[PATCH v2 0/4] ARM: tegra: lg-x3: add missing nodes

[PATCH v2 0/4] ARM: tegra: lg-x3: add missing nodes

[Svyatoslav Ryhel]

With the recent kernel updates, Tegra30-based LG smartphones now support
several additional features, including an RGB-DSI bridge, DSI panels,
MUIC, a charger, a battery temperature sensor, OTG mode, and capacitive
buttons on the P895. Add required nodes to device trees.

---
Changes in v2:
- fixed dw9714 and tx13d100vm0eaa nodes
- added video device pipes graph

Regarding CHECK_DTBS output in v2:
- nvidia,tegra30-pcie, nvidia,tegra30-gmi, nvidia,tegra30-kbc,
  nvidia,tegra20-kbc, nvidia,tegra30-ahub are not documented yet
- nvidia,tegra30-vi was adjusted and applied, change did not apper yet
  (https://lore.kernel.org/lkml/176860988748.1688420.11717122647073678.b4-ty@nvidia.com/)
- st,m24c08 appers undocumented though it seems to be different from
  st,24c08, at least they google as separate devices. atmel,24c08 is not
  documented, though it is widey used in linux device trees and is
  supported by driver. Here is one of examples:
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm/boot/dts/allwinner/sun7i-a20-linutronix-testbox-v2.dts?h=next-20260123#n33
- onnn,mt9m114 does not have 'orientation' property, though it should
  include it since it is generic for camera devices
- ti,lp8720 and maxim,max77663 have txt documentation and are not yet
  converted to DT schema
- backlight in panel nodes was not added since lm3533 has no DT support
- missing '#io-channel-cells' in ti,tsc2007 addressed in
  https://lore.kernel.org/lkml/20260122193549.29858-2-clamor95@gmail.com/
- missing dsi controller properties of ssd2825 addressed in
  https://lore.kernel.org/lkml/20260123073411.7736-2-clamor95@gmail.com/
- missing '#io-channel-cells' in generic-adc-thermal was proposed in but rejected
  https://lore.kernel.org/lkml/20250310075638.6979-2-clamor95@gmail.com/
---

Svyatoslav Ryhel (4):
  ARM: tegra: lg-x3: add panel and bridge nodes
  ARM: tegra: lg-x3: add USB and power related nodes
  ARM: tegra: lg-x3: add node for capacitive buttons
  ARM: tegra: lg-x3: complete video device graph

 arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts |  39 +++
 arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts |  79 +++++
 arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi  | 328 ++++++++++++++++++-
 3 files changed, 429 insertions(+), 17 deletions(-)

-- 
2.51.0

[PATCH v2 1/4] ARM: tegra: lg-x3: add panel and bridge nodes

[Svyatoslav Ryhel]

Add RGB-DSI bridge and panel nodes to LG Optimus 4X and Vu device trees.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
 arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts | 23 ++++++
 arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts | 27 +++++++
 arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi  | 81 +++++++++++++++++++-
 3 files changed, 130 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts b/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
index c6ef0a20c19f..cc14e6dca770 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
@@ -116,6 +116,29 @@ rmi4-f11@11 {
 		};
 	};
 
+	spi@7000dc00 {
+		dsi@2 {
+			/*
+			 * JDI 4.57" 720x1280 DX12D100VM0EAA MIPI DSI panel
+			 */
+			panel@1 {
+				compatible = "jdi,dx12d100vm0eaa", "renesas,r69328";
+				reg = <1>;
+
+				reset-gpios = <&gpio TEGRA_GPIO(W, 0) GPIO_ACTIVE_LOW>;
+
+				vdd-supply = <&vcc_3v0_lcd>;
+				vddio-supply = <&iovcc_1v8_lcd>;
+
+				port {
+					panel_input: endpoint {
+						remote-endpoint = <&bridge_output>;
+					};
+				};
+			};
+		};
+	};
+
 	memory-controller@7000f000 {
 		emc-timings-0 {
 			/* SAMSUNG 1GB K4P8G304EB FGC1 533MHz */
diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts b/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
index e32fafc7f5e0..ab8f5cf317bf 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
@@ -112,6 +112,33 @@ rmi4-f11@11 {
 		};
 	};
 
