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rockchip: video: vop: Set different bitwidth for different display mode

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Because the bitwidth is different for different display mode, so we need
to set them according to demand.

Signed-off-by: Eric Gao <eric.gao@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Eric Gao 2017-05-02 18:23:53 +08:00 committed by Simon Glass
parent 9f819931e0
commit 8aed0d7751
1 changed files with 16 additions and 4 deletions
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20
drivers/video/rockchip/rk_vop.c
View file

@ -181,13 +181,11 @@ void rkvop_mode_set(struct rk3288_vop *regs,
*
* @dev: VOP device that we want to connect to the display
* @fbbase: Frame buffer address
* @l2bpp Log2 of bits-per-pixels for the display
* @ep_node: Device tree node to process - this is the offset of an endpoint
* node within the VOP's 'port' list.
* @return 0 if OK, -ve if something went wrong
*/
int rk_display_init(struct udevice *dev, ulong fbbase,
enum video_log2_bpp l2bpp, int ep_node)
int rk_display_init(struct udevice *dev, ulong fbbase, int ep_node)
{
struct video_priv *uc_priv = dev_get_uclass_priv(dev);
const void *blob = gd->fdt_blob;
@ -199,6 +197,7 @@ int rk_display_init(struct udevice *dev, ulong fbbase,
int ret, remote, i, offset;
struct display_plat *disp_uc_plat;
struct clk clk;
enum video_log2_bpp l2bpp;
vop_id = fdtdec_get_int(blob, ep_node, "reg", -1);
debug("vop_id=%d\n", vop_id);
@ -253,6 +252,19 @@ int rk_display_init(struct udevice *dev, ulong fbbase,
return ret;
}
/* Set bitwidth for vop display according to vop mode */
switch (vop_id) {
case VOP_MODE_EDP:
case VOP_MODE_HDMI:
case VOP_MODE_LVDS:
l2bpp = VIDEO_BPP16;
break;
case VOP_MODE_MIPI:
l2bpp = VIDEO_BPP32;
break;
default:
l2bpp = VIDEO_BPP16;
}
rkvop_mode_set(regs, &timing, vop_id);
rkvop_enable(regs, fbbase, 1 << l2bpp, &timing);
@ -330,7 +342,7 @@ static int rk_vop_probe(struct udevice *dev)
for (node = fdt_first_subnode(blob, port);
node > 0;
node = fdt_next_subnode(blob, node)) {
ret = rk_display_init(dev, plat->base, VIDEO_BPP16, node);
ret = rk_display_init(dev, plat->base, node);
if (ret)
debug("Device failed: ret=%d\n", ret);
if (!ret)