diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2017-06-01 12:27:00 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-13 19:48:24 +0200 |
| commit | 90963c61ff0ae480090895725eabb4c60ed358bd (patch) | |
| tree | c9c44fffc7382865de51988dd8cec21b4dedeb0e /arch | |
| parent | 353a7186f1ec39881d6b20d4b150f283393e4ce6 (diff) | |
ARM: dts: armadillo800eva: Split LCD mux and gpio
[ Upstream commit 13132b3f44d3600983aceb7e9920b8ebb55a7cf8 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/r8a7740-armadillo800eva.dts | 2 |
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>; |