+	spi@7000dc00 {
+		dsi@2 {
+			/*
+			 * HITACHI/KOE 5" 768x1024 TX13D100VM0EAA MIPI DSI panel
+			 */
+			panel@1 {
+				compatible = "koe,tx13d100vm0eaa", "renesas,r61307";
+				reg = <1>;
+
+				reset-gpios = <&gpio TEGRA_GPIO(W, 0) GPIO_ACTIVE_LOW>;
+
+				renesas,gamma = <3>;
+				renesas,column-inversion;
+				renesas,contrast;
+
+				vcc-supply = <&vcc_3v0_lcd>;
+				iovcc-supply = <&iovcc_1v8_lcd>;
+
+				port {
+					panel_input: endpoint {
+						remote-endpoint = <&bridge_output>;
+					};
+				};
+			};
+		};
+	};
+
 	memory-controller@7000f000 {
 		emc-timings-2 {
 			/* Hynix 1GB H9TCNNN8JDMMPR LPDDR2 533MHz */
diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi b/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
index 909260a5d0fb..6eea8eacd7d5 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
@@ -20,6 +20,8 @@ aliases {
 		rtc0 = &pmic;
 		rtc1 = "/rtc@7000e000";
 
+		display0 = &lcd;
+
 		serial0 = &uartd; /* Console */
 		serial1 = &uartc; /* Bluetooth */
 		serial2 = &uartb; /* GPS */
@@ -71,6 +73,21 @@ trustzone@bfe00000 {
 		};
 	};
 
+	host1x@50000000 {
+		lcd: dc@54200000 {
+			rgb {
+				status = "okay";
+
+				port {
+					dpi_output: endpoint {
+						remote-endpoint = <&bridge_input>;
+						bus-width = <24>;
+					};
+				};
+			};
+		};
+	};
+
 	vde@6001a000 {
 		assigned-clocks = <&tegra_car TEGRA30_CLK_VDE>;
 		assigned-clock-parents = <&tegra_car TEGRA30_CLK_PLL_P>;
@@ -1357,7 +1374,58 @@ spi@7000dc00 {
 		status = "okay";
 		spi-max-frequency = <25000000>;
 
-		/* DSI bridge */
+		dsi@2 {
+			compatible = "solomon,ssd2825";
+			reg = <2>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			spi-max-frequency = <1000000>;
+
+			spi-cpha;
+			spi-cpol;
+
+			reset-gpios = <&gpio TEGRA_GPIO(O, 2) GPIO_ACTIVE_LOW>;
+
+			dvdd-supply = <&vdd_1v2_rgb>;
+			avdd-supply = <&vdd_1v2_rgb>;
+			vddio-supply = <&vdd_1v8_vio>;
+
+			solomon,hs-zero-delay-ns = <300>;
+			solomon,hs-prep-delay-ns = <65>;
+
+			clocks = <&tegra_pmc TEGRA_PMC_CLK_OUT_3>;
+
+			assigned-clocks = <&tegra_car TEGRA30_CLK_EXTERN3>,
+					  <&tegra_pmc TEGRA_PMC_CLK_OUT_3>;
+			assigned-clock-rates = <24000000>;
+
+			assigned-clock-parents = <&tegra_car TEGRA30_CLK_PLL_P>,
+						 <&tegra_car TEGRA30_CLK_EXTERN3>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					bridge_input: endpoint {
+						remote-endpoint = <&dpi_output>;
+						bus-width = <24>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					bridge_output: endpoint {
+						remote-endpoint = <&panel_input>;
+					};
+				};
+			};
+		};
 	};
 
 	pmc@7000e400 {
@@ -1617,6 +1685,17 @@ vdd_1v8_sen: regulator-sen1v8 {
 		vin-supply = <&vdd_3v3_vbat>;
 	};
 
+	vdd_1v2_rgb: regulator-rgb1v2 {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_1v2_rgb";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-boot-on;
+		gpio = <&gpio TEGRA_GPIO(B, 1) GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		vin-supply = <&vdd_3v3_vbat>;
+	};
+
 	vcc_3v0_lcd: regulator-lcd3v {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_3v0_lcd";
-- 
2.51.0

[PATCH v2 2/4] ARM: tegra: lg-x3: add USB and power related nodes

[Svyatoslav Ryhel]

