Commit b368d3ec authored by Sean Paul's avatar Sean Paul Committed by CK Hu
Browse files

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: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarCK Hu <ck.hu@mediatek.com>
parent 84d80575

drivers/gpu/drm/mediatek/mtk_disp_ovl.c

+9 −1
Original line number Diff line number Diff line
@@ -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));

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