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author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-02-22 12:24:19 +0100 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-02-24 01:57:46 +0100 |
commit | 1af434a92871af93d97ce28e35497532a4167a0c (patch) | |
tree | 86253693a02e39bf5204a5dde82cb5866a428063 /drivers/gpu/drm/drm_atomic_helper.c | |
parent | a072f809b69885c77262fb978b008ef9488d513e (diff) | |
download | linux-1af434a92871af93d97ce28e35497532a4167a0c.tar.bz2 |
drm/atomic-helper: Rename commmit_post/pre_planes
These names only make sense because of backwards compatability with
the order used by the crtc helper library. There's not really any real
requirement in the ordering here.
So rename them to something more descriptive and update the kerneldoc
a bit. Motivated in a discussion with Laurent about how to restore
plane state for dpms for drivers with runtime pm.
v2: Squash in fixup from Stephen Rothwell to fix a conflict with
tegra.
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
-rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 40 |
1 files changed, 25 insertions, 15 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 65b9adf5777c..9c528bbcd8d2 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -768,34 +768,44 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state) } /** - * drm_atomic_helper_commit_pre_planes - modeset commit before plane updates + * drm_atomic_helper_commit_modeset_disables - modeset commit to disable outputs * @dev: DRM device * @old_state: atomic state object with old state structures * - * This function commits the modeset changes that need to be committed before - * updating planes. It shuts down all the outputs that need to be shut down and + * This function shuts down all the outputs that need to be shut down and * prepares them (if required) with the new mode. + * + * For compatability with legacy crtc helpers this should be called before + * drm_atomic_helper_commit_planes(), which is what the default commit function + * does. But drivers with different needs can group the modeset commits together + * and do the plane commits at the end. This is useful for drivers doing runtime + * PM since planes updates then only happen when the CRTC is actually enabled. */ -void drm_atomic_helper_commit_pre_planes(struct drm_device *dev, - struct drm_atomic_state *old_state) +void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev, + struct drm_atomic_state *old_state) { disable_outputs(dev, old_state); set_routing_links(dev, old_state); crtc_set_mode(dev, old_state); } -EXPORT_SYMBOL(drm_atomic_helper_commit_pre_planes); +EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_disables); /** - * drm_atomic_helper_commit_post_planes - modeset commit after plane updates + * drm_atomic_helper_commit_modeset_enables - modeset commit to enable outputs * @dev: DRM device * @old_state: atomic state object with old state structures * - * This function commits the modeset changes that need to be committed after - * updating planes: It enables all the outputs with the new configuration which - * had to be turned off for the update. + * This function enables all the outputs with the new configuration which had to + * be turned off for the update. + * + * For compatability with legacy crtc helpers this should be called after + * drm_atomic_helper_commit_planes(), which is what the default commit function + * does. But drivers with different needs can group the modeset commits together + * and do the plane commits at the end. This is useful for drivers doing runtime + * PM since planes updates then only happen when the CRTC is actually enabled. */ -void drm_atomic_helper_commit_post_planes(struct drm_device *dev, - struct drm_atomic_state *old_state) +void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, + struct drm_atomic_state *old_state) { int ncrtcs = old_state->dev->mode_config.num_crtc; int i; @@ -861,7 +871,7 @@ void drm_atomic_helper_commit_post_planes(struct drm_device *dev, encoder->bridge->funcs->enable(encoder->bridge); } } -EXPORT_SYMBOL(drm_atomic_helper_commit_post_planes); +EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_enables); static void wait_for_fences(struct drm_device *dev, struct drm_atomic_state *state) @@ -1030,11 +1040,11 @@ int drm_atomic_helper_commit(struct drm_device *dev, wait_for_fences(dev, state); - drm_atomic_helper_commit_pre_planes(dev, state); + drm_atomic_helper_commit_modeset_disables(dev, state); drm_atomic_helper_commit_planes(dev, state); - drm_atomic_helper_commit_post_planes(dev, state); + drm_atomic_helper_commit_modeset_enables(dev, state); drm_atomic_helper_wait_for_vblanks(dev, state); |