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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-28 15:13:55 +08:00
linux-next/drivers/i2c
Hans de Goede 0a30446c0d i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value
Currently acpi_gsb_i2c_read_bytes() directly returns i2c_transfer's return
value. i2c_transfer returns a value < 0 on error and 2 (for 2 successfully
executed transfers) on success. But the ACPI code expects 0 on success, so
currently acpi_gsb_i2c_read_bytes()'s caller does:

        if (status > 0)
                status = 0;

This commit makes acpi_gsb_i2c_read_bytes() return a value which can be
directly consumed by the ACPI code, mirroring acpi_gsb_i2c_write_bytes(),
this commit also makes acpi_gsb_i2c_read_bytes() explitcly check that
i2c_transfer returns 2, rather then accepting any value > 0.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-08-20 14:09:26 +02:00
..
algos i2c: algos: bit: mention our experience about initial states 2018-06-29 08:19:51 +02:00
busses i2c: imx: Simplify stopped state tracking 2018-08-20 11:13:16 +02:00
muxes Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-4.19 2018-08-04 23:05:11 +02:00
i2c-boardinfo.c i2c: i2c-boardinfo: fix memory leaks on devinfo 2017-11-27 19:14:29 +01:00
i2c-core-acpi.c i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value 2018-08-20 14:09:26 +02:00
i2c-core-base.c i2c: core: Parse SDA hold time from firmware 2018-08-08 22:28:52 +02:00
i2c-core-of.c i2c: Export of_i2c_get_board_info() 2018-05-22 13:42:16 +02:00
i2c-core-slave.c i2c: remove i2c_lock_adapter and use i2c_lock_bus directly 2018-07-13 00:09:37 +02:00
i2c-core-smbus.c i2c: smbus: add unlocked __i2c_smbus_xfer variant 2018-07-03 22:57:25 +02:00
i2c-core.h i2c: make i2c_check_addr_validity() static 2018-03-24 14:07:23 +01:00
i2c-dev.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
i2c-mux.c i2c: mux: make use of __i2c_smbus_xfer 2018-07-03 22:57:55 +02:00
i2c-slave-eeprom.c i2c: Drop owner assignment from i2c_driver 2015-08-10 08:37:35 +02:00
i2c-smbus.c i2c: i2c-smbus: add of_i2c_setup_smbus_alert 2017-10-28 23:42:47 +02:00
i2c-stub.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
Kconfig Merge branch 'i2c/for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-12-15 12:56:35 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00