1707 Commits

Author SHA1 Message Date
Murali Karicheri
045016902b soc: ti: qmss: make acc queue support optional in the driver
acc channels are available only if accumulator PDSP is loaded and
running in the SoC. As this requires firmware and user may not have
firmware in the file system, make the accumulator queue support
available in qmss driver optional. To use accumulator queus user needs
to add firmware to the file system and boot up kernel.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-10-13 13:49:04 -07:00
Murali Karicheri
96ee19becc soc: ti: add firmware file name as part of the driver
Currently firmware file name is included in the DTS. This is not scalable
as user has to change the DTS if they need upgrade to a new firmware.
Instead, add the firmware file name in the driver itself. As long as there
is no API change, new firmware upgrade is easy and require no driver
change. User is expected to copy the firmware image to the file system
and add a sym link to the new firmware for doing an upgrade. Driver add
a array of firmware file names to search for the available firmware blobs.
This scheme also prepare the driver for future changes to API if ever
happens. In such case it is assumed that driver needs to change to
accommodate the new firmware and new firmware file name will get added to
the array.

Also update the DT document to remove the firmware attribute and add
description about firmware in the driver documentation.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-10-13 13:49:04 -07:00
Ulf Hansson
2376692416 soc: dove: Let genpd deal with disabling of unused PM domains
Genpd tries from a late_initcall to disable unused PM domains, which makes
it unnecessary to also manage this from any earlier phase when for example
initializing a genpd.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-10-12 23:27:01 +02:00
Thierry Reding
0cc598915f soc: rockchip: Restrict to ARCH_ROCKCHIP
By definition this directory contains drivers that are specific to the
Rockchip architecture. All Kconfig options should therefore depend on
ARCH_ROCKCHIP to avoid exposing these symbols on other architectures.
For example, this options currently shows up as new when doing an
incremental build on PowerPC.

Signed-off-by: Thierry Reding <treding@nvidia.com>

[add COMPILE_TEST alternative condition]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2015-10-11 11:58:08 +02:00
Florian Fainelli
9a764234ee soc: brcmstb: Add Bus Interface Unit control setup
Broadcom STB SoCs (brcmstb) require an early setup of their Bus
Interface Unit control register, this needs to happen before SMP is
brought up because it affects how the CPU complex will be interfaced to
the memory controller.

Add support code which properly initializes the BIU registers based on
whether "brcm,write-pairing" is present in Device Tree, and take care of
saving and restoring credit register settings during system-wide
suspend/resume operations.

Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-10-09 13:42:16 -07:00
Arnd Bergmann
273395f0c2 Add the power-domain base-driver which currently contains
support for the rk3288 powerdomain layout but can be easily
 extended for the socs (including arm64) later on.
 A big thanks to Ceasar Wang for pulling through on this
 during 18 revisions.
 Also included is a fix to the pm-clock handling in the generic
 powerdomains to adapt it to the per-user clock handling we now
 do, Acked by Rafael Wysocki.
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Merge tag 'v4.4-rockchip-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers

Merge "Rockchip power-domain drivers for 4.4" from Heiko Stuebner:

Add the power-domain base-driver which currently contains
support for the rk3288 powerdomain layout but can be easily
extended for the socs (including arm64) later on.
A big thanks to Ceasar Wang for pulling through on this
during 18 revisions.
Also included is a fix to the pm-clock handling in the generic
powerdomains to adapt it to the per-user clock handling we now
do, Acked by Rafael Wysocki.

* tag 'v4.4-rockchip-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  soc: rockchip: power-domain: Add power domain driver
  dt-bindings: add document of Rockchip power domains
  PM / clk: Do not __clk_get passed in clock-references
  dt-bindings: add power-domain header for RK3288 SoCs
2015-10-09 17:08:28 +02:00
Murali Karicheri
72affdecdd soc: ti: reset irq affinity before freeing irq
When using accumulator queue for rx side for network driver, following
warning is seen when doing a reboot command from Linux console. This
is because, affinity value is not reset before calling free_irq(). This
patch fixes this.

