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authorDaniel Mack <daniel@zonque.org>2018-07-24 19:11:26 +0200
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2018-07-24 19:11:26 +0200
commit31e1391af210fdbf177966579a83d14e6a4cd828 (patch)
treeeaec8fc47773d19c453f4c583de71e53900e7ff2 /Documentation
parentvideo: fbdev: pxafb: handle errors from pxafb_init_fbinfo() correctly (diff)
downloadlinux-31e1391af210fdbf177966579a83d14e6a4cd828.tar.xz
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video: fbdev: pxafb: Add support for lcd-supply regulator
Optionally obtain a lcd-supply regulator during probe and use it in __pxafb_lcd_power() to switch the power supply of LCD panels. This helps boards booted from DT to control such voltages without callbacks. Signed-off-by: Daniel Mack <daniel@zonque.org> Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt b/Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt
index f79641bd5f18..45ffd6c41748 100644
--- a/Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt
+++ b/Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt
@@ -10,6 +10,9 @@ Required properties:
- interrupts : framebuffer controller interrupt.
- clocks: phandle to input clocks
+Optional properties:
+ - lcd-supply: A phandle to a power regulator that controls the LCD voltage.
+
Required nodes:
- port: connection to the LCD panel (see video-interfaces.txt)
This node must have its properties bus-width and remote-endpoint set.