On 21/08/2026 09:12, Luca Weiss wrote:
Add a node and pinctrl for the Himax HX83112A touchscreen found on this
phone.
Signed-off-by: Luca Weiss <[email protected]>
---
arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
index 23f950067a08..ff609f7e1796 100644
--- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
+++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
@@ -626,7 +626,19 @@ &i2c8 {
clock-frequency = <400000>;
status = "okay";
- /* HX83112A touchscreen @ 48 */
+ touchscreen@48 {
+ compatible = "himax,hx83112a";
+ reg = <0x48>;
+
+ interrupts-extended = <&tlmm 22 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&tlmm 21 GPIO_ACTIVE_LOW>;
+
+ touchscreen-size-x = <1080>;
+ touchscreen-size-y = <2340>;
+
+ pinctrl-0 = <&touchscreen_default>;
+ pinctrl-names = "default";
+ };
};
&i2c10 {
@@ -1117,6 +1129,13 @@ platform {
&tlmm {
gpio-reserved-ranges = <13 4>, <56 2>;
+ touchscreen_default: touchscreen-default-state {
+ pins = "gpio21", "gpio22";
I guess you could use here irq-pins {}, reset-pins {},
but with or without change,
Reviewed-by: David Heidelberg <[email protected]>
+ function = "gpio";
+ drive-strength = <8>;
+ bias-pull-up;
+ };
+
qup_uart1_sleep_cts: qup-uart1-sleep-cts-state {
pins = "gpio61";
function = "gpio";
