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| author | Simon Glass <sjg@chromium.org> | 2020-02-03 07:36:14 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2020-02-05 19:33:46 -0700 |
| commit | a466db5adb58e486fbd8ae63536b03a70d69f68d (patch) | |
| tree | 141ac6c6d9268756342e3e5fcf5fb3a4b30a5d80 | |
| parent | 6be88c72828923f2df8c441ee12f5829e0d06f32 (diff) | |
| download | u-boot-a466db5adb58e486fbd8ae63536b03a70d69f68d.zip u-boot-a466db5adb58e486fbd8ae63536b03a70d69f68d.tar.gz u-boot-a466db5adb58e486fbd8ae63536b03a70d69f68d.tar.bz2 | |
sandbox: Support changing the LCD colour depth
Add a new device-tree property to control the colour depth. At present we
support 16bpp and 32bpp.
While we are here, update the code to use livetree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
| -rw-r--r-- | arch/sandbox/dts/sandbox.dtsi | 1 | ||||
| -rw-r--r-- | doc/device-tree-bindings/video/sandbox-fb.txt | 6 | ||||
| -rw-r--r-- | drivers/video/sandbox_sdl.c | 8 |
3 files changed, 9 insertions, 6 deletions
diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi index 7bf144f..7cd56c1 100644 --- a/arch/sandbox/dts/sandbox.dtsi +++ b/arch/sandbox/dts/sandbox.dtsi @@ -83,6 +83,7 @@ compatible = "sandbox,lcd-sdl"; xres = <1366>; yres = <768>; + log2-depth = <5>; }; leds { diff --git a/doc/device-tree-bindings/video/sandbox-fb.txt b/doc/device-tree-bindings/video/sandbox-fb.txt index eb91b30..230d25c 100644 --- a/doc/device-tree-bindings/video/sandbox-fb.txt +++ b/doc/device-tree-bindings/video/sandbox-fb.txt @@ -2,7 +2,10 @@ Sandbox LCD =========== This uses the displaymode.txt binding except that only xres and yres are -required properties. +required properties. Also an additional optional property is defined: + +log2-depth: Log base 2 of the U-Boot display buffer depth (4=16bpp, 5=32bpp). + If not provided, a value of 4 is used. Example: @@ -10,4 +13,5 @@ Example: compatible = "sandbox,lcd-sdl"; xres = <800>; yres = <600>; + log2-depth = <5>; }; diff --git a/drivers/video/sandbox_sdl.c b/drivers/video/sandbox_sdl.c index d1272d0..1196e6c 100644 --- a/drivers/video/sandbox_sdl.c +++ b/drivers/video/sandbox_sdl.c @@ -47,13 +47,11 @@ static int sandbox_sdl_bind(struct udevice *dev) { struct video_uc_platdata *uc_plat = dev_get_uclass_platdata(dev); struct sandbox_sdl_plat *plat = dev_get_platdata(dev); - const void *blob = gd->fdt_blob; - int node = dev_of_offset(dev); int ret = 0; - plat->xres = fdtdec_get_int(blob, node, "xres", LCD_MAX_WIDTH); - plat->yres = fdtdec_get_int(blob, node, "yres", LCD_MAX_HEIGHT); - plat->bpix = VIDEO_BPP16; + plat->xres = dev_read_u32_default(dev, "xres", LCD_MAX_WIDTH); + plat->yres = dev_read_u32_default(dev, "yres", LCD_MAX_HEIGHT); + plat->bpix = dev_read_u32_default(dev, "log2-depth", VIDEO_BPP16); uc_plat->size = plat->xres * plat->yres * (1 << plat->bpix) / 8; debug("%s: Frame buffer size %x\n", __func__, uc_plat->size); |