[PATCH 4.17 16/56] ARM: dts: imx51-zii-rdu1: fix touchscreen pinctrl

[Greg Kroah-Hartman]

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nick Dyer <nick@xxxxxxxxxxxxx>

commit 06d793b114e9d922c03aa077ac6c5c51fdda2722 upstream.

The pinctrl settings were incorrect for the touchscreen interrupt line, causing
an interrupt storm. This change has been tested with both the atmel_mxt_ts and
RMI4 drivers on the RDU1 units.

The value 0x4 comes from the value of register IOMUXC_SW_PAD_CTL_PAD_CSI1_D8
from the old vendor kernel.

Signed-off-by: Nick Dyer <nick@xxxxxxxxxxxxx>
Fixes: ceef0396f367 ("ARM: dts: imx: add ZII RDU1 board")
Cc: <stable@xxxxxxxxxxxxxxx> # 4.15+
Reviewed-by: Fabio Estevam <fabio.estevam@xxxxxxx>
Tested-by: Chris Healy <cphealy@xxxxxxxxx>
Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/arm/boot/dts/imx51-zii-rdu1.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/boot/dts/imx51-zii-rdu1.dts
+++ b/arch/arm/boot/dts/imx51-zii-rdu1.dts
@@ -768,7 +768,7 @@
 
 	pinctrl_ts: tsgrp {
 		fsl,pins = <
-			MX51_PAD_CSI1_D8__GPIO3_12		0x85
+			MX51_PAD_CSI1_D8__GPIO3_12		0x04
 			MX51_PAD_CSI1_D9__GPIO3_13		0x85
 		>;
 	};