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authorThierry Reding <treding@nvidia.com>2018-03-19 17:20:46 +0100
committerThierry Reding <treding@nvidia.com>2018-05-18 21:56:21 +0200
commit995c5a509fb032ddd83eff4f3772c7fc8ff0b7ec (patch)
treea65253b7a7e110a7625fa1a5d64c60b02d954561 /drivers/gpu/drm/tegra/dc.c
parentdrm/tegra: gem: Fill in missing export info (diff)
downloadlinux-dev-995c5a509fb032ddd83eff4f3772c7fc8ff0b7ec.tar.xz
linux-dev-995c5a509fb032ddd83eff4f3772c7fc8ff0b7ec.zip
drm/tegra: dc: Support rotation property
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>
Diffstat (limited to 'drivers/gpu/drm/tegra/dc.c')
-rw-r--r--drivers/gpu/drm/tegra/dc.c26
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 31e12a9dfcb8..c3afe7b2237e 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -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;
}