This patch add callback function to return OVL layer number
Signed-off-by: Stu Hsieh stu.hsieh@mediatek.com --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 978782a77629..a42cfa057f42 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -58,6 +58,7 @@ struct mtk_disp_ovl_data { unsigned int addr; bool fmt_rgb565_is_0; + unsigned int layer_nr; };
/** @@ -132,6 +133,13 @@ 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) +{ + struct mtk_disp_ovl *ovl = comp_to_ovl(comp); + + return ovl->data->layer_nr; +} + static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx) { unsigned int reg; @@ -221,6 +229,7 @@ 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, @@ -319,6 +328,7 @@ static const struct mtk_disp_ovl_data mt2701_ovl_driver_data = { static const struct mtk_disp_ovl_data mt8173_ovl_driver_data = { .addr = DISP_REG_OVL_ADDR_MT8173, .fmt_rgb565_is_0 = true, + .layer_nr = 4, };
static const struct of_device_id mtk_disp_ovl_driver_dt_match[] = {