linux-kernelorg-stable/drivers/i2c
Maxim Levitsky d1ef7a9ca8 i2c: i801: Fix a refactoring that broke a touchpad on Lenovo P1
Commit 857cc04cdf ("i2c: i801: Add helper i801_get_block_len")
introduced a slight functional change: the status variable is now
overwritten with the length of an SMBUS tranasaction,
even in case of success.

This breaks the touchpad on at least my Lenovo P1:

rmi4_physical rmi4-00: Read PDT entry at 0x00e9 failed, code: -6.
rmi4_physical rmi4-00: RMI initial reset failed! Continuing in spite of this.
rmi4_physical rmi4-00: Read PDT entry at 0x00e9 failed, code: -6.
rmi4_physical rmi4-00: IRQ counting failed with code -6.

Fixes: 857cc04cdf ("i2c: i801: Add helper i801_get_block_len")
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-03-26 00:47:08 +01:00
..
algos
busses i2c: i801: Fix a refactoring that broke a touchpad on Lenovo P1 2024-03-26 00:47:08 +01:00
muxes i2c: muxes: pca954x: Allow sharing reset GPIO 2024-03-20 09:45:04 +01:00
Kconfig
Makefile
i2c-atr.c i2c: Annotate struct i2c_atr with __counted_by 2023-09-24 22:50:25 +02:00
i2c-boardinfo.c
i2c-core-acpi.c
i2c-core-base.c i2c: constify the struct device_type usage 2024-03-04 14:28:25 +01:00
i2c-core-of.c
i2c-core-slave.c
i2c-core-smbus.c
i2c-core.h i2c: core: Fix atomic xfer check for non-preempt config 2024-01-06 14:10:10 +01:00
i2c-dev.c i2c: dev: copy userspace array safely 2023-11-08 10:26:27 +01:00
i2c-mux.c i2c: mux: Avoid potential false error message in i2c_mux_add_adapter 2023-09-25 08:22:02 +02:00
i2c-slave-eeprom.c
i2c-slave-testunit.c
i2c-smbus.c i2c: smbus: Prepare i2c_register_spd for usage on muxed segments 2024-03-04 21:44:56 +01:00
i2c-stub.c i2c: stub: Don't let i2c adapters declare I2C_CLASS_SPD support if they support I2C_CLASS_HWMON 2024-01-18 21:10:41 +01:00