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

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Message-ID: <b9012927-b357-4875-9e8e-90df5cc8d8bb@quicinc.com>
Date: Tue, 23 Jan 2024 18:13:22 +0530
From: Ritesh Kumar <quic_riteshk@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
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 1/16/2024 3:28 PM, Dmitry Baryshkov wrote:

> 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?

This panel is always present on the IDP board.

>> 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
>>

Thanks,
Ritesh