linux-kernel - [PATCH RESEND 2/2] ARM: dts: ti/omap: omap3-gta04: use proper touchscreen properties

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Message-Id: <20241205204413.2466775-3-akemnade@kernel.org>
Date: Thu,  5 Dec 2024 21:44:13 +0100
From: akemnade@...nel.org
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Andreas Kemnade <andreas@...nade.info>,
	Tony Lindgren <tony@...mide.com>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-omap@...r.kernel.org,
	khilman@...libre.com,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	devicetree@...r.kernel.org,
	linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH RESEND 2/2] ARM: dts: ti/omap: omap3-gta04: use proper touchscreen properties

From: Andreas Kemnade <andreas@...nade.info>

Specify the dimensions of the touchscreen propertly so that
no userspace configuration is needed for it.
Tested with x11 and weston on Debian bookworm.

What is in now is some debris from earlier tries to handle
scaling in kernel:

https://lore.kernel.org/linux-input/cover.1482936802.git.hns@goldelico.com/

Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
 arch/arm/boot/dts/ti/omap/omap3-gta04.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/ti/omap/omap3-gta04.dtsi b/arch/arm/boot/dts/ti/omap/omap3-gta04.dtsi
index 2ee3ddd640209..ed728661e1895 100644
--- a/arch/arm/boot/dts/ti/omap/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/ti/omap/omap3-gta04.dtsi
@@ -591,8 +591,10 @@ tsc2007@48 {
 		interrupts = <0 IRQ_TYPE_EDGE_FALLING>; /* GPIO_160 */
 		gpios = <&gpio6 0 GPIO_ACTIVE_LOW>;	/* GPIO_160 */
 		ti,x-plate-ohms = <600>;
-		touchscreen-size-x = <480>;
-		touchscreen-size-y = <640>;
+		touchscreen-size-x = <0xf00>;
+		touchscreen-size-y = <0xf00>;
+		touchscreen-min-x = <0x100>;
+		touchscreen-min-y = <0x100>;
 		touchscreen-max-pressure = <1000>;
 		touchscreen-fuzz-x = <3>;
 		touchscreen-fuzz-y = <8>;
-- 
2.39.2