Add touchscreen and TMP451 tempsensor nodes to Google Pixel C (tegra210-smaug) Device Tree

Information to get these working was gained from downstream DTS.

Both were missing upstream and easy to add:
- It uses a RMI4 HID-over-I2C compatible touchscreen.
- TMP451 is located close to eMMC according to iFixit's teardown.

This is the first time I've ever submitted patches upstream myself. If there's anything I've missed or could do better in a new rev, please let me know!

---
Jasper Korten (2):
arm64: dts: nvidia: tegra210-smaug: Add touchscreen node
arm64: dts: nvidia: tegra210-smaug: Add TMP451 temperature sensor node

 arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

---
base-commit: da3ea35007d0af457a0afc87e84fddaebc4e0b63
change-id: 20240915-touch-temp-c64b68961aee

Best regards,

Jasper Korten <[email protected]>

The Google Pixel C contains a RMI4 HID over I2C touchscreen. Add a DT node for the touchscreen.

Information gathered from downstream tree.

---
 arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

index 2e5b6b2c1f56..6f77540fd397 100644
@@ -1362,6 +1362,19 @@ bluetooth {
 		};
 	};
 
+	i2c@7000c000 {
+		status = "okay";
+		clock-frequency = <1000000>;
+
+		touchscreen: i2c-hid-dev@20 {
+				compatible = "hid-over-i2c";
+				reg = <0x20>;
+				hid-descr-addr = <0x0020>;
+				interrupt-parent = <&gpio>;
+				interrupts = <TEGRA_GPIO(X, 1) IRQ_TYPE_EDGE_FALLING>;
+		};
+	};
+
 	i2c@7000c400 {
 		status = "okay";
 		clock-frequency = <1000000>;

2.46.0

The Google Pixel C contains a TI TMP451 temperature sensor. Add a DT node for temperature sensor.

Information gathered from downstream tree.

---
 arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

index 6f77540fd397..c724cb4d5ad8 100644
@@ -1732,6 +1732,15 @@ audio-codec@2d {
 			#gpio-cells = <2>;
 			status = "okay";
 		};
+
+		tmp451: temperature-sensor@4c {
+			compatible = "ti,tmp451";
+			reg = <0x4c>;
+			interrupt-parent = <&gpio>;
+			interrupts = <TEGRA_GPIO(X, 4) IRQ_TYPE_LEVEL_LOW>;
+			vcc-supply = <&pp1800>;
+			#thermal-sensor-cells = <1>;
+		};
 	};
 
 	pmc@7000e400 {

2.46.0

For both patches:

Thanks!

From: Thierry Reding <[email protected]>

Applied, thanks!

[1/2] arm64: dts: nvidia: tegra210-smaug: Add touchscreen node

      commit: c8d63aa0f14adce3d01a3b776b5ea6a33620891d
[2/2] arm64: dts: nvidia: tegra210-smaug: Add TMP451 temperature sensor node
      commit: b219fe91d3140cddb53538c169f7cb2f6f05e75a

Best regards,

Thierry Reding <[email protected]>