel */},
};
MODULE_DEVICE_TABLE(of, mmc_pwrseq_emmc_of_match);
static struct platform_driver mmc_pwrseq_emmc_driver = {
.probe = mmc_pwrseq_emmc_probe,
.remove = mmc_pwrseq_emmc_remove,
.driver = {
.name = "pwrseq_emmc",
.of_match_table = mmc_pwrseq_emmc_of_match,
},
};
module_platform_driver(mmc_pwrseq_emmc_driver);
MODULE_LICENSE("GPL v2");

91
drivers/mmc/core/pwrseq_simple.c
View File

@ -8,7 +8,10 @@
* Simple MMC power sequence management
*/
#include <linux/clk.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/err.h>
@ -25,6 +28,8 @@ struct mmc_pwrseq_simple {
struct gpio_descs *reset_gpios;
};
#define to_pwrseq_simple(p) container_of(p, struct mmc_pwrseq_simple, pwrseq)
static void mmc_pwrseq_simple_set_gpios_value(struct mmc_pwrseq_simple *pwrseq,
int value)
{
@ -44,8 +49,7 @@ static void mmc_pwrseq_simple_set_gpios_value(struct mmc_pwrseq_simple *pwrseq,
static void mmc_pwrseq_simple_pre_power_on(struct mmc_host *host)
{
struct mmc_pwrseq_simple *pwrseq = container_of(host->pwrseq,
struct mmc_pwrseq_simple, pwrseq);
struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(host->pwrseq);
if (!IS_ERR(pwrseq->ext_clk) && !pwrseq->clk_enabled) {
clk_prepare_enable(pwrseq->ext_clk);
@ -57,16 +61,14 @@ static void mmc_pwrseq_simple_pre_power_on(struct mmc_host *host)
static void mmc_pwrseq_simple_post_power_on(struct mmc_host *host)
{
struct mmc_pwrseq_simple *pwrseq = container_of(host->pwrseq,
struct mmc_pwrseq_simple, pwrseq);
struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(host->pwrseq);
mmc_pwrseq_simple_set_gpios_value(pwrseq, 0);
}
static void mmc_pwrseq_simple_power_off(struct mmc_host *host)
{
struct mmc_pwrseq_simple *pwrseq = container_of(host->pwrseq,
struct mmc_pwrseq_simple, pwrseq);
struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(host->pwrseq);
mmc_pwrseq_simple_set_gpios_value(pwrseq, 1);
@ -76,59 +78,64 @@ static void mmc_pwrseq_simple_power_off(struct mmc_host *host)
}
}
static void mmc_pwrseq_simple_free(struct mmc_host *host)
{
struct mmc_pwrseq_simple *pwrseq = container_of(host->pwrseq,
struct mmc_pwrseq_simple, pwrseq);
if (!IS_ERR(pwrseq->reset_gpios))
gpiod_put_array(pwrseq->reset_gpios);
if (!IS_ERR(pwrseq->ext_clk))
clk_put(pwrseq->ext_clk);
kfree(pwrseq);
}
static const struct mmc_pwrseq_ops mmc_pwrseq_simple_ops = {
.pre_power_on = mmc_pwrseq_simple_pre_power_on,
.post_power_on = mmc_pwrseq_simple_post_power_on,
.power_off = mmc_pwrseq_simple_power_off,
.free = mmc_pwrseq_simple_free,
};
struct mmc_pwrseq *mmc_pwrseq_simple_alloc(struct mmc_host *host,
struct device *dev)
static const struct of_device_id mmc_pwrseq_simple_of_match[] = {
{ .compatible = "mmc-pwrseq-simple",},
{/* sentinel */},
};
MODULE_DEVICE_TABLE(of, mmc_pwrseq_simple_of_match);
static int mmc_pwrseq_simple_probe(struct platform_device *pdev)
{
struct mmc_pwrseq_simple *pwrseq;
int ret = 0;
struct device *dev = &pdev->dev;
pwrseq = kzalloc(sizeof(*pwrseq), GFP_KERNEL);
pwrseq = devm_kzalloc(dev, sizeof(*pwrseq), GFP_KERNEL);
if (!pwrseq)
return ERR_PTR(-ENOMEM);
return -ENOMEM;
pwrseq->ext_clk = clk_get(dev, "ext_clock");
if (IS_ERR(pwrseq->ext_clk) &&
PTR_ERR(pwrseq->ext_clk) != -ENOENT) {
ret = PTR_ERR(pwrseq->ext_clk);
goto free;
}
pwrseq->ext_clk = devm_clk_get(dev, "ext_clock");
if (IS_ERR(pwrseq->ext_clk) && PTR_ERR(pwrseq->ext_clk) != -ENOENT)
return PTR_ERR(pwrseq->ext_clk);
pwrseq->reset_gpios = gpiod_get_array(dev, "reset", GPIOD_OUT_HIGH);
pwrseq->reset_gpios = devm_gpiod_get_array(dev, "reset",
GPIOD_OUT_HIGH);
if (IS_ERR(pwrseq->reset_gpios) &&
PTR_ERR(pwrseq->reset_gpios) != -ENOENT &&
PTR_ERR(pwrseq->reset_gpios) != -ENOSYS) {
ret = PTR_ERR(pwrseq->reset_gpios);
goto clk_put;
return PTR_ERR(pwrseq->reset_gpios);
}
pwrseq->pwrseq.dev = dev;
pwrseq->pwrseq.ops = &mmc_pwrseq_simple_ops;
pwrseq->pwrseq.owner = THIS_MODULE;
platform_set_drvdata(pdev, pwrseq);
return &pwrseq->pwrseq;
clk_put:
if (!IS_ERR(pwrseq->ext_clk))
clk_put(pwrseq->ext_clk);
free:
kfree(pwrseq);
return ERR_PTR(ret);
return mmc_pwrseq_register(&pwrseq->pwrseq);
}
static int mmc_pwrseq_simple_remove(struct platform_device *pdev)
{
struct mmc_pwrseq_simple *pwrseq = platform_get_drvdata(pdev);
mmc_pwrseq_unregister(&pwrseq->pwrseq);
return 0;
}
static struct platform_driver mmc_pwrseq_simple_driver = {
.probe = mmc_pwrseq_simple_probe,
.remove = mmc_pwrseq_simple_remove,
.driver = {
.name = "pwrseq_simple",
.of_match_table = mmc_pwrseq_simple_of_match,
},
};
module_platform_driver(mmc_pwrseq_simple_driver);
MODULE_LICENSE("GPL v2");

7
drivers/mmc/core/sdio_cis.c
View File

@ -177,8 +177,13 @@ static int cistpl_funce_func(struct mmc_card *card, struct sdio_func *func,
vsn = func->card->cccr.sdio_vsn;
min_size = (vsn == SDIO_SDIO_REV_1_00) ? 28 : 42;
if (size < min_size)
if (size == 28 && vsn == SDIO_SDIO_REV_1_10) {
pr_warn("%s: card has broken SDIO 1.1 CIS, forcing SDIO 1.0\n",
mmc_hostname(card->host));
vsn = SDIO_SDIO_REV_1_00;
} else if (size < min_size) {
return -EINVAL;
}
/* TPLFE_MAX_BLK_SIZE */
func->max_blksize = buf[12] | (buf[13] << 8);

4
drivers/mmc/host/Kconfig
View File

@ -677,9 +677,9 @@ config MMC_SH_MMCIF
depends on HAS_DMA
depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
help
This selects the MMC Host Interface controller (MMCIF).
This selects the MMC Host Interface controller (MMCIF) found in various
Renesas SoCs for SH and ARM architectures.
This driver supports MMCIF in sh7724/sh7757/sh7372.
config MMC_JZ4740
tristate "JZ4740 SD/Multimedia Card Interface support"

9
drivers/mmc/host/atmel-mci.c
View File

@ -1410,8 +1410,6 @@ static void atmci_request(struct mmc_host *mmc, struct mmc_request *mrq)
WARN_ON(slot->mrq);
dev_dbg(&host->pdev->dev, "MRQ: cmd %u\n", mrq->cmd->opcode);
pm_runtime_get_sync(&host->pdev->dev);
/*
* We may "know" the card is gone even though there's still an
* electrical connection. If so, we really need to communicate
@ -1442,8 +1440,6 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
struct atmel_mci *host = slot->host;
unsigned int i;
pm_runtime_get_sync(&host->pdev->dev);
slot->sdc_reg &= ~ATMCI_SDCBUS_MASK;
switch (ios->bus_width) {
case MMC_BUS_WIDTH_1:
@ -1576,8 +1572,6 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
break;
}
pm_runtime_mark_last_busy(&host->pdev->dev);
pm_runtime_put_autosuspend(&host->pdev->dev);
}
static int atmci_get_ro(struct mmc_host *mmc)
@ -1669,9 +1663,6 @@ static void atmci_request_end(struct atmel_mci *host, struct mmc_request *mrq)
spin_unlock(&host->lock);
mmc_request_done(prev_mmc, mrq);
spin_lock(&host->lock);
pm_runtime_mark_last_busy(&host->pdev->dev);
pm_runtime_put_autosuspend(&host->pdev->dev);
}
static void atmci_command_complete(struct atmel_mci *host,

151
drivers/mmc/host/davinci_mmc.c
View File

@ -32,12 +32,10 @@
#include <linux/delay.h>
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/edma.h>
#include <linux/mmc/mmc.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_data/edma.h>
#include <linux/platform_data/mmc-davinci.h>
/*
@ -202,7 +200,6 @@ struct mmc_davinci_host {
u32 buffer_bytes_left;
u32 bytes_left;
u32 rxdma, txdma;
struct dma_chan *dma_tx;
struct dma_chan *dma_rx;
bool use_dma;
@ -513,35 +510,20 @@ davinci_release_dma_channels(struct mmc_davinci_host *host)
static int __init davinci_acquire_dma_channels(struct mmc_davinci_host *host)
{
int r;
dma_cap_mask_t mask;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma_tx =
dma_request_slave_channel_compat(mask, edma_filter_fn,
&host->txdma, mmc_dev(host->mmc), "tx");
if (!host->dma_tx) {
host->dma_tx = dma_request_chan(mmc_dev(host->mmc), "tx");
if (IS_ERR(host->dma_tx)) {
dev_err(mmc_dev(host->mmc), "Can't get dma_tx channel\n");
return -ENODEV;
return PTR_ERR(host->dma_tx);
}
host->dma_rx =
dma_request_slave_channel_compat(mask, edma_filter_fn,
&host->rxdma, mmc_dev(host->mmc), "rx");
if (!host->dma_rx) {
host->dma_rx = dma_request_chan(mmc_dev(host->mmc), "rx");
if (IS_ERR(host->dma_rx)) {
dev_err(mmc_dev(host->mmc), "Can't get dma_rx channel\n");
r = -ENODEV;
goto free_master_write;
dma_release_channel(host->dma_tx);
return PTR_ERR(host->dma_rx);
}
return 0;
free_master_write:
dma_release_channel(host->dma_tx);
return r;
}
/*----------------------------------------------------------------------*/
@ -1223,7 +1205,7 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
struct mmc_davinci_host *host = NULL;
struct mmc_host *mmc = NULL;
struct resource *r, *mem = NULL;
int ret = 0, irq = 0;
int ret, irq;
size_t mem_size;
const struct platform_device_id *id_entry;
@ -1233,50 +1215,40 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
return -ENOENT;
}
ret = -ENODEV;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
if (!r || irq == NO_IRQ)
goto out;
return -ENODEV;
ret = -EBUSY;
mem_size = resource_size(r);
mem = request_mem_region(r->start, mem_size, pdev->name);
mem = devm_request_mem_region(&pdev->dev, r->start, mem_size,
pdev->name);
if (!mem)
goto out;
return -EBUSY;
ret = -ENOMEM;
mmc = mmc_alloc_host(sizeof(struct mmc_davinci_host), &pdev->dev);
if (!mmc)
goto out;
return -ENOMEM;
host = mmc_priv(mmc);
host->mmc = mmc; /* Important */
r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!r)
dev_warn(&pdev->dev, "RX DMA resource not specified\n");
else
host->rxdma = r->start;
r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!r)
dev_warn(&pdev->dev, "TX DMA resource not specified\n");
else
host->txdma = r->start;
host->mem_res = mem;
host->base = ioremap(mem->start, mem_size);
if (!host->base)
goto out;
host->base = devm_ioremap(&pdev->dev, mem->start, mem_size);
if (!host->base) {
ret = -ENOMEM;
goto ioremap_fail;
}
ret = -ENXIO;
host->clk = clk_get(&pdev->dev, "MMCSDCLK");
host->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(host->clk)) {
ret = PTR_ERR(host->clk);
goto out;
goto clk_get_fail;
}
clk_enable(host->clk);
ret = clk_prepare_enable(host->clk);
if (ret)
goto clk_prepare_enable_fail;
host->mmc_input_clk = clk_get_rate(host->clk);
init_mmcsd_host(host);
@ -1291,8 +1263,13 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
host->mmc_irq = irq;
host->sdio_irq = platform_get_irq(pdev, 1);
if (host->use_dma && davinci_acquire_dma_channels(host) != 0)
host->use_dma = 0;
if (host->use_dma) {
ret = davinci_acquire_dma_channels(host);
if (ret == -EPROBE_DEFER)
goto dma_probe_defer;
else if (ret)
host->use_dma = 0;
}
/* REVISIT: someday, support IRQ-driven card detection. */
mmc->caps |= MMC_CAP_NEEDS_POLL;
@ -1346,15 +1323,17 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
ret = mmc_add_host(mmc);
if (ret < 0)
goto out;
goto mmc_add_host_fail;
ret = request_irq(irq, mmc_davinci_irq, 0, mmc_hostname(mmc), host);
ret = devm_request_irq(&pdev->dev, irq, mmc_davinci_irq, 0,
mmc_hostname(mmc), host);
if (ret)
goto out;
goto request_irq_fail;
if (host->sdio_irq >= 0) {
ret = request_irq(host->sdio_irq, mmc_davinci_sdio_irq, 0,
mmc_hostname(mmc), host);
ret = devm_request_irq(&pdev->dev, host->sdio_irq,
mmc_davinci_sdio_irq, 0,
mmc_hostname(mmc), host);
if (!ret)
mmc->caps |= MMC_CAP_SDIO_IRQ;
}
@ -1367,28 +1346,18 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
return 0;
out:
request_irq_fail:
mmc_remove_host(mmc);
mmc_add_host_fail:
mmc_davinci_cpufreq_deregister(host);
cpu_freq_fail:
if (host) {
davinci_release_dma_channels(host);
if (host->clk) {
clk_disable(host->clk);
clk_put(host->clk);
}
if (host->base)
iounmap(host->base);
}
if (mmc)
mmc_free_host(mmc);
if (mem)
release_resource(mem);
dev_dbg(&pdev->dev, "probe err %d\n", ret);
davinci_release_dma_channels(host);
dma_probe_defer:
clk_disable_unprepare(host->clk);
clk_prepare_enable_fail:
clk_get_fail:
ioremap_fail:
mmc_free_host(mmc);
return ret;
}
@ -1397,25 +1366,11 @@ static int __exit davinci_mmcsd_remove(struct platform_device *pdev)
{
struct mmc_davinci_host *host = platform_get_drvdata(pdev);
if (host) {
mmc_davinci_cpufreq_deregister(host);
mmc_remove_host(host->mmc);
free_irq(host->mmc_irq, host);
if (host->mmc->caps & MMC_CAP_SDIO_IRQ)
free_irq(host->sdio_irq, host);
davinci_release_dma_channels(host);
clk_disable(host->clk);
clk_put(host->clk);
iounmap(host->base);
release_resource(host->mem_res);
mmc_free_host(host->mmc);
}
mmc_remove_host(host->mmc);
mmc_davinci_cpufreq_deregister(host);
davinci_release_dma_channels(host);
clk_disable_unprepare(host->clk);
mmc_free_host(host->mmc);
return 0;
}

