linux/drivers/i2c
Jean Delvare c1c9d0f6f7 i2c: i801: Fix block process call transactions
According to the Intel datasheets, software must reset the block
buffer index twice for block process call transactions: once before
writing the outgoing data to the buffer, and once again before
reading the incoming data from the buffer.

The driver is currently missing the second reset, causing the wrong
portion of the block buffer to be read.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reported-by: Piotr Zakowski <piotr.zakowski@intel.com>
Closes: https://lore.kernel.org/linux-i2c/20240213120553.7b0ab120@endymion.delvare/
Fixes: 315cd67c94 ("i2c: i801: Add Block Write-Block Read Process Call support")
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-02-14 22:15:38 +01:00
..
algos i2c: algo: bit: allow getsda to be NULL 2023-01-23 23:15:49 +01:00
busses i2c: i801: Fix block process call transactions 2024-02-14 22:15:38 +01:00
muxes i2c: mux: reg: Remove class-based device auto-detection support 2024-01-18 21:10:43 +01:00
i2c-atr.c i2c: Annotate struct i2c_atr with __counted_by 2023-09-24 22:50:25 +02:00
i2c-boardinfo.c i2c: Remove support for dangling device properties 2021-04-10 21:43:02 +02:00
i2c-core-acpi.c i2c: add fwnode APIs 2023-01-17 09:29:59 +01:00
i2c-core-base.c i2c: make i2c_bus_type const 2024-01-18 21:10:43 +01:00
i2c-core-of.c Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
i2c-core-slave.c i2c: add tracepoints for I2C slave events 2022-03-20 00:11:05 +01:00
i2c-core-smbus.c i2c: smbus: Check for parent device before dereference 2022-02-19 12:37:20 +01:00
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: Convert drivers to new .probe() callback 2023-03-09 21:59:30 +01:00
i2c-slave-testunit.c i2c: Convert drivers to new .probe() callback 2023-03-09 21:59:30 +01:00
i2c-smbus.c i2c: smbus: Support up to 8 SPD EEPROMs 2024-01-18 21:10:42 +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
Kconfig i2c: Make I2C_ATR invisible 2023-09-13 10:56:00 +02:00
Makefile media: i2c: add I2C Address Translator (ATR) support 2023-07-14 13:11:44 +02:00