Deconfiguring network interfaces...
 ------------[ cut here ]-----------
 WARNING: CPU: 0 PID: 2081 at kernel/irq/manage.c:1370
__free_irq+0x208/0x214
 Modules linked in:
 CPU: 0 PID: 2081 Comm: ifconfig Not tainted 4.1.5-00908-g1049e206-dirty #1
 Hardware name: Keystone
 Backtrace:
 [<c0012b98>] (dump_backtrace) from [<c0012dbc>] (show_stack+0x18/0x1c)
 r7:c005d0a8 r6:c06e2184 r5:c06e2184 r4:00000000
 [<c0012da4>] (show_stack) from [<c04e7168>] (dump_stack+0x8c/0xcc)
 [<c04e70dc>] (dump_stack) from [<c0025944>] (warn_slowpath_common+0x88/0xb8)
 r7:c005d0a8 r6:0000055a r5:00000009 r4:0000000
 [<c00258bc>] (warn_slowpath_common) from [<c0025a18>] (warn_slowpath_null+0x
24/0x2c)
 r8:0000006c r7:ee513f60 r6:ee513f00 r5:ee611010 r4:cc873a00
 (warn_slowpath_null) from [<c005d0a8>] (__free_irq+0x208/0x214)
 [<c005cea0>] (__free_irq) from [<c005d158>] (free_irq+0x54/0xac)
 r10:00000002 r9:00000000 r8:00000000 r7:ee611010
r6:0000006c r5:00000000
  r4:ee513f00 r3:00000000
  [<c005d104>] (free_irq) from [<c02a81b0>] (knav_range_setup_acc_irq+0xb0/0x1
28)
  r7:00000001 r6:0000006c r5:ee611010 r4:00000001
  [<c02a8100>] (knav_range_setup_acc_irq) from [<c02a8248>] (knav_acc_close_qu
eue+0x20/0x24)
  r8:edd1a4c8 r7:00001000 r6:eed89980 r5:ee616650 r4:edf9d990
  [<c02a8228>] (knav_acc_close_queue) from [<c02a6160>] (knav_queue_close+0xb4
/0xb8)
  [<c02a60ac>] (knav_queue_close) from [<c0336270>] (netcp_free_navigator_reso
urces+0x1d4/0x2c0)
 r5:edd1a480 r4:00000400
 [<c033609c>] (netcp_free_navigator_resources) from
 [<c033657c>] (netcp_ndo_stop+0x220/0x230)
 r10:00008914 r9:edf34400 r8:00000000 r7:edd1a5d8 r6:edd1a480 r5:00000400
 r4:edd1a000
 [<c033635c>] (netcp_ndo_stop) from [<c03d9c80> (__dev_close_many+0x90/0xd8)
 r7:00001003 r6:00001042 r5:edb0de20 r4:edd1a000
 [<c03d9bf0>] (__dev_close_many) from [<c03d9df4>] (__dev_close+0x30/0x48)
  r5:00000001 r4:edd1a000
 [<c03d9dc4>] (__dev_close) from [<c03e175c>] (__dev_change_flags+0x9c/0x14c)
 [<c03e16c0>] (__dev_change_flags) from [<c03e182c>] (dev_change_flags+0x20/0

  r9:edf34400 r8:00000000 r7:00000000 r6:00001003 r5:edd1a138 r4:edd1a000
 [<c03e180c>] (dev_change_flags) from [<c0446f94>] (devinet_ioctl+0x680/0x754

  r9:edf34400 r8:bef6af3c r7:00000000 r6:bef6ac64 r5:edf3440c r4:00000000
 [<c0446914>] (devinet_ioctl) from [<c0448760>] (inet_ioctl+0x1a8/0x1d0)
  r10:00000000 r9:edb0c000 r8:bef6ac64 r7:00000003 r6:bef6ac64 r5:bef6ac64
  r4:00008914
 [<c04485b8>] (inet_ioctl) from [<c03c72fc>] (sock_ioctl+0x1d0/0x2a8)
 [<c03c712c>] (sock_ioctl) from [<c00eb608>] (do_vfs_ioctl+0x414/0x604)
  r7:00000003 r6:ed8b60c0 r5:bef6ac64 r4:ccc88f20
 [<c00eb1f4>] (do_vfs_ioctl) from [<c00eb834>] (SyS_ioctl+0x3c/0x64)
  r9:edb0c000 r8:bef6ac64 r7:00008914 r6:ed8b60c0 r5:00000003 r4:ed8b60c0
 [<c00eb7f8>] (SyS_ioctl) from [<c000f780>] (ret_fast_syscall+0x0/0x3c)
  r9:edb0c000 r8:c000f924 r7:00000036 r6:0007e77c r5:bef6ac64 r4:0007e7d0
 ---[ end trace f565594c905af0b4 ]---

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-10-08 21:29:11 +02:00
Caesar Wang
7c696693a4 soc: rockchip: power-domain: Add power domain driver
This driver is found on RK3288 SoCs.

In order to meet high performance and low power requirements, a power
management unit is designed or saving power when RK3288 in low power
mode.
The RK3288 PMU is dedicated for managing the power of the whole chip.