23
drivers/mmc/host/dw_mmc-exynos.c
View File

@ -91,10 +91,14 @@ static inline u8 dw_mci_exynos_get_ciu_div(struct dw_mci *host)
return SDMMC_CLKSEL_GET_DIV(mci_readl(host, CLKSEL)) + 1;
}
static int dw_mci_exynos_priv_init(struct dw_mci *host)
static void dw_mci_exynos_config_smu(struct dw_mci *host)
{
struct dw_mci_exynos_priv_data *priv = host->priv;
/*
* If Exynos is provided the Security management,
* set for non-ecryption mode at this time.
*/
if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420_SMU ||
priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU) {
mci_writel(host, MPSBEGIN0, 0);
@ -104,6 +108,13 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host)
SDMMC_MPSCTRL_VALID |
SDMMC_MPSCTRL_NON_SECURE_WRITE_BIT);
}
}
static int dw_mci_exynos_priv_init(struct dw_mci *host)
{
struct dw_mci_exynos_priv_data *priv = host->priv;
dw_mci_exynos_config_smu(host);
if (priv->ctrl_type >= DW_MCI_TYPE_EXYNOS5420) {
priv->saved_strobe_ctrl = mci_readl(host, HS400_DLINE_CTRL);
@ -115,13 +126,6 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host)
DQS_CTRL_GET_RD_DELAY(priv->saved_strobe_ctrl);
}
return 0;
}
static int dw_mci_exynos_setup_clock(struct dw_mci *host)
{
struct dw_mci_exynos_priv_data *priv = host->priv;
host->bus_hz /= (priv->ciu_div + 1);
return 0;
@ -169,7 +173,7 @@ static int dw_mci_exynos_resume(struct device *dev)
{
struct dw_mci *host = dev_get_drvdata(dev);
dw_mci_exynos_priv_init(host);
dw_mci_exynos_config_smu(host);
return dw_mci_resume(host);
}
@ -489,7 +493,6 @@ static unsigned long exynos_dwmmc_caps[4] = {
static const struct dw_mci_drv_data exynos_drv_data = {
.caps = exynos_dwmmc_caps,
.init = dw_mci_exynos_priv_init,
.setup_clock = dw_mci_exynos_setup_clock,
.set_ios = dw_mci_exynos_set_ios,
.parse_dt = dw_mci_exynos_parse_dt,
.execute_tuning = dw_mci_exynos_execute_tuning,

43
drivers/mmc/host/dw_mmc-rockchip.c
View File

@ -26,13 +26,6 @@ struct dw_mci_rockchip_priv_data {
int default_sample_phase;
};
static int dw_mci_rk3288_setup_clock(struct dw_mci *host)
{
host->bus_hz /= RK3288_CLKGEN_DIV;
return 0;
}
static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios)
{
struct dw_mci_rockchip_priv_data *priv = host->priv;
@ -231,18 +224,30 @@ static int dw_mci_rockchip_init(struct dw_mci *host)
/* It needs this quirk on all Rockchip SoCs */
host->pdata->quirks |= DW_MCI_QUIRK_BROKEN_DTO;
if (of_device_is_compatible(host->dev->of_node,
"rockchip,rk3288-dw-mshc"))
host->bus_hz /= RK3288_CLKGEN_DIV;
return 0;
}
/* Common capabilities of RK3288 SoC */
static unsigned long dw_mci_rk3288_dwmmc_caps[4] = {
MMC_CAP_ERASE,
MMC_CAP_ERASE,
MMC_CAP_ERASE,
MMC_CAP_ERASE,
};
static const struct dw_mci_drv_data rk2928_drv_data = {
.init = dw_mci_rockchip_init,
};
static const struct dw_mci_drv_data rk3288_drv_data = {
.caps = dw_mci_rk3288_dwmmc_caps,
.set_ios = dw_mci_rk3288_set_ios,
.execute_tuning = dw_mci_rk3288_execute_tuning,
.parse_dt = dw_mci_rk3288_parse_dt,
.setup_clock = dw_mci_rk3288_setup_clock,
.init = dw_mci_rockchip_init,
};
@ -269,33 +274,13 @@ static int dw_mci_rockchip_probe(struct platform_device *pdev)
return dw_mci_pltfm_register(pdev, drv_data);
}
#ifdef CONFIG_PM_SLEEP
static int dw_mci_rockchip_suspend(struct device *dev)
{
struct dw_mci *host = dev_get_drvdata(dev);
return dw_mci_suspend(host);
}
static int dw_mci_rockchip_resume(struct device *dev)
{
struct dw_mci *host = dev_get_drvdata(dev);
return dw_mci_resume(host);
}
#endif /* CONFIG_PM_SLEEP */
static SIMPLE_DEV_PM_OPS(dw_mci_rockchip_pmops,
dw_mci_rockchip_suspend,
dw_mci_rockchip_resume);
static struct platform_driver dw_mci_rockchip_pltfm_driver = {
.probe = dw_mci_rockchip_probe,
.remove = dw_mci_pltfm_remove,
.driver = {
.name = "dwmmc_rockchip",
.of_match_table = dw_mci_rockchip_match,
.pm = &dw_mci_rockchip_pmops,
.pm = &dw_mci_pltfm_pmops,
},
};

11
drivers/mmc/host/dw_mmc.c
View File

@ -680,7 +680,7 @@ static const struct dw_mci_dma_ops dw_mci_idmac_ops = {
static void dw_mci_edmac_stop_dma(struct dw_mci *host)
{
dmaengine_terminate_all(host->dms->ch);
dmaengine_terminate_async(host->dms->ch);
}
static int dw_mci_edmac_start_dma(struct dw_mci *host,
@ -3003,15 +3003,6 @@ int dw_mci_probe(struct dw_mci *host)
}
}
if (drv_data && drv_data->setup_clock) {
ret = drv_data->setup_clock(host);
if (ret) {
dev_err(host->dev,
"implementation specific clock setup failed\n");
goto err_clk_ciu;
}
}
setup_timer(&host->cmd11_timer,
dw_mci_cmd11_timer, (unsigned long)host);

2
drivers/mmc/host/dw_mmc.h
View File

@ -277,7 +277,6 @@ struct dw_mci_slot {
* dw_mci driver data - dw-mshc implementation specific driver data.
* @caps: mmc subsystem specified capabilities of the controller(s).
* @init: early implementation specific initialization.
* @setup_clock: implementation specific clock configuration.
* @set_ios: handle bus specific extensions.
* @parse_dt: parse implementation specific device tree properties.
* @execute_tuning: implementation specific tuning procedure.
@ -289,7 +288,6 @@ struct dw_mci_slot {
struct dw_mci_drv_data {
unsigned long *caps;
int (*init)(struct dw_mci *host);
int (*setup_clock)(struct dw_mci *host);
void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
int (*parse_dt)(struct dw_mci *host);
int (*execute_tuning)(struct dw_mci_slot *slot, u32 opcode);

20
drivers/mmc/host/mmci.c
View File

@ -226,16 +226,11 @@ static int mmci_card_busy(struct mmc_host *mmc)
unsigned long flags;
int busy = 0;
pm_runtime_get_sync(mmc_dev(mmc));
spin_lock_irqsave(&host->lock, flags);
if (readl(host->base + MMCISTATUS) & MCI_ST_CARDBUSY)
busy = 1;
spin_unlock_irqrestore(&host->lock, flags);
pm_runtime_mark_last_busy(mmc_dev(mmc));
pm_runtime_put_autosuspend(mmc_dev(mmc));
return busy;
}
@ -381,9 +376,6 @@ mmci_request_end(struct mmci_host *host, struct mmc_request *mrq)
host->cmd = NULL;
mmc_request_done(host->mmc, mrq);
pm_runtime_mark_last_busy(mmc_dev(host->mmc));
pm_runtime_put_autosuspend(mmc_dev(host->mmc));
}
static void mmci_set_mask1(struct mmci_host *host, unsigned int mask)
@ -1290,8 +1282,6 @@ static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq)
return;
}
pm_runtime_get_sync(mmc_dev(mmc));
spin_lock_irqsave(&host->lock, flags);
host->mrq = mrq;
@ -1318,8 +1308,6 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
unsigned long flags;
int ret;
pm_runtime_get_sync(mmc_dev(mmc));
if (host->plat->ios_handler &&
host->plat->ios_handler(mmc_dev(mmc), ios))
dev_err(mmc_dev(mmc), "platform ios_handler failed\n");
@ -1414,9 +1402,6 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
mmci_reg_delay(host);
spin_unlock_irqrestore(&host->lock, flags);
pm_runtime_mark_last_busy(mmc_dev(mmc));
pm_runtime_put_autosuspend(mmc_dev(mmc));
}
static int mmci_get_cd(struct mmc_host *mmc)
@ -1440,8 +1425,6 @@ static int mmci_sig_volt_switch(struct mmc_host *mmc, struct mmc_ios *ios)
if (!IS_ERR(mmc->supply.vqmmc)) {
pm_runtime_get_sync(mmc_dev(mmc));
switch (ios->signal_voltage) {
case MMC_SIGNAL_VOLTAGE_330:
ret = regulator_set_voltage(mmc->supply.vqmmc,
@ -1459,9 +1442,6 @@ static int mmci_sig_volt_switch(struct mmc_host *mmc, struct mmc_ios *ios)
if (ret)
dev_warn(mmc_dev(mmc), "Voltage switch failed\n");
pm_runtime_mark_last_busy(mmc_dev(mmc));
pm_runtime_put_autosuspend(mmc_dev(mmc));
}
return ret;

19
drivers/mmc/host/mtk-sd.c
View File

@ -736,9 +736,6 @@ static void msdc_request_done(struct msdc_host *host, struct mmc_request *mrq)
if (mrq->data)
msdc_unprepare_data(host, mrq);
mmc_request_done(host->mmc, mrq);
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
}
/* returns true if command is fully handled; returns false otherwise */
@ -886,8 +883,6 @@ static void msdc_ops_request(struct mmc_host *mmc, struct mmc_request *mrq)
WARN_ON(host->mrq);
host->mrq = mrq;
pm_runtime_get_sync(host->dev);
if (mrq->data)
msdc_prepare_data(host, mrq);
@ -1201,8 +1196,6 @@ static void msdc_ops_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
struct msdc_host *host = mmc_priv(mmc);
int ret;
pm_runtime_get_sync(host->dev);
msdc_set_buswidth(host, ios->bus_width);
/* Suspend/Resume will do power off/on */
@ -1214,7 +1207,7 @@ static void msdc_ops_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
ios->vdd);
if (ret) {
dev_err(host->dev, "Failed to set vmmc power!\n");
goto end;
return;
}
}
break;
@ -1242,10 +1235,6 @@ static void msdc_ops_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (host->mclk != ios->clock || host->timing != ios->timing)
msdc_set_mclk(host, ios->timing, ios->clock);
end:
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
}
static u32 test_delay_bit(u32 delay, u32 bit)
@ -1408,19 +1397,15 @@ static int msdc_execute_tuning(struct mmc_host *mmc, u32 opcode)
struct msdc_host *host = mmc_priv(mmc);
int ret;
pm_runtime_get_sync(host->dev);
ret = msdc_tune_response(mmc, opcode);
if (ret == -EIO) {
dev_err(host->dev, "Tune response fail!\n");
goto out;
return ret;
}
ret = msdc_tune_data(mmc, opcode);
if (ret == -EIO)
dev_err(host->dev, "Tune data fail!\n");
out:
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
return ret;
}

46
drivers/mmc/host/omap.c
View File

@ -23,7 +23,6 @@
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/of.h>
#include <linux/omap-dma.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/mmc/mmc.h>
@ -1321,8 +1320,6 @@ static int mmc_omap_probe(struct platform_device *pdev)
struct omap_mmc_platform_data *pdata = pdev->dev.platform_data;
struct mmc_omap_host *host = NULL;
struct resource *res;
dma_cap_mask_t mask;
unsigned sig = 0;
int i, ret = 0;
int irq;
@ -1382,29 +1379,34 @@ static int mmc_omap_probe(struct platform_device *pdev)
goto err_free_iclk;
}
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma_tx_burst = -1;
host->dma_rx_burst = -1;
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
if (res)
sig = res->start;
host->dma_tx = dma_request_slave_channel_compat(mask,
omap_dma_filter_fn, &sig, &pdev->dev, "tx");
if (!host->dma_tx)
dev_warn(host->dev, "unable to obtain TX DMA engine channel %u\n",
sig);
host->dma_tx = dma_request_chan(&pdev->dev, "tx");
if (IS_ERR(host->dma_tx)) {
ret = PTR_ERR(host->dma_tx);
if (ret == -EPROBE_DEFER) {
clk_put(host->fclk);
goto err_free_iclk;
}
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
if (res)
sig = res->start;
host->dma_rx = dma_request_slave_channel_compat(mask,
omap_dma_filter_fn, &sig, &pdev->dev, "rx");
if (!host->dma_rx)
dev_warn(host->dev, "unable to obtain RX DMA engine channel %u\n",
sig);
host->dma_tx = NULL;
dev_warn(host->dev, "TX DMA channel request failed\n");
}
host->dma_rx = dma_request_chan(&pdev->dev, "rx");
if (IS_ERR(host->dma_rx)) {
ret = PTR_ERR(host->dma_rx);
if (ret == -EPROBE_DEFER) {
if (host->dma_tx)
dma_release_channel(host->dma_tx);
clk_put(host->fclk);
goto err_free_iclk;
}
host->dma_rx = NULL;
dev_warn(host->dev, "RX DMA channel request failed\n");
}
ret = request_irq(host->irq, mmc_omap_irq, 0, DRIVER_NAME, host);
if (ret)

