From: Svyatoslav Ryhel <clamor95@gmail.com>
Date: Mon, 11 May 2026 07:48:54 +0000 (+0300)
Subject: ARM: tegra: grouper: Add support for front camera
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a5acde8adb4d4d921a004b8df995d50255253afa;p=thirdparty%2Fkernel%2Flinux.git

ARM: tegra: grouper: Add support for front camera

Add front camera video path.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-common.dtsi b/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-common.dtsi
index 15f53babdc217..892d718294dd1 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-common.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-common.dtsi
@@ -2,6 +2,7 @@
 
 #include <dt-bindings/input/gpio-keys.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/media/video-interfaces.h>
 #include <dt-bindings/power/summit,smb347-charger.h>
 #include <dt-bindings/thermal/thermal.h>
 
@@ -84,6 +85,93 @@
 		};
 	};
 
+	host1x@50000000 {
+		vi@54080000 {
+			status = "okay";
+
+			csi@800 {
+				status = "okay";
+
+				avdd-dsi-csi-supply = <&avdd_dsi_csi>;
+
+				/* CSI-A */
+				channel@0 {
+					reg = <0>;
+
+					nvidia,mipi-calibrate = <&csi 0>; /* CSIA pad */
+
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						csia_input: endpoint {
+							data-lanes = <1 2>;
+							/* No rear camera */
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						csia_output: endpoint {
+							remote-endpoint = <&vi_ppa_input>;
+						};
+					};
+				};
+
+				/* CSI-B */
+				channel@1 {
+					reg = <1>;
+
+					nvidia,mipi-calibrate = <&csi 1>; /* CSIB pad */
+
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						csib_input: endpoint {
+							data-lanes = <3>;
+							remote-endpoint = <&front_camera_output>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						csib_output: endpoint {
+							remote-endpoint = <&vi_ppb_input>;
+						};
+					};
+				};
+			};
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					vi_ppa_input: endpoint {
+						remote-endpoint = <&csia_output>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					vi_ppb_input: endpoint {
+						remote-endpoint = <&csib_output>;
+					};
+				};
+			};
+		};
+	};
+
 	pinmux@70000868 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&state_default>;
@@ -890,6 +978,36 @@
 			vdd-supply = <&vdd_3v3_sys>;
 		};
 
+		/* Aptina 1/6" HD SOC (MI1040) */
+		front-camera@48 {
+			compatible = "aptina,mi1040";
+			reg = <0x48>;
+
+			clocks = <&tegra_car TEGRA30_CLK_CSUS>;
+
+			reset-gpios = <&gpio TEGRA_GPIO(O, 0) GPIO_ACTIVE_LOW>;
+
+			vddio-supply = <&avdd_cam1>;
+			vdd-supply = <&vddio_cam>;
+			vaa-supply = <&avdd_cam1>;
+
+			orientation = <0>; /* Front camera */
+
+			assigned-clocks = <&tegra_car TEGRA30_CLK_VI_SENSOR>,
+					  <&tegra_car TEGRA30_CLK_CSUS>;
+			assigned-clock-rates = <24000000>;
+			assigned-clock-parents = <&tegra_car TEGRA30_CLK_PLL_P>,
+						 <&tegra_car TEGRA30_CLK_VI_SENSOR>;
+
+			port {
+				front_camera_output: endpoint {
+					bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
+					link-frequencies = /bits/ 64 <384000000>;
+					remote-endpoint = <&csib_input>;
+				};
+			};
+		};
+
 		accelerometer@68 {
 			compatible = "invensense,mpu6050";
 			reg = <0x68>;
@@ -1203,6 +1321,16 @@
 		vin-supply = <&vdd_5v0_sys>;
 	};
 
+	avdd_cam1: regulator-vcam1 {
+		compatible = "regulator-fixed";
+		regulator-name = "avdd_cam1";
+		regulator-min-microvolt = <2850000>;
+		regulator-max-microvolt = <2850000>;
+		gpio = <&gpio TEGRA_GPIO(R, 6) GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		vin-supply = <&vdd_5v0_sys>;
+	};
+
 	sound {
 		compatible = "nvidia,tegra-audio-rt5640-grouper",
 			     "nvidia,tegra-audio-rt5640";
diff --git a/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-maxim-pmic.dtsi b/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-maxim-pmic.dtsi
index 694c7fe37eb88..4bd98935031b4 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-maxim-pmic.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-maxim-pmic.dtsi
@@ -135,7 +135,7 @@
 					regulator-boot-on;
 				};
 
-				ldo5 {
+				vddio_cam: ldo5 {
 					regulator-name = "vdd_camera";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
@@ -149,7 +149,7 @@
 					regulator-boot-on;
 				};
 
-				ldo7 {
+				avdd_dsi_csi: ldo7 {
 					regulator-name = "avdd_dsi_csi";
 					regulator-min-microvolt = <1200000>;
 					regulator-max-microvolt = <1200000>;
diff --git a/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-ti-pmic.dtsi b/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-ti-pmic.dtsi
index ee4a3f4827690..8fe3c62c90520 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-ti-pmic.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra30-asus-nexus7-grouper-ti-pmic.dtsi
@@ -92,13 +92,13 @@
 					regulator-always-on;
 				};
 
-				ldo5 {
+				vddio_cam: ldo5 {
 					regulator-name = "vddio_sdmmc,avdd_vdac";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 				};
 
-				ldo6 {
+				avdd_dsi_csi: ldo6 {
 					regulator-name = "avdd_dsi_csi,pwrdet_mipi";
 					regulator-min-microvolt = <1200000>;
 					regulator-max-microvolt = <1200000>;