linux-kernel - [PATCH 5.10 023/120] ARM: dts: stm32: Disable optional TSC2004 on DRC02 board

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Date:   Mon,  8 Feb 2021 16:00:10 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Marek Vasut <marex@...x.de>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Patrice Chotard <patrice.chotard@...com>,
        Patrick Delaunay <patrick.delaunay@...com>,
        linux-stm32@...md-mailman.stormreply.com,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 023/120] ARM: dts: stm32: Disable optional TSC2004 on DRC02 board

From: Marek Vasut <marex@...x.de>

[ Upstream commit 087698939f30d489e785d7df3e6aa5dce2487b39 ]

The DRC02 has no use for the on-SoM touchscreen controller, and the
on-SoM touchscreen controller may not even be populated, which then
results in error messages in kernel log. Disable the touchscreen
controller in DT.

Fixes: fde180f06d7b ("ARM: dts: stm32: Add DHSOM based DRC02 board")
Signed-off-by: Marek Vasut <marex@...x.de>
Cc: Alexandre Torgue <alexandre.torgue@...com>
Cc: Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc: Patrice Chotard <patrice.chotard@...com>
Cc: Patrick Delaunay <patrick.delaunay@...com>
Cc: linux-stm32@...md-mailman.stormreply.com
To: linux-arm-kernel@...ts.infradead.org
Signed-off-by: Alexandre Torgue <alexandre.torgue@...s.st.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/stm32mp15xx-dhcom-drc02.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcom-drc02.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcom-drc02.dtsi
index 3299a42d80633..4cabdade6432b 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dhcom-drc02.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dhcom-drc02.dtsi
@@ -87,6 +87,12 @@
 	};
 };
 
+&i2c4 {
+	touchscreen@49 {
+		status = "disabled";
+	};
+};
+
 &i2c5 {	/* TP7/TP8 */
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c5_pins_a>;
-- 
2.27.0