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| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-05-01 11:52:32 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2018-01-29 16:02:40 +0300 |
| commit | 47a05f4a68f91c09d89d2a0231b7b8c7ebb808ca (patch) | |
| tree | 11a28ec6a5b1a1fc7b18ebd9b90a32b75fb2f093 /drivers/gpu/drm/sun4i/sun4i_backend.c | |
| parent | 2bebcc4564470b03b0220bdc6836bbead750e875 (diff) | |
| download | linux-47a05f4a68f91c09d89d2a0231b7b8c7ebb808ca.tar.xz | |
drm/sun4i: backend: Add support for zpos
Our various planes have a configurable zpos, that combined with the pipes
allow to configure the composition.
Since the interaction between the pipes, zpos and alphas framebuffers is
not trivial, let's just enable the zpos as an immutable property for now,
and use that zpos in our atomic_update part.
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b006853e908bd06661c5bc1f2191121523bce0e4.1516617243.git-series.maxime.ripard@free-electrons.com
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_backend.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_backend.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c index caecae4ca7c4..0cbe9f066f0c 100644 --- a/drivers/gpu/drm/sun4i/sun4i_backend.c +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c @@ -271,6 +271,21 @@ int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend, return 0; } +int sun4i_backend_update_layer_zpos(struct sun4i_backend *backend, int layer, + struct drm_plane *plane) +{ + struct drm_plane_state *state = plane->state; + unsigned int priority = state->normalized_zpos; + + DRM_DEBUG_DRIVER("Setting layer %d's priority to %d\n", layer, priority); + + regmap_update_bits(backend->engine.regs, SUN4I_BACKEND_ATTCTL_REG0(layer), + SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL_MASK, + SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL(priority)); + + return 0; +} + static bool sun4i_backend_plane_uses_scaler(struct drm_plane_state *state) { u16 src_h = state->src_h >> 16; |