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video: imxfb: Add DT default contrast control register property.

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Signed-off-by: Denis Carikli <denis@eukrea.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Denis Carikli 2014-03-14 11:55:52 +01:00 committed by Tomi Valkeinen
parent 7d3477d801
commit cf071d2ab3
2 changed files with 6 additions and 0 deletions
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3
Documentation/devicetree/bindings/video/fsl,imx-fb.txt
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@ -18,6 +18,9 @@ Optional properties:
- lcd-supply: Regulator for LCD supply voltage.
- fsl,dmacr: DMA Control Register value. This is optional. By default, the
register is not modified as recommended by the datasheet.
- fsl,lpccr: Contrast Control Register value. This property provides the
default value for the contrast control register.
If that property is ommited, the register is zeroed.
- fsl,lscr1: LCDC Sharp Configuration Register value.
Example:

3
drivers/video/imxfb.c
View File

@ -670,6 +670,9 @@ static int imxfb_init_fbinfo(struct platform_device *pdev)
fbi->cmap_static = of_property_read_bool(np, "cmap-static");
fbi->lscr1 = IMXFB_LSCR1_DEFAULT;
of_property_read_u32(np, "fsl,lpccr", &fbi->pwmr);
of_property_read_u32(np, "fsl,lscr1", &fbi->lscr1);
of_property_read_u32(np, "fsl,dmacr", &fbi->dmacr);