Add missing charger, MUIC and ADC sensor nodes. Reconfigure USB, set one
of the ADC channels as the fuel gauge temperature sensor and add a battery
thermal zone.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
 arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi | 93 ++++++++++++++++++++-
 1 file changed, 91 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi b/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
index 6eea8eacd7d5..768e201456d8 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
@@ -1070,6 +1070,38 @@ rmi4-f11@11 {
 				syna,clip-y-low = <0>;
 			};
 		};
+
+		max14526: muic@44 {
+			compatible = "maxim,max14526";
+			reg = <0x44>;
+
+			interrupt-parent = <&gpio>;
+			interrupts = <TEGRA_GPIO(J, 0) IRQ_TYPE_EDGE_FALLING>;
+
+			muic_con: connector {
+				compatible = "usb-b-connector";
+				label = "micro-USB";
+				type = "micro";
+			};
+
+			port {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				muic_to_charger: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&charger_input>;
+				};
+			};
+		};
+
+		tsc2007: adc@48 {
+			compatible = "ti,tsc2007";
+			reg = <0x48>;
+
+			ti,x-plate-ohms = <1>;
+			#io-channel-cells = <1>;
+		};
 	};
 
 	cam_i2c: i2c@7000c500 {
@@ -1326,6 +1358,22 @@ ldo8 {
 			};
 		};
 
+		max8971: charger@35 {
+			compatible = "maxim,max8971";
+			reg = <0x35>;
+
+			interrupt-parent = <&gpio>;
+			interrupts = <TEGRA_GPIO(J, 2) IRQ_TYPE_LEVEL_LOW>;
+
+			monitored-battery = <&battery>;
+
+			port {
+				charger_input: endpoint {
+					remote-endpoint = <&muic_to_charger>;
+				};
+			};
+		};
+
 		fuel-gauge@36 {
 			compatible = "maxim,max17043";
 			reg = <0x36>;
@@ -1334,6 +1382,10 @@ fuel-gauge@36 {
 			interrupts = <TEGRA_GPIO(S, 0) IRQ_TYPE_EDGE_FALLING>;
 
 			monitored-battery = <&battery>;
+			power-supplies = <&max8971>;
+
+			io-channels = <&tbattery 0>;
+			io-channel-names = "temp";
 
 			maxim,alert-low-soc-level = <10>;
 			wakeup-source;
@@ -1514,12 +1566,13 @@ sdmmc4: mmc@78000600 {
 	usb@7d000000 {
 		compatible = "nvidia,tegra30-udc";
 		status = "okay";
-		dr_mode = "peripheral";
+		dr_mode = "otg";
+		extcon = <&max14526>, <&max14526>;
 	};
 
 	usb-phy@7d000000 {
 		status = "okay";
-		dr_mode = "peripheral";
+		dr_mode = "otg";
 		nvidia,hssync-start-delay = <0>;
 		nvidia,xcvr-lsfslew = <2>;
 		nvidia,xcvr-lsrslew = <2>;
@@ -1803,7 +1856,43 @@ sound {
 					 <&tegra_car TEGRA30_CLK_EXTERN1>;
 	};
 
+	tbattery: thermal-sensor-battery {
+		compatible = "generic-adc-thermal";
+		#thermal-sensor-cells = <0>;
+
+		io-channels = <&tsc2007 4>;
+		io-channel-names = "sensor-channel";
+		#io-channel-cells = <1>;
+
+		temperature-lookup-table = <
+			(-50000) 4100 (-40000) 3980 (-30000) 3815 (-20000) 3610
+			(-10000) 3285        0 2880    10000 2445    20000 1955
+			   30000 1440    40000 1125    50000  840    60000  665
+			   70000  465    80000  350    90000  230   100000  185 >;
+	};
+
 	thermal-zones {
+		battery-thermal {
+			polling-delay-passive = <0>; /* milliseconds */
+			polling-delay = <20000>; /* milliseconds */
+
+			thermal-sensors = <&tbattery>;
+
+			trips {
+				battery-alert {
+					temperature = <55000>;
+					hysteresis = <2000>;
+					type = "hot";
+				};
+
+				battery-crit {
+					temperature = <60000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+		};
+
 		/*
 		 * NCT72 has two sensors:
 		 *
-- 
2.51.0

[PATCH v2 3/4] ARM: tegra: lg-x3: add node for capacitive buttons

[Svyatoslav Ryhel]

