These patches fix a couple of issues with the i2c-piix4 driver on AMD Family 16h Model 30h SoCs and add ACPI-based enumeration to the i2c-piix4 driver.
Some I2C peripherals, eg. PCA953x IO expander, are not discovered by the probe or detect mechanisms when attached to an SMBus controller that uses the i2c-piix4 SMBus driver. ACPI provides a mechanism to define these peripherals and the controller port that they're attached to. Changes: v3: take chip revision into account when determining port selection register v2: count the adapters, instead of misusing port numbers Andrew Cooks (3): i2c: piix4: Fix SMBus port selection for AMD Family 16h chips i2c: piix4: fix number of SMBus ports on HUDSON2 i2c: add ACPI support for i2c-piix4 drivers/i2c/busses/i2c-piix4.c | 41 ++++++++++++++++++++++++++++++----------- 1 file changed, 30 insertions(+), 11 deletions(-) -- 2.7.4
