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[2/3] dt-bindings: ads7846: Add hsync-gpios

Message ID 20240430-gpio-leds-miscarm-v1-2-9c94d7711f6c@linaro.org
State New
Headers show
Series ARM: Modernize the PXA Spitz a bit | expand

Commit Message

Linus Walleij April 30, 2024, 7:03 a.m. UTC
The TI ADS7846 emits a horizontal sync signal that is usually
connected to a GPIO for polling. Add a binding for this.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/input/touchscreen/ads7846.txt | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/Documentation/devicetree/bindings/input/touchscreen/ads7846.txt b/Documentation/devicetree/bindings/input/touchscreen/ads7846.txt
index 81f6bda97d3c..399c87782935 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/ads7846.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/ads7846.txt
@@ -57,6 +57,7 @@  Optional properties:
 					pendown-gpio (u32).
 	pendown-gpio			GPIO handle describing the pin the !PENIRQ
 					line is connected to.
+	ti,hsync-gpios			GPIO line to poll for hsync
 	wakeup-source			use any event on touchscreen as wakeup event.
 					(Legacy property support: "linux,wakeup")
 	touchscreen-size-x		General touchscreen binding, see [1].