This serie adds support for SMBus Alert on the STM32F7. A new binding smbus-alert is added in order to differenciate with the existing smbus binding. SMBus-Alert is an optional SMBus feature and SMBA alert control and status logic must be enabled along with SMBALERT# pin configured via pinctrl in the device tree. This is the rational for adding "smbus-alert" property. --- v4: add a new generic smbus-alert property instead of st,smbus-alert update driver to use smbus-alert instead of st,smbus-alert v3: use lore.kernel.org links instead of marc.info v2: When SMBUS alert isn't available on the board (SMBA unused), this logic musn't be enabled. Enabling it unconditionally wrongly lead to get SMBA interrupts. So, add "st,smbus-alert" dedicated binding to have a smbus alert with a consistent pin configuration in DT. Alain Volmat (2): i2c: add binding to mark a bus as supporting SMBus-Alert i2c: stm32f7: add SMBus-Alert support Documentation/devicetree/bindings/i2c/i2c.txt | 7 ++- drivers/i2c/busses/i2c-stm32f7.c | 73 +++++++++++++++++++++++++++ 2 files changed, 78 insertions(+), 2 deletions(-) -- 2.7.4
