From: Stu Hsieh Date: Thu, 9 Aug 2018 02:15:45 +0000 (+0800) Subject: drm/mediatek: add function to return OVL layer number X-Git-Tag: android-x86-8.1-r1~322^2~2^2~4 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=1cbcb763ea5035e7ef01010ea68eb3b5143ad7cb;p=android-x86%2Fkernel.git drm/mediatek: add function to return OVL layer number This patch add function to return OVL layer number For now, MT8173, MT2712, MT2701 OVL all has 4 layer. Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 0facd823c552..28d191192945 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -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,