linux-kernel - [PATCH v5 3/4] ARM: dts: qcom: msm8974-klte: add support for display

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon,  1 Feb 2021 12:56:56 +0200
From:   Iskren Chernev <iskren.chernev@...il.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Iskren Chernev <iskren.chernev@...il.com>,
        Samuel Pascua <pascua.samuel.14@...il.com>,
        Alexey Minnekhanov <alexeymin@...tmarketos.org>,
        Brian Masney <masneyb@...tation.org>,
        phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: [PATCH v5 3/4] ARM: dts: qcom: msm8974-klte: add support for display

From: Samuel Pascua <pascua.samuel.14@...il.com>

Add initial support for the display found on the Samsung Galaxy 5 (klte)
phone. This is based on work from Jonathan Marek & Brian Masney.

Signed-off-by: Samuel Pascua <pascua.samuel.14@...il.com>
[iskren.chernev@...il.com: add reset gpio, regulators]
Signed-off-by: Iskren Chernev <iskren.chernev@...il.com>
---
On downstream the panel uses a regulator and an enable pin, but it is hinted
that the enable pin is actually another regulator, so wrap the enable pin into
a regulator and put the two new regulator in the panel node.

 .../boot/dts/qcom-msm8974-samsung-klte.dts    | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
index 86be4ae743f4..d042c7cbab71 100644
--- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
@@ -298,6 +298,20 @@ vreg_wlan: wlan-regulator {
 		enable-active-high;
 	};
 
+	vreg_panel: panel-regulator {
+		compatible = "regulator-fixed";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&panel_en_pin>;
+
+		regulator-name = "panel-vddr-reg";
+		regulator-min-microvolt = <1500000>;
+		regulator-max-microvolt = <1500000>;
+
+		gpio = <&pma8084_gpios 14 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	/delete-node/ vreg-boost;
 };
 
@@ -453,6 +467,16 @@ int {
 				bias-pull-down;
 			};
 		};
+
+		panel_te_pin: panel {
+			te {
+				pins = "gpio12";
+				function = "mdp_vsync";
+
+				drive-strength = <2>;
+				bias-disable;
+			};
+		};
 	};
 
 	sdhc_1: sdhci@...24900 {
@@ -701,6 +725,60 @@ fuelgauge@36 {
 	adreno@...00000 {
 		status = "ok";
 	};
+
+	mdss@...00000 {
+		status = "ok";
+
+		mdp@...00000 {
+			status = "ok";
+		};
+
+		dsi@...22800 {
+			status = "ok";
+
+			vdda-supply = <&pma8084_l2>;
+			vdd-supply = <&pma8084_l22>;
+			vddio-supply = <&pma8084_l12>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ports {
+				port@1 {
+					endpoint {
+						remote-endpoint = <&panel_in>;
+						data-lanes = <0 1 2 3>;
+					};
+				};
+			};
+
+			panel: panel@0 {
+				reg = <0>;
+				compatible = "samsung,s6e3fa2";
+
+				pinctrl-names = "default";
+				pinctrl-0 = <&panel_te_pin &panel_rst_pin>;
+
+				iovdd-supply = <&pma8084_lvs4>;
+				vddr-supply = <&vreg_panel>;
+
+				reset-gpios = <&pma8084_gpios 17 GPIO_ACTIVE_LOW>;
+				te-gpios = <&msmgpio 12 GPIO_ACTIVE_HIGH>;
+
+				port {
+					panel_in: endpoint {
+						remote-endpoint = <&dsi0_out>;
+					};
+				};
+			};
+		};
+
+		dsi-phy@...22a00 {
+			status = "ok";
+
+			vddio-supply = <&pma8084_l12>;
+		};
+	};
 };
 
 &spmi_bus {
@@ -730,6 +808,14 @@ touch_pin: touchscreen-int-pin {
 				power-source = <PMA8084_GPIO_S4>;
 			};
 
+			panel_en_pin: panel-en-pin {
+				pins = "gpio14";
+				function = "normal";
+				bias-pull-up;
+				power-source = <PMA8084_GPIO_S4>;
+				qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+			};
+
 			wlan_sleep_clk_pin: wlan-sleep-clk-pin {
 				pins = "gpio16";
 				function = "func2";
@@ -739,6 +825,15 @@ wlan_sleep_clk_pin: wlan-sleep-clk-pin {
 				qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
 			};
 
+			panel_rst_pin: panel-rst-pin {
+				pins = "gpio17";
+				function = "normal";
+				bias-disable;
+				power-source = <PMA8084_GPIO_S4>;
+				qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+			};
+
+
 			fuelgauge_pin: fuelgauge-int-pin {
 				pins = "gpio21";
 				function = "normal";
-- 
2.30.0