From: Mark Yacoub <markyacoub@xxxxxxxxxx>
[Why]
The Rotation prob is a bitmask value. It must always have a valid value.
A default NO rotation is equal to 1 not 0.
[How]
1. At the reset hook, call __drm_atomic_helper_plane_reset which is
called at the initialization of the plane and sets the default value of
all planes to DRM_MODE_ROTATE_0 which is equal to 1.
2. At the ovl layer check, do no overwrite the state->rotation value 0
if DRM_MODE_ROTATE_0 is set. We should not change the value that the
userspace has set, especially if it's an unsupported value.
Tested on Jacuzzi(MTK).
Fixes IGT@kms_properties@plane-properties-{legacy,atomic} and
IGT@kms_properties@get_properties-sanity-{atomic,non-atomic}
Signed-off-by: Mark Yacoub <markyacoub@xxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_disp_drv.h | 2 +-
drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 20 +++++++-------------
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 5 ++---
drivers/gpu/drm/mediatek/mtk_drm_plane.c | 3 ++-
4 files changed, 12 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 86c3068894b11..2fc566964f68e 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -64,7 +64,7 @@ void mtk_ovl_config(struct device *dev, unsigned int w,
unsigned int h, unsigned int vrefresh,
unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
- struct mtk_plane_state *mtk_state);
+ const struct mtk_plane_state *mtk_state);
void mtk_ovl_layer_config(struct device *dev, unsigned int idx,
struct mtk_plane_state *state,
struct cmdq_pkt *cmdq_pkt);
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index ea5760f856ec6..13999564304bc 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -190,19 +190,15 @@ unsigned int mtk_ovl_supported_rotations(struct device *dev)
}
int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
- struct mtk_plane_state *mtk_state)
+ const struct mtk_plane_state *mtk_state)
{
- struct drm_plane_state *state = &mtk_state->base;
- unsigned int rotation = 0;
+ const struct drm_plane_state *state = &mtk_state->base;
+ unsigned int rotation = drm_rotation_simplify(
+ state->rotation,
+ DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
- rotation = drm_rotation_simplify(state->rotation,
- DRM_MODE_ROTATE_0 |
- DRM_MODE_REFLECT_X |
- DRM_MODE_REFLECT_Y);
- rotation &= ~DRM_MODE_ROTATE_0;
-
- /* We can only do reflection, not rotation */
- if ((rotation & DRM_MODE_ROTATE_MASK) != 0)
+ /* We can only do reflection, not non-zero rotation */
+ if (((rotation & ~DRM_MODE_ROTATE_0) & DRM_MODE_ROTATE_MASK) != 0)
return -EINVAL;
/*
@@ -212,8 +208,6 @@ int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
if (state->fb->format->is_yuv && rotation != 0)
return -EINVAL;
- state->rotation = rotation;
-
return 0;
}
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 1b582262b682b..530bdd031933f 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -53,9 +53,8 @@ struct mtk_ddp_comp_funcs {
void (*disable_vblank)(struct device *dev);
unsigned int (*supported_rotations)(struct device *dev);
unsigned int (*layer_nr)(struct device *dev);
- int (*layer_check)(struct device *dev,
- unsigned int idx,
- struct mtk_plane_state *state);
+ int (*layer_check)(struct device *dev, unsigned int idx,
+ const struct mtk_plane_state *state);
void (*layer_config)(struct device *dev, unsigned int idx,
struct mtk_plane_state *state,
struct cmdq_pkt *cmdq_pkt);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index e6dcb34d30522..accd26481b9fb 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -44,9 +44,10 @@ static void mtk_plane_reset(struct drm_plane *plane)
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
return;
- plane->state = &state->base;
}
+ __drm_atomic_helper_plane_reset(plane, &state->base);
+
state->base.plane = plane;
state->pending.format = DRM_FORMAT_RGB565;
}
--
2.33.0.1079.g6e70778dc9-goog
