linux-kernel - Re: [PATCH v3 0/2] i2c: stm32f7: add SMBus-Alert support

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Message-ID: <20210430164413.GA3426@gnbcxd0016.gnb.st.com>
Date:   Fri, 30 Apr 2021 18:44:13 +0200
From:   Alain Volmat <alain.volmat@...s.st.com>
To:     <wsa@...nel.org>, <robh+dt@...nel.org>
CC:     <mark.rutland@....com>, <pierre-yves.mordret@...s.st.com>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...s.st.com>,
        <linux-i2c@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <fabrice.gasnier@...s.st.com>
Subject: Re: [PATCH v3 0/2] i2c: stm32f7: add SMBus-Alert support

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
>