iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/drivers/i2c/busses
History
Sagar Shrikant Kadam c45d4ba867 i2c: ocores: add polling mode workaround for Sifive FU540-C000 SoC 
The i2c-ocore driver already has a polling mode interface.But it needs
a workaround for FU540 Chipset on HiFive unleashed board (RevA00).
There is an erratum in FU540 chip that prevents interrupt driven i2c
transfers from working, and also the I2C controller's interrupt bit
cannot be cleared if set, due to this the existing i2c polling mode
interface added in mainline earlier doesn't work, and CPU stall's
infinitely, when-ever i2c transfer is initiated.

Ref:
	commit dd7dbf0eb090 ("i2c: ocores: refactor setup for polling")

The workaround / fix under OCORES_FLAG_BROKEN_IRQ is particularly for
FU540-COOO SoC.

The polling function identifies a SiFive device based on the device node
and enables the workaround.

Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-06-14 23:24:33 +02:00
..
i2c-acorn.c
i2c: acorn: remove outdated path from file header
2018-01-18 00:08:20 +01:00
i2c-ali15x3.c
Annotate hardware config module parameters in drivers/i2c/
2017-04-20 12:02:32 +01:00
i2c-ali1535.c
…
i2c-ali1563.c
…
i2c-altera.c
i2c: altera: Add Altera I2C Controller driver
2017-09-13 23:37:16 +02:00
i2c-amd756-s4882.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
i2c-amd756.c
…
i2c-amd8111.c
i2c: amd8111: Mark expected switch fall-through
2018-08-08 22:28:46 +02:00
i2c-amd-mp2-pci.c
i2c: Add drivers for the AMD PCIe MP2 I2C controller
2019-03-25 15:21:17 +01:00
i2c-amd-mp2-plat.c
i2c: Add drivers for the AMD PCIe MP2 I2C controller
2019-03-25 15:21:17 +01:00
i2c-amd-mp2.h
i2c: Add drivers for the AMD PCIe MP2 I2C controller
2019-03-25 15:21:17 +01:00
i2c-aspeed.c
i2c: aspeed: Add multi-master use case support
2019-02-15 09:52:03 +01:00
i2c-at91-core.c
i2c: at91: added slave mode support
2019-03-24 22:41:51 +01:00
i2c-at91-master.c
i2c: at91: Convert to use struct i2c_timings
2019-03-27 14:09:53 +01:00
i2c-at91-slave.c
i2c: at91: added slave mode support
2019-03-24 22:41:51 +01:00
i2c-at91.h
i2c: at91: Convert to use struct i2c_timings
2019-03-27 14:09:53 +01:00
i2c-au1550.c
…
i2c-axxia.c
i2c: axxia: use auto cmd for last message
2019-04-16 13:08:17 +02:00
i2c-bcm2835.c
i2c: bcm2835: Model Divider in CCF
2019-06-12 12:36:49 +02:00
i2c-bcm-iproc.c
i2c: iproc: Add multi byte read-write support for slave mode
2019-05-27 21:26:01 +02:00
i2c-bcm-kona.c
…
i2c-brcmstb.c
i2c: brcmstb: remove unused struct member
2019-04-15 13:42:36 +02:00
i2c-cadence.c
i2c: cadence: Fix the hold bit setting
2019-02-15 09:42:17 +01:00
i2c-cbus-gpio.c
i2c: cbus-gpio: Switch to use GPIO descriptors
2019-02-08 22:18:51 +01:00
i2c-cht-wc.c
i2c-cht-wc: Fix bq24190 supplier
2018-07-02 17:38:07 +02:00
i2c-cpm.c
i2c: busses: make i2c_adapter_quirks const
2017-08-29 22:32:47 +02:00
i2c-cros-ec-tunnel.c
i2c: i2c-cros-ec-tunnel: Switch to SPDX identifier.
