[PATCH v2 2/4] arm64: dts: qcom: sc7280: Add support for eDP panel on CRD

Sankeerth Billakanti
2022-02-08T15:19:31Z

Enable the eDP display panel support without HPD on sc7280 platform.

Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
---

Changes in v2:
- sort node references alphabetically
- improve readability
- move the pwm pinctrl to pwm node
- move the regulators to root
- define backlight power
- remove dummy regulator node
- cleanup pinctrl definitions

arch/arm64/boot/dts/qcom/sc7280-crd.dts | 122 ++++++++++++++++++++++++++++++++
arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 -
2 files changed, 122 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-crd.dts b/arch/arm64/boot/dts/qcom/sc7280-crd.dts
index e2efbdd..bff2707 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-crd.dts
@@ -21,6 +21,34 @@
chosen {
stdout-path = "serial0:115200n8";
};
+
+ backlight_power: backlight-power {
+ compatible = "regulator-fixed";
+ regulator-name = "backlight_power";
+
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ gpio = <&pm8350c_gpios 7 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&edp_bl_power>;
+ };
+
+ edp_power: edp-power {
+ compatible = "regulator-fixed";
+ regulator-name = "edp_power";
+
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&tlmm 80 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&edp_panel_power>;
+ };
};

&apps_rsc {
@@ -76,6 +104,42 @@ ap_ts_pen_1v8: &i2c13 {
};
};

+&edp_out {
+ remote-endpoint = <&edp_panel_in>;
+};
+
+&mdss {
+ status = "okay";
+};
+
+&mdss_edp {
+ status = "okay";
+
+ vdda-1p2-supply = <&vreg_l6b_1p2>;
+ vdda-0p9-supply = <&vreg_l10c_0p8>;
+};
+
+&mdss_edp_phy {
+ status = "okay";
+
+ vdda-1p2-supply = <&vreg_l6b_1p2>;
+ vdda-0p9-supply = <&vreg_l10c_0p8>;
+};
+
+&mdss_dp {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&dp_hot_plug_det>;
+ data-lanes = <0 1>;
+ vdda-1p2-supply = <&vreg_l6b_1p2>;
+ vdda-0p9-supply = <&vreg_l1b_0p8>;
+};
+
+&mdss_mdp {
+ status = "okay";
+};
+
&nvme_3v3_regulator {
gpio = <&tlmm 51 GPIO_ACTIVE_HIGH>;
};
@@ -84,7 +148,65 @@ ap_ts_pen_1v8: &i2c13 {
pins = "gpio51";
};

+&pm8350c_pwm {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&edp_bl_pwm>;
+};
+
+&pm8350c_gpios {
+ edp_bl_power: edp-bl-power {
+ pins = "gpio7";
+ function = "normal";
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+ bias-disable;
+ output-low;
+ };
+
+ edp_bl_pwm: edp-bl-pwm {
+ pins = "gpio8";
+ function = "func1";
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+ bias-disable;
+ output-low;
+ };
+};
+
+&soc {
+ edp_backlight: edp-backlight {
+ compatible = "pwm-backlight";
+
+ power-supply = <&backlight_power>;
+ pwms = <&pm8350c_pwm 3 65535>;
+ };
+
+ edp_panel: edp_panel {
+ compatible = "sharp,lq140m1jw46";
+
+ power-supply = <&edp_power>;
+ backlight = <&edp_backlight>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ edp_panel_in: endpoint {
+ remote-endpoint = <&edp_out>;
+ };
+ };
+ };
+ };
+};
+
&tlmm {
+ edp_panel_power: edp-panel-power {
+ pins = "gpio80";
+ function = "gpio";
+ bias-pull-down;
+ };
+
tp_int_odl: tp-int-odl {
pins = "gpio7";
function = "gpio";
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 3572399..f8fa716 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -3012,8 +3012,6 @@

mdss_edp: edp@aea0000 {
compatible = "qcom,sc7280-edp";
- pinctrl-names = "default";
- pinctrl-0 = <&edp_hot_plug_det>;

reg = <0 0xaea0000 0 0x200>,
<0 0xaea0200 0 0x200>,
--
2.7.4