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drm/mediatek: Support reflect-x plane rotation 

Add support for REFLECT_X rotations.

Cc: Fritz Koenig <frkoenig@chromium.org>
Cc: Daniele Castagna <dcastagna@chromium.org>
Cc: Miguel Casas <mcasas@chromium.org>
Cc: Mark Yacoub <markyacoub@google.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
Sean Paul 2019-11-05 16:10:23 -05:00 committed by CK Hu
parent 84d8057539
commit b368d3ecab
1 changed files with 9 additions and 1 deletions
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10
drivers/gpu/drm/mediatek/mtk_disp_ovl.c
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@ -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));