PMU can work in the Low Power Mode by setting bit[0] of PMU_PWRMODE_CON
register. After setting the register, PMU would enter the Low Power mode.
In the low power mode, pmu will auto power on/off the specified power
domain, send idle req to specified power domain, shut down/up pll and
so on. All of above are configurable by setting corresponding registers.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>

[replace dsb() with dsb(sy) for arm64 buildability; sy is the default,
so no functional change; adapt to per-user clocks in genpd]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2015-10-06 09:53:28 +02:00
Eddie Huang
47e90154fa soc: mediatek: add scpsys support active_wakeup
Register gpd_dev_ops.active_wakeup function to support keep power
during suspend state. And add flag to each power domain to
decide whether keep power during suspend or not.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-09-27 15:18:33 +02:00
Henry Chen
bbe379fc7c soc: mediatek: Move the initial setting of pmic wrap interrupt before requesting irq.
The watchdog may not be initialized by the bootloader, even if the rest
of the pwrap is. Move the watchdog initialization out of pwrap_init() to
make sure the watchdog is always initialized and not only when the pwrap
is uninitialized.

Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-09-27 13:56:08 +02:00
Thomas Gleixner
bd0b9ac405 genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-16 15:47:51 +02:00
Brian Norris
d52fad2620 soc: add stubs for brcmstb SoC's
Used on BCM7xxx Set-Top Box chips (e.g., BCM7445).

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-09-14 15:44:18 -07:00
Thomas Gleixner
b838c950b3 soc: dove: Prepare irq handler for irq argument removal
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
    
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
    
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-09-14 10:30:05 +02:00
Thomas Gleixner
5230347ea7 soc: dove: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
Search and replace done with coccinelle

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-14 10:30:05 +02:00
Linus Torvalds
d71fc239b6 ARM: SoC: late fixes and dependencies
This is a collection of a few late fixes and other misc. stuff that
 had dependencies on things being merged from other trees.
 
 The bulk of the changes are for samsung/exynos SoCs for some changes
 that needed a few minor reworks so ended up a bit late.  The others
 are mainly for qcom SoCs: a couple fixes and some DTS updates.
 
 There's one conflict with drivers/cpufreq/exynos-cpufreq.c because
 it's now been completely removed, but there were some fixes that hit
 mainline in the meantime.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull late ARM SoC updates from Kevin Hilman:
 "This is a collection of a few late fixes and other misc stuff that had
  dependencies on things being merged from other trees.

  The bulk of the changes are for samsung/exynos SoCs for some changes
  that needed a few minor reworks so ended up a bit late.  The others
  are mainly for qcom SoCs: a couple fixes and some DTS updates"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
  ARM: multi_v7_defconfig: Enable PBIAS regulator
  soc: qcom: smd: Correct fBLOCKREADINTR handling
  soc: qcom: smd: Use correct remote processor ID
  soc: qcom: smem: Fix errant private access
  ARM: dts: qcom: msm8974-sony-xperia-honami: Use stdout-path
  ARM: dts: qcom: msm8960-cdp: Use stdout-path
  ARM: dts: qcom: msm8660-surf: Use stdout-path
  ARM: dts: qcom: ipq8064-ap148: Use stdout-path
  ARM: dts: qcom: apq8084-mtp: Use stdout-path
  ARM: dts: qcom: apq8084-ifc6540: Use stdout-path
  ARM: dts: qcom: apq8074-dragonboard: Use stdout-path
  ARM: dts: qcom: apq8064-ifc6410: Use stdout-path
  ARM: dts: qcom: apq8064-cm-qs600: Use stdout-path
  ARM: dts: qcom: Label serial nodes for aliasing and stdout-path
  reset: ath79: Fix missing spin_lock_init
  reset: Add (devm_)reset_control_get stub functions
  ARM: EXYNOS: switch to using generic cpufreq driver for exynos4x12
  cpufreq: exynos: Remove unselectable rule for arm-exynos-cpufreq.o
  ARM: dts: add iommu property to JPEG device for exynos4
  ARM: dts: enable SPI1 for exynos4412-odroidu3
  ...
2015-09-10 17:59:04 -07:00
Bjorn Andersson
208487a8f6 soc: qcom: smd: Correct fBLOCKREADINTR handling
fBLOCKREADINTR is masking the notification from the remote and should
hence be cleared while we're waiting the tx fifo to drain. Also change
the reset state to mask the notification, as send is the only use case
where we're interested in it.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-09-09 15:58:04 -05:00
Andy Gross
93dbed9121 soc: qcom: smd: Use correct remote processor ID
This patch fixes SMEM addressing issues when remote processors need to use
secure SMEM partitions.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
2015-09-09 15:57:09 -05:00
Andy Gross
18912806bb soc: qcom: smem: Fix errant private access
This patch corrects private partition item access.  Instead of falling back to
global for instances where we have an actual host and remote partition existing,
return the results of the private lookup.

Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-09-09 15:56:52 -05:00
Linus Torvalds
102178108e ARM: SoC driver updates for v4.3
Some releases this branch is nearly empty, others we have more stuff. It
 tends to gather drivers that need SoC modification or dependencies such
 that they have to (also) go in through our tree.
 
 For this release, we have merged in part of the reset controller tree
 (with handshake that the parts we have merged in will remain stable),
 as well as dependencies on a few clock branches.
 
 In general, new items here are:
 
 - Qualcomm driver for SMM/SMD, which is how they communicate with the
   coprocessors on (some) of their platforms
 - Memory controller work for ARM's PL172 memory controller
 - Reset drivers for various platforms
 - PMU power domain support for Marvell platforms
 - Tegra support for T132/T210 SoCs: PMC, fuse, memory controller per-SoC support
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Some releases this branch is nearly empty, others we have more stuff.
  It tends to gather drivers that need SoC modification or dependencies
  such that they have to (also) go in through our tree.

  For this release, we have merged in part of the reset controller tree
  (with handshake that the parts we have merged in will remain stable),
  as well as dependencies on a few clock branches.

  In general, new items here are:

   - Qualcomm driver for SMM/SMD, which is how they communicate with the
     coprocessors on (some) of their platforms

   - memory controller work for ARM's PL172 memory controller

   - reset drivers for various platforms

   - PMU power domain support for Marvell platforms

   - Tegra support for T132/T210 SoCs: PMC, fuse, memory controller
     per-SoC support"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (49 commits)
  ARM: tegra: cpuidle: implement cpuidle_state.enter_freeze()
  ARM: tegra: Disable cpuidle if PSCI is available
  soc/tegra: pmc: Use existing pclk reference
  soc/tegra: pmc: Remove unnecessary return statement
  soc: tegra: Remove redundant $(CONFIG_ARCH_TEGRA) in Makefile
  memory: tegra: Add Tegra210 support
  memory: tegra: Add support for a variable-size client ID bitfield
  clk: shmobile: rz: Add CPG/MSTP Clock Domain support
  clk: shmobile: rcar-gen2: Add CPG/MSTP Clock Domain support
  clk: shmobile: r8a7779: Add CPG/MSTP Clock Domain support
  clk: shmobile: r8a7778: Add CPG/MSTP Clock Domain support
  clk: shmobile: Add CPG/MSTP Clock Domain support
  ARM: dove: create a proper PMU driver for power domains, PMU IRQs and resets
  reset: reset-zynq: Adding support for Xilinx Zynq reset controller.
  docs: dts: Added documentation for Xilinx Zynq Reset Controller bindings.
  MIPS: ath79: Add the reset controller to the AR9132 dtsi
  reset: Add a driver for the reset controller on the AR71XX/AR9XXX
  devicetree: Add bindings for the ATH79 reset controller
  reset: socfpga: Update reset-socfpga to read the altr,modrst-offset property
  doc: dt: add documentation for lpc1850-rgu reset driver
  ...
2015-09-01 13:00:04 -07:00
Olof Johansson
5378e4665f ARM: tegra: Core SoC changes for v4.3-rc1
This contains a bit more of Tegra210 support, which is shaping up pretty
 nicely. Other than that there are a couple of cleanup patches here, too.
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Merge tag 'tegra-for-4.3-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

ARM: tegra: Core SoC changes for v4.3-rc1

This contains a bit more of Tegra210 support, which is shaping up pretty
nicely. Other than that there are a couple of cleanup patches here, too.

