Messages in this thread | | | From | Alain Volmat <> | Subject | [PATCH v2 0/2] i2c: stm32f7: add SMBus-Alert support | Date | Thu, 18 Mar 2021 14:44:47 +0100 |
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This serie adds support for SMBus Alert on the STM32F7. A new binding st,smbus-alert is added in order to differenciate with the existing smbus binding.
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 "st,smbus-alert" property.
--- 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): dt-bindings: i2c: stm32f7: add st,smbus-alert binding for SMBus Alert i2c: stm32f7: add SMBus-Alert support
.../devicetree/bindings/i2c/st,stm32-i2c.yaml | 5 ++ drivers/i2c/busses/i2c-stm32f7.c | 73 +++++++++++++++++++ 2 files changed, 78 insertions(+)
-- 2.17.1
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