diff options
Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_mode.c')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_mode.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index ea068addbc74..6e8b0db1ffa0 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -964,6 +964,49 @@ mgag200_simple_display_pipe_update(struct drm_simple_display_pipe *pipe, mgag200_handle_damage(mdev, fb, &damage, &shadow_plane_state->map[0]); } +static struct drm_crtc_state * +mgag200_simple_display_pipe_duplicate_crtc_state(struct drm_simple_display_pipe *pipe) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_crtc_state *crtc_state = crtc->state; + struct mgag200_crtc_state *new_mgag200_crtc_state; + + if (!crtc_state) + return NULL; + + new_mgag200_crtc_state = kzalloc(sizeof(*new_mgag200_crtc_state), GFP_KERNEL); + if (!new_mgag200_crtc_state) + return NULL; + __drm_atomic_helper_crtc_duplicate_state(crtc, &new_mgag200_crtc_state->base); + + return &new_mgag200_crtc_state->base; +} + +static void mgag200_simple_display_pipe_destroy_crtc_state(struct drm_simple_display_pipe *pipe, + struct drm_crtc_state *crtc_state) +{ + struct mgag200_crtc_state *mgag200_crtc_state = to_mgag200_crtc_state(crtc_state); + + __drm_atomic_helper_crtc_destroy_state(&mgag200_crtc_state->base); + kfree(mgag200_crtc_state); +} + +static void mgag200_simple_display_pipe_reset_crtc(struct drm_simple_display_pipe *pipe) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct mgag200_crtc_state *mgag200_crtc_state; + + if (crtc->state) { + mgag200_simple_display_pipe_destroy_crtc_state(pipe, crtc->state); + crtc->state = NULL; /* must be set to NULL here */ + } + + mgag200_crtc_state = kzalloc(sizeof(*mgag200_crtc_state), GFP_KERNEL); + if (!mgag200_crtc_state) + return; + __drm_atomic_helper_crtc_reset(crtc, &mgag200_crtc_state->base); +} + static const struct drm_simple_display_pipe_funcs mgag200_simple_display_pipe_funcs = { .mode_valid = mgag200_simple_display_pipe_mode_valid, @@ -971,6 +1014,9 @@ mgag200_simple_display_pipe_funcs = { .disable = mgag200_simple_display_pipe_disable, .check = mgag200_simple_display_pipe_check, .update = mgag200_simple_display_pipe_update, + .reset_crtc = mgag200_simple_display_pipe_reset_crtc, + .duplicate_crtc_state = mgag200_simple_display_pipe_duplicate_crtc_state, + .destroy_crtc_state = mgag200_simple_display_pipe_destroy_crtc_state, DRM_GEM_SIMPLE_DISPLAY_PIPE_SHADOW_PLANE_FUNCS, }; |