* tag 'tegra-for-4.3-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: tegra: cpuidle: implement cpuidle_state.enter_freeze()
  ARM: tegra: Disable cpuidle if PSCI is available
  soc/tegra: pmc: Use existing pclk reference
  soc/tegra: pmc: Remove unnecessary return statement
  soc: tegra: Remove redundant $(CONFIG_ARCH_TEGRA) in Makefile
  soc/tegra: fuse: Add spare bit offset for Tegra210
  soc/tegra: fuse: Add spare bit offset for Tegra124
  soc/tegra: fuse: Add spare bit offset for Tegra114
  soc/tegra: fuse: Rename core_* to soc_*
  soc/tegra: fuse: Add Tegra210 support
  soc/tegra: fuse: Unify Tegra20 and Tegra30 drivers
  soc/tegra: fuse: Restrict legacy code to 32-bit ARM
  soc/tegra: pmc: Add Tegra210 support
  soc/tegra: pmc: Restrict legacy code to 32-bit ARM
  soc/tegra: pmc: Avoid usage of uninitialized variable
  soc/tegra: Add Tegra210 support
  soc/tegra: Add Tegra132 support

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-20 18:43:15 -07:00
Thierry Reding
592431b036 soc/tegra: pmc: Use existing pclk reference
The driver requests the pclk clock at probe time already and stores its
reference to it in struct tegra_pmc, so there is no need to look it up
everytime it is needed. Use the existing reference instead.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13 16:49:58 +02:00
Thierry Reding
4a4466a6a4 soc/tegra: pmc: Remove unnecessary return statement
Functions returning no value don't need an explicit return statement.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13 16:49:43 +02:00
Masahiro Yamada
7c9fd23ff1 soc: tegra: Remove redundant $(CONFIG_ARCH_TEGRA) in Makefile
Kbuild descends into drivers/soc/tegra/ only when CONFIG_ARCH_TEGRA
is enabled. (see drivers/soc/Makefile)

$(CONFIG_ARCH_TEGRA) in drivers/soc/tegra/Makefile always evaluates
to 'y'.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13 16:17:40 +02:00
Olof Johansson
0bf413558e Qualcomm ARM Based SoC Updates for 4.3
* Add SMEM driver
 * Add SMD driver
 * Add RPM over SMD driver
 * Select QCOM_SCM by default
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Merge tag 'qcom-soc-for-4.3' of git://codeaurora.org/quic/kernel/agross-msm into next/drivers

Qualcomm ARM Based SoC Updates for 4.3

* Add SMEM driver
* Add SMD driver
* Add RPM over SMD driver
* Select QCOM_SCM by default

* tag 'qcom-soc-for-4.3' of git://codeaurora.org/quic/kernel/agross-msm:
  devicetree: soc: Add Qualcomm SMD based RPM DT binding
  soc: qcom: Driver for the Qualcomm RPM over SMD
  soc: qcom: Add Shared Memory Driver
  soc: qcom: Add device tree binding for Shared Memory Device
  drivers: qcom: Select QCOM_SCM unconditionally for QCOM_PM
  soc: qcom: Add Shared Memory Manager driver

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13 15:05:06 +02:00
Russell King
44e259ac90 ARM: dove: create a proper PMU driver for power domains, PMU IRQs and resets
The PMU device contains an interrupt controller, power control and
resets.  The interrupt controller is a little sub-standard in that
there is no race free way to clear down pending interrupts, so we try
to avoid problems by reducing the window as much as possible, and
clearing as infrequently as possible.

The interrupt support is implemented using an IRQ domain, and the
parent interrupt referenced in the standard DT way.

The power domains and reset support is closely related - there is a
defined sequence for powering down a domain which is tightly coupled
with asserting the reset.  Hence, it makes sense to group these two
together, and in order to avoid any locking contention disrupting this
sequence, we avoid the use of syscon or regmap.

This patch adds the core PMU driver: power domains must be defined in
the DT file in order to make use of them.  The reset controller can
be referenced in the standard way for reset controllers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-08-05 18:36:49 +02:00
Matthias Brugger
9dd068a4b8 soc: mediatek: Fix SCPSYS compilation
SCPSYS driver misses the module.h include which makes it fail
when compiling with allmodconf.

This patch fixes this.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-05 11:12:44 +02:00
Bjorn Andersson
936f14cf4e soc: qcom: Driver for the Qualcomm RPM over SMD
Driver for the Resource Power Manager (RPM) found in Qualcomm 8974 based
devices.
The driver exposes resources that child drivers can operate on; to
implementing regulator, clock and bus frequency drivers.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-07-29 14:13:48 -05:00
Bjorn Andersson
f2ab3298fb soc: qcom: Add Shared Memory Driver
This adds the Qualcomm Shared Memory Driver (SMD) providing
communication channels to remote processors, ontop of SMEM.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-07-29 14:13:48 -05:00
Lina Iyer
23b38ceb81 drivers: qcom: Select QCOM_SCM unconditionally for QCOM_PM
Enable QCOM_SCM for QCOM power management driver

Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-07-28 15:50:17 -05:00
Bjorn Andersson
4b638df4c9 soc: qcom: Add Shared Memory Manager driver
The Shared Memory Manager driver implements an interface for allocating
and accessing items in the memory area shared among all of the
processors in a Qualcomm platform.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-07-28 15:50:16 -05:00
Thierry Reding
1dad36cdd5 soc/tegra: fuse: Add spare bit offset for Tegra210
The offset of the first spare bit register on Tegra210 is 0x380, but
account for the fixed offset of 0x100 in the fuse accessor.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:31 +02:00
Thierry Reding
82df0e5e78 soc/tegra: fuse: Add spare bit offset for Tegra124
The offset of the first spare bit register on Tegra124 is 0x300, but
account for the fixed offset of 0x100 in the fuse accessor.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:31 +02:00
Thierry Reding
b23083a9c6 soc/tegra: fuse: Add spare bit offset for Tegra114
The offset of the first spare bit register on Tegra114 is 0x280, but
account for the fixed offset of 0x100 in the fuse accessor.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:30 +02:00
Thierry Reding
03b3f4c8b7 soc/tegra: fuse: Rename core_* to soc_*
There's a mixture of core_* and soc_* prefixes for variables storing
information related to the VDD_CORE rail. Choose one (soc_*) and use it
more consistently.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:29 +02:00
Thierry Reding
0dc5a0d836 soc/tegra: fuse: Add Tegra210 support
Add Tegra210 support to the fuses driver and add Tegra210-specific
speedo definitions.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:29 +02:00
Thierry Reding
7e939de1b2 soc/tegra: fuse: Unify Tegra20 and Tegra30 drivers
Unifying the drivers makes it easier to restrict the legacy probing
paths to 32-bit ARM. This in turn will come in handy as support for
new 64-bit ARM SoCs is added.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:28 +02:00
Thierry Reding
297c4f3dcb soc/tegra: fuse: Restrict legacy code to 32-bit ARM
For backwards-compatibility with old device trees, if no APBMISC node
exists this driver hard-codes the I/O memory region. All 64-bit ARM
device tree files are recent enough that they can be required to have
this node, and therefore the legacy code path is not required.

Based on work done by Paul Walmsley <pwalmsley@nvidia.com>.

Cc: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:28 +02:00
Thierry Reding
c2fe4694d8 soc/tegra: pmc: Add Tegra210 support
Tegra210 uses a power management controller that is compatible with
earlier SoC generations but adds a couple of power partitions for new
hardware blocks.

Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:27 +02:00
Thierry Reding
7d71e90377 soc/tegra: pmc: Restrict legacy code to 32-bit ARM
For backwards-compatibility with old device trees, if no PMC node exists
this driver hard-codes the I/O memory region. All 64-bit ARM device tree
files are recent enough that they can be required to have this node, and
therefore the legacy code path is not required on 64-bit ARM.

Based on work done by Paul Walmsley <pwalmsley@nvidia.com>.

Cc: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:26 +02:00
Thierry Reding
95169cd23b soc/tegra: pmc: Avoid usage of uninitialized variable
Make sure to only drop the reference to the OF node after it's been
successfully obtained.

Fixes: 3568df3d31d6 ("soc: tegra: Add thermal reset (thermtrip) support to PMC")
Cc: <stable@vger.kernel.org> # v4.0+
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:20 +02:00
Thierry Reding
3a369982b8 soc/tegra: Add Tegra210 support
Add Tegra210 to the matching table for NVIDIA Tegra SoCs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 09:47:59 +02:00
Thierry Reding
ad09c8c23e soc/tegra: Add Tegra132 support
Add Tegra132 to the matching table for NVIDIA Tegra SoCs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 09:47:57 +02:00
Krzysztof Kozlowski
3fd4079fe2 soc: mediatek: Drop owner assignment from platform_driver
platform_driver does not need to set an owner because
platform_driver_register() will set it.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-07-10 16:38:44 +02:00
Sascha Hauer
c84e358718 soc: Mediatek: Add SCPSYS power domain driver
This adds a power domain driver for the Mediatek SCPSYS unit.

The System Control Processor System (SCPSYS) has several power
management related tasks in the system. The tasks include thermal
measurement, dynamic voltage frequency scaling (DVFS), interrupt
filter and lowlevel sleep control. The System Power Manager (SPM)
inside the SCPSYS is for the MTCMOS power domain control.

