AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/i2c
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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
..
algos i2c: algo: Use generic definitions for bus frequencies 2020-03-24 22:00:05 +01:00
busses i2c: aspeed: Avoid i2c interrupt status clear race condition. 2020-04-30 16:12:33 +02:00
muxes i2c: mux: pca954x: support property idle-state 2020-01-03 15:00:53 +01:00
i2c-boardinfo.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-core-acpi.c Linux 5.6-rc7 2020-03-26 12:09:58 +01:00
i2c-core-base.c i2c: remove i2c_new_probed_device API 2020-04-15 11:48:21 +02:00
i2c-core-of.c i2c: i2c-core-of: convert to use i2c_new_client_device() 2020-01-15 20:40:12 +01:00
i2c-core-slave.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-core-smbus.c i2c: smbus: remove outdated references to irq level triggers 2020-03-10 12:20:04 +01:00
i2c-core.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-dev.c i2c: dev: Fix the race between the release of i2c_dev and cdev 2020-03-20 18:34:29 +01:00
i2c-mux.c i2c: mux: add sysfs header 2019-06-22 07:32:33 +02:00
i2c-slave-eeprom.c i2c: use kobj_to_dev() API 2020-03-10 10:50:08 +01:00
i2c-smbus.c i2c: convert SMBus alert setup function to return an ERRPTR 2020-03-10 12:19:52 +01:00
i2c-stub.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
Kconfig docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
Makefile