90
drivers/mmc/host/omap_hsmmc.c
View File

@ -32,7 +32,6 @@
#include <linux/of_irq.h>
#include <linux/of_gpio.h>
#include <linux/of_device.h>
#include <linux/omap-dmaengine.h>
#include <linux/mmc/host.h>
#include <linux/mmc/core.h>
#include <linux/mmc/mmc.h>
@ -351,15 +350,14 @@ static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on,
return 0;
}
static int omap_hsmmc_set_power(struct device *dev, int power_on, int vdd)
static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
int vdd)
{
struct omap_hsmmc_host *host =
platform_get_drvdata(to_platform_device(dev));
struct mmc_host *mmc = host->mmc;
int ret = 0;
if (mmc_pdata(host)->set_power)
return mmc_pdata(host)->set_power(dev, power_on, vdd);
return mmc_pdata(host)->set_power(host->dev, power_on, vdd);
/*
* If we don't see a Vcc regulator, assume it's a fixed
@ -369,7 +367,7 @@ static int omap_hsmmc_set_power(struct device *dev, int power_on, int vdd)
return 0;
if (mmc_pdata(host)->before_set_reg)
mmc_pdata(host)->before_set_reg(dev, power_on, vdd);
mmc_pdata(host)->before_set_reg(host->dev, power_on, vdd);
ret = omap_hsmmc_set_pbias(host, false, 0);
if (ret)
@ -403,7 +401,7 @@ static int omap_hsmmc_set_power(struct device *dev, int power_on, int vdd)
}
if (mmc_pdata(host)->after_set_reg)
mmc_pdata(host)->after_set_reg(dev, power_on, vdd);
mmc_pdata(host)->after_set_reg(host->dev, power_on, vdd);
return 0;
@ -968,8 +966,6 @@ static void omap_hsmmc_request_done(struct omap_hsmmc_host *host, struct mmc_req
return;
host->mrq = NULL;
mmc_request_done(host->mmc, mrq);
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
}
/*
@ -1250,17 +1246,15 @@ static int omap_hsmmc_switch_opcond(struct omap_hsmmc_host *host, int vdd)
int ret;
/* Disable the clocks */
pm_runtime_put_sync(host->dev);
if (host->dbclk)
clk_disable_unprepare(host->dbclk);
/* Turn the power off */
ret = omap_hsmmc_set_power(host->dev, 0, 0);
ret = omap_hsmmc_set_power(host, 0, 0);
/* Turn the power ON with given VDD 1.8 or 3.0v */
if (!ret)
ret = omap_hsmmc_set_power(host->dev, 1, vdd);
pm_runtime_get_sync(host->dev);
ret = omap_hsmmc_set_power(host, 1, vdd);
if (host->dbclk)
clk_prepare_enable(host->dbclk);
@ -1368,8 +1362,6 @@ static void omap_hsmmc_dma_callback(void *param)
host->mrq = NULL;
mmc_request_done(host->mmc, mrq);
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
}
}
@ -1602,7 +1594,6 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
BUG_ON(host->req_in_progress);
BUG_ON(host->dma_ch != -1);
pm_runtime_get_sync(host->dev);
if (host->protect_card) {
if (host->reqs_blocked < 3) {
/*
@ -1619,8 +1610,6 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
req->data->error = -EBADF;
req->cmd->retries = 0;
mmc_request_done(mmc, req);
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
return;
} else if (host->reqs_blocked)
host->reqs_blocked = 0;
@ -1634,8 +1623,6 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
req->data->error = err;
host->mrq = NULL;
mmc_request_done(mmc, req);
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
return;
}
if (req->sbc && !(host->flags & AUTO_CMD23)) {
@ -1653,15 +1640,13 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
struct omap_hsmmc_host *host = mmc_priv(mmc);
int do_send_init_stream = 0;
pm_runtime_get_sync(host->dev);
if (ios->power_mode != host->power_mode) {
switch (ios->power_mode) {
case MMC_POWER_OFF:
omap_hsmmc_set_power(host->dev, 0, 0);
omap_hsmmc_set_power(host, 0, 0);
break;
case MMC_POWER_UP:
omap_hsmmc_set_power(host->dev, 1, ios->vdd);
omap_hsmmc_set_power(host, 1, ios->vdd);
break;
case MMC_POWER_ON:
do_send_init_stream = 1;
@ -1698,8 +1683,6 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
send_init_stream(host);
omap_hsmmc_set_bus_mode(host);
pm_runtime_put_autosuspend(host->dev);
}
static int omap_hsmmc_get_cd(struct mmc_host *mmc)
@ -1962,13 +1945,17 @@ MODULE_DEVICE_TABLE(of, omap_mmc_of_match);
static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
{
struct omap_hsmmc_platform_data *pdata;
struct omap_hsmmc_platform_data *pdata, *legacy;
struct device_node *np = dev->of_node;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return ERR_PTR(-ENOMEM); /* out of memory */
legacy = dev_get_platdata(dev);
if (legacy && legacy->name)
pdata->name = legacy->name;
if (of_find_property(np, "ti,dual-volt", NULL))
pdata->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;
@ -2005,8 +1992,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
struct resource *res;
int ret, irq;
const struct of_device_id *match;
dma_cap_mask_t mask;
unsigned tx_req, rx_req;
const struct omap_mmc_of_data *data;
void __iomem *base;
@ -2136,44 +2121,17 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
omap_hsmmc_conf_bus_power(host);
if (!pdev->dev.of_node) {
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
if (!res) {
dev_err(mmc_dev(host->mmc), "cannot get DMA TX channel\n");
ret = -ENXIO;
goto err_irq;
}
tx_req = res->start;
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
if (!res) {
dev_err(mmc_dev(host->mmc), "cannot get DMA RX channel\n");
ret = -ENXIO;
goto err_irq;
}
rx_req = res->start;
}
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->rx_chan =
dma_request_slave_channel_compat(mask, omap_dma_filter_fn,
&rx_req, &pdev->dev, "rx");
if (!host->rx_chan) {
dev_err(mmc_dev(host->mmc), "unable to obtain RX DMA engine channel\n");
ret = -ENXIO;
host->rx_chan = dma_request_chan(&pdev->dev, "rx");
if (IS_ERR(host->rx_chan)) {
dev_err(mmc_dev(host->mmc), "RX DMA channel request failed\n");
ret = PTR_ERR(host->rx_chan);
goto err_irq;
}
host->tx_chan =
dma_request_slave_channel_compat(mask, omap_dma_filter_fn,
&tx_req, &pdev->dev, "tx");
if (!host->tx_chan) {
dev_err(mmc_dev(host->mmc), "unable to obtain TX DMA engine channel\n");
ret = -ENXIO;
host->tx_chan = dma_request_chan(&pdev->dev, "tx");
if (IS_ERR(host->tx_chan)) {
dev_err(mmc_dev(host->mmc), "TX DMA channel request failed\n");
ret = PTR_ERR(host->tx_chan);
goto err_irq;
}
@ -2231,9 +2189,9 @@ err_slot_name:
mmc_remove_host(mmc);
err_irq:
device_init_wakeup(&pdev->dev, false);
if (host->tx_chan)
if (!IS_ERR_OR_NULL(host->tx_chan))
dma_release_channel(host->tx_chan);
if (host->rx_chan)
if (!IS_ERR_OR_NULL(host->rx_chan))
dma_release_channel(host->rx_chan);
pm_runtime_dont_use_autosuspend(host->dev);
pm_runtime_put_sync(host->dev);

9
drivers/mmc/host/sdhci-acpi.c
View File

@ -200,8 +200,6 @@ static int bxt_get_cd(struct mmc_host *mmc)
if (!gpio_cd)
return 0;
pm_runtime_get_sync(mmc->parent);
spin_lock_irqsave(&host->lock, flags);
if (host->flags & SDHCI_DEVICE_DEAD)
@ -211,9 +209,6 @@ static int bxt_get_cd(struct mmc_host *mmc)
out:
spin_unlock_irqrestore(&host->lock, flags);
pm_runtime_mark_last_busy(mmc->parent);
pm_runtime_put_autosuspend(mmc->parent);
return ret;
}
@ -267,8 +262,10 @@ static int sdhci_acpi_sd_probe_slot(struct platform_device *pdev,
/* Platform specific code during sd probe slot goes here */
if (hid && !strcmp(hid, "80865ACA"))
if (hid && !strcmp(hid, "80865ACA")) {
host->mmc_host_ops.get_cd = bxt_get_cd;
host->mmc->caps |= MMC_CAP_AGGRESSIVE_PM;
}
return 0;
}

26
drivers/mmc/host/sdhci-of-arasan.c
View File

@ -55,8 +55,32 @@ static unsigned int sdhci_arasan_get_timeout_clock(struct sdhci_host *host)
return freq;
}
static void sdhci_arasan_set_clock(struct sdhci_host *host, unsigned int clock)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_arasan_data *sdhci_arasan = sdhci_pltfm_priv(pltfm_host);
bool ctrl_phy = false;
if (clock > MMC_HIGH_52_MAX_DTR && (!IS_ERR(sdhci_arasan->phy)))
ctrl_phy = true;
if (ctrl_phy) {
spin_unlock_irq(&host->lock);
phy_power_off(sdhci_arasan->phy);
spin_lock_irq(&host->lock);
}
sdhci_set_clock(host, clock);
if (ctrl_phy) {
spin_unlock_irq(&host->lock);
phy_power_on(sdhci_arasan->phy);
spin_lock_irq(&host->lock);
}
}
static struct sdhci_ops sdhci_arasan_ops = {
.set_clock = sdhci_set_clock,
.set_clock = sdhci_arasan_set_clock,
.get_max_clock = sdhci_pltfm_clk_get_max_clock,
.get_timeout_clock = sdhci_arasan_get_timeout_clock,
.set_bus_width = sdhci_set_bus_width,

74
drivers/mmc/host/sdhci-of-at91.c
View File

@ -15,8 +15,10 @@
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mmc/host.h>
#include <linux/mmc/slot-gpio.h>
#include <linux/module.h>
@ -31,14 +33,60 @@
#define SDMMC_CACR_CAPWREN BIT(0)
#define SDMMC_CACR_KEY (0x46 << 8)
#define SDHCI_AT91_PRESET_COMMON_CONF 0x400 /* drv type B, programmable clock mode */
struct sdhci_at91_priv {
struct clk *hclock;
struct clk *gck;
struct clk *mainck;
};
static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
{
u16 clk;
unsigned long timeout;
host->mmc->actual_clock = 0;
/*
* There is no requirement to disable the internal clock before
* changing the SD clock configuration. Moreover, disabling the
* internal clock, changing the configuration and re-enabling the
* internal clock causes some bugs. It can prevent to get the internal
* clock stable flag ready and an unexpected switch to the base clock
* when using presets.
*/
clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
clk &= SDHCI_CLOCK_INT_EN;
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
if (clock == 0)
return;
clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock);
clk |= SDHCI_CLOCK_INT_EN;
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
/* Wait max 20 ms */
timeout = 20;
while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL))
& SDHCI_CLOCK_INT_STABLE)) {
if (timeout == 0) {
pr_err("%s: Internal clock never stabilised.\n",
mmc_hostname(host->mmc));
return;
}
timeout--;
mdelay(1);
}
clk |= SDHCI_CLOCK_CARD_EN;
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
}
static const struct sdhci_ops sdhci_at91_sama5d2_ops = {
.set_clock = sdhci_set_clock,
.set_clock = sdhci_at91_set_clock,
.set_bus_width = sdhci_set_bus_width,
.reset = sdhci_reset,
.set_uhs_signaling = sdhci_set_uhs_signaling,
@ -46,7 +94,6 @@ static const struct sdhci_ops sdhci_at91_sama5d2_ops = {
static const struct sdhci_pltfm_data soc_data_sama5d2 = {
.ops = &sdhci_at91_sama5d2_ops,
.quirks2 = SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST,
};
static const struct of_device_id sdhci_at91_dt_match[] = {
@ -119,6 +166,7 @@ static int sdhci_at91_probe(struct platform_device *pdev)
unsigned int clk_base, clk_mul;
unsigned int gck_rate, real_gck_rate;
int ret;
unsigned int preset_div;
match = of_match_device(sdhci_at91_dt_match, &pdev->dev);
if (!match)
@ -186,6 +234,28 @@ static int sdhci_at91_probe(struct platform_device *pdev)
clk_mul, real_gck_rate);
}
/*
* We have to set preset values because it depends on the clk_mul
* value. Moreover, SDR104 is supported in a degraded mode since the
* maximum sd clock value is 120 MHz instead of 208 MHz. For that
* reason, we need to use presets to support SDR104.
*/
preset_div = DIV_ROUND_UP(real_gck_rate, 24000000) - 1;
writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div,
host->ioaddr + SDHCI_PRESET_FOR_SDR12);
preset_div = DIV_ROUND_UP(real_gck_rate, 50000000) - 1;
writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div,
host->ioaddr + SDHCI_PRESET_FOR_SDR25);
preset_div = DIV_ROUND_UP(real_gck_rate, 100000000) - 1;
writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div,
host->ioaddr + SDHCI_PRESET_FOR_SDR50);
preset_div = DIV_ROUND_UP(real_gck_rate, 120000000) - 1;
writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div,
host->ioaddr + SDHCI_PRESET_FOR_SDR104);
preset_div = DIV_ROUND_UP(real_gck_rate, 50000000) - 1;
writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div,
host->ioaddr + SDHCI_PRESET_FOR_DDR50);
clk_prepare_enable(priv->mainck);
clk_prepare_enable(priv->gck);

9
drivers/mmc/host/sdhci-pci-core.c
View File

@ -340,8 +340,6 @@ static int bxt_get_cd(struct mmc_host *mmc)
if (!gpio_cd)
return 0;
pm_runtime_get_sync(mmc->parent);
spin_lock_irqsave(&host->lock, flags);
if (host->flags & SDHCI_DEVICE_DEAD)
@ -351,9 +349,6 @@ static int bxt_get_cd(struct mmc_host *mmc)
out:
spin_unlock_irqrestore(&host->lock, flags);
pm_runtime_mark_last_busy(mmc->parent);
pm_runtime_put_autosuspend(mmc->parent);
return ret;
}
@ -391,8 +386,10 @@ static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
slot->cd_override_level = true;
if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXTM_SD ||
slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD)
slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD) {
slot->host->mmc_host_ops.get_cd = bxt_get_cd;
slot->host->mmc->caps |= MMC_CAP_AGGRESSIVE_PM;
}
return 0;
}

1
drivers/mmc/host/sdhci-pic32.c
View File

@ -243,7 +243,6 @@ MODULE_DEVICE_TABLE(of, pic32_sdhci_id_table);
static struct platform_driver pic32_sdhci_driver = {
.driver = {
.name = "pic32-sdhci",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(pic32_sdhci_id_table),
},
.probe = pic32_sdhci_probe,

42
drivers/mmc/host/sdhci-pltfm.c
View File

@ -119,16 +119,22 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
{
struct sdhci_host *host;
struct resource *iomem;
int ret;
void __iomem *ioaddr;
int irq, ret;
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iomem) {
ret = -ENOMEM;
ioaddr = devm_ioremap_resource(&pdev->dev, iomem);
if (IS_ERR(ioaddr)) {
ret = PTR_ERR(ioaddr);
goto err;
}
if (resource_size(iomem) < 0x100)
dev_err(&pdev->dev, "Invalid iomem size!\n");
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get IRQ number\n");
ret = irq;
goto err;
}
host = sdhci_alloc_host(&pdev->dev,
sizeof(struct sdhci_pltfm_host) + priv_size);
@ -138,6 +144,8 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
goto err;
}
host->ioaddr = ioaddr;
host->irq = irq;
host->hw_name = dev_name(&pdev->dev);
if (pdata && pdata->ops)
host->ops = pdata->ops;
@ -148,22 +156,6 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
host->quirks2 = pdata->quirks2;
}
host->irq = platform_get_irq(pdev, 0);
if (!request_mem_region(iomem->start, resource_size(iomem),
mmc_hostname(host->mmc))) {
dev_err(&pdev->dev, "cannot request region\n");
ret = -EBUSY;
goto err_request;
}
host->ioaddr = ioremap(iomem->start, resource_size(iomem));
if (!host->ioaddr) {
dev_err(&pdev->dev, "failed to remap registers\n");
ret = -ENOMEM;
goto err_remap;
}
/*
* Some platforms need to probe the controller to be able to
* determine which caps should be used.
@ -174,11 +166,6 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
platform_set_drvdata(pdev, host);
return host;
err_remap:
release_mem_region(iomem->start, resource_size(iomem));
err_request:
sdhci_free_host(host);
err:
dev_err(&pdev->dev, "%s failed %d\n", __func__, ret);
return ERR_PTR(ret);
@ -188,10 +175,7 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_init);
void sdhci_pltfm_free(struct platform_device *pdev)
{
struct sdhci_host *host = platform_get_drvdata(pdev);
struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
iounmap(host->ioaddr);
release_mem_region(iomem->start, resource_size(iomem));
sdhci_free_host(host);
}
EXPORT_SYMBOL_GPL(sdhci_pltfm_free);

