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dt-bindings: ads7846: Add hsync-gpios

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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>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240430-gpio-leds-miscarm-v1-2-9c94d7711f6c@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Linus Walleij
2024-06-21 13:34:44 -07:00
committed by Dmitry Torokhov
parent a38297e3fb
commit e7202f6467
1 changed files with 1 additions and 0 deletions
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Documentation/devicetree/bindings/input/touchscreen/ads7846.txt
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@@ -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].