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drm/tegra: dc: Support rotation property

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Currently only the DRM_MODE_REFLECT_Y rotation is supported. The driver
already supports reflection on the Y axis via a custom flag which is not
very useful because it requires custom userspace. Add the standard
rotation property that supports 0 degree rotation and Y axis reflection
for primary and overlay planes to provide a better interface than the
custom flag.

v2: keep custom flag for ABI compatibility (Dmitry)

Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2018-03-19 17:20:46 +01:00
parent 4bd91a5b5d
commit 995c5a509f
3 changed files with 28 additions and 1 deletions
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26
drivers/gpu/drm/tegra/dc.c
View file

@ -596,6 +596,7 @@ static int tegra_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct tegra_plane_state *plane_state = to_tegra_plane_state(state);
unsigned int rotation = DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_Y;
struct tegra_bo_tiling *tiling = &plane_state->tiling;
struct tegra_plane *tegra = to_tegra_plane(plane);
struct tegra_dc *dc = to_tegra_dc(state->crtc);
@ -633,6 +634,13 @@ static int tegra_plane_atomic_check(struct drm_plane *plane,
return -EINVAL;
}
rotation = drm_rotation_simplify(state->rotation, rotation);
if (rotation & DRM_MODE_REFLECT_Y)
plane_state->bottom_up = true;
else
plane_state->bottom_up = false;
/*
* Tegra doesn't support different strides for U and V planes so we
* error out if the user tries to display a framebuffer with such a
@ -693,7 +701,7 @@ static void tegra_plane_atomic_update(struct drm_plane *plane,
window.dst.w = drm_rect_width(&plane->state->dst);
window.dst.h = drm_rect_height(&plane->state->dst);
window.bits_per_pixel = fb->format->cpp[0] * 8;
window.bottom_up = tegra_fb_is_bottom_up(fb);
window.bottom_up = tegra_fb_is_bottom_up(fb) || state->bottom_up;
/* copy from state */
window.zpos = plane->state->normalized_zpos;
@ -776,6 +784,14 @@ static struct drm_plane *tegra_primary_plane_create(struct drm_device *drm,
drm_plane_helper_add(&plane->base, &tegra_plane_helper_funcs);
drm_plane_create_zpos_property(&plane->base, plane->index, 0, 255);
err = drm_plane_create_rotation_property(&plane->base,
DRM_MODE_ROTATE_0,
DRM_MODE_ROTATE_0 |
DRM_MODE_REFLECT_Y);
if (err < 0)
dev_err(dc->dev, "failed to create rotation property: %d\n",
err);
return &plane->base;
}
@ -1053,6 +1069,14 @@ static struct drm_plane *tegra_dc_overlay_plane_create(struct drm_device *drm,
drm_plane_helper_add(&plane->base, &tegra_plane_helper_funcs);
drm_plane_create_zpos_property(&plane->base, plane->index, 0, 255);
err = drm_plane_create_rotation_property(&plane->base,
DRM_MODE_ROTATE_0,
DRM_MODE_ROTATE_0 |
DRM_MODE_REFLECT_Y);
if (err < 0)
dev_err(dc->dev, "failed to create rotation property: %d\n",
err);
return &plane->base;
}

1
drivers/gpu/drm/tegra/plane.c
View file

@ -56,6 +56,7 @@ tegra_plane_atomic_duplicate_state(struct drm_plane *plane)
copy->tiling = state->tiling;
copy->format = state->format;
copy->swap = state->swap;
copy->bottom_up = state->bottom_up;
copy->opaque = state->opaque;
for (i = 0; i < 2; i++)

2
drivers/gpu/drm/tegra/plane.h
View file

@ -46,6 +46,8 @@ struct tegra_plane_state {
u32 format;
u32 swap;
bool bottom_up;
/* used for legacy blending support only */
struct tegra_plane_legacy_blending_state blending[2];
bool opaque;