2018-12-17 23:08:41 +01:00
i2c-davinci.c
Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2018-08-21 17:40:46 -07:00
i2c-designware-baytrail.c
More ACPI updates for 4.20-rc1
2018-10-30 09:15:31 -07:00
i2c-designware-common.c
i2c: designware: Add support for an interface clock
2019-03-20 17:57:18 +01:00
i2c-designware-core.h
i2c: designware: Add support for an interface clock
2019-03-20 17:57:18 +01:00
i2c-designware-master.c
i2c: designware: ratelimit 'transfer when suspended' errors
2019-05-02 18:26:48 +02:00
i2c-designware-pcidrv.c
i2c: designware: Do not allow i2c_dw_xfer() calls while suspended
2019-02-23 11:08:48 +01:00
i2c-designware-platdrv.c
i2c: designware: Add support for an interface clock
2019-03-20 17:57:18 +01:00
i2c-designware-slave.c
i2c: designware: Add SPDX license tag
2018-08-20 10:45:45 +02:00
i2c-digicolor.c
…
i2c-diolan-u2c.c
i2c: busses: make use of i2c_8bit_addr_from_msg
2018-05-29 20:30:49 +02:00
i2c-dln2.c
…
i2c-efm32.c
i2c: busses: make use of i2c_8bit_addr_from_msg
2018-05-29 20:30:49 +02:00
i2c-eg20t.c
PCI: Move Rohm Vendor ID to generic list
2019-02-01 17:24:52 -06:00
i2c-elektor.c
Annotate hardware config module parameters in drivers/i2c/
2017-04-20 12:02:32 +01:00
i2c-emev2.c
i2c: use SPDX identifier for Renesas drivers
2018-08-24 14:49:36 +02:00
i2c-exynos5.c
i2c: exynos5: use core helper to mark adapter suspended
2019-01-08 21:02:51 +01:00
i2c-fsi.c
i2c: fsi: Create busses for all ports
2019-06-08 00:18:31 +02:00
i2c-gpio.c
i2c: gpio: flag atomic capability if possible
2019-04-16 13:08:17 +02:00
i2c-highlander.c
i2c: use SPDX identifier for Renesas drivers
2018-08-24 14:49:36 +02:00
i2c-hix5hd2.c
i2c: busses: make use of i2c_8bit_addr_from_msg
2018-05-29 20:30:49 +02:00
i2c-hydra.c
…
i2c-i801.c
i2c: i801: Fix kernel crash in is_dell_system_with_lis3lv02d()
2019-06-14 23:24:33 +02:00
i2c-ibm_iic.c
i2c: Remove caller signal_pending branch predictions
2018-11-27 12:59:16 +01:00
i2c-ibm_iic.h
…
i2c-img-scb.c
i2c: img-scb: Add runtime PM
2017-10-28 14:03:45 +02:00
i2c-imx-lpi2c.c
i2c: imx-lpi2c: Use __maybe_unused instead of #if CONFIG_PM_SLEEP
2019-05-03 16:51:38 +02:00
i2c-imx.c
i2c: imx: Use __maybe_unused instead of #if CONFIG_PM
2019-05-27 21:26:01 +02:00
i2c-iop3xx.c
i2c: iop: Use GPIO descriptors
2019-06-12 13:20:23 +02:00
i2c-iop3xx.h
i2c: iop: Use GPIO descriptors
2019-06-12 13:20:23 +02:00
i2c-isch.c
i2c: isch: Remove unnecessary acpi.h include
2019-04-03 22:55:56 +02:00
i2c-ismt.c
i2c: ismt: Add support for Intel Cedar Fork
2019-01-03 20:02:32 +01:00
i2c-jz4780.c
…
i2c-kempld.c
i2c: busses: make use of i2c_8bit_addr_from_msg
2018-05-29 20:30:49 +02:00
i2c-lpc2k.c
i2c: use dev_get_drvdata() to get private data in suspend/resume hooks
2017-07-31 17:03:32 +02:00
i2c-meson.c
i2c: meson: update with SPDX Licence identifier
2019-05-27 21:27:25 +02:00
i2c-mlxcpld.c
i2c: mlxcpld: Allow configurable adapter id for mlxcpld
2018-04-30 10:39:29 +02:00
i2c-mpc.c
i2c: mpc: always determine I2C clock prescaler at runtime
2018-01-15 19:19:55 +01:00
i2c-mt65xx.c
i2c: mediatek: Add i2c support for MediaTek MT8183
