From b368d3ecab2db45a4fa296fe825d4ef6893f4620 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Tue, 5 Nov 2019 16:10:23 -0500 Subject: [PATCH] drm/mediatek: Support reflect-x plane rotation Add support for REFLECT_X rotations. Cc: Fritz Koenig Cc: Daniele Castagna Cc: Miguel Casas Cc: Mark Yacoub Signed-off-by: Sean Paul Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index fae10aead3d5..f4c4d3fedc5f 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -53,6 +53,7 @@ #define OVL_CON_AEN BIT(8) #define OVL_CON_ALPHA 0xff #define OVL_CON_VIRT_FLIP BIT(9) +#define OVL_CON_HORZ_FLIP BIT(10) struct mtk_disp_ovl_data { unsigned int addr; @@ -142,7 +143,8 @@ static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp) static unsigned int mtk_ovl_supported_rotations(struct mtk_ddp_comp *comp) { - return DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_Y; + return DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_Y | + DRM_MODE_REFLECT_X; } static int mtk_ovl_layer_check(struct mtk_ddp_comp *comp, unsigned int idx, @@ -153,6 +155,7 @@ static int mtk_ovl_layer_check(struct mtk_ddp_comp *comp, unsigned int idx, rotation = drm_rotation_simplify(state->rotation, DRM_MODE_ROTATE_0 | + DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y); rotation &= ~DRM_MODE_ROTATE_0; @@ -269,6 +272,11 @@ static void mtk_ovl_layer_config(struct mtk_ddp_comp *comp, unsigned int idx, addr += (pending->height - 1) * pending->pitch; } + if (pending->rotation & DRM_MODE_REFLECT_X) { + con |= OVL_CON_HORZ_FLIP; + addr += pending->pitch - 1; + } + writel_relaxed(con, comp->regs + DISP_REG_OVL_CON(idx)); writel_relaxed(pitch, comp->regs + DISP_REG_OVL_PITCH(idx)); writel_relaxed(src_size, comp->regs + DISP_REG_OVL_SRC_SIZE(idx)); -- 2.20.1