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@shmanahar.org Fixes: ceef0396f367 ("ARM: dts: imx: add ZII RDU1 board") Cc: stable@vger.kernel.org # 4.15+ Reviewed-by: Fabio Estevam fabio.estevam@nxp.com Tested-by: Chris Healy cphealy@gmail.com --- Changes in v5: - Add tested by Chris Healy Changes in v4: - Add reviewed by Fabio Changes in v3: - Update commit message to add source of 0x4 value, fixes tag and CC stable Changes in v2: - Use hex, only alter IRQ line config
arch/arm/boot/dts/imx51-zii-rdu1.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx51-zii-rdu1.dts b/arch/arm/boot/dts/imx51-zii-rdu1.dts index df9eca94d812..8a878687197b 100644 --- a/arch/arm/boot/dts/imx51-zii-rdu1.dts +++ b/arch/arm/boot/dts/imx51-zii-rdu1.dts @@ -770,7 +770,7 @@
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 >; };