320
drivers/mmc/host/sdhci.c
View File

@ -38,11 +38,6 @@
#define DBG(f, x...) \
pr_debug(DRIVER_NAME " [%s()]: " f, __func__,## x)
#if defined(CONFIG_LEDS_CLASS) || (defined(CONFIG_LEDS_CLASS_MODULE) && \
defined(CONFIG_MMC_SDHCI_MODULE))
#define SDHCI_USE_LEDS_CLASS
#endif
#define MAX_TUNING_LOOP 40
static unsigned int debug_quirks = 0;
@ -53,29 +48,7 @@ static void sdhci_finish_data(struct sdhci_host *);
static void sdhci_finish_command(struct sdhci_host *);
static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
static int sdhci_do_get_cd(struct sdhci_host *host);
#ifdef CONFIG_PM
static int sdhci_runtime_pm_get(struct sdhci_host *host);
static int sdhci_runtime_pm_put(struct sdhci_host *host);
static void sdhci_runtime_pm_bus_on(struct sdhci_host *host);
static void sdhci_runtime_pm_bus_off(struct sdhci_host *host);
#else
static inline int sdhci_runtime_pm_get(struct sdhci_host *host)
{
return 0;
}
static inline int sdhci_runtime_pm_put(struct sdhci_host *host)
{
return 0;
}
static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
{
}
static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)
{
}
#endif
static int sdhci_get_cd(struct mmc_host *mmc);
static void sdhci_dumpregs(struct sdhci_host *host)
{
@ -171,6 +144,22 @@ static void sdhci_disable_card_detection(struct sdhci_host *host)
sdhci_set_card_detection(host, false);
}
static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
{
if (host->bus_on)
return;
host->bus_on = true;
pm_runtime_get_noresume(host->mmc->parent);
}
static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)
{
if (!host->bus_on)
return;
host->bus_on = false;
pm_runtime_put_noidle(host->mmc->parent);
}
void sdhci_reset(struct sdhci_host *host, u8 mask)
{
unsigned long timeout;
@ -204,7 +193,7 @@ EXPORT_SYMBOL_GPL(sdhci_reset);
static void sdhci_do_reset(struct sdhci_host *host, u8 mask)
{
if (host->quirks & SDHCI_QUIRK_NO_CARD_NO_RESET) {
if (!sdhci_do_get_cd(host))
if (!sdhci_get_cd(host->mmc))
return;
}
@ -252,7 +241,7 @@ static void sdhci_reinit(struct sdhci_host *host)
sdhci_enable_card_detection(host);
}
static void sdhci_activate_led(struct sdhci_host *host)
static void __sdhci_led_activate(struct sdhci_host *host)
{
u8 ctrl;
@ -261,7 +250,7 @@ static void sdhci_activate_led(struct sdhci_host *host)
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
}
static void sdhci_deactivate_led(struct sdhci_host *host)
static void __sdhci_led_deactivate(struct sdhci_host *host)
{
u8 ctrl;
@ -270,9 +259,9 @@ static void sdhci_deactivate_led(struct sdhci_host *host)
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
}
#ifdef SDHCI_USE_LEDS_CLASS
#if IS_REACHABLE(CONFIG_LEDS_CLASS)
static void sdhci_led_control(struct led_classdev *led,
enum led_brightness brightness)
enum led_brightness brightness)
{
struct sdhci_host *host = container_of(led, struct sdhci_host, led);
unsigned long flags;
@ -283,12 +272,62 @@ static void sdhci_led_control(struct led_classdev *led,
goto out;
if (brightness == LED_OFF)
sdhci_deactivate_led(host);
__sdhci_led_deactivate(host);
else
sdhci_activate_led(host);
__sdhci_led_activate(host);
out:
spin_unlock_irqrestore(&host->lock, flags);
}
static int sdhci_led_register(struct sdhci_host *host)
{
struct mmc_host *mmc = host->mmc;
snprintf(host->led_name, sizeof(host->led_name),
"%s::", mmc_hostname(mmc));
host->led.name = host->led_name;
host->led.brightness = LED_OFF;
host->led.default_trigger = mmc_hostname(mmc);
host->led.brightness_set = sdhci_led_control;
return led_classdev_register(mmc_dev(mmc), &host->led);
}
static void sdhci_led_unregister(struct sdhci_host *host)
{
led_classdev_unregister(&host->led);
}
static inline void sdhci_led_activate(struct sdhci_host *host)
{
}
static inline void sdhci_led_deactivate(struct sdhci_host *host)
{
}
#else
static inline int sdhci_led_register(struct sdhci_host *host)
{
return 0;
}
static inline void sdhci_led_unregister(struct sdhci_host *host)
{
}
static inline void sdhci_led_activate(struct sdhci_host *host)
{
__sdhci_led_activate(host);
}
static inline void sdhci_led_deactivate(struct sdhci_host *host)
{
__sdhci_led_deactivate(host);
}
#endif
/*****************************************************************************\
@ -1091,23 +1130,14 @@ static u16 sdhci_get_preset_value(struct sdhci_host *host)
return preset;
}
void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
u16 sdhci_calc_clk(struct sdhci_host *host, unsigned int clock,
unsigned int *actual_clock)
{
int div = 0; /* Initialized for compiler warning */
int real_div = div, clk_mul = 1;
u16 clk = 0;
unsigned long timeout;
bool switch_base_clk = false;
host->mmc->actual_clock = 0;
sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
if (host->quirks2 & SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST)
mdelay(1);
if (clock == 0)
return;
if (host->version >= SDHCI_SPEC_300) {
if (host->preset_enabled) {
u16 pre_val;
@ -1184,10 +1214,29 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
clock_set:
if (real_div)
host->mmc->actual_clock = (host->max_clk * clk_mul) / real_div;
*actual_clock = (host->max_clk * clk_mul) / real_div;
clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
<< SDHCI_DIVIDER_HI_SHIFT;
return clk;
}
EXPORT_SYMBOL_GPL(sdhci_calc_clk);
void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
{
u16 clk;
unsigned long timeout;
host->mmc->actual_clock = 0;
sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
if (clock == 0)
return;
clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock);
clk |= SDHCI_CLOCK_INT_EN;
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
@ -1319,8 +1368,6 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
host = mmc_priv(mmc);
sdhci_runtime_pm_get(host);
/* Firstly check card presence */
present = mmc->ops->get_cd(mmc);
@ -1328,9 +1375,7 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
WARN_ON(host->mrq != NULL);
#ifndef SDHCI_USE_LEDS_CLASS
sdhci_activate_led(host);
#endif
sdhci_led_activate(host);
/*
* Ensure we don't send the STOP for non-SET_BLOCK_COUNTED
@ -1405,11 +1450,11 @@ void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing)
}
EXPORT_SYMBOL_GPL(sdhci_set_uhs_signaling);
static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct sdhci_host *host = mmc_priv(mmc);
unsigned long flags;
u8 ctrl;
struct mmc_host *mmc = host->mmc;
spin_lock_irqsave(&host->lock, flags);
@ -1563,18 +1608,10 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
spin_unlock_irqrestore(&host->lock, flags);
}
static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
static int sdhci_get_cd(struct mmc_host *mmc)
{
struct sdhci_host *host = mmc_priv(mmc);
sdhci_runtime_pm_get(host);
sdhci_do_set_ios(host, ios);
sdhci_runtime_pm_put(host);
}
static int sdhci_do_get_cd(struct sdhci_host *host)
{
int gpio_cd = mmc_gpio_get_cd(host->mmc);
int gpio_cd = mmc_gpio_get_cd(mmc);
if (host->flags & SDHCI_DEVICE_DEAD)
return 0;
@ -1598,17 +1635,6 @@ static int sdhci_do_get_cd(struct sdhci_host *host)
return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
}
static int sdhci_get_cd(struct mmc_host *mmc)
{
struct sdhci_host *host = mmc_priv(mmc);
int ret;
sdhci_runtime_pm_get(host);
ret = sdhci_do_get_cd(host);
sdhci_runtime_pm_put(host);
return ret;
}
static int sdhci_check_ro(struct sdhci_host *host)
{
unsigned long flags;
@ -1633,8 +1659,9 @@ static int sdhci_check_ro(struct sdhci_host *host)
#define SAMPLE_COUNT 5
static int sdhci_do_get_ro(struct sdhci_host *host)
static int sdhci_get_ro(struct mmc_host *mmc)
{
struct sdhci_host *host = mmc_priv(mmc);
int i, ro_count;
if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT))
@ -1659,17 +1686,6 @@ static void sdhci_hw_reset(struct mmc_host *mmc)
host->ops->hw_reset(host);
}
static int sdhci_get_ro(struct mmc_host *mmc)
{
struct sdhci_host *host = mmc_priv(mmc);
int ret;
sdhci_runtime_pm_get(host);
ret = sdhci_do_get_ro(host);
sdhci_runtime_pm_put(host);
return ret;
}
static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable)
{
if (!(host->flags & SDHCI_DEVICE_DEAD)) {
@ -1689,8 +1705,6 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
struct sdhci_host *host = mmc_priv(mmc);
unsigned long flags;
sdhci_runtime_pm_get(host);
spin_lock_irqsave(&host->lock, flags);
if (enable)
host->flags |= SDHCI_SDIO_IRQ_ENABLED;
@ -1699,14 +1713,12 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
sdhci_enable_sdio_irq_nolock(host, enable);
spin_unlock_irqrestore(&host->lock, flags);
sdhci_runtime_pm_put(host);
}
static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
struct mmc_ios *ios)
static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
struct mmc_ios *ios)
{
struct mmc_host *mmc = host->mmc;
struct sdhci_host *host = mmc_priv(mmc);
u16 ctrl;
int ret;
@ -1794,29 +1806,13 @@ static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
}
}
static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
struct mmc_ios *ios)
{
struct sdhci_host *host = mmc_priv(mmc);
int err;
if (host->version < SDHCI_SPEC_300)
return 0;
sdhci_runtime_pm_get(host);
err = sdhci_do_start_signal_voltage_switch(host, ios);
sdhci_runtime_pm_put(host);
return err;
}
static int sdhci_card_busy(struct mmc_host *mmc)
{
struct sdhci_host *host = mmc_priv(mmc);
u32 present_state;
sdhci_runtime_pm_get(host);
/* Check whether DAT[3:0] is 0000 */
present_state = sdhci_readl(host, SDHCI_PRESENT_STATE);
sdhci_runtime_pm_put(host);
return !(present_state & SDHCI_DATA_LVL_MASK);
}
@ -1843,7 +1839,6 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
unsigned int tuning_count = 0;
bool hs400_tuning;
sdhci_runtime_pm_get(host);
spin_lock_irqsave(&host->lock, flags);
hs400_tuning = host->flags & SDHCI_HS400_TUNING;
@ -1879,8 +1874,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
break;
case MMC_TIMING_UHS_SDR50:
if (host->flags & SDHCI_SDR50_NEEDS_TUNING ||
host->flags & SDHCI_SDR104_NEEDS_TUNING)
if (host->flags & SDHCI_SDR50_NEEDS_TUNING)
break;
/* FALLTHROUGH */
@ -1891,7 +1885,6 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
if (host->ops->platform_execute_tuning) {
spin_unlock_irqrestore(&host->lock, flags);
err = host->ops->platform_execute_tuning(host, opcode);
sdhci_runtime_pm_put(host);
return err;
}
@ -2023,8 +2016,6 @@ out:
sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
out_unlock:
spin_unlock_irqrestore(&host->lock, flags);
sdhci_runtime_pm_put(host);
return err;
}
@ -2105,7 +2096,7 @@ static void sdhci_card_event(struct mmc_host *mmc)
if (host->ops->card_event)
host->ops->card_event(host);
present = sdhci_do_get_cd(host);
present = sdhci_get_cd(host->mmc);
spin_lock_irqsave(&host->lock, flags);
@ -2214,15 +2205,12 @@ static void sdhci_tasklet_finish(unsigned long param)
host->cmd = NULL;
host->data = NULL;
#ifndef SDHCI_USE_LEDS_CLASS
sdhci_deactivate_led(host);
#endif
sdhci_led_deactivate(host);
mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
mmc_request_done(host->mmc, mrq);
sdhci_runtime_pm_put(host);
}
static void sdhci_timeout_timer(unsigned long data)
@ -2679,7 +2667,7 @@ int sdhci_resume_host(struct sdhci_host *host)
sdhci_init(host, 0);
host->pwr = 0;
host->clock = 0;
sdhci_do_set_ios(host, &host->mmc->ios);
sdhci_set_ios(host->mmc, &host->mmc->ios);
} else {
sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER));
mmiowb();
@ -2703,33 +2691,6 @@ int sdhci_resume_host(struct sdhci_host *host)
EXPORT_SYMBOL_GPL(sdhci_resume_host);
static int sdhci_runtime_pm_get(struct sdhci_host *host)
{
return pm_runtime_get_sync(host->mmc->parent);
}
static int sdhci_runtime_pm_put(struct sdhci_host *host)
{
pm_runtime_mark_last_busy(host->mmc->parent);
return pm_runtime_put_autosuspend(host->mmc->parent);
}
static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
{
if (host->bus_on)
return;
host->bus_on = true;
pm_runtime_get_noresume(host->mmc->parent);
}
static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)
{
if (!host->bus_on)
return;
host->bus_on = false;
pm_runtime_put_noidle(host->mmc->parent);
}
int sdhci_runtime_suspend_host(struct sdhci_host *host)
{
unsigned long flags;
@ -2768,8 +2729,8 @@ int sdhci_runtime_resume_host(struct sdhci_host *host)
/* Force clock and power re-program */
host->pwr = 0;
host->clock = 0;
sdhci_do_start_signal_voltage_switch(host, &host->mmc->ios);
sdhci_do_set_ios(host, &host->mmc->ios);
sdhci_start_signal_voltage_switch(host->mmc, &host->mmc->ios);
sdhci_set_ios(host->mmc, &host->mmc->ios);
if ((host_flags & SDHCI_PV_ENABLED) &&
!(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) {
@ -3014,7 +2975,8 @@ int sdhci_add_host(struct sdhci_host *host)
if (!host->ops->get_max_clock) {
pr_err("%s: Hardware doesn't specify base clock frequency.\n",
mmc_hostname(mmc));
return -ENODEV;
ret = -ENODEV;
goto undma;
}
host->max_clk = host->ops->get_max_clock(host);
}
@ -3051,7 +3013,7 @@ int sdhci_add_host(struct sdhci_host *host)
} else
mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200;
if (!mmc->f_max || (mmc->f_max && (mmc->f_max > max_clk)))
if (!mmc->f_max || mmc->f_max > max_clk)
mmc->f_max = max_clk;
if (!(host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) {
@ -3064,7 +3026,8 @@ int sdhci_add_host(struct sdhci_host *host)
} else {
pr_err("%s: Hardware doesn't specify timeout clock frequency.\n",
mmc_hostname(mmc));
return -ENODEV;
ret = -ENODEV;
goto undma;
}
}
@ -3118,8 +3081,9 @@ int sdhci_add_host(struct sdhci_host *host)
mmc->caps |= MMC_CAP_NEEDS_POLL;
/* If there are external regulators, get them */
if (mmc_regulator_get_supply(mmc) == -EPROBE_DEFER)
return -EPROBE_DEFER;
ret = mmc_regulator_get_supply(mmc);
if (ret == -EPROBE_DEFER)
goto undma;
/* If vqmmc regulator and no 1.8V signalling, then there's no UHS */
if (!IS_ERR(mmc->supply.vqmmc)) {
@ -3174,10 +3138,6 @@ int sdhci_add_host(struct sdhci_host *host)
if (caps[1] & SDHCI_USE_SDR50_TUNING)
host->flags |= SDHCI_SDR50_NEEDS_TUNING;
/* Does the host need tuning for SDR104 / HS200? */
if (mmc->caps2 & MMC_CAP2_HS200)
host->flags |= SDHCI_SDR104_NEEDS_TUNING;
/* Driver Type(s) (A, C, D) supported by the host */
if (caps[1] & SDHCI_DRIVER_TYPE_A)
mmc->caps |= MMC_CAP_DRIVER_TYPE_A;
@ -3276,7 +3236,8 @@ int sdhci_add_host(struct sdhci_host *host)
if (mmc->ocr_avail == 0) {
pr_err("%s: Hardware doesn't report any support voltages.\n",
mmc_hostname(mmc));
return -ENODEV;
ret = -ENODEV;
goto unreg;
}
spin_lock_init(&host->lock);
@ -3360,25 +3321,18 @@ int sdhci_add_host(struct sdhci_host *host)
sdhci_dumpregs(host);
#endif
#ifdef SDHCI_USE_LEDS_CLASS
snprintf(host->led_name, sizeof(host->led_name),
"%s::", mmc_hostname(mmc));
host->led.name = host->led_name;
host->led.brightness = LED_OFF;
host->led.default_trigger = mmc_hostname(mmc);
host->led.brightness_set = sdhci_led_control;
ret = led_classdev_register(mmc_dev(mmc), &host->led);
ret = sdhci_led_register(host);
if (ret) {
pr_err("%s: Failed to register LED device: %d\n",
mmc_hostname(mmc), ret);
goto reset;
goto unirq;
}
#endif
mmiowb();
mmc_add_host(mmc);
ret = mmc_add_host(mmc);
if (ret)
goto unled;
pr_info("%s: SDHCI controller on %s [%s] using %s\n",
mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)),
@ -3390,15 +3344,25 @@ int sdhci_add_host(struct sdhci_host *host)
return 0;
#ifdef SDHCI_USE_LEDS_CLASS
reset:
unled:
sdhci_led_unregister(host);
unirq:
sdhci_do_reset(host, SDHCI_RESET_ALL);
sdhci_writel(host, 0, SDHCI_INT_ENABLE);
sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE);
free_irq(host->irq, host);
#endif
untasklet:
tasklet_kill(&host->finish_tasklet);
unreg:
if (!IS_ERR(mmc->supply.vqmmc))
regulator_disable(mmc->supply.vqmmc);
undma:
if (host->align_buffer)
dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz +
host->adma_table_sz, host->align_buffer,
host->align_addr);
host->adma_table = NULL;
host->align_buffer = NULL;
return ret;
}
@ -3430,9 +3394,7 @@ void sdhci_remove_host(struct sdhci_host *host, int dead)
mmc_remove_host(mmc);
#ifdef SDHCI_USE_LEDS_CLASS
led_classdev_unregister(&host->led);
#endif
sdhci_led_unregister(host);
if (!dead)
sdhci_do_reset(host, SDHCI_RESET_ALL);

