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87d9e56849
linux/drivers/i2c/busses
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ryan_chen c926c87b8e i2c: aspeed: Avoid i2c interrupt status clear race condition. 
In AST2600 there have a slow peripheral bus between CPU and i2c
controller. Therefore GIC i2c interrupt status clear have delay timing,
when CPU issue write clear i2c controller interrupt status. To avoid
this issue, the driver need have read after write clear at i2c ISR.

Fixes: f327c686d3 ("i2c: aspeed: added driver for Aspeed I2C")
Signed-off-by: ryan_chen <ryan_chen@aspeedtech.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[wsa: added Fixes tag]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-04-30 16:12:33 +02:00
..
i2c-acorn.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-ali15x3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-ali1535.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-ali1563.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
i2c-altera.c i2c: altera: use proper variable to hold errno 2020-04-15 11:48:21 +02:00
i2c-amd756-s4882.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-amd756.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-amd8111.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-amd-mp2-pci.c i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling 2020-04-30 16:11:41 +02:00
i2c-amd-mp2-plat.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +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: Avoid i2c interrupt status clear race condition. 2020-04-30 16:12:33 +02:00
i2c-at91-core.c Merge branch 'i2c/for-current' into i2c/for-5.6 2020-01-15 18:31:37 +01:00
i2c-at91-master.c i2c: at91: implement i2c bus recovery 2020-02-26 11:06:41 +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: implement i2c bus recovery 2020-02-26 11:06:41 +01:00
i2c-au1550.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-axxia.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-bcm2835.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-bcm-iproc.c i2c: iproc: generate stop event for slave writes 2020-04-28 13:31:09 +02:00
i2c-bcm-kona.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-brcmstb.c i2c: brcmstb: Support BCM2711 HDMI BSC controllers 2020-03-10 11:08:53 +01:00
i2c-cadence.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +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: convert to use i2c_new_client_device() 2020-01-15 20:39:07 +01:00
i2c-cpm.c Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2019-07-15 21:10:39 -07:00
i2c-cros-ec-tunnel.c i2c: cros-ec-tunnel: Fix ACPI identifier 2020-01-31 09:01:25 +01:00
i2c-davinci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-designware-baytrail.c i2c: designware: Fix spelling typos in the comments 2020-03-21 19:53:08 +01:00
i2c-designware-common.c i2c: designware: Fix spelling typos in the comments 2020-03-21 19:53:08 +01:00
i2c-designware-core.h i2c: designware: Discard i2c_dw_read_comp_param() function 2020-03-21 19:32:24 +01:00
i2c-designware-master.c i2c: designware: Fix spelling typos in the comments 2020-03-21 19:53:08 +01:00
i2c-designware-pcidrv.c Linux 5.6-rc7 2020-03-26 12:09:58 +01:00
i2c-designware-platdrv.c i2c: designware: platdrv: Remove DPM_FLAG_SMART_SUSPEND flag on BYT and CHT 2020-04-15 11:48:20 +02:00
i2c-designware-slave.c i2c: designware: Fix spelling typos in the comments 2020-03-21 19:53:08 +01:00
i2c-digicolor.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-diolan-u2c.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-dln2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-efm32.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-eg20t.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285 2019-06-05 17:36:37 +02:00
i2c-elektor.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-emev2.c i2c: emev2: avoid race when unregistering slave client 2019-08-14 14:49:43 +02:00
i2c-exynos5.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-fsi.c i2c: fsi: Add of_put_node() before break 2019-09-03 20:33:43 +02:00
i2c-gpio.c i2c: gpio: suppress error on probe defer 2020-03-10 12:31:55 +01:00
i2c-highlander.c Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-02-07 12:54:13 -08:00
i2c-hix5hd2.c Merge branch 'i2c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-04-02 15:54:13 -07:00
i2c-hydra.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-i801.c i2c: i801: Do not add ICH_RES_IO_SMI for the iTCO_wdt device 2020-03-10 10:27:11 +01:00
i2c-ibm_iic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-ibm_iic.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-icy.c i2c: icy: convert to i2c_new_scanned_device 2019-11-28 17:15:48 +01:00
i2c-img-scb.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-imx-lpi2c.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-imx.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-iop3xx.c i2c: iop3xx: Fix memory leak in probe error path 2020-01-15 20:31:27 +01:00
i2c-iop3xx.h Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2019-07-15 21:10:39 -07:00
i2c-isch.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
i2c-ismt.c i2c: ismt: Remove call to memset after dmam_alloc_coherent 2019-08-01 14:48:55 +02:00
i2c-jz4780.c i2c: jz4780: silence log flood on txabrt 2020-02-13 09:24:04 +01:00