Both smartphones have capacitive buttons but only P895 supports RMI4
function 1A (0D touch), while P880 exposes buttons area as a region of the
touchscreen.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
 arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts b/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
index ab8f5cf317bf..414117fd4382 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
@@ -109,6 +109,12 @@ rmi4-f11@11 {
 				syna,clip-x-high = <1535>;
 				syna,clip-y-high = <2047>;
 			};
+
+			rmi4-f1a@1a {
+				reg = <0x1a>;
+
+				linux,keycodes = <KEY_BACK KEY_HOME KEY_MENU KEY_SEARCH>;
+			};
 		};
 	};
 
-- 
2.51.0

[PATCH v2 4/4] ARM: tegra: lg-x3: complete video device graph

[Svyatoslav Ryhel]

Add front and rear camera nodes and interlink them with Tegra CSI and VI.
Adjust camera PMIC voltages to better fit requirements and fix the focuser
node.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
 arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts |  28 ++++
 arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts |  46 ++++++
 arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi  | 154 +++++++++++++++++--
 3 files changed, 214 insertions(+), 14 deletions(-)

diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts b/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
index cc14e6dca770..1b21d7628c8c 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
@@ -12,6 +12,18 @@ aliases {
 		mmc2 = &sdmmc1; /* WiFi */
 	};
 
+	host1x@50000000 {
+		vi@54080000 {
+			csi@800 {
+				/delete-node/ channel@1;
+			};
+
+			ports {
+				/delete-node/ port@1;
+			};
+		};
+	};
+
 	pinmux@70000868 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&state_default>;
@@ -116,6 +128,22 @@ rmi4-f11@11 {
 		};
 	};
 
+	i2c@7000c500 {
+		camera-pmic@7d {
+			vt_1v2_front: ldo1 {
+				regulator-name = "vt_1v2_dig";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			vt_2v7_front: ldo2 {
+				regulator-name = "vt_2v7_vana";
+				regulator-min-microvolt = <2700000>;
+				regulator-max-microvolt = <2700000>;
+			};
+		};
+	};
+
 	spi@7000dc00 {
 		dsi@2 {
 			/*
diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts b/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
index 414117fd4382..896639599c12 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
@@ -118,6 +118,52 @@ rmi4-f1a@1a {
 		};
 	};
 
+	i2c@7000c500 {
+		/* Aptina 1/6" HD SOC (MT9M114) */
+		front-camera@48 {
+			compatible = "onnn,mt9m114";
+			reg = <0x48>;
+
+			clocks = <&tegra_car TEGRA30_CLK_CSUS>;
+
+			reset-gpios = <&gpio TEGRA_GPIO(BB, 5) GPIO_ACTIVE_LOW>;
+
+			vddio-supply = <&vio_1v8_front>;
+			vdd-supply = <&vt_1v8_front>;
+			vaa-supply = <&vt_2v8_front>;
+
+			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>;
+				};
+			};
+		};
+
+		camera-pmic@7d {
+			vt_1v8_front: ldo1 {
+				regulator-name = "vt_1v8_dig";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			vt_2v8_front: ldo2 {
+				regulator-name = "vt_2v8_vana";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+		};
+	};
+
 	spi@7000dc00 {
 		dsi@2 {
 			/*
diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi b/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
index 768e201456d8..178e4bb153d3 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
@@ -3,6 +3,7 @@
 #include <dt-bindings/input/gpio-keys.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/media/video-interfaces.h>
 #include <dt-bindings/mfd/max77620.h>
 #include <dt-bindings/thermal/thermal.h>
 
@@ -74,6 +75,91 @@ trustzone@bfe00000 {
 	};
 
 	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>;
+							remote-endpoint = <&rear_camera_output>;
+						};
+					};
+
+					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>;
+					};
+				};
+			};
+		};
+
 		lcd: dc@54200000 {
 			rgb {
 				status = "okay";
@@ -1112,29 +1198,68 @@ dw9714: coil@c {
 			compatible = "dongwoon,dw9714";
 			reg = <0x0c>;
 
-			enable-gpios = <&gpio TEGRA_GPIO(R, 1) GPIO_ACTIVE_HIGH>;
+			powerdown-gpios = <&gpio TEGRA_GPIO(R, 1) GPIO_ACTIVE_LOW>;
 
 			vcc-supply = <&vcc_focuser>;
 		};
 