10
drivers/mmc/host/sdhci.h
View File

@ -417,11 +417,6 @@ struct sdhci_host {
#define SDHCI_QUIRK2_ACMD23_BROKEN (1<<14)
/* Broken Clock divider zero in controller */
#define SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN (1<<15)
/*
* When internal clock is disabled, a delay is needed before modifying the
* SD clock frequency or enabling back the internal clock.
*/
#define SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST (1<<16)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
@ -433,7 +428,7 @@ struct sdhci_host {
struct mmc_host_ops mmc_host_ops; /* MMC host ops */
u64 dma_mask; /* custom DMA mask */
#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
#if IS_ENABLED(CONFIG_LEDS_CLASS)
struct led_classdev led; /* LED control */
char led_name[32];
#endif
@ -450,7 +445,6 @@ struct sdhci_host {
#define SDHCI_AUTO_CMD23 (1<<7) /* Auto CMD23 support */
#define SDHCI_PV_ENABLED (1<<8) /* Preset value enabled */
#define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */
#define SDHCI_SDR104_NEEDS_TUNING (1<<10) /* SDR104/HS200 needs tuning */
#define SDHCI_USE_64_BIT_DMA (1<<12) /* Use 64-bit DMA */
#define SDHCI_HS400_TUNING (1<<13) /* Tuning for HS400 */
@ -661,6 +655,8 @@ static inline bool sdhci_sdio_irq_enabled(struct sdhci_host *host)
return !!(host->flags & SDHCI_SDIO_IRQ_ENABLED);
}
u16 sdhci_calc_clk(struct sdhci_host *host, unsigned int clock,
unsigned int *actual_clock);
void sdhci_set_clock(struct sdhci_host *host, unsigned int clock);
void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
unsigned short vdd);

76
drivers/mmc/host/sh_mmcif.c
View File

@ -248,7 +248,6 @@ struct sh_mmcif_host {
int sg_idx;
int sg_blkidx;
bool power;
bool card_present;
bool ccs_enable; /* Command Completion Signal support */
bool clk_ctrl2_enable;
struct mutex thread_lock;
@ -1064,16 +1063,6 @@ static void sh_mmcif_clk_setup(struct sh_mmcif_host *host)
host->mmc->f_max, host->mmc->f_min);
}
static void sh_mmcif_set_power(struct sh_mmcif_host *host, struct mmc_ios *ios)
{
struct mmc_host *mmc = host->mmc;
if (!IS_ERR(mmc->supply.vmmc))
/* Errors ignored... */
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc,
ios->power_mode ? ios->vdd : 0);
}
static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct sh_mmcif_host *host = mmc_priv(mmc);
@ -1091,42 +1080,32 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
host->state = STATE_IOS;
spin_unlock_irqrestore(&host->lock, flags);
if (ios->power_mode == MMC_POWER_UP) {
if (!host->card_present) {
/* See if we also get DMA */
sh_mmcif_request_dma(host);
host->card_present = true;
}
sh_mmcif_set_power(host, ios);
} else if (ios->power_mode == MMC_POWER_OFF || !ios->clock) {
/* clock stop */
sh_mmcif_clock_control(host, 0);
if (ios->power_mode == MMC_POWER_OFF) {
if (host->card_present) {
sh_mmcif_release_dma(host);
host->card_present = false;
}
}
if (host->power) {
pm_runtime_put_sync(dev);
clk_disable_unprepare(host->clk);
host->power = false;
if (ios->power_mode == MMC_POWER_OFF)
sh_mmcif_set_power(host, ios);
}
host->state = STATE_IDLE;
return;
}
if (ios->clock) {
switch (ios->power_mode) {
case MMC_POWER_UP:
if (!IS_ERR(mmc->supply.vmmc))
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
if (!host->power) {
clk_prepare_enable(host->clk);
pm_runtime_get_sync(dev);
host->power = true;
sh_mmcif_sync_reset(host);
sh_mmcif_request_dma(host);
host->power = true;
}
break;
case MMC_POWER_OFF:
if (!IS_ERR(mmc->supply.vmmc))
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
if (host->power) {
sh_mmcif_clock_control(host, 0);
sh_mmcif_release_dma(host);
pm_runtime_put(dev);
clk_disable_unprepare(host->clk);
host->power = false;
}
break;
case MMC_POWER_ON:
sh_mmcif_clock_control(host, ios->clock);
break;
}
host->timing = ios->timing;
@ -1519,23 +1498,23 @@ static int sh_mmcif_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, host);
pm_runtime_enable(dev);
host->power = false;
host->clk = devm_clk_get(dev, NULL);
if (IS_ERR(host->clk)) {
ret = PTR_ERR(host->clk);
dev_err(dev, "cannot get clock: %d\n", ret);
goto err_pm;
goto err_host;
}
ret = clk_prepare_enable(host->clk);
if (ret < 0)
goto err_pm;
goto err_host;
sh_mmcif_clk_setup(host);
ret = pm_runtime_resume(dev);
pm_runtime_enable(dev);
host->power = false;
ret = pm_runtime_get_sync(dev);
if (ret < 0)
goto err_clk;
@ -1579,12 +1558,13 @@ static int sh_mmcif_probe(struct platform_device *pdev)
sh_mmcif_readl(host->addr, MMCIF_CE_VERSION) & 0xffff,
clk_get_rate(host->clk) / 1000000UL);
pm_runtime_put(dev);
clk_disable_unprepare(host->clk);
return ret;
err_clk:
clk_disable_unprepare(host->clk);
err_pm:
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
err_host:
mmc_free_host(mmc);

194
drivers/mmc/host/sh_mobile_sdhi.c
View File

@ -28,10 +28,12 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/sh_dma.h>
#include <linux/delay.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pinctrl/pinctrl-state.h>
#include <linux/regulator/consumer.h>
#include "tmio_mmc.h"
@ -48,10 +50,8 @@ struct sh_mobile_sdhi_of_data {
unsigned bus_shift;
};
static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = {
{
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
},
static const struct sh_mobile_sdhi_of_data of_default_cfg = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
};
static const struct sh_mobile_sdhi_of_data of_rcar_gen1_compatible = {
@ -62,7 +62,7 @@ static const struct sh_mobile_sdhi_of_data of_rcar_gen1_compatible = {
static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
TMIO_MMC_CLK_ACTUAL | TMIO_MMC_FAST_CLK_CHG,
TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
.dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES,
.dma_rx_offset = 0x2000,
@ -70,17 +70,16 @@ static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = {
static const struct sh_mobile_sdhi_of_data of_rcar_gen3_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
TMIO_MMC_CLK_ACTUAL | TMIO_MMC_FAST_CLK_CHG,
.capabilities = MMC_CAP_SD_HIGHSPEED,
TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
.bus_shift = 2,
};
static const struct of_device_id sh_mobile_sdhi_of_match[] = {
{ .compatible = "renesas,sdhi-shmobile" },
{ .compatible = "renesas,sdhi-sh7372" },
{ .compatible = "renesas,sdhi-sh73a0", .data = &sh_mobile_sdhi_of_cfg[0], },
{ .compatible = "renesas,sdhi-r8a73a4", .data = &sh_mobile_sdhi_of_cfg[0], },
{ .compatible = "renesas,sdhi-r8a7740", .data = &sh_mobile_sdhi_of_cfg[0], },
{ .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, },
@ -97,6 +96,8 @@ struct sh_mobile_sdhi {
struct clk *clk;
struct tmio_mmc_data mmc_data;
struct tmio_mmc_dma dma_priv;
struct pinctrl *pinctrl;
struct pinctrl_state *pins_default, *pins_uhs;
};
static void sh_mobile_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width)
@ -131,16 +132,28 @@ static void sh_mobile_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width)
sd_ctrl_write16(host, EXT_ACC, val);
}
static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int *f)
static int sh_mobile_sdhi_clk_enable(struct tmio_mmc_host *host)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct tmio_mmc_host *host = mmc_priv(mmc);
struct mmc_host *mmc = host->mmc;
struct sh_mobile_sdhi *priv = host_to_priv(host);
int ret = clk_prepare_enable(priv->clk);
if (ret < 0)
return ret;
*f = clk_get_rate(priv->clk);
/*
* The clock driver may not know what maximum frequency
* actually works, so it should be set with the max-frequency
* property which will already have been read to f_max. If it
* was missing, assume the current frequency is the maximum.
*/
if (!mmc->f_max)
mmc->f_max = clk_get_rate(priv->clk);
/*
* Minimum frequency is the minimum input clock frequency
* divided by our maximum divider.
*/
mmc->f_min = max(clk_round_rate(priv->clk, 1) / 512, 1L);
/* enable 16bit data access on SDBUF as default */
sh_mobile_sdhi_sdbuf_width(host, 16);
@ -148,19 +161,92 @@ static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int
return 0;
}
static void sh_mobile_sdhi_clk_disable(struct platform_device *pdev)
static unsigned int sh_mobile_sdhi_clk_update(struct tmio_mmc_host *host,
unsigned int new_clock)
{
struct sh_mobile_sdhi *priv = host_to_priv(host);
unsigned int freq, diff, best_freq = 0, diff_min = ~0;
int i, ret;
/* tested only on RCar Gen2+ currently; may work for others */
if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
return clk_get_rate(priv->clk);
/*
* We want the bus clock to be as close as possible to, but no
* greater than, new_clock. As we can divide by 1 << i for
* any i in [0, 9] we want the input clock to be as close as
* possible, but no greater than, new_clock << i.
*/
for (i = min(9, ilog2(UINT_MAX / new_clock)); i >= 0; i--) {
freq = clk_round_rate(priv->clk, new_clock << i);
if (freq > (new_clock << i)) {
/* Too fast; look for a slightly slower option */
freq = clk_round_rate(priv->clk,
(new_clock << i) / 4 * 3);
if (freq > (new_clock << i))
continue;
}
diff = new_clock - (freq >> i);
if (diff <= diff_min) {
best_freq = freq;
diff_min = diff;
}
}
ret = clk_set_rate(priv->clk, best_freq);
return ret == 0 ? best_freq : clk_get_rate(priv->clk);
}
static void sh_mobile_sdhi_clk_disable(struct tmio_mmc_host *host)
{
struct sh_mobile_sdhi *priv = host_to_priv(host);
clk_disable_unprepare(priv->clk);
}
static int sh_mobile_sdhi_start_signal_voltage_switch(struct mmc_host *mmc,
struct mmc_ios *ios)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct tmio_mmc_host *host = mmc_priv(mmc);
struct sh_mobile_sdhi *priv = host_to_priv(host);
clk_disable_unprepare(priv->clk);
struct pinctrl_state *pin_state;
int ret;
switch (ios->signal_voltage) {
case MMC_SIGNAL_VOLTAGE_330:
pin_state = priv->pins_default;
break;
case MMC_SIGNAL_VOLTAGE_180:
pin_state = priv->pins_uhs;
break;
default:
return -EINVAL;
}
/*
* If anything is missing, assume signal voltage is fixed at
* 3.3V and succeed/fail accordingly.
*/
if (IS_ERR(priv->pinctrl) || IS_ERR(pin_state))
return ios->signal_voltage ==
MMC_SIGNAL_VOLTAGE_330 ? 0 : -EINVAL;
ret = mmc_regulator_set_vqmmc(host->mmc, ios);
if (ret)
return ret;
return pinctrl_select_state(priv->pinctrl, pin_state);
}
static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host)
{
int timeout = 1000;
while (--timeout && !(sd_ctrl_read16(host, CTL_STATUS2) & (1 << 13)))
while (--timeout && !(sd_ctrl_read16_and_16_as_32(host, CTL_STATUS)
& TMIO_STAT_SCLKDIVEN))
udelay(1);
if (!timeout) {
@ -226,7 +312,6 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
struct tmio_mmc_host *host;
struct resource *res;
int irq, ret, i = 0;
bool multiplexed_isr = true;
struct tmio_mmc_dma *dma_priv;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@ -247,6 +332,14 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
goto eprobe;
}
priv->pinctrl = devm_pinctrl_get(&pdev->dev);
if (!IS_ERR(priv->pinctrl)) {
priv->pins_default = pinctrl_lookup_state(priv->pinctrl,
PINCTRL_STATE_DEFAULT);
priv->pins_uhs = pinctrl_lookup_state(priv->pinctrl,
"state_uhs");
}
host = tmio_mmc_host_alloc(pdev);
if (!host) {
ret = -ENOMEM;
@ -267,8 +360,10 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
host->dma = dma_priv;
host->write16_hook = sh_mobile_sdhi_write16_hook;
host->clk_enable = sh_mobile_sdhi_clk_enable;
host->clk_update = sh_mobile_sdhi_clk_update;
host->clk_disable = sh_mobile_sdhi_clk_disable;
host->multi_io_quirk = sh_mobile_sdhi_multi_io_quirk;
host->start_signal_voltage_switch = sh_mobile_sdhi_start_signal_voltage_switch;
/* Orginally registers were 16 bit apart, could be 32 or 64 nowadays */
if (!host->bus_shift && resource_size(res) > 0x100) /* old way to determine the shift */
@ -308,63 +403,24 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
if (ret < 0)
goto efree;
/*
* Allow one or more specific (named) ISRs or
* one or more multiplexed (un-named) ISRs.
*/
irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_CARD_DETECT);
if (irq >= 0) {
multiplexed_isr = false;
ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_card_detect_irq, 0,
while (1) {
irq = platform_get_irq(pdev, i);
if (irq < 0)
break;
i++;
ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, 0,
dev_name(&pdev->dev), host);
if (ret)
goto eirq;
}
irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDIO);
if (irq >= 0) {
multiplexed_isr = false;
ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_sdio_irq, 0,
dev_name(&pdev->dev), host);
if (ret)
goto eirq;
}
irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDCARD);
if (irq >= 0) {
multiplexed_isr = false;
ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_sdcard_irq, 0,
dev_name(&pdev->dev), host);
if (ret)
goto eirq;
} else if (!multiplexed_isr) {
dev_err(&pdev->dev,
"Principal SD-card IRQ is missing among named interrupts\n");
/* There must be at least one IRQ source */
if (!i) {
ret = irq;
goto eirq;
}
if (multiplexed_isr) {
while (1) {
irq = platform_get_irq(pdev, i);
if (irq < 0)
break;
i++;
ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, 0,
dev_name(&pdev->dev), host);
if (ret)
goto eirq;
}
/* There must be at least one IRQ source */
if (!i) {
ret = irq;
goto eirq;
}
}
dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n",
dev_info(&pdev->dev, "%s base at 0x%08lx max clock rate %u MHz\n",
mmc_hostname(host->mmc), (unsigned long)
(platform_get_resource(pdev, IORESOURCE_MEM, 0)->start),
host->mmc->f_max / 1000000);

