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ARM: dts: sun5i: q8-tablet: Add LCD Panel power supply

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The A13 Q8 tablet, following the A13 reference tablet design, has the
system's fixed 3.3V rail feed the VCC supply of the LCD panel.
Additional voltage rails used by the panel are generated using a
regulator fed from the unregulated IPSOUT output of the PMIC. The latter
is unrepresentable in the device tree. Both are controlled with MOSFETs
by the enable GPIO added in the previous patch. The actual enable or
reset pin for the panel is tied directly to LCD-VCC after the MOSFET.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
This commit is contained in:
Chen-Yu Tsai 2019-01-27 22:48:37 +08:00 committed by Maxime Ripard
parent 4d58c8cc93
commit 64af290124
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arch/arm/boot/dts/sun5i-a13-q8-tablet.dts
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@ -50,6 +50,7 @@ / {
panel: panel {
compatible = "urt,umsh-8596md-t", "simple-panel";
power-supply = <&reg_vcc3v3>;
enable-gpios = <&axp_gpio 0 GPIO_ACTIVE_HIGH>; /* AXP GPIO0 */
backlight = <&backlight>;
#address-cells = <1>;