linux-kernel - Re: [PATCH v2 01/10] pinctrl: dt-bindings: samsung: Add header with values used for configuration

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Message-id: <5d29ca8c-2dfc-4477-9c5c-80254d6ddac4@samsung.com>
Date:   Thu, 01 Sep 2016 13:13:02 +0200
From:   Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:     Tomasz Figa <tomasz.figa@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
        Kukjin Kim <kgene@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        javier@....samsung.com, Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH v2 01/10] pinctrl: dt-bindings: samsung: Add header with
 values used for configuration

On 09/01/2016 01:02 PM, Bartlomiej Zolnierkiewicz wrote:
> 
> Hi,
> 
> On Thursday, September 01, 2016 09:23:49 AM Krzysztof Kozlowski wrote:
>> Hard-coded pinctrl configuration values are scattered through DTS files.
>> The numbers are difficult to decode by human, especially without the
>> datasheet.  Additionally the drive strength differs between Exynos SoC
>> families increasing the confusion.
>>
>> The header will help making this more readable and maintainable.
>>
>> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
>> ---
>>  MAINTAINERS                           |  1 +
>>  include/dt-bindings/pinctrl/samsung.h | 57 +++++++++++++++++++++++++++++++++++
>>  2 files changed, 58 insertions(+)
>>  create mode 100644 include/dt-bindings/pinctrl/samsung.h
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index d8e81b1dde30..836bcd327ee4 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -9318,6 +9318,7 @@ L:	linux-arm-kernel@...ts.infradead.org (moderated for non-subscribers)
>>  L:	linux-samsung-soc@...r.kernel.org (moderated for non-subscribers)
>>  S:	Maintained
>>  F:	drivers/pinctrl/samsung/
>> +F:	include/dt-bindings/pinctrl/samsung.h
>>  
>>  PIN CONTROLLER - SINGLE
>>  M:	Tony Lindgren <tony@...mide.com>
>> diff --git a/include/dt-bindings/pinctrl/samsung.h b/include/dt-bindings/pinctrl/samsung.h
>> new file mode 100644
>> index 000000000000..0f410ba5ec7e
>> --- /dev/null
>> +++ b/include/dt-bindings/pinctrl/samsung.h
>> @@ -0,0 +1,57 @@
>> +/*
>> + * Samsung's Exynos pinctrl bindings
>> + *
>> + * Copyright (c) 2016 Samsung Electronics Co., Ltd.
>> + *		http://www.samsung.com
>> + * Author: Krzysztof Kozlowski <krzk@...nel.org>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#ifndef __DT_BINDINGS_PINCTRL_EXYNOS_H__
>> +#define __DT_BINDINGS_PINCTRL_EXYNOS_H__
> 
> Minor nit:
> 
> shouldn't this be __DT_BINDINGS_PINCTRL_SAMSUNG_H__ (the header file
> is named samsung.h and is going to be used also by s3c* SoCs)?

Yes, it should. Thanks!

Best regards,
Krzysztof