linux-kernel - Re: [PATCH v3 5/5] arm64: dts: meson-khadas-vim3: add Khadas MCU nodes

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Message-ID: <CAHLCerP+jEhZJs7yPmwPEm15FnrShJjNzOJ2UNcXVP5-WFbwVg@mail.gmail.com>
Date:   Wed, 17 Jun 2020 11:09:28 +0530
From:   Amit Kucheria <amit.kucheria@...durent.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     Kevin Hilman <khilman@...libre.com>,
        linux-amlogic@...ts.infradead.org,
        Linux PM list <linux-pm@...r.kernel.org>,
        lakml <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 5/5] arm64: dts: meson-khadas-vim3: add Khadas MCU nodes

On Mon, Jun 8, 2020 at 2:47 PM Neil Armstrong <narmstrong@...libre.com> wrote:
>
> Add the Khadas MCU node with active FAN thermal nodes for all the
> Khadas VIM3 variants.
>
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>

Reviewed-by: Amit Kucheria <amit.kucheria@...aro.org>


> ---
>  .../boot/dts/amlogic/meson-khadas-vim3.dtsi   | 23 +++++++++++++++++++
>  1 file changed, 23 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> index 094ecf2222bb..3325e54ea690 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> @@ -183,6 +183,23 @@
>         hdmi-phandle = <&hdmi_tx>;
>  };
>
> +&cpu_thermal {
> +       trips {
> +               cpu_active: cpu-active {
> +                       temperature = <80000>; /* millicelsius */
> +                       hysteresis = <2000>; /* millicelsius */
> +                       type = "active";
> +               };
> +       };
> +
> +       cooling-maps {
> +               map {
> +                       trip = <&cpu_active>;
> +                       cooling-device = <&khadas_mcu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> +               };
> +       };
> +};
> +
>  &ext_mdio {
>         external_phy: ethernet-phy@0 {
>                 /* Realtek RTL8211F (0x001cc916) */
> @@ -222,6 +239,12 @@
>         pinctrl-0 = <&i2c_ao_sck_pins>, <&i2c_ao_sda_pins>;
>         pinctrl-names = "default";
>
> +       khadas_mcu: system-controller@18 {
> +               compatible = "khadas,mcu";
> +               reg = <0x18>;
> +               #cooling-cells = <2>;
> +       };
> +
>         gpio_expander: gpio-controller@20 {
>                 compatible = "ti,tca6408";
>                 reg = <0x20>;
> --
> 2.22.0
>