75
drivers/mmc/host/tmio_mmc.h
View File

@ -1,6 +1,8 @@
/*
* linux/drivers/mmc/host/tmio_mmc.h
*
* Copyright (C) 2016 Sang Engineering, Wolfram Sang
* Copyright (C) 2015-16 Renesas Electronics Corporation
* Copyright (C) 2007 Ian Molton
* Copyright (C) 2004 Ian Molton
*
@ -18,12 +20,67 @@
#include <linux/dmaengine.h>
#include <linux/highmem.h>
#include <linux/mmc/tmio.h>
#include <linux/mutex.h>
#include <linux/pagemap.h>
#include <linux/scatterlist.h>
#include <linux/spinlock.h>
#define CTL_SD_CMD 0x00
#define CTL_ARG_REG 0x04
#define CTL_STOP_INTERNAL_ACTION 0x08
#define CTL_XFER_BLK_COUNT 0xa
#define CTL_RESPONSE 0x0c
/* driver merges STATUS and following STATUS2 */
#define CTL_STATUS 0x1c
/* driver merges IRQ_MASK and following IRQ_MASK2 */
#define CTL_IRQ_MASK 0x20
#define CTL_SD_CARD_CLK_CTL 0x24
#define CTL_SD_XFER_LEN 0x26
#define CTL_SD_MEM_CARD_OPT 0x28
#define CTL_SD_ERROR_DETAIL_STATUS 0x2c
#define CTL_SD_DATA_PORT 0x30
#define CTL_TRANSACTION_CTL 0x34
#define CTL_SDIO_STATUS 0x36
#define CTL_SDIO_IRQ_MASK 0x38
#define CTL_DMA_ENABLE 0xd8
#define CTL_RESET_SD 0xe0
#define CTL_VERSION 0xe2
#define CTL_SDIO_REGS 0x100
#define CTL_CLK_AND_WAIT_CTL 0x138
#define CTL_RESET_SDIO 0x1e0
/* Definitions for values the CTRL_STATUS register can take. */
#define TMIO_STAT_CMDRESPEND BIT(0)
#define TMIO_STAT_DATAEND BIT(2)
#define TMIO_STAT_CARD_REMOVE BIT(3)
#define TMIO_STAT_CARD_INSERT BIT(4)
#define TMIO_STAT_SIGSTATE BIT(5)
#define TMIO_STAT_WRPROTECT BIT(7)
#define TMIO_STAT_CARD_REMOVE_A BIT(8)
#define TMIO_STAT_CARD_INSERT_A BIT(9)
#define TMIO_STAT_SIGSTATE_A BIT(10)
/* These belong technically to CTRL_STATUS2, but the driver merges them */
#define TMIO_STAT_CMD_IDX_ERR BIT(16)
#define TMIO_STAT_CRCFAIL BIT(17)
#define TMIO_STAT_STOPBIT_ERR BIT(18)
#define TMIO_STAT_DATATIMEOUT BIT(19)
#define TMIO_STAT_RXOVERFLOW BIT(20)
#define TMIO_STAT_TXUNDERRUN BIT(21)
#define TMIO_STAT_CMDTIMEOUT BIT(22)
#define TMIO_STAT_DAT0 BIT(23) /* only known on R-Car so far */
#define TMIO_STAT_RXRDY BIT(24)
#define TMIO_STAT_TXRQ BIT(25)
#define TMIO_STAT_ILL_FUNC BIT(29) /* only when !TMIO_MMC_HAS_IDLE_WAIT */
#define TMIO_STAT_SCLKDIVEN BIT(29) /* only when TMIO_MMC_HAS_IDLE_WAIT */
#define TMIO_STAT_CMD_BUSY BIT(30)
#define TMIO_STAT_ILL_ACCESS BIT(31)
#define CLK_CTL_DIV_MASK 0xff
#define CLK_CTL_SCLKEN BIT(8)
#define TMIO_BBS 512 /* Boot block size */
/* Definitions for values the CTRL_SDIO_STATUS register can take. */
#define TMIO_SDIO_STAT_IOIRQ 0x0001
#define TMIO_SDIO_STAT_EXPUB52 0x4000
@ -95,10 +152,14 @@ struct tmio_mmc_host {
bool sdio_irq_enabled;
int (*write16_hook)(struct tmio_mmc_host *host, int addr);
int (*clk_enable)(struct platform_device *pdev, unsigned int *f);
void (*clk_disable)(struct platform_device *pdev);
int (*clk_enable)(struct tmio_mmc_host *host);
unsigned int (*clk_update)(struct tmio_mmc_host *host,
unsigned int new_clock);
void (*clk_disable)(struct tmio_mmc_host *host);
int (*multi_io_quirk)(struct mmc_card *card,
unsigned int direction, int blk_size);
int (*start_signal_voltage_switch)(struct mmc_host *mmc,
struct mmc_ios *ios);
};
struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev);
@ -111,9 +172,6 @@ void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);
void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
irqreturn_t tmio_mmc_irq(int irq, void *devid);
irqreturn_t tmio_mmc_sdcard_irq(int irq, void *devid);
irqreturn_t tmio_mmc_card_detect_irq(int irq, void *devid);
irqreturn_t tmio_mmc_sdio_irq(int irq, void *devid);
static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
unsigned long *flags)
@ -177,7 +235,7 @@ static inline void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr,
readsw(host->ctl + (addr << host->bus_shift), buf, count);
}
static inline u32 sd_ctrl_read32(struct tmio_mmc_host *host, int addr)
static inline u32 sd_ctrl_read16_and_16_as_32(struct tmio_mmc_host *host, int addr)
{
return readw(host->ctl + (addr << host->bus_shift)) |
readw(host->ctl + ((addr + 2) << host->bus_shift)) << 16;
@ -199,11 +257,10 @@ static inline void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr,
writesw(host->ctl + (addr << host->bus_shift), buf, count);
}
static inline void sd_ctrl_write32(struct tmio_mmc_host *host, int addr, u32 val)
static inline void sd_ctrl_write32_as_16_and_16(struct tmio_mmc_host *host, int addr, u32 val)
{
writew(val, host->ctl + (addr << host->bus_shift));
writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift));
}
#endif

1
drivers/mmc/host/tmio_mmc_dma.c
View File

@ -15,7 +15,6 @@
#include <linux/dmaengine.h>
#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/mmc/tmio.h>
#include <linux/pagemap.h>
#include <linux/scatterlist.h>