2019-04-15 13:40:43 +02:00
i2c-mv64xxx.c
i2c: mv64xxx: Apply errata delay only in standard mode
2018-03-17 21:20:04 +01:00
i2c-mxs.c
i2c: mxs: use core to detect 'no zero length' quirk
2018-08-04 23:25:06 +02:00
i2c-nforce2-s4985.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
i2c-nforce2.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
i2c-nomadik.c
i2c: nomadik: remove an unnecessary NULL check in nmk_i2c_remove()
2019-04-03 22:49:31 +02:00
i2c-nvidia-gpu.c
i2c: nvidia-gpu: resume ccgx i2c client
2019-06-08 00:09:23 +02:00
i2c-ocores.c
i2c: ocores: add polling mode workaround for Sifive FU540-C000 SoC
2019-06-14 23:24:33 +02:00
i2c-octeon-core.c
i2c: octeon: Prevent error message on bus error
2018-03-02 11:11:15 +01:00
i2c-octeon-core.h
i2c: octeon: Prevent error message on bus error
2018-03-02 11:11:15 +01:00
i2c-octeon-platdrv.c
i2c: busses: make i2c_adapter const
2017-08-29 22:26:08 +02:00
i2c-omap.c
i2c: omap: Add the master_xfer_atomic hook
2019-04-16 13:08:13 +02:00
i2c-opal.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114
2019-05-24 17:39:01 +02:00
i2c-owl.c
i2c: Add Actions Semiconductor Owl family S700 I2C support
2019-01-03 20:36:18 +01:00
i2c-parport-light.c
i2c: i2c-smbus: Use threaded irq for smbalert
2017-10-28 23:42:26 +02:00
i2c-parport.c
i2c: i2c-smbus: Use threaded irq for smbalert
2017-10-28 23:42:26 +02:00
i2c-parport.h
…
i2c-pasemi.c
i2c: pasemi: remove hardcoded bus numbers on smbus
2018-08-20 11:01:13 +02:00
i2c-pca-isa.c
Annotate hardware config module parameters in drivers/i2c/
2017-04-20 12:02:32 +01:00
i2c-pca-platform.c
i2c: pca-platform: move header to platform_data
2018-05-17 16:27:58 +02:00
i2c-piix4.c
i2c-piix4: Add Hygon Dhyana SMBus support
2019-05-03 16:47:54 +02:00
i2c-pmcmsp.c
i2c: pmcmsp: use core to detect 'no zero length' quirk
2018-08-04 23:25:06 +02:00
i2c-pnx.c
i2c: pnx: move header into the driver
2018-05-17 16:27:59 +02:00
i2c-powermac.c
i2c: powermac: Use of_node_name_eq for node name comparisons
2018-12-11 21:16:28 +01:00
i2c-puv3.c
i2c: busses: make i2c_algorithm const
2017-08-29 22:20:20 +02:00
i2c-pxa-pci.c
ARM: pxa: move header file out of I2C realm
2017-11-28 22:49:30 +01:00
i2c-pxa.c
ARM: pxa: move header file out of I2C realm
2017-11-28 22:49:30 +01:00
i2c-qcom-geni.c
i2c: qcom-geni: Fix runtime PM mismatch with child devices
2018-11-09 17:25:48 +01:00
i2c-qup.c
i2c: qup: use core to detect 'no zero length' quirk
2018-10-05 18:05:08 +02:00
i2c-rcar.c
i2c: rcar: wait for data empty before starting DMA
2019-03-20 18:19:20 +01:00
i2c-riic.c
i2c: riic: Add Runtime PM support
2019-04-23 23:29:12 +02:00
i2c-rk3x.c
i2c: rk3x: Don't print visible virtual mapping MMIO address
2018-05-24 22:09:05 +02:00
i2c-robotfuzz-osif.c
i2c: robotfuzz-osif: drop pointless test
2018-05-24 22:13:04 +02:00
i2c-s3c2410.c
i2c: s3c2410: Convert to use GPIO descriptors
2019-06-12 12:58:07 +02:00
i2c-scmi.c
i2c: scmi: Fix probe error on devices with an empty SMB0001 ACPI device node
2018-12-06 23:14:59 +01:00
i2c-sh7760.c
…
i2c-sh_mobile.c
i2c: sh_mobile: use new clock calculation formulas for Gen2