For now this driver only adds power domain support, the more
advanced features are not yet supported. The driver implements
the generic PM domain device tree bindings, the first user will
most likely be the Mediatek AFE audio driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-07-06 18:36:32 +02:00
Sascha Hauer
16a624a9c8 soc: mediatek: Add infracfg misc driver support
This adds support for some miscellaneous bits of the infracfg controller.
The mtk_infracfg_set/clear_bus_protection functions are necessary for
the scpsys power domain driver to handle the bus protection bits which
are contained in the infacfg register space.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-07-06 18:36:31 +02:00
Linus Torvalds
d4113f2f17 ARM: SoC: late fixes and dependencies
This is a collection of a few late fixes and other misc. stuff that
 had dependencies on things being merged from other trees.
 
 Other than the fixes, the primary feature being added is the
 conversion of some OMAP drivers to the new generic wakeirq interface.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late fixes and dependencies from Kevin Hilman:
 "This is a collection of a few late fixes and other misc stuff that had
  dependencies on things being merged from other trees.

  Other than the fixes, the primary feature being added is the
  conversion of some OMAP drivers to the new generic wakeirq interface"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: multi_v7_defconfig: Enable BRCMNAND driver
  ARM: BCM: Do not select CONFIG_MTD_NAND_BRCMNAND
  ARM: at91/dt: update udc compatible strings
  ARM: at91/dt: trivial: fix USB udc compatible string
  arm64: dts: Add APM X-Gene standby GPIO controller DTS entries
  soc: qcom: spm: Fix idle on THUMB2 kernels
  ARM: dove: fix legacy dove IRQ numbers
  ARM: mvebu: fix suspend to RAM on big-endian configurations
  ARM: mvebu: adjust Armada XP DT spi muxing after pinctrl function rename
  serial: 8250_omap: Move wake-up interrupt to generic wakeirq
  serial: omap: Switch wake-up interrupt to generic wakeirq
  mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq
2015-07-02 14:40:49 -07:00
Linus Torvalds
75462c8a87 Replace module_platform_driver with builtin_platform driver in non modules.
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Merge tag 'module-builtin_driver-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

Pull module_platform_driver replacement from Paul Gortmaker:
 "Replace module_platform_driver with builtin_platform driver in non
  modules.

  We see an increasing number of non-modular drivers using
  modular_driver() type register functions.  There are several downsides
  to letting this continue unchecked:

   - The code can appear modular to a reader of the code, and they won't
     know if the code really is modular without checking the Makefile
     and Kconfig to see if compilation is governed by a bool or
     tristate.

   - Coders of drivers may be tempted to code up an __exit function that
     is never used, just in order to satisfy the required three args of
     the modular registration function.

   - Non-modular code ends up including the <module.h> which increases
     CPP overhead that they don't need.

   - It hinders us from performing better separation of the module init
     code and the generic init code.

  So here we introduce similar macros for builtin drivers.  Then we
  convert builtin drivers (controlled by a bool Kconfig) by making the
  following type of mapping:

    module_platform_driver()       --->  builtin_platform_driver()
    module_platform_driver_probe() --->  builtin_platform_driver_probe().

  The set of drivers that are converted here are just the ones that
  showed up as relying on an implicit include of <module.h> during a
  pending header cleanup.  So we convert them here vs adding an include
  of <module.h> to non-modular code to avoid compile fails.  Additonal
  conversions can be done asynchronously at any time.

  Once again, an unused module_exit function that is removed here
  appears in the diffstat as an outlier wrt all the other changes"

* tag 'module-builtin_driver-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
  drivers/clk: convert sunxi/clk-mod0.c to use builtin_platform_driver
  drivers/power: Convert non-modular syscon-reboot to use builtin_platform_driver
  drivers/soc: Convert non-modular soc-realview to use builtin_platform_driver
  drivers/soc: Convert non-modular tegra/pmc to use builtin_platform_driver
  drivers/cpufreq: Convert non-modular s5pv210-cpufreq.c to use builtin_platform_driver
  drivers/cpuidle: Convert non-modular drivers to use builtin_platform_driver
  drivers/platform: Convert non-modular pdev_bus to use builtin_platform_driver
  platform_device: better support builtin boilerplate avoidance
2015-07-02 10:42:13 -07:00
Stephen Boyd
498f09bce4 soc: qcom: spm: Fix idle on THUMB2 kernels
The ifc6410 firmware always enters the kernel in ARM state from
deep idle. Use the cpu_resume_arm() wrapper instead of
cpu_resume() to property switch into the THUMB2 state when we
wake up from idle.

This fixes a problem reported by Kevin Hilman on next-20150601
where the ifc6410 fails to boot a THUMB2 kernel because the
platform's firmware always enters the kernel in ARM mode from
deep idle states.

