Quoting Douglas Anderson (2022-03-25 08:11:05)
> The L2C rail on herobrine boards is intended to go to the audio
> codec. Let's override the 1.62V specified in the qcard.dtsi file to be
> 1.8V.
>
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
> ---
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
>
> arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> index dc17f2079695..c2075f3e7c4b 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> @@ -339,6 +339,16 @@ keyboard_backlight: keyboard-backlight {
> ts_avdd: &pp3300_left_in_mlb {};
> vreg_edp_3p3: &pp3300_left_in_mlb {};
>
> +/* Regulator overrides from Qcard */
This one isn't in ALL CAPS? :)
> +
> +/*
> + * Herobrine boards only use l2c to power an external audio codec (like
> + * alc5682) and we want that to be at 1.8V, not at some slightly lower voltage.
> + */
> +&vreg_l2c_1p8 {
> + regulator-min-microvolt = <1800000>;
> +};
> +
> /* ADDITIONS TO NODES DEFINED IN PARENT DEVICE TREE FILES */
