On Sun, Sep 28, 2025 at 10:05:28PM -0700, Paul Sajna wrote:
> Also include other supporting msm drm nodes, including backlight
>
> Signed-off-by: Paul Sajna <sajattack@postmarketos.org>
> Co-developed-by: Amir Dahan <system64fumo@protonmail.com>
> Signed-off-by: Amir Dahan <system64fumo@protonmail.com>
> ---
> arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi | 8 +--
> arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts | 82 ++++++++++++++++++++++----
> 2 files changed, 73 insertions(+), 17 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
> index 2a612922ecf7ce3f8a0734cb1a31a8a81efdb4f2..aa338612433f9ac3b07363b79d8a3b8e0eedd98b 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
> @@ -461,10 +461,6 @@ &cdsp_pas {
> status = "okay";
> };
>
> -&dispcc {
> - status = "disabled";
> -};
> -
> &gcc {
> protected-clocks = <GCC_QSPI_CORE_CLK>,
> <GCC_QSPI_CORE_CLK_SRC>,
> @@ -532,6 +528,10 @@ led@5 {
> };
> };
>
> +&pmi8998_wled {
> + status = "okay";
> +};
> +
> &sdhc_2 {
> cd-gpios = <&tlmm 126 GPIO_ACTIVE_LOW>;
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> index df65b0e32b195d2f668883542cfcabbb9bde8204..f45eb1dfe55c562142092a4239758609fa3f2e47 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> @@ -13,19 +13,6 @@ / {
> model = "LG G7 ThinQ";
> compatible = "lg,judyln", "qcom,sdm845";
>
> - chosen {
> - framebuffer@9d400000 {
> - compatible = "simple-framebuffer";
> - reg = <0x0 0x9d400000 0x0 (1440 * 3120 * 4)>;
> - width = <1440>;
> - height = <3120>;
> - stride = <(1440 * 4)>;
> - format = "a8r8g8b8";
> - lab-supply = <&lab>;
> - ibb-supply = <&ibb>;
> - };
> - };
I think, you can keep simple-framebuffer. It will be used by the initial
booting and then will be replaced with the MDSS.
> -
> /* Additional ThinQ key */
> gpio-keys {
> pinctrl-0 = <&vol_up_pin_a &thinq_key_default>;
> @@ -61,6 +48,47 @@ zap-shader {
> };
> };
>
> +&mdss {
> + status = "okay";
> +};
> +
> +&mdss_dsi0 {
> + vdda-supply = <&vdda_mipi_dsi0_1p2>;
> +
> + status = "okay";
> +
> + display_panel: panel@0 {
You don't need this label
> + reg = <0>;
> + compatible = "lg,sw49410";
> +
> + backlight = <&pmi8998_wled>;
> + reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
> + width-mm = <65>;
> + height-mm = <140>;
> +
> + pinctrl-0 = <&sde_dsi_active &sde_te_active>;
> + pinctrl-1 = <&sde_dsi_sleep &sde_te_sleep>;
> + pinctrl-names = "default", "sleep";
> +
> + port {
> + panel_in: endpoint {
> + remote-endpoint = <&mdss_dsi0_out>;
> + };
> + };
> + };
> +};
> +
> +&mdss_dsi0_phy {
> + vdds-supply = <&vdda_mipi_dsi0_pll>;
> +
> + status = "okay";
> +};
> +
> +&mdss_dsi0_out {
'mdss_dsi0_out' < 'mdss_dsi0_phy'
> + remote-endpoint = <&panel_in>;
> + data-lanes = <0 1 2 3>;
> +};
> +
> &mss_pil {
> firmware-name = "qcom/sdm845/judyln/mba.mbn", "qcom/sdm845/judyln/modem.mbn";
> };
> @@ -78,6 +106,34 @@ thinq_key_default: thinq-key-default-state {
> drive-strength = <2>;
> bias-pull-up;
> };
> +
> + sde_dsi_active: sde-dsi-active-state {
Please keep these entries sorted out.
> + pins = "gpio6";
> + function = "gpio";
> + drive-strength = <8>;
> + bias-disable;
> + };
> +
> + sde_dsi_sleep: sde-dsi-sleep-state {
> + pins = "gpio6";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-pull-down;
> + };
> +
> + sde_te_active: sde-te-active-state {
> + pins = "gpio10";
> + function = "mdp_vsync";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + sde_te_sleep: sde-te-sleep-state {
> + pins = "gpio10";
> + function = "mdp_vsync";
> + drive-strength = <2>;
> + bias-pull-down;
> + };
> };
>
> &bluetooth {
>
> --
> 2.51.0
>
--
With best wishes
Dmitry