linux-kernel - Re: [PATCH 1/2] pinctrl: stm32: fix bank io port number

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Date:   Tue, 24 Jul 2018 18:07:48 +0200
From:   Alexandre Torgue <alexandre.torgue@...com>
To:     Rob Herring <robh@...nel.org>
CC:     Linus Walleij <linus.walleij@...aro.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <amelie.delaunay@...com>
Subject: Re: [PATCH 1/2] pinctrl: stm32: fix bank io port number

Hi Rob

On 07/20/2018 06:35 PM, Rob Herring wrote:
> On Mon, Jul 16, 2018 at 02:57:36PM +0200, Alexandre Torgue wrote:
>> In case the exti line is not in line with the bank number (that is the case
>> when there is an hole between two banks, for example GPIOK and then GPIOZ),
>> use "st,bank-ioport" DT property to get the right exti line.
>>
>> Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>
>> Signed-off-by: Alexandre Torgue <alexandre.torgue@...com>
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
>> index 9a06e1f..60c678a 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
>> +++ b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
>> @@ -55,6 +55,8 @@ Optional properties:
>>      NOTE: If "gpio-ranges" is used for a gpio controller, all gpio-controller
>>      have to use a "gpio-ranges" entry.
>>      More details in Documentation/devicetree/bindings/gpio/gpio.txt.
>> + - st,bank-ioport: should correspond to the EXTI IOport selection (EXTI line
>> +   used to select GPIOs as interrupts).
> 
> ioport sounds like something else. Perhaps '-exti-line'?

IOport is actually what is described in our datasheet. I could change it 
to -exti-line but I would prefer to match with the datasheet.

Regards
Alex
> 
>>   
>>   Example 1:
>>   #include <dt-bindings/pinctrl/stm32f429-pinfunc.h>