196
drivers/mmc/host/tmio_mmc_pio.c
View File

@ -39,7 +39,6 @@
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
#include <linux/mmc/slot-gpio.h>
#include <linux/mmc/tmio.h>
#include <linux/module.h>
#include <linux/pagemap.h>
#include <linux/platform_device.h>
@ -56,18 +55,18 @@
void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
{
host->sdcard_irq_mask &= ~(i & TMIO_MASK_IRQ);
sd_ctrl_write32(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
}
void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
{
host->sdcard_irq_mask |= (i & TMIO_MASK_IRQ);
sd_ctrl_write32(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
}
static void tmio_mmc_ack_mmc_irqs(struct tmio_mmc_host *host, u32 i)
{
sd_ctrl_write32(host, CTL_STATUS, ~i);
sd_ctrl_write32_as_16_and_16(host, CTL_STATUS, ~i);
}
static void tmio_mmc_init_sg(struct tmio_mmc_host *host, struct mmc_data *data)
@ -154,31 +153,16 @@ static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
}
}
static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
unsigned int new_clock)
static void tmio_mmc_clk_start(struct tmio_mmc_host *host)
{
u32 clk = 0, clock;
sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, CLK_CTL_SCLKEN |
sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
msleep(host->pdata->flags & TMIO_MMC_MIN_RCAR2 ? 1 : 10);
if (new_clock) {
for (clock = host->mmc->f_min, clk = 0x80000080;
new_clock >= (clock << 1);
clk >>= 1)
clock <<= 1;
/* 1/1 clock is option */
if ((host->pdata->flags & TMIO_MMC_CLK_ACTUAL) &&
((clk >> 22) & 0x1))
clk |= 0xff;
}
if (host->set_clk_div)
host->set_clk_div(host->pdev, (clk >> 22) & 1);
sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & CLK_CTL_DIV_MASK);
if (!(host->pdata->flags & TMIO_MMC_FAST_CLK_CHG))
if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) {
sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100);
msleep(10);
}
}
static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
@ -190,19 +174,41 @@ static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
msleep(host->pdata->flags & TMIO_MMC_FAST_CLK_CHG ? 5 : 10);
msleep(host->pdata->flags & TMIO_MMC_MIN_RCAR2 ? 5 : 10);
}
static void tmio_mmc_clk_start(struct tmio_mmc_host *host)
static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
unsigned int new_clock)
{
sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, CLK_CTL_SCLKEN |
sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
msleep(host->pdata->flags & TMIO_MMC_FAST_CLK_CHG ? 1 : 10);
u32 clk = 0, clock;
if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) {
sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100);
msleep(10);
if (new_clock == 0) {
tmio_mmc_clk_stop(host);
return;
}
if (host->clk_update)
clock = host->clk_update(host, new_clock) / 512;
else
clock = host->mmc->f_min;
for (clk = 0x80000080; new_clock >= (clock << 1); clk >>= 1)
clock <<= 1;
/* 1/1 clock is option */
if ((host->pdata->flags & TMIO_MMC_CLK_ACTUAL) && ((clk >> 22) & 0x1))
clk |= 0xff;
if (host->set_clk_div)
host->set_clk_div(host->pdev, (clk >> 22) & 1);
sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & CLK_CTL_DIV_MASK);
if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
msleep(10);
tmio_mmc_clk_start(host);
}
static void tmio_mmc_reset(struct tmio_mmc_host *host)
@ -264,9 +270,6 @@ static void tmio_mmc_reset_work(struct work_struct *work)
tmio_mmc_abort_dma(host);
mmc_request_done(host->mmc, mrq);
pm_runtime_mark_last_busy(mmc_dev(host->mmc));
pm_runtime_put_autosuspend(mmc_dev(host->mmc));
}
/* called with host->lock held, interrupts disabled */
@ -296,9 +299,6 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
tmio_mmc_abort_dma(host);
mmc_request_done(host->mmc, mrq);
pm_runtime_mark_last_busy(mmc_dev(host->mmc));
pm_runtime_put_autosuspend(mmc_dev(host->mmc));
}
static void tmio_mmc_done_work(struct work_struct *work)
@ -375,7 +375,7 @@ static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command
tmio_mmc_enable_mmc_irqs(host, irq_mask);
/* Fire off the command */
sd_ctrl_write32(host, CTL_ARG_REG, cmd->arg);
sd_ctrl_write32_as_16_and_16(host, CTL_ARG_REG, cmd->arg);
sd_ctrl_write16(host, CTL_SD_CMD, c);
return 0;
@ -530,7 +530,7 @@ static void tmio_mmc_data_irq(struct tmio_mmc_host *host)
goto out;
if (host->chan_tx && (data->flags & MMC_DATA_WRITE) && !host->force_pio) {
u32 status = sd_ctrl_read32(host, CTL_STATUS);
u32 status = sd_ctrl_read16_and_16_as_32(host, CTL_STATUS);
bool done = false;
/*
@ -542,7 +542,7 @@ static void tmio_mmc_data_irq(struct tmio_mmc_host *host)
* waiting for one more interrupt fixes the problem.
*/
if (host->pdata->flags & TMIO_MMC_HAS_IDLE_WAIT) {
if (status & TMIO_STAT_ILL_FUNC)
if (status & TMIO_STAT_SCLKDIVEN)
done = true;
} else {
if (!(status & TMIO_STAT_CMD_BUSY))
@ -585,7 +585,7 @@ static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host,
*/
for (i = 3, addr = CTL_RESPONSE ; i >= 0 ; i--, addr += 4)
cmd->resp[i] = sd_ctrl_read32(host, addr);
cmd->resp[i] = sd_ctrl_read16_and_16_as_32(host, addr);
if (cmd->flags & MMC_RSP_136) {
cmd->resp[0] = (cmd->resp[0] << 8) | (cmd->resp[1] >> 24);
@ -625,19 +625,6 @@ out:
spin_unlock(&host->lock);
}
static void tmio_mmc_card_irq_status(struct tmio_mmc_host *host,
int *ireg, int *status)
{
*status = sd_ctrl_read32(host, CTL_STATUS);
*ireg = *status & TMIO_MASK_IRQ & ~host->sdcard_irq_mask;
pr_debug_status(*status);
pr_debug_status(*ireg);
/* Clear the status except the interrupt status */
sd_ctrl_write32(host, CTL_STATUS, TMIO_MASK_IRQ);
}
static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,
int ireg, int status)
{
@ -657,18 +644,6 @@ static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,
return false;
}
irqreturn_t tmio_mmc_card_detect_irq(int irq, void *devid)
{
unsigned int ireg, status;
struct tmio_mmc_host *host = devid;
tmio_mmc_card_irq_status(host, &ireg, &status);
__tmio_mmc_card_detect_irq(host, ireg, status);
return IRQ_HANDLED;
}
EXPORT_SYMBOL(tmio_mmc_card_detect_irq);
static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host,
int ireg, int status)
{
@ -698,19 +673,7 @@ static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host,
return false;
}
irqreturn_t tmio_mmc_sdcard_irq(int irq, void *devid)
{
unsigned int ireg, status;
struct tmio_mmc_host *host = devid;
tmio_mmc_card_irq_status(host, &ireg, &status);
__tmio_mmc_sdcard_irq(host, ireg, status);
return IRQ_HANDLED;
}
EXPORT_SYMBOL(tmio_mmc_sdcard_irq);
irqreturn_t tmio_mmc_sdio_irq(int irq, void *devid)
static void tmio_mmc_sdio_irq(int irq, void *devid)
{
struct tmio_mmc_host *host = devid;
struct mmc_host *mmc = host->mmc;
@ -719,7 +682,7 @@ irqreturn_t tmio_mmc_sdio_irq(int irq, void *devid)
unsigned int sdio_status;
if (!(pdata->flags & TMIO_MMC_SDIO_IRQ))
return IRQ_HANDLED;
return;
status = sd_ctrl_read16(host, CTL_SDIO_STATUS);
ireg = status & TMIO_SDIO_MASK_ALL & ~host->sdcard_irq_mask;
@ -732,19 +695,22 @@ irqreturn_t tmio_mmc_sdio_irq(int irq, void *devid)
if (mmc->caps & MMC_CAP_SDIO_IRQ && ireg & TMIO_SDIO_STAT_IOIRQ)
mmc_signal_sdio_irq(mmc);
return IRQ_HANDLED;
}
EXPORT_SYMBOL(tmio_mmc_sdio_irq);
irqreturn_t tmio_mmc_irq(int irq, void *devid)
{
struct tmio_mmc_host *host = devid;
unsigned int ireg, status;
pr_debug("MMC IRQ begin\n");
status = sd_ctrl_read16_and_16_as_32(host, CTL_STATUS);
ireg = status & TMIO_MASK_IRQ & ~host->sdcard_irq_mask;
pr_debug_status(status);
pr_debug_status(ireg);
/* Clear the status except the interrupt status */
sd_ctrl_write32_as_16_and_16(host, CTL_STATUS, TMIO_MASK_IRQ);
tmio_mmc_card_irq_status(host, &ireg, &status);
if (__tmio_mmc_card_detect_irq(host, ireg, status))
return IRQ_HANDLED;
if (__tmio_mmc_sdcard_irq(host, ireg, status))
@ -812,8 +778,6 @@ static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
spin_unlock_irqrestore(&host->lock, flags);
pm_runtime_get_sync(mmc_dev(mmc));
if (mrq->data) {
ret = tmio_mmc_start_data(host, mrq->data);
if (ret)
@ -832,24 +796,14 @@ fail:
host->mrq = NULL;
mrq->cmd->error = ret;
mmc_request_done(mmc, mrq);
pm_runtime_mark_last_busy(mmc_dev(mmc));
pm_runtime_put_autosuspend(mmc_dev(mmc));
}
static int tmio_mmc_clk_update(struct tmio_mmc_host *host)
static int tmio_mmc_clk_enable(struct tmio_mmc_host *host)
{
struct mmc_host *mmc = host->mmc;
int ret;
if (!host->clk_enable)
return -ENOTSUPP;
ret = host->clk_enable(host->pdev, &mmc->f_max);
if (!ret)
mmc->f_min = mmc->f_max / 512;
return ret;
return host->clk_enable(host);
}
static void tmio_mmc_power_on(struct tmio_mmc_host *host, unsigned short vdd)
@ -925,8 +879,6 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
struct device *dev = &host->pdev->dev;
unsigned long flags;
pm_runtime_get_sync(mmc_dev(mmc));
mutex_lock(&host->ios_lock);
spin_lock_irqsave(&host->lock, flags);
@ -959,14 +911,12 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
tmio_mmc_clk_stop(host);
break;
case MMC_POWER_UP:
tmio_mmc_set_clock(host, ios->clock);
tmio_mmc_power_on(host, ios->vdd);
tmio_mmc_clk_start(host);
tmio_mmc_set_clock(host, ios->clock);
tmio_mmc_set_bus_width(host, ios->bus_width);
break;
case MMC_POWER_ON:
tmio_mmc_set_clock(host, ios->clock);
tmio_mmc_clk_start(host);
tmio_mmc_set_bus_width(host, ios->bus_width);
break;
}
@ -983,9 +933,6 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
host->clk_cache = ios->clock;
mutex_unlock(&host->ios_lock);
pm_runtime_mark_last_busy(mmc_dev(mmc));
pm_runtime_put_autosuspend(mmc_dev(mmc));
}
static int tmio_mmc_get_ro(struct mmc_host *mmc)
@ -996,11 +943,8 @@ static int tmio_mmc_get_ro(struct mmc_host *mmc)
if (ret >= 0)
return ret;
pm_runtime_get_sync(mmc_dev(mmc));
ret = !((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) ||
(sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT));
pm_runtime_mark_last_busy(mmc_dev(mmc));
pm_runtime_put_autosuspend(mmc_dev(mmc));
(sd_ctrl_read16_and_16_as_32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT));
return ret;
}
@ -1016,12 +960,20 @@ static int tmio_multi_io_quirk(struct mmc_card *card,
return blk_size;
}
static const struct mmc_host_ops tmio_mmc_ops = {
static int tmio_mmc_card_busy(struct mmc_host *mmc)
{
struct tmio_mmc_host *host = mmc_priv(mmc);
return !(sd_ctrl_read16_and_16_as_32(host, CTL_STATUS) & TMIO_STAT_DAT0);
}
static struct mmc_host_ops tmio_mmc_ops = {
.request = tmio_mmc_request,
.set_ios = tmio_mmc_set_ios,
.get_ro = tmio_mmc_get_ro,
.get_cd = mmc_gpio_get_cd,
.enable_sdio_irq = tmio_mmc_enable_sdio_irq,
.card_busy = tmio_mmc_card_busy,
.multi_io_quirk = tmio_multi_io_quirk,
};
@ -1120,7 +1072,9 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
goto host_free;
}
tmio_mmc_ops.start_signal_voltage_switch = _host->start_signal_voltage_switch;
mmc->ops = &tmio_mmc_ops;
mmc->caps |= MMC_CAP_4_BIT_DATA | pdata->capabilities;
mmc->caps2 |= pdata->capabilities2;
mmc->max_segs = 32;
@ -1135,7 +1089,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
mmc->caps & MMC_CAP_NONREMOVABLE ||
mmc->slot.cd_irq >= 0);
if (tmio_mmc_clk_update(_host) < 0) {
if (tmio_mmc_clk_enable(_host) < 0) {
mmc->f_max = pdata->hclk;
mmc->f_min = mmc->f_max / 512;
}
@ -1159,7 +1113,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
tmio_mmc_clk_stop(_host);
tmio_mmc_reset(_host);
_host->sdcard_irq_mask = sd_ctrl_read32(_host, CTL_IRQ_MASK);
_host->sdcard_irq_mask = sd_ctrl_read16_and_16_as_32(_host, CTL_IRQ_MASK);
tmio_mmc_disable_mmc_irqs(_host, TMIO_MASK_ALL);
/* Unmask the IRQs we want to know about */
@ -1251,7 +1205,7 @@ int tmio_mmc_host_runtime_suspend(struct device *dev)
tmio_mmc_clk_stop(host);
if (host->clk_disable)
host->clk_disable(host->pdev);
host->clk_disable(host);
return 0;
}
@ -1263,12 +1217,10 @@ int tmio_mmc_host_runtime_resume(struct device *dev)
struct tmio_mmc_host *host = mmc_priv(mmc);
tmio_mmc_reset(host);
tmio_mmc_clk_update(host);
tmio_mmc_clk_enable(host);
if (host->clk_cache) {
if (host->clk_cache)
tmio_mmc_set_clock(host, host->clk_cache);
tmio_mmc_clk_start(host);
}
tmio_mmc_enable_dma(host, true);

60
drivers/mmc/host/usdhi6rol0.c
View File

@ -22,6 +22,7 @@
#include <linux/mmc/sdio.h>
#include <linux/module.h>
#include <linux/pagemap.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/scatterlist.h>
#include <linux/string.h>
@ -198,6 +199,11 @@ struct usdhi6_host {
struct dma_chan *chan_rx;
struct dma_chan *chan_tx;
bool dma_active;
/* Pin control */
struct pinctrl *pinctrl;
struct pinctrl_state *pins_default;
struct pinctrl_state *pins_uhs;
};
/* I/O primitives */
@ -1147,12 +1153,45 @@ static void usdhi6_enable_sdio_irq(struct mmc_host *mmc, int enable)
}
}
static int usdhi6_set_pinstates(struct usdhi6_host *host, int voltage)
{
if (IS_ERR(host->pins_uhs))
return 0;
switch (voltage) {
case MMC_SIGNAL_VOLTAGE_180:
case MMC_SIGNAL_VOLTAGE_120:
return pinctrl_select_state(host->pinctrl,
host->pins_uhs);
default:
return pinctrl_select_state(host->pinctrl,
host->pins_default);
}
}
static int usdhi6_sig_volt_switch(struct mmc_host *mmc, struct mmc_ios *ios)
{
int ret;
ret = mmc_regulator_set_vqmmc(mmc, ios);
if (ret < 0)
return ret;
ret = usdhi6_set_pinstates(mmc_priv(mmc), ios->signal_voltage);
if (ret)
dev_warn_once(mmc_dev(mmc),
"Failed to set pinstate err=%d\n", ret);
return ret;
}
static struct mmc_host_ops usdhi6_ops = {
.request = usdhi6_request,
.set_ios = usdhi6_set_ios,
.get_cd = usdhi6_get_cd,
.get_ro = usdhi6_get_ro,
.enable_sdio_irq = usdhi6_enable_sdio_irq,
.start_signal_voltage_switch = usdhi6_sig_volt_switch,
};
/* State machine handlers */
@ -1730,6 +1769,25 @@ static int usdhi6_probe(struct platform_device *pdev)
host->wait = USDHI6_WAIT_FOR_REQUEST;
host->timeout = msecs_to_jiffies(4000);
host->pinctrl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR(host->pinctrl)) {
ret = PTR_ERR(host->pinctrl);
goto e_free_mmc;
}
host->pins_uhs = pinctrl_lookup_state(host->pinctrl, "state_uhs");
if (!IS_ERR(host->pins_uhs)) {
host->pins_default = pinctrl_lookup_state(host->pinctrl,
PINCTRL_STATE_DEFAULT);
if (IS_ERR(host->pins_default)) {
dev_err(dev,
"UHS pinctrl requires a default pin state.\n");
ret = PTR_ERR(host->pins_default);
goto e_free_mmc;
}
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
host->base = devm_ioremap_resource(dev, res);
if (IS_ERR(host->base)) {
@ -1785,7 +1843,7 @@ static int usdhi6_probe(struct platform_device *pdev)
mmc->ops = &usdhi6_ops;
mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED |
MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_DDR50 | MMC_CAP_SDIO_IRQ;
MMC_CAP_SDIO_IRQ;
/* Set .max_segs to some random number. Feel free to adjust. */
mmc->max_segs = 32;
mmc->max_blk_size = 512;

4
include/linux/mfd/tmio.h
View File

@ -66,8 +66,8 @@
*/
#define TMIO_MMC_SDIO_IRQ (1 << 2)
/* Some controllers don't need to wait 10ms for clock changes */
#define TMIO_MMC_FAST_CLK_CHG (1 << 3)
/* Some features are only available or tested on RCar Gen2 or later */
#define TMIO_MMC_MIN_RCAR2 (1 << 3)
/*
* Some controllers require waiting for the SD bus to become

12
include/linux/mmc/dw_mmc.h
View File

@ -36,7 +36,6 @@ enum {
EVENT_XFER_COMPLETE,
EVENT_DATA_COMPLETE,
EVENT_DATA_ERROR,
EVENT_XFER_ERROR
};
struct mmc_data;
@ -55,6 +54,7 @@ struct dw_mci_dma_slave {
/**
* struct dw_mci - MMC controller state shared between all slots
* @lock: Spinlock protecting the queue and associated data.
* @irq_lock: Spinlock protecting the INTMASK setting.
* @regs: Pointer to MMIO registers.
* @fifo_reg: Pointer to MMIO registers for data FIFO
* @sg: Scatterlist entry currently being processed by PIO code, if any.
@ -65,6 +65,9 @@ struct dw_mci_dma_slave {
* @cmd: The command currently being sent to the card, or NULL.
* @data: The data currently being transferred, or NULL if no data
* transfer is in progress.
* @stop_abort: The command currently prepared for stoping transfer.
* @prev_blksz: The former transfer blksz record.
* @timing: Record of current ios timing.
* @use_dma: Whether DMA channel is initialized or not.
* @using_dma: Whether DMA is in use for the current transfer.
* @dma_64bit_address: Whether DMA supports 64-bit address mode or not.
@ -72,7 +75,10 @@ struct dw_mci_dma_slave {
* @sg_cpu: Virtual address of DMA buffer.
* @dma_ops: Pointer to platform-specific DMA callbacks.
* @cmd_status: Snapshot of SR taken upon completion of the current
* @ring_size: Buffer size for idma descriptors.
* command. Only valid when EVENT_CMD_COMPLETE is pending.
* @dms: structure of slave-dma private data.
* @phy_regs: physical address of controller's register map
* @data_status: Snapshot of SR taken upon completion of the current
* data transfer. Only valid when EVENT_DATA_COMPLETE or
* EVENT_DATA_ERROR is pending.
@ -80,7 +86,6 @@ struct dw_mci_dma_slave {
* to be sent.
* @dir_status: Direction of current transfer.
* @tasklet: Tasklet running the request state machine.
* @card_tasklet: Tasklet handling card detect.
* @pending_events: Bitmask of events flagged by the interrupt handler
* to be processed by the tasklet.
* @completed_events: Bitmask of events which the state machine has
@ -91,6 +96,7 @@ struct dw_mci_dma_slave {
* rate and timeout calculations.
* @current_speed: Configured rate of the controller.
* @num_slots: Number of slots available.
* @fifoth_val: The value of FIFOTH register.
* @verid: Denote Version ID.
* @dev: Device associated with the MMC controller.
* @pdata: Platform data associated with the MMC controller.
@ -107,9 +113,11 @@ struct dw_mci_dma_slave {
* @push_data: Pointer to FIFO push function.
* @pull_data: Pointer to FIFO pull function.
* @quirks: Set of quirks that apply to specific versions of the IP.
* @vqmmc_enabled: Status of vqmmc, should be true or false.
* @irq_flags: The flags to be passed to request_irq.
* @irq: The irq value to be passed to request_irq.
* @sdio_id0: Number of slot0 in the SDIO interrupt registers.
* @cmd11_timer: Timer for SD3.0 voltage switch over scheme.
* @dto_timer: Timer for broken data transfer over scheme.
*
* Locking

