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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-01-22 15:36:24 (GMT) |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-01-27 09:02:43 (GMT) |
| commit | ee0a89cf3c2c550e6d877dda21dd2947afb90cb6 (patch) | |
| tree | 9da7f98114ddc7ca085a169b0a881efc1c80b273 /drivers/gpu/drm/drm_atomic_helper.c | |
| parent | f02ad907cd9e7fe3a6405d2d005840912f1ed258 (diff) | |
| download | linux-ee0a89cf3c2c550e6d877dda21dd2947afb90cb6.tar.xz | |
drm/atomic-helpers: Saner encoder/crtc callbacks
For historical reasons going all the way back to how the Xrandr code
was implemented the semantics of the callbacks used to enable/disable
crtcs and encoders are ... interesting.
But with atomic helpers all that complexity has been binned, with only
a well-defined on/off action left. Unfortunately the names stuck.
Let's fix that by adding enable/disable hooks every, make them the
preferred variant for atomic and update documentations.
Later on we add debug warnings when drivers have deprecated hooks. But
while everything is in-flight with lots of drivers converting to
atomic that's a bit too much - better wait for things to settle a bit
first.
v2: Fix kerneldoc, reported by Wu Fengguang.
Reviewed-by: Thierry Reding <treding@nvidia.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 | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index d0c3611..379b6c8 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -599,7 +599,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) encoder->bridge->funcs->disable(encoder->bridge); /* Right function depends upon target state. */ - if (connector->state->crtc) + if (connector->state->crtc && funcs->prepare) funcs->prepare(encoder); else if (funcs->disable) funcs->disable(encoder); @@ -628,7 +628,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) funcs = crtc->helper_private; /* Right function depends upon target state. */ - if (crtc->state->enable) + if (crtc->state->enable && funcs->prepare) funcs->prepare(crtc); else if (funcs->disable) funcs->disable(crtc); @@ -792,8 +792,12 @@ void drm_atomic_helper_commit_post_planes(struct drm_device *dev, funcs = crtc->helper_private; - if (crtc->state->enable) - funcs->commit(crtc); + if (crtc->state->enable) { + if (funcs->enable) + funcs->enable(crtc); + else + funcs->commit(crtc); + } } for (i = 0; i < old_state->num_connector; i++) { @@ -819,7 +823,10 @@ void drm_atomic_helper_commit_post_planes(struct drm_device *dev, if (encoder->bridge) encoder->bridge->funcs->pre_enable(encoder->bridge); - funcs->commit(encoder); + if (funcs->enable) + funcs->enable(encoder); + else + funcs->commit(encoder); if (encoder->bridge) encoder->bridge->funcs->enable(encoder->bridge); |