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From:   Chen-Yu Tsai <wenst@chromium.org>
Date:   Wed, 1 Sep 2021 12:35:43 +0800
Message-ID: <CAGXv+5HeNj2Ly-T1bWMvnYXv6nP-Q1kv+D9QEd+5u4xfNVibOg@mail.gmail.com>
Subject: Re: [PATCH v11 1/4] dt-bindings: pinctrl: mt8195: add rsel define
To:     Zhiyong Tao <zhiyong.tao@mediatek.com>
Cc:     Rob Herring <robh+dt@kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Sean Wang <sean.wang@kernel.org>,
        srv_heupstream <srv_heupstream@mediatek.com>,
        hui.liu@mediatek.com, Eddie Huang <eddie.huang@mediatek.com>,
        Light Hsieh <light.hsieh@mediatek.com>,
        Biao Huang <biao.huang@mediatek.com>,
        Hongzhou Yang <hongzhou.yang@mediatek.com>,
        Sean Wang <sean.wang@mediatek.com>,
        Seiya Wang <seiya.wang@mediatek.com>,
        Devicetree List <devicetree@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@lists.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@lists.infradead.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>
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On Mon, Aug 30, 2021 at 8:36 AM Zhiyong Tao <zhiyong.tao@mediatek.com> wrote:
>
> This patch adds rsel define for mt8195.
>
> Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
> ---
>  include/dt-bindings/pinctrl/mt65xx.h | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/include/dt-bindings/pinctrl/mt65xx.h b/include/dt-bindings/pinctrl/mt65xx.h
> index 7e16e58fe1f7..f5934abcd1bd 100644
> --- a/include/dt-bindings/pinctrl/mt65xx.h
> +++ b/include/dt-bindings/pinctrl/mt65xx.h
> @@ -16,6 +16,15 @@
>  #define MTK_PUPD_SET_R1R0_10 102
>  #define MTK_PUPD_SET_R1R0_11 103
>
> +#define MTK_PULL_SET_RSEL_000  200
> +#define MTK_PULL_SET_RSEL_001  201
> +#define MTK_PULL_SET_RSEL_010  202
> +#define MTK_PULL_SET_RSEL_011  203
> +#define MTK_PULL_SET_RSEL_100  204
> +#define MTK_PULL_SET_RSEL_101  205
> +#define MTK_PULL_SET_RSEL_110  206
> +#define MTK_PULL_SET_RSEL_111  207

Could you keep the spacing between constants tighter, or have no spacing
at all? Like having MTK_PULL_SET_RSEL_000 defined as 104 and so on. This
would reduce the chance of new macro values colliding with actual resistor
values set in the datasheets, plus a contiguous space would be easy to
rule as macros.

ChenYu

>  #define MTK_DRIVE_2mA  2
>  #define MTK_DRIVE_4mA  4
>  #define MTK_DRIVE_6mA  6
> --
> 2.18.0
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