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authorGeert Uytterhoeven <geert+renesas@glider.be>2017-06-01 13:27:00 +0300
committerSimon Horman <horms+renesas@verge.net.au>2017-06-08 16:44:55 +0300
commit13132b3f44d3600983aceb7e9920b8ebb55a7cf8 (patch)
tree27e254a49ff5a2a7ba832ddff0914bfee31c4c1b /arch
parent7b4ccb3c466f62bbf2f4dd5d6a143d945a6f3051 (diff)
downloadlinux-13132b3f44d3600983aceb7e9920b8ebb55a7cf8.tar.xz
ARM: dts: armadillo800eva: Split LCD mux and gpio
Configuration of the lcd0 pinmux group and GPIO hog for the external GPIO mux are done using a single device node, causing the "output-high" property to be applied to both. This will fail for the pinmux group, but doesn't cause any harm, as the failure is ignored silently. However, after "pinctrl: sh-pfc: propagate errors on group config", the failure will become fatal, leading to a broken display: sh-pfc e6050000.pin-controller: pin_config_group_set op failed for group 102 sh-pfc e6050000.pin-controller: Error applying setting, reverse things back sh-pfc e6050000.pin-controller: failed to select default state Move the GPIO hog to its own node to fix this. Fixes: ffd2f9a5afb730b9 ("ARM: shmobile: armadillo800eva dts: Add pinctrl and gpio-hog for lcdc0") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/boot/dts/r8a7740-armadillo800eva.dts2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
index 7885075428bb..1788e186a512 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
@@ -266,7 +266,9 @@
lcd0_pins: lcd0 {
groups = "lcd0_data24_0", "lcd0_lclk_1", "lcd0_sync";
function = "lcd0";
+ };
+ lcd0_mux {
/* DBGMD/LCDC0/FSIA MUX */
gpio-hog;
gpios = <176 0>;