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| author | Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> | 2019-03-14 21:48:45 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2019-03-29 13:56:52 +0300 |
| commit | fe61692886669bbcc260f980903eacb4ddebaf59 (patch) | |
| tree | ae296bf0447978d404ca24bf7aaf74d70a4583d3 | |
| parent | 36a1da15b5df493241b0011d2185fdd724ac1ed1 (diff) | |
| download | linux-fe61692886669bbcc260f980903eacb4ddebaf59.tar.xz | |
drm/atomic-helper: Make atomic_enable/disable crtc callbacks optional
Allow atomic_enable and atomic_disable operations from
drm_crtc_helper_funcs struct optional. With this, the target display
drivers don't need to define a dummy function if they don't need one.
Changes since v2:
* Don't make funcs optional
* Update kerneldoc for atomic_enable/disable
* Replace "if (funcs->atomic_enable)" by "if (funcs->commit)"
* Improve commit message
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20190314184845.gjmvkamobj4dilyp@smtp.gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 5 | ||||
| -rw-r--r-- | include/drm/drm_modeset_helper_vtables.h | 4 |
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 40ac19848034..fbb76332cc9f 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1034,7 +1034,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) funcs->atomic_disable(crtc, old_crtc_state); else if (funcs->disable) funcs->disable(crtc); - else + else if (funcs->dpms) funcs->dpms(crtc, DRM_MODE_DPMS_OFF); if (!(dev->irq_enabled && dev->num_crtcs)) @@ -1277,10 +1277,9 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, if (new_crtc_state->enable) { DRM_DEBUG_ATOMIC("enabling [CRTC:%d:%s]\n", crtc->base.id, crtc->name); - if (funcs->atomic_enable) funcs->atomic_enable(crtc, old_crtc_state); - else + else if (funcs->commit) funcs->commit(crtc); } } diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h index cfb7be40bed7..ce4de6b1e444 100644 --- a/include/drm/drm_modeset_helper_vtables.h +++ b/include/drm/drm_modeset_helper_vtables.h @@ -418,6 +418,8 @@ struct drm_crtc_helper_funcs { * Drivers can use the @old_crtc_state input parameter if the operations * needed to enable the CRTC don't depend solely on the new state but * also on the transition between the old state and the new state. + * + * This function is optional. */ void (*atomic_enable)(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state); @@ -441,6 +443,8 @@ struct drm_crtc_helper_funcs { * parameter @old_crtc_state which could be used to access the old * state. Atomic drivers should consider to use this one instead * of @disable. + * + * This function is optional. */ void (*atomic_disable)(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state); |