linux-kernel - Re: [PATCH 1/3] arm64: dts: meson-gxbb-wetek: fix HDMI in early boot

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Message-ID: <d9f6ec32-63eb-b19c-867f-1cd9b54bb0e3@baylibre.com>
Date:   Mon, 15 Nov 2021 10:24:43 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Christian Hewitt <christianshewitt@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...libre.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] arm64: dts: meson-gxbb-wetek: fix HDMI in early boot

On 12/10/2021 07:25, Christian Hewitt wrote:
> Mark the VDDIO_AO18 regulator always-on and set hdmi-supply for the hdmi_tx
> node to ensure HDMI is powered in the early stages of boot.
> 
> Fixes: fb72c03e0e32 ("ARM64: dts: meson-gxbb-wetek: add a wetek specific dtsi to cleanup hub and play2")
> 
> Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
> index a350fee1264d..8e2af986ceba 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
> @@ -64,6 +64,7 @@
>  		regulator-name = "VDDIO_AO18";
>  		regulator-min-microvolt = <1800000>;
>  		regulator-max-microvolt = <1800000>;
> +		regulator-always-on;
>  	};
>  
>  	vcc_3v3: regulator-vcc_3v3 {
> @@ -161,6 +162,7 @@
>  	status = "okay";
>  	pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
>  	pinctrl-names = "default";
> +	hdmi-supply = <&vddio_ao18>;
>  };
>  
>  &hdmi_tx_tmds_port {
> 

Reviewed-by: Neil Armstrong <narmstrong@...libre.com>