linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: qcm6490-idp: add display and panel

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Message-ID: <CAA8EJpp3WJ8132aB-tyzJPXsdczvQC+TvKemm9NvUNYNrEntow@mail.gmail.com>
Date: Tue, 16 Jan 2024 11:58:17 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Ritesh Kumar <quic_riteshk@...cinc.com>
Cc: andersson@...nel.org, konrad.dybcio@...aro.org, robh+dt@...nel.org, 
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, 
	catalin.marinas@....com, will@...nel.org, quic_bjorande@...cinc.com, 
	geert+renesas@...der.be, arnd@...db.de, neil.armstrong@...aro.org, 
	nfraprado@...labora.com, m.szyprowski@...sung.com, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	quic_abhinavk@...cinc.com, quic_rajeevny@...cinc.com, 
	quic_vproddut@...cinc.com
Subject: Re: [PATCH 2/2] arm64: dts: qcom: qcm6490-idp: add display and panel

On Tue, 16 Jan 2024 at 11:49, Ritesh Kumar <quic_riteshk@...cinc.com> wrote:
>
> Enable Display Subsystem with Novatek NT36672E Panel
> on qcm6490 idp platform.

Is this panel always present on the IDP board or is it an optional
addon, like the panels for all the RBn boards?

>
> Signed-off-by: Ritesh Kumar <quic_riteshk@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/qcm6490-idp.dts | 100 +++++++++++++++++++++++
>  1 file changed, 100 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
> index 2a6e4907c5ee..efa5252130a1 100644
> --- a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
> +++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
> @@ -9,6 +9,7 @@
>  #define PM7250B_SID 8
>  #define PM7250B_SID1 9
>
> +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>  #include "sc7280.dtsi"
>  #include "pm7250b.dtsi"
> @@ -38,6 +39,25 @@
>                 stdout-path = "serial0:115200n8";
>         };
>
> +       lcd_disp_bias: lcd-disp-bias-regulator {
> +               compatible = "regulator-fixed";
> +               regulator-name = "lcd_disp_bias";
> +               regulator-min-microvolt = <5500000>;
> +               regulator-max-microvolt = <5500000>;
> +               gpio = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
> +               enable-active-high;
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&lcd_disp_bias_en>;
> +       };
> +
> +       pm8350c_pwm_backlight: backlight {
> +               compatible = "pwm-backlight";
> +               pwms = <&pm8350c_pwm 3 65535>;
> +               enable-gpios = <&pm8350c_gpios 7 GPIO_ACTIVE_HIGH>;
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&pmic_lcd_bl_en>;
> +       };
> +
>         reserved-memory {
>                 xbl_mem: xbl@...00000 {
>                         reg = <0x0 0x80700000 0x0 0x100000>;
> @@ -420,6 +440,86 @@
>         };
>  };
>
> +&gpu {
> +       status = "disabled";
> +};
> +
> +&mdss {
> +       status = "okay";
> +};
> +
> +&mdss_dsi {
> +       vdda-supply = <&vreg_l6b_1p2>;
> +       status = "okay";
> +
> +       panel@0 {
> +               compatible = "novatek,nt36672e";
> +               reg = <0>;
> +
> +               reset-gpios = <&tlmm 44 GPIO_ACTIVE_HIGH>;
> +
> +               vddi-supply = <&vreg_l8c_1p62>;
> +               avdd-supply = <&lcd_disp_bias>;
> +               avee-supply = <&lcd_disp_bias>;
> +
> +               backlight = <&pm8350c_pwm_backlight>;
> +
> +               port {
> +                       panel0_in: endpoint {
> +                               remote-endpoint = <&mdss_dsi0_out>;
> +                       };
> +               };
> +       };
> +};
> +
> +&mdss_dsi0_out {
> +       remote-endpoint = <&panel0_in>;
> +       data-lanes = <0 1 2 3>;
> +};
> +
> +&mdss_dsi_phy {
> +       vdds-supply = <&vreg_l10c_0p88>;
> +       status = "okay";
> +};
> +
> +&pm7250b_gpios {
> +       lcd_disp_bias_en: lcd-disp-bias-en-state {
> +               pins = "gpio2";
> +               function = "func1";
> +               bias-disable;
> +               qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
> +               input-disable;
> +               output-enable;
> +               power-source = <0>;
> +       };
> +};
> +
> +&pm8350c_gpios {
> +       pmic_lcd_bl_en: pmic-lcd-bl-en-state {
> +               pins = "gpio7";
> +               function = "normal";
> +               bias-disable;
> +               qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
> +               output-low;
> +               power-source = <0>;
> +       };
> +
> +       pmic_lcd_bl_pwm: pmic-lcd-bl-pwm-state {
> +               pins = "gpio8";
> +               function = "func1";
> +               bias-disable;
> +               qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
> +               output-low;
> +               power-source = <0>;
> +       };
> +};
> +
> +&pm8350c_pwm {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pmic_lcd_bl_pwm>;
> +       status = "okay";
> +};
> +
>  &qupv3_id_0 {
>         status = "okay";
>  };
> --
> 2.17.1
>


-- 
With best wishes
Dmitry