diff options
| author | Thierry Reding <treding@nvidia.com> | 2014-12-03 16:44:34 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2015-01-27 10:14:42 +0100 |
| commit | 4cd4df8080a3e0d9b5a75dd52fa2133738def213 (patch) | |
| tree | f263b87b5c568f72d9c4b3c9945623b52b558553 /drivers/gpu/drm/drm_atomic_helper.c | |
| parent | 407b8bd9f5d284ffa13a9f9a709e6289bb4ae47e (diff) | |
drm/atomic: Add ->atomic_check() to encoder helpers
This callback can be used instead of the legacy ->mode_fixup() and is
passed the CRTC and connector states. It can thus use these states to
validate the modeset and cache values in the state to be used during
the actual modeset.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index af5f539ed147..24c44c24dabe 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -297,13 +297,22 @@ mode_fixup(struct drm_atomic_state *state) } } - - ret = funcs->mode_fixup(encoder, &crtc_state->mode, - &crtc_state->adjusted_mode); - if (!ret) { - DRM_DEBUG_KMS("[ENCODER:%d:%s] fixup failed\n", - encoder->base.id, encoder->name); - return -EINVAL; + if (funcs->atomic_check) { + ret = funcs->atomic_check(encoder, crtc_state, + conn_state); + if (ret) { + DRM_DEBUG_KMS("[ENCODER:%d:%s] check failed\n", + encoder->base.id, encoder->name); + return ret; + } + } else { + ret = funcs->mode_fixup(encoder, &crtc_state->mode, + &crtc_state->adjusted_mode); + if (!ret) { + DRM_DEBUG_KMS("[ENCODER:%d:%s] fixup failed\n", + encoder->base.id, encoder->name); + return -EINVAL; + } } } |