i2c-kempld.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 294 2019-06-05 17:36:38 +02:00
i2c-lpc2k.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-meson.c i2c: meson: implement the master_xfer_atomic callback 2020-01-13 23:13:03 +01:00
i2c-mlxcpld.c i2c: mlxcpld: Fix wrong initialization order in probe 2019-05-27 21:24:58 +02:00
i2c-mpc.c
i2c-mt65xx.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-mt7621.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-mv64xxx.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-mxs.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-nforce2-s4985.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-nforce2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-nomadik.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-nvidia-gpu.c i2c: nvidia-gpu: Handle timeout correctly in gpu_i2c_check_status() 2020-03-24 22:40:55 +01:00
i2c-ocores.c i2c: ocores: convert to use i2c_new_client_device() 2020-01-15 20:39:26 +01:00
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-omap.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-opal.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114 2019-05-24 17:39:01 +02:00
i2c-owl.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-parport.c i2c: convert SMBus alert setup function to return an ERRPTR 2020-03-10 12:19:52 +01:00
i2c-pasemi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
i2c-pca-isa.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-pca-platform.c i2c: pca-platform: Use platform_irq_get_optional 2020-03-28 05:03:17 +01:00
i2c-piix4.c Merge branch 'i2c/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2019-09-24 16:48:02 -07:00
i2c-pmcmsp.c Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-02-07 12:54:13 -08:00
i2c-pnx.c i2c: pnx: Use proper printk format for resource_size_t 2020-01-15 21:10:40 +01:00
i2c-powermac.c i2c: powermac: correct comment about custom handling 2020-03-10 10:18:57 +01:00
i2c-puv3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-pxa-pci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 462 2019-06-19 17:09:10 +02:00
i2c-pxa.c i2c: pxa: remove unused i2c-slave APIs 2019-11-11 21:38:09 +01:00
i2c-qcom-geni.c i2c: qcom-geni: Drop of_platform.h include 2020-03-13 15:20:39 +01:00
i2c-qup.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-rcar.c i2c: rcar: clean up after refactoring i2c_timings 2020-03-31 17:34:29 +02:00
i2c-riic.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-rk3x.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-robotfuzz-osif.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-s3c2410.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-scmi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-sh7760.c
i2c-sh_mobile.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-sibyte.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-simtec.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235 2019-06-19 17:09:07 +02:00
i2c-sirf.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-sis96x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-sis630.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-sis5595.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-sprd.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-st.c Merge branch 'i2c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-04-02 15:54:13 -07:00
i2c-stm32.c i2c: stm32f7: report dma error during probe 2019-11-11 21:37:59 +01:00
i2c-stm32.h i2c: stm32: Use the correct style for SPDX License Identifier 2019-08-14 14:56:54 +02:00
i2c-stm32f4.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-stm32f7.c i2c: stm32f7: switch to I²C generic property parsing 2020-03-24 21:59:58 +01:00
i2c-stu300.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-sun6i-p2wi.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-synquacer.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-taos-evm.c i2c: taos-evm: convert to use i2c_new_client_device() 2020-01-15 20:39:41 +01:00
i2c-tegra-bpmp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
i2c-tegra.c Revert "i2c: tegra: Better handle case where CPU0 is busy for a long time" 2020-04-28 13:31:17 +02:00
i2c-thunderx-pcidrv.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-tiny-usb.c i2c: tiny-usb: Correct I2C fault codes. 2020-01-06 15:40:43 +01:00
i2c-uniphier-f.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-uniphier.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-versatile.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-via.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-viapro.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-viperboard.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-wmt.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
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: fix indentation issue 2020-01-29 21:53:51 +01:00
i2c-xlp9xx.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-xlr.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-zx2967.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Kconfig i2c: exynos: Update Kconfig documentation 2020-01-23 12:15:18 +01:00
Makefile i2c: parport-light: remove driver 2020-01-15 18:18:34 +01:00
scx200_acb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00