linux-kernel - Re: [PATCH 08/24] ARM: dts: exynos: simplify PMIC DVS pin configuration in Peach Pi

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Message-ID: <CAGOxZ52PjcMD0hFQa95NHO2M5Z+Gpx4HNO14+KCsYnCffLc3JQ@mail.gmail.com>
Date:   Fri, 7 Jan 2022 00:17:39 +0530
From:   Alim Akhtar <alim.akhtar@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Tomasz Figa <tomasz.figa@...il.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Sylwester Nawrocki <snawrocki@...nel.org>,
        Sam Protsenko <semen.protsenko@...aro.org>,
        Chanho Park <chanho61.park@...sung.com>
Subject: Re: [PATCH 08/24] ARM: dts: exynos: simplify PMIC DVS pin
 configuration in Peach Pi

Hi Krzysztof,

On Sat, Jan 1, 2022 at 1:15 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...onical.com> wrote:
>
> The pin configuration for PMIC DVS (pmic-dvs-2 and pmic-dvs-3) are
> exactly the same, so merge them.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> ---
>  arch/arm/boot/dts/exynos5800-peach-pi.dts | 20 +++++++-------------
>  1 file changed, 7 insertions(+), 13 deletions(-)
>
> diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
> index 6bf3fd37fb2b..eca805b83816 100644
> --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
> +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
> @@ -221,7 +221,7 @@ max77802: pmic@9 {
>                 interrupts = <1 IRQ_TYPE_NONE>;
>                 pinctrl-names = "default";
>                 pinctrl-0 = <&max77802_irq>, <&pmic_selb>,
> -                           <&pmic_dvs_1>, <&pmic_dvs_2>, <&pmic_dvs_3>;
> +                           <&pmic_dvs_1>, <&pmic_dvs_2>;
>                 wakeup-source;
>                 reg = <0x9>;
>                 #clock-cells = <1>;
> @@ -874,26 +874,20 @@ &sd1_cmd {
>
>  &pinctrl_2 {
>         pmic_dvs_2: pmic-dvs-2 {
> -               samsung,pins = "gpj4-2";
> +               samsung,pins = "gpj4-2", "gpj4-3";
>                 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
>                 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
>                 samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
>         };
> +};
>
> -       pmic_dvs_3: pmic-dvs-3 {
> -               samsung,pins = "gpj4-3";
> -               samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
> -               samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> -               samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> -       };
> +/* pinctrl_3*/
> +/* Drive SPI lines at x2 for better integrity */
> +&spi2_bus {
> +       samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
>  };
>
Maybe move this spi2_bus part to patch #07 as the commit does not
mention this change.

>  &pinctrl_3 {
> -       /* Drive SPI lines at x2 for better integrity */
> -       spi2-bus {
> -               samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> -       };
> -
>         /* Drive SPI chip select at x2 for better integrity */
>         ec_spi_cs: ec-spi-cs {
>                 samsung,pins = "gpb1-2";
> --
> 2.32.0
>


-- 
Regards,
Alim