31
include/linux/mmc/host.h
View File

@ -93,28 +93,39 @@ struct mmc_host_ops {
void (*pre_req)(struct mmc_host *host, struct mmc_request *req,
bool is_first_req);
void (*request)(struct mmc_host *host, struct mmc_request *req);
/*
* Avoid calling the next three functions too often or in a "fast
* path", since underlaying controller might implement them in an
* expensive and/or slow way. Also note that these functions might
* sleep, so don't call them in the atomic contexts!
*/
/*
* Notes to the set_ios callback:
* ios->clock might be 0. For some controllers, setting 0Hz
* as any other frequency works. However, some controllers
* explicitly need to disable the clock. Otherwise e.g. voltage
* switching might fail because the SDCLK is not really quiet.
*/
void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
/*
* Avoid calling these three functions too often or in a "fast path",
* since underlaying controller might implement them in an expensive
* and/or slow way.
*
* Also note that these functions might sleep, so don't call them
* in the atomic contexts!
*
* Return values for the get_ro callback should be:
* 0 for a read/write card
* 1 for a read-only card
* -ENOSYS when not supported (equal to NULL callback)
* or a negative errno value when something bad happened
*
*/
int (*get_ro)(struct mmc_host *host);
/*
* Return values for the get_cd callback should be:
* 0 for a absent card
* 1 for a present card
* -ENOSYS when not supported (equal to NULL callback)
* or a negative errno value when something bad happened
*/
void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
int (*get_ro)(struct mmc_host *host);
int (*get_cd)(struct mmc_host *host);
void (*enable_sdio_irq)(struct mmc_host *host, int enable);

10
include/linux/mmc/sh_mobile_sdhi.h
View File

@ -1,10 +0,0 @@
#ifndef LINUX_MMC_SH_MOBILE_SDHI_H
#define LINUX_MMC_SH_MOBILE_SDHI_H
#include <linux/types.h>
#define SH_MOBILE_SDHI_IRQ_CARD_DETECT "card_detect"
#define SH_MOBILE_SDHI_IRQ_SDCARD "sdcard"
#define SH_MOBILE_SDHI_IRQ_SDIO "sdio"
#endif /* LINUX_MMC_SH_MOBILE_SDHI_H */

71
include/linux/mmc/tmio.h
View File

@ -1,71 +0,0 @@
/*
* include/linux/mmc/tmio.h
*
* Copyright (C) 2016 Sang Engineering, Wolfram Sang
* Copyright (C) 2015-16 Renesas Electronics Corporation
* Copyright (C) 2007 Ian Molton
* Copyright (C) 2004 Ian Molton
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Driver for the MMC / SD / SDIO cell found in:
*
* TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
*/
#ifndef LINUX_MMC_TMIO_H
#define LINUX_MMC_TMIO_H
#define CTL_SD_CMD 0x00
#define CTL_ARG_REG 0x04
#define CTL_STOP_INTERNAL_ACTION 0x08
#define CTL_XFER_BLK_COUNT 0xa
#define CTL_RESPONSE 0x0c
#define CTL_STATUS 0x1c
#define CTL_STATUS2 0x1e
#define CTL_IRQ_MASK 0x20
#define CTL_SD_CARD_CLK_CTL 0x24
#define CTL_SD_XFER_LEN 0x26
#define CTL_SD_MEM_CARD_OPT 0x28
#define CTL_SD_ERROR_DETAIL_STATUS 0x2c
#define CTL_SD_DATA_PORT 0x30
#define CTL_TRANSACTION_CTL 0x34
#define CTL_SDIO_STATUS 0x36
#define CTL_SDIO_IRQ_MASK 0x38
#define CTL_DMA_ENABLE 0xd8
#define CTL_RESET_SD 0xe0
#define CTL_VERSION 0xe2
#define CTL_SDIO_REGS 0x100
#define CTL_CLK_AND_WAIT_CTL 0x138
#define CTL_RESET_SDIO 0x1e0
/* Definitions for values the CTRL_STATUS register can take. */
#define TMIO_STAT_CMDRESPEND 0x00000001
#define TMIO_STAT_DATAEND 0x00000004
#define TMIO_STAT_CARD_REMOVE 0x00000008
#define TMIO_STAT_CARD_INSERT 0x00000010
#define TMIO_STAT_SIGSTATE 0x00000020
#define TMIO_STAT_WRPROTECT 0x00000080
#define TMIO_STAT_CARD_REMOVE_A 0x00000100
#define TMIO_STAT_CARD_INSERT_A 0x00000200
#define TMIO_STAT_SIGSTATE_A 0x00000400
#define TMIO_STAT_CMD_IDX_ERR 0x00010000
#define TMIO_STAT_CRCFAIL 0x00020000
#define TMIO_STAT_STOPBIT_ERR 0x00040000
#define TMIO_STAT_DATATIMEOUT 0x00080000
#define TMIO_STAT_RXOVERFLOW 0x00100000
#define TMIO_STAT_TXUNDERRUN 0x00200000
#define TMIO_STAT_CMDTIMEOUT 0x00400000
#define TMIO_STAT_RXRDY 0x01000000
#define TMIO_STAT_TXRQ 0x02000000
#define TMIO_STAT_ILL_FUNC 0x20000000
#define TMIO_STAT_CMD_BUSY 0x40000000
#define TMIO_STAT_ILL_ACCESS 0x80000000
#define CLK_CTL_DIV_MASK 0xff
#define CLK_CTL_SCLKEN BIT(8)
#define TMIO_BBS 512 /* Boot block size */
#endif /* LINUX_MMC_TMIO_H */

182
include/trace/events/mmc.h Normal file
View File

@ -0,0 +1,182 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM mmc
#if !defined(_TRACE_MMC_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_MMC_H
#include <linux/blkdev.h>
#include <linux/mmc/core.h>
#include <linux/mmc/host.h>
#include <linux/tracepoint.h>
TRACE_EVENT(mmc_request_start,
TP_PROTO(struct mmc_host *host, struct mmc_request *mrq),
TP_ARGS(host, mrq),
TP_STRUCT__entry(
__field(u32, cmd_opcode)
__field(u32, cmd_arg)
__field(unsigned int, cmd_flags)
__field(unsigned int, cmd_retries)
__field(u32, stop_opcode)
__field(u32, stop_arg)
__field(unsigned int, stop_flags)
__field(unsigned int, stop_retries)
__field(u32, sbc_opcode)
__field(u32, sbc_arg)
__field(unsigned int, sbc_flags)
__field(unsigned int, sbc_retries)
__field(unsigned int, blocks)
__field(unsigned int, blksz)
__field(unsigned int, data_flags)
__field(unsigned int, can_retune)
__field(unsigned int, doing_retune)
__field(unsigned int, retune_now)
__field(int, need_retune)
__field(int, hold_retune)
__field(unsigned int, retune_period)
__field(struct mmc_request *, mrq)
__string(name, mmc_hostname(host))
),
TP_fast_assign(
__entry->cmd_opcode = mrq->cmd->opcode;
__entry->cmd_arg = mrq->cmd->arg;
__entry->cmd_flags = mrq->cmd->flags;
__entry->cmd_retries = mrq->cmd->retries;
__entry->stop_opcode = mrq->stop ? mrq->stop->opcode : 0;
__entry->stop_arg = mrq->stop ? mrq->stop->arg : 0;
__entry->stop_flags = mrq->stop ? mrq->stop->flags : 0;
__entry->stop_retries = mrq->stop ? mrq->stop->retries : 0;
__entry->sbc_opcode = mrq->sbc ? mrq->sbc->opcode : 0;
__entry->sbc_arg = mrq->sbc ? mrq->sbc->arg : 0;
__entry->sbc_flags = mrq->sbc ? mrq->sbc->flags : 0;
__entry->sbc_retries = mrq->sbc ? mrq->sbc->retries : 0;
__entry->blksz = mrq->data ? mrq->data->blksz : 0;
__entry->blocks = mrq->data ? mrq->data->blocks : 0;
__entry->data_flags = mrq->data ? mrq->data->flags : 0;
__entry->can_retune = host->can_retune;
__entry->doing_retune = host->doing_retune;
__entry->retune_now = host->retune_now;
__entry->need_retune = host->need_retune;
__entry->hold_retune = host->hold_retune;
__entry->retune_period = host->retune_period;
__assign_str(name, mmc_hostname(host));
__entry->mrq = mrq;
),
TP_printk("%s: start struct mmc_request[%p]: "
"cmd_opcode=%u cmd_arg=0x%x cmd_flags=0x%x cmd_retries=%u "
"stop_opcode=%u stop_arg=0x%x stop_flags=0x%x stop_retries=%u "
"sbc_opcode=%u sbc_arg=0x%x sbc_flags=0x%x sbc_retires=%u "
"blocks=%u block_size=%u data_flags=0x%x "
"can_retune=%u doing_retune=%u retune_now=%u "
"need_retune=%d hold_retune=%d retune_period=%u",
__get_str(name), __entry->mrq,
__entry->cmd_opcode, __entry->cmd_arg,
__entry->cmd_flags, __entry->cmd_retries,
__entry->stop_opcode, __entry->stop_arg,
__entry->stop_flags, __entry->stop_retries,
__entry->sbc_opcode, __entry->sbc_arg,
__entry->sbc_flags, __entry->sbc_retries,
__entry->blocks, __entry->blksz, __entry->data_flags,
__entry->can_retune, __entry->doing_retune,
__entry->retune_now, __entry->need_retune,
__entry->hold_retune, __entry->retune_period)
);
TRACE_EVENT(mmc_request_done,
TP_PROTO(struct mmc_host *host, struct mmc_request *mrq),
TP_ARGS(host, mrq),
TP_STRUCT__entry(
__field(u32, cmd_opcode)
__field(int, cmd_err)
__array(u32, cmd_resp, 4)
__field(unsigned int, cmd_retries)
__field(u32, stop_opcode)
__field(int, stop_err)
__array(u32, stop_resp, 4)
__field(unsigned int, stop_retries)
__field(u32, sbc_opcode)
__field(int, sbc_err)
__array(u32, sbc_resp, 4)
__field(unsigned int, sbc_retries)
__field(unsigned int, bytes_xfered)
__field(int, data_err)
__field(unsigned int, can_retune)
__field(unsigned int, doing_retune)
__field(unsigned int, retune_now)
__field(int, need_retune)
__field(int, hold_retune)
__field(unsigned int, retune_period)
__field(struct mmc_request *, mrq)
__string(name, mmc_hostname(host))
),
TP_fast_assign(
__entry->cmd_opcode = mrq->cmd->opcode;
__entry->cmd_err = mrq->cmd->error;
memcpy(__entry->cmd_resp, mrq->cmd->resp, 4);
__entry->cmd_retries = mrq->cmd->retries;
__entry->stop_opcode = mrq->stop ? mrq->stop->opcode : 0;
__entry->stop_err = mrq->stop ? mrq->stop->error : 0;
__entry->stop_resp[0] = mrq->stop ? mrq->stop->resp[0] : 0;
__entry->stop_resp[1] = mrq->stop ? mrq->stop->resp[1] : 0;
__entry->stop_resp[2] = mrq->stop ? mrq->stop->resp[2] : 0;
__entry->stop_resp[3] = mrq->stop ? mrq->stop->resp[3] : 0;
__entry->stop_retries = mrq->stop ? mrq->stop->retries : 0;
__entry->sbc_opcode = mrq->sbc ? mrq->sbc->opcode : 0;
__entry->sbc_err = mrq->sbc ? mrq->sbc->error : 0;
__entry->sbc_resp[0] = mrq->sbc ? mrq->sbc->resp[0] : 0;
__entry->sbc_resp[1] = mrq->sbc ? mrq->sbc->resp[1] : 0;
__entry->sbc_resp[2] = mrq->sbc ? mrq->sbc->resp[2] : 0;
__entry->sbc_resp[3] = mrq->sbc ? mrq->sbc->resp[3] : 0;
__entry->sbc_retries = mrq->sbc ? mrq->sbc->retries : 0;
__entry->bytes_xfered = mrq->data ? mrq->data->bytes_xfered : 0;
__entry->data_err = mrq->data ? mrq->data->error : 0;
__entry->can_retune = host->can_retune;
__entry->doing_retune = host->doing_retune;
__entry->retune_now = host->retune_now;
__entry->need_retune = host->need_retune;
__entry->hold_retune = host->hold_retune;
__entry->retune_period = host->retune_period;
__assign_str(name, mmc_hostname(host));
__entry->mrq = mrq;
),
TP_printk("%s: end struct mmc_request[%p]: "
"cmd_opcode=%u cmd_err=%d cmd_resp=0x%x 0x%x 0x%x 0x%x "
"cmd_retries=%u stop_opcode=%u stop_err=%d "
"stop_resp=0x%x 0x%x 0x%x 0x%x stop_retries=%u "
"sbc_opcode=%u sbc_err=%d sbc_resp=0x%x 0x%x 0x%x 0x%x "
"sbc_retries=%u bytes_xfered=%u data_err=%d "
"can_retune=%u doing_retune=%u retune_now=%u need_retune=%d "
"hold_retune=%d retune_period=%u",
__get_str(name), __entry->mrq,
__entry->cmd_opcode, __entry->cmd_err,
__entry->cmd_resp[0], __entry->cmd_resp[1],
__entry->cmd_resp[2], __entry->cmd_resp[3],
__entry->cmd_retries,
__entry->stop_opcode, __entry->stop_err,
__entry->stop_resp[0], __entry->stop_resp[1],
__entry->stop_resp[2], __entry->stop_resp[3],
__entry->stop_retries,
__entry->sbc_opcode, __entry->sbc_err,
__entry->sbc_resp[0], __entry->sbc_resp[1],
__entry->sbc_resp[2], __entry->sbc_resp[3],
__entry->sbc_retries,
__entry->bytes_xfered, __entry->data_err,
__entry->can_retune, __entry->doing_retune,
__entry->retune_now, __entry->need_retune,
__entry->hold_retune, __entry->retune_period)
);
#endif /* _TRACE_MMC_H */
/* This part must be outside protection */
#include <trace/define_trace.h>