+		/* SONY IMX111 1/4" BSI */
+		rear-camera@10 {
+			compatible = "sony,imx111";
+			reg = <0x10>;
+
+			clocks = <&tegra_car TEGRA30_CLK_CSUS>;
+
+			reset-gpios = <&gpio TEGRA_GPIO(K, 4) GPIO_ACTIVE_LOW>;
+
+			iovdd-supply = <&vio_1v8_rear>;
+			dvdd-supply = <&vdd_1v2_rear>;
+			avdd-supply = <&vdd_2v7_rear>;
+
+			orientation = <1>; /* Rear camera */
+			rotation = <90>;
+
+			nvmem = <&m24c08>;
+			lens-focus = <&dw9714>;
+
+			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 {
+				rear_camera_output: endpoint {
+					data-lanes = <1 2>;
+					bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
+					link-frequencies = /bits/ 64 <542400000>;
+					remote-endpoint = <&csia_input>;
+				};
+			};
+		};
+
+		/* rear camera sensor eeprom */
+		m24c08: eeprom@50 {
+			compatible = "st,m24c08", "atmel,24c08";
+			reg = <0x50>;
+
+			/* if high then WP is on, if low then off */
+			wp-gpios = <&gpio TEGRA_GPIO(K, 3) GPIO_ACTIVE_HIGH>;
+
+			/* it is not OTP but writing is unwanted */
+			read-only;
+			pagesize = <16>;
+			num-addresses = <1>;
+
+			vcc-supply = <&vio_1v8_rear>;
+		};
+
 		camera-pmic@7d {
 			compatible = "ti,lp8720";
 			reg = <0x7d>;
 
 			enable-gpios = <&gpio TEGRA_GPIO(BB, 4) GPIO_ACTIVE_HIGH>;
 
-			vt_1v2_front: ldo1 {
-				regulator-name = "vt_1v2_dig";
-				regulator-min-microvolt = <1200000>;
-				regulator-max-microvolt = <1200000>;
-			};
-
-			vt_2v7_front: ldo2 {
-				regulator-name = "vt_2v7_vana";
-				regulator-min-microvolt = <2700000>;
-				regulator-max-microvolt = <2700000>;
-			};
-
 			vdd_2v7_rear: ldo3 {
 				regulator-name = "8m_2v7_vana";
 				regulator-min-microvolt = <2700000>;
@@ -1348,10 +1473,11 @@ vdd_1v2_mhl: ldo7 {
 					maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;
 				};
 
-				ldo8 {
+				avdd_dsi_csi: ldo8 {
 					regulator-name = "avdd_dsi_csi";
 					regulator-min-microvolt = <1200000>;
 					regulator-max-microvolt = <1200000>;
+					regulator-boot-on;
 
 					maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;
 				};
-- 
2.51.0

Re: [PATCH v2 0/4] ARM: tegra: lg-x3: add missing nodes

[Svyatoslav Ryhel]

