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drm/mediatek: add function to return OVL layer number

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This patch add function to return OVL layer number

For now, MT8173, MT2712, MT2701 OVL all has 4 layer.

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
Stu Hsieh 2018-08-09 10:15:45 +08:00 committed by CK Hu
parent 650afd4957
commit 1cbcb763ea
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/mediatek/mtk_disp_ovl.c
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@ -132,6 +132,11 @@ static void mtk_ovl_config(struct mtk_ddp_comp *comp, unsigned int w,
writel(0x0, comp->regs + DISP_REG_OVL_RST);
}
static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp)
{
return 4;
}
static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx)
{
unsigned int reg;
@ -226,6 +231,7 @@ static const struct mtk_ddp_comp_funcs mtk_disp_ovl_funcs = {
.stop = mtk_ovl_stop,
.enable_vblank = mtk_ovl_enable_vblank,
.disable_vblank = mtk_ovl_disable_vblank,
.layer_nr = mtk_ovl_layer_nr,
.layer_on = mtk_ovl_layer_on,
.layer_off = mtk_ovl_layer_off,
.layer_config = mtk_ovl_layer_config,