Reported-by: Kevin Hilman <khilman@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Lina Iyer <lina.iyer@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-07-01 12:16:30 -07:00
Linus Torvalds
f5dcb68086 ARM: SoC: driver updates for v4.2
Some of these are for drivers/soc, where we're now putting
 SoC-specific drivers these days. Some are for other driver subsystems
 where we have received acks from the appropriate maintainers.
 
 Some highlights:
 
 - simple-mfd: document DT bindings and misc updates
 - migrate mach-berlin to simple-mfd for clock, pinctrl and reset
 - memory: support for Tegra132 SoC
 - memory: introduce tegra EMC driver for scaling memory frequency
 - misc. updates for ARM CCI and CCN busses
 
  Conflicts:
 	arch/arm64/boot/dts/arm/juno-motherboard.dtsi
 
  Trivial add/add conflict with our dt branch.
  Resolution: take both sides.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Kevin Hilman:
 "Some of these are for drivers/soc, where we're now putting
  SoC-specific drivers these days.  Some are for other driver subsystems
  where we have received acks from the appropriate maintainers.

  Some highlights:

   - simple-mfd: document DT bindings and misc updates
   - migrate mach-berlin to simple-mfd for clock, pinctrl and reset
   - memory: support for Tegra132 SoC
   - memory: introduce tegra EMC driver for scaling memory frequency
   - misc. updates for ARM CCI and CCN busses"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  drivers: soc: sunxi: Introduce SoC driver to map SRAMs
  arm-cci: Add aliases for PMU events
  arm-cci: Add CCI-500 PMU support
  arm-cci: Sanitise CCI400 PMU driver specific code
  arm-cci: Abstract handling for CCI events
  arm-cci: Abstract out the PMU counter details
  arm-cci: Cleanup PMU driver code
  arm-cci: Do not enable CCI-400 PMU by default
  firmware: qcom: scm: Add HDCP Support
  ARM: berlin: add an ADC node for the BG2Q
  ARM: berlin: remove useless chip and system ctrl compatibles
  clk: berlin: drop direct of_iomap of nodes reg property
  ARM: berlin: move BG2Q clock node
  ARM: berlin: move BG2CD clock node
  ARM: berlin: move BG2 clock node
  clk: berlin: prepare simple-mfd conversion
  pinctrl: berlin: drop SoC stub provided regmap
  ARM: berlin: move pinctrl to simple-mfd nodes
  pinctrl: berlin: prepare to use regmap provided by syscon
  reset: berlin: drop arch_initcall initialization
  ...
2015-06-26 11:54:29 -07:00
Linus Torvalds
4aa705b18b ARM: SoC: platform support for v4.2
Our SoC branch usually contains expanded support for new SoCs and
 other core platform code. Some highlights from this round:
 
 - sunxi: SMP support for A23 SoC
 - socpga: big-endian support
 - pxa: conversion to common clock framework
 - bcm: SMP support for BCM63138
 - imx: support new I.MX7D SoC
 - zte: basic support for ZX296702 SoC
 
  Conflicts:
 	arch/arm/mach-socfpga/core.h
 
 Trivial remove/remove conflict with our cleanup branch.
 Resolution: remove both sides
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform support updates from Kevin Hilman:
 "Our SoC branch usually contains expanded support for new SoCs and
  other core platform code.  Some highlights from this round:

   - sunxi: SMP support for A23 SoC
   - socpga: big-endian support
   - pxa: conversion to common clock framework
   - bcm: SMP support for BCM63138
   - imx: support new I.MX7D SoC
   - zte: basic support for ZX296702 SoC"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
  ARM: zx: Add basic defconfig support for ZX296702
  ARM: dts: zx: add an initial zx296702 dts and doc
  clk: zx: add clock support to zx296702
  dt-bindings: Add #defines for ZTE ZX296702 clocks
  ARM: socfpga: fix build error due to secondary_startup
  MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
  ARM: ep93xx: simone: support for SPI-based MMC/SD cards
  MAINTAINERS: update Shawn's email to use kernel.org one
  ARM: socfpga: support suspend to ram
  ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
  ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
  ARM: EXYNOS: register power domain driver from core_initcall
  ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
  ARM: SAMSUNG: Constify platform_device_id
  ARM: EXYNOS: Constify irq_domain_ops
  ARM: EXYNOS: add coupled cpuidle support for Exynos3250
  ARM: EXYNOS: add exynos_get_boot_addr() helper
  ARM: EXYNOS: add exynos_set_boot_addr() helper
  ARM: EXYNOS: make exynos_core_restart() less verbose
  ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
  ...
2015-06-26 11:34:35 -07:00