пн, 26 січ. 2026 р. о 12:15 Svyatoslav Ryhel <clamor95@gmail.com> пише:
>
> With the recent kernel updates, Tegra30-based LG smartphones now support
> several additional features, including an RGB-DSI bridge, DSI panels,
> MUIC, a charger, a battery temperature sensor, OTG mode, and capacitive
> buttons on the P895. Add required nodes to device trees.
>
> ---
> Changes in v2:
> - fixed dw9714 and tx13d100vm0eaa nodes
> - added video device pipes graph
>
> Regarding CHECK_DTBS output in v2:
> - nvidia,tegra30-pcie, nvidia,tegra30-gmi, nvidia,tegra30-kbc,
>   nvidia,tegra20-kbc, nvidia,tegra30-ahub are not documented yet
> - nvidia,tegra30-vi was adjusted and applied, change did not apper yet
>   (https://lore.kernel.org/lkml/176860988748.1688420.11717122647073678.b4-ty@nvidia.com/)
> - st,m24c08 appers undocumented though it seems to be different from
>   st,24c08, at least they google as separate devices. atmel,24c08 is not
>   documented, though it is widey used in linux device trees and is
>   supported by driver. Here is one of examples:
>   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm/boot/dts/allwinner/sun7i-a20-linutronix-testbox-v2.dts?h=next-20260123#n33
> - onnn,mt9m114 does not have 'orientation' property, though it should
>   include it since it is generic for camera devices
> - ti,lp8720 and maxim,max77663 have txt documentation and are not yet
>   converted to DT schema
> - backlight in panel nodes was not added since lm3533 has no DT support
> - missing '#io-channel-cells' in ti,tsc2007 addressed in
>   https://lore.kernel.org/lkml/20260122193549.29858-2-clamor95@gmail.com/
> - missing dsi controller properties of ssd2825 addressed in
>   https://lore.kernel.org/lkml/20260123073411.7736-2-clamor95@gmail.com/
> - missing '#io-channel-cells' in generic-adc-thermal was proposed in but rejected
>   https://lore.kernel.org/lkml/20250310075638.6979-2-clamor95@gmail.com/
> ---
>
> Svyatoslav Ryhel (4):
>   ARM: tegra: lg-x3: add panel and bridge nodes
>   ARM: tegra: lg-x3: add USB and power related nodes
>   ARM: tegra: lg-x3: add node for capacitive buttons
>   ARM: tegra: lg-x3: complete video device graph
>
>  arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts |  39 +++
>  arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts |  79 +++++
>  arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi  | 328 ++++++++++++++++++-
>  3 files changed, 429 insertions(+), 17 deletions(-)
>

Hello Thierry!

May these patches be picked if everyone is fine with them?

Best regards,
Svyatoslav R.

> --
> 2.51.0
>

Re: [PATCH v2 0/4] ARM: tegra: lg-x3: add missing nodes

[Thierry Reding]

[-- Attachment #1: Type: text/plain, Size: 2820 bytes --]

On Mon, Jan 26, 2026 at 12:10:14PM +0200, Svyatoslav Ryhel wrote:
> With the recent kernel updates, Tegra30-based LG smartphones now support
> several additional features, including an RGB-DSI bridge, DSI panels,
> MUIC, a charger, a battery temperature sensor, OTG mode, and capacitive
> buttons on the P895. Add required nodes to device trees.
> 
> ---
> Changes in v2:
> - fixed dw9714 and tx13d100vm0eaa nodes
> - added video device pipes graph
> 
> Regarding CHECK_DTBS output in v2:
> - nvidia,tegra30-pcie, nvidia,tegra30-gmi, nvidia,tegra30-kbc,
>   nvidia,tegra20-kbc, nvidia,tegra30-ahub are not documented yet
> - nvidia,tegra30-vi was adjusted and applied, change did not apper yet
>   (https://lore.kernel.org/lkml/176860988748.1688420.11717122647073678.b4-ty@nvidia.com/)
> - st,m24c08 appers undocumented though it seems to be different from
>   st,24c08, at least they google as separate devices. atmel,24c08 is not
>   documented, though it is widey used in linux device trees and is
>   supported by driver. Here is one of examples:
>   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm/boot/dts/allwinner/sun7i-a20-linutronix-testbox-v2.dts?h=next-20260123#n33
> - onnn,mt9m114 does not have 'orientation' property, though it should
>   include it since it is generic for camera devices
> - ti,lp8720 and maxim,max77663 have txt documentation and are not yet
>   converted to DT schema
> - backlight in panel nodes was not added since lm3533 has no DT support
> - missing '#io-channel-cells' in ti,tsc2007 addressed in
>   https://lore.kernel.org/lkml/20260122193549.29858-2-clamor95@gmail.com/
> - missing dsi controller properties of ssd2825 addressed in
>   https://lore.kernel.org/lkml/20260123073411.7736-2-clamor95@gmail.com/
> - missing '#io-channel-cells' in generic-adc-thermal was proposed in but rejected
>   https://lore.kernel.org/lkml/20250310075638.6979-2-clamor95@gmail.com/
> ---
> 
> Svyatoslav Ryhel (4):
>   ARM: tegra: lg-x3: add panel and bridge nodes
>   ARM: tegra: lg-x3: add USB and power related nodes
>   ARM: tegra: lg-x3: add node for capacitive buttons
>   ARM: tegra: lg-x3: complete video device graph
> 
>  arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts |  39 +++
>  arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts |  79 +++++
>  arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi  | 328 ++++++++++++++++++-
>  3 files changed, 429 insertions(+), 17 deletions(-)

Patches 1-3 applied. Patch 4 has checkpatch has checkpatch warnings:

	WARNING: DT compatible string "st,m24c08" appears un-documented -- check ./Documentation/devicetree/bindings/
	#255: FILE: arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi:1243:
	+			compatible = "st,m24c08", "atmel,24c08";

So I've left it out for now.

