Re: [PATCH v3 0/2] i2c: stm32f7: add SMBus-Alert support
From: Alain Volmat
Date: Fri Apr 30 2021 - 12:44:45 EST
Hi Wolfram,
Gentle reminder about this serie about SMBus-Alert. Could you have
a look at it ?
Thanks
Alain
On Mon, Mar 29, 2021 at 08:09:03AM +0200, Alain Volmat wrote:
> 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.
>
> ---
> 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):
> 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
>