linux-kernel - Re: [PATCH v2] pinctrl: at91: Enable slewrate by default on SAM9X60

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Date:   Sun, 3 Nov 2019 23:35:41 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
Cc:     Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: Re: [PATCH v2] pinctrl: at91: Enable slewrate by default on SAM9X60

On Fri, Nov 1, 2019 at 10:20 AM Codrin Ciubotariu
<codrin.ciubotariu@...rochip.com> wrote:

> On SAM9X60, slewrate should be enabled on pins with a switching frequency
> below 50Mhz. Since most of our pins do not exceed this value, we enable
> slewrate by default. Pins with a switching value that exceeds 50Mhz will
> have to explicitly disable slewrate.
>
> This patch changes the ABI. However, the slewrate macros are only used
> by SAM9X60 and, at this moment, there are no device-tree files available
> for this platform.
>
> Suggested-by: Ludovic Desroches <ludovic.desroches@...rochip.com>
> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
> ---
>
> Changes in v2:
>  - updated commit message to reflect the ABI change

Patch applied with the ACKs.

Yours,
Linus Walleij