Thierry

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Re: [PATCH v2 0/4] ARM: tegra: lg-x3: add missing nodes

[Svyatoslav Ryhel]

27 березня 2026 р. 17:05:34 GMT+02:00, Thierry Reding <thierry.reding@kernel.org> пише:
>On Mon, Jan 26, 2026 at 12:10:14PM +0200, Svyatoslav Ryhel wrote:
>> With the recent kernel updates, Tegra30-based LG smartphones now support
>> several additional features, including an RGB-DSI bridge, DSI panels,
>> MUIC, a charger, a battery temperature sensor, OTG mode, and capacitive
>> buttons on the P895. Add required nodes to device trees.
>> 
>> ---
>> Changes in v2:
>> - fixed dw9714 and tx13d100vm0eaa nodes
>> - added video device pipes graph
>> 
>> Regarding CHECK_DTBS output in v2:
>> - nvidia,tegra30-pcie, nvidia,tegra30-gmi, nvidia,tegra30-kbc,
>>   nvidia,tegra20-kbc, nvidia,tegra30-ahub are not documented yet
>> - nvidia,tegra30-vi was adjusted and applied, change did not apper yet
>>   (https://lore.kernel.org/lkml/176860988748.1688420.11717122647073678.b4-ty@nvidia.com/)
>> - st,m24c08 appers undocumented though it seems to be different from
>>   st,24c08, at least they google as separate devices. atmel,24c08 is not
>>   documented, though it is widey used in linux device trees and is
>>   supported by driver. Here is one of examples:
>>   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm/boot/dts/allwinner/sun7i-a20-linutronix-testbox-v2.dts?h=next-20260123#n33
>> - onnn,mt9m114 does not have 'orientation' property, though it should
>>   include it since it is generic for camera devices
>> - ti,lp8720 and maxim,max77663 have txt documentation and are not yet
>>   converted to DT schema
>> - backlight in panel nodes was not added since lm3533 has no DT support
>> - missing '#io-channel-cells' in ti,tsc2007 addressed in
>>   https://lore.kernel.org/lkml/20260122193549.29858-2-clamor95@gmail.com/
>> - missing dsi controller properties of ssd2825 addressed in
>>   https://lore.kernel.org/lkml/20260123073411.7736-2-clamor95@gmail.com/
>> - missing '#io-channel-cells' in generic-adc-thermal was proposed in but rejected
>>   https://lore.kernel.org/lkml/20250310075638.6979-2-clamor95@gmail.com/
>> ---
>> 
>> Svyatoslav Ryhel (4):
>>   ARM: tegra: lg-x3: add panel and bridge nodes
>>   ARM: tegra: lg-x3: add USB and power related nodes
>>   ARM: tegra: lg-x3: add node for capacitive buttons
>>   ARM: tegra: lg-x3: complete video device graph
>> 
>>  arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts |  39 +++
>>  arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts |  79 +++++
>>  arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi  | 328 ++++++++++++++++++-
>>  3 files changed, 429 insertions(+), 17 deletions(-)
>
>Patches 1-3 applied. Patch 4 has checkpatch has checkpatch warnings:
>
>	WARNING: DT compatible string "st,m24c08" appears un-documented -- check ./Documentation/devicetree/bindings/
>	#255: FILE: arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi:1243:
>	+			compatible = "st,m24c08", "atmel,24c08";
>
>So I've left it out for now.
>

st,m24c08 appers undocumented though it seems to be different from
st,24c08 (in schema) at least they google as separate devices. atmel,24c08 is not
documented, though it is widey used in linux device trees and is
supported by driver. Here is one of examples:
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm/boot/dts/allwinner/sun7i-a20-linutronix-testbox-v2.dts?h=next-20260123#n33

I assume patch 4 should be fine and most likely schema needs to be adjusted to cover this compatible (since it exists and is used).

>Thierry