linux_dsm_epyc7002/drivers/i2c
Evan Nimmo 0a355aeb24 i2c: algo: pca: Reapply i2c bus settings after reset
If something goes wrong (such as the SCL being stuck low) then we need
to reset the PCA chip. The issue with this is that on reset we lose all
config settings and the chip ends up in a disabled state which results
in a lock up/high CPU usage. We need to re-apply any configuration that
had previously been set and re-enable the chip.

Signed-off-by: Evan Nimmo <evan.nimmo@alliedtelesis.co.nz>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-09 10:22:40 +02:00
..
algos i2c: algo: pca: Reapply i2c bus settings after reset 2020-09-09 10:22:40 +02:00
busses i2c: npcm7xx: Fix timeout calculation 2020-09-08 08:24:59 +02:00
muxes
i2c-boardinfo.c
i2c-core-acpi.c i2c: acpi: Remove dead code, i.e. i2c_acpi_match_device() 2020-08-25 09:22:09 +02:00
i2c-core-base.c i2c: core: Don't fail PRP0001 enumeration when no ID table exist 2020-08-25 09:21:55 +02:00
i2c-core-of.c
i2c-core-slave.c
i2c-core-smbus.c
i2c-core.h i2c: acpi: Remove dead code, i.e. i2c_acpi_match_device() 2020-08-25 09:22:09 +02:00
i2c-dev.c
i2c-mux.c
i2c-slave-eeprom.c
i2c-smbus.c
i2c-stub.c
Kconfig
Makefile