2019-02-08 22:24:50 +01:00
i2c-sibyte.c
…
i2c-simtec.c
i2c: simtec: use release_mem_region instead of release_resource
2017-08-14 21:39:21 +02:00
i2c-sirf.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4
2019-05-21 11:28:40 +02:00
i2c-sis96x.c
…
i2c-sis630.c
i2c: sis630: correct format strings
2019-03-12 14:09:16 +01:00
i2c-sis5595.c
Annotate hardware config module parameters in drivers/i2c/
2017-04-20 12:02:32 +01:00
i2c-sprd.c
i2c: sprd: use core helper to mark adapter suspended
2019-01-08 21:02:50 +01:00
i2c-st.c
i2c: use dev_get_drvdata() to get private data in suspend/resume hooks
2017-07-31 17:03:32 +02:00
i2c-stm32.c
i2c: i2c-stm32: Add generic DMA API
2018-04-30 10:39:27 +02:00
i2c-stm32.h
i2c: i2c-stm32: Add generic DMA API
2018-04-30 10:39:27 +02:00
i2c-stm32f4.c
i2c-stm32f4: remove redundant initialization of pointer reg
2018-02-27 13:51:05 +01:00
i2c-stm32f7.c
i2c: i2c-stm32f7: improve loopback in timing algorithm
2019-03-20 17:59:05 +01:00
i2c-stu300.c
i2c: stu300: use xfer_atomic callback to bail out early
2019-04-16 13:08:16 +02:00
i2c-sun6i-p2wi.c
i2c: sun6i-pw2i: explicitly request exclusive reset control
2017-08-14 21:40:21 +02:00
i2c-synquacer.c
i2c: synquacer: fix enumeration of slave devices
2019-05-02 18:38:53 +02:00
i2c-taos-evm.c
i2c: taos-evm: Remove duplicate NULL check
2017-11-02 00:01:21 +01:00
i2c-tegra-bpmp.c
i2c: tegra-bpmp: convert to use new atomic callbacks
2019-04-16 13:08:14 +02:00
i2c-tegra.c
i2c: tegra: Avoid error message on deferred probe
2019-06-14 23:24:33 +02:00
i2c-thunderx-pcidrv.c
i2c: thunderx: Remove duplicate NULL check
2017-11-02 00:01:31 +01:00
i2c-tiny-usb.c
i2c: i2c-tiny-usb: fix buffer not being DMA capable
2017-05-22 10:33:42 +02:00
i2c-uniphier-f.c
i2c: uniphier-f: fix violation of tLOW requirement for Fast-mode
2018-12-06 23:14:59 +01:00
i2c-uniphier.c
i2c: uniphier: fix violation of tLOW requirement for Fast-mode
2018-12-06 23:14:59 +01:00
i2c-versatile.c
i2c: versatile: Make i2c_algo_bit_data const
2017-08-29 22:34:12 +02:00
i2c-via.c
…
i2c-viapro.c
Annotate hardware config module parameters in drivers/i2c/
2017-04-20 12:02:32 +01:00
i2c-viperboard.c
i2c: viperboard: return message count on master_xfer success
2018-05-15 09:31:26 +02:00
i2c-wmt.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 75
2019-05-24 17:36:47 +02:00
i2c-xgene-slimpro.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13
2019-05-21 11:28:45 +02:00
i2c-xiic.c
i2c: xiic: Make the start and the byte count write atomic
2018-09-06 20:49:09 +02:00
i2c-xlp9xx.c
i2c: xlp9xx: Fix case where SSIF read transaction completes early
2018-08-09 17:41:13 +02:00
i2c-xlr.c
i2c: xlr: use core to detect 'no zero length' quirk
2018-08-04 23:25:08 +02:00
i2c-zx2967.c
i2c: zx2967: use core helper to mark adapter suspended
2019-01-08 21:02:49 +01:00
Kconfig
i2c: jz4780: Drop dependency on MACH_JZ4780
2019-05-27 21:35:04 +02:00
Makefile
i2c: Add drivers for the AMD PCIe MP2 I2C controller
2019-03-25 15:21:17 +01:00
scx200_acb.c
Annotate hardware config module parameters in drivers/i2c/
2017-04-20 12:02:32 +01:00