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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-07-25 14:02:04 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-08-08 14:45:09 +0200 |
| commit | 144a7999d6334be5237d5926ab19c56bc24d0204 (patch) | |
| tree | 0d64df2f9de89b0c3632d88313f0ac17b55a185f /drivers/gpu/drm/drm_connector.c | |
| parent | 4a97a3da420b82f967083a31fd80706e56ecabf9 (diff) | |
| download | lwn-144a7999d6334be5237d5926ab19c56bc24d0204.tar.gz lwn-144a7999d6334be5237d5926ab19c56bc24d0204.zip | |
drm: Handle properties in the core for atomic drivers
The reason behind the original indirection through the helper
functions was to allow existing drivers to overwrite how they handle
properties. For example when a vendor-specific userspace had
expectations that didn't match atomic. That seemed likely, since
atomic is standardizing a _lot_ more of the behaviour of a kms driver.
But 20 drivers later there's no such need at all. Worse, this forces
all drivers to hook up the default behaviour, breaking userspace if
they forget to do that. And it forces us to export a bunch of core
function just for those helpers.
And finally, these helpers are the last places using
drm_atomic_legacy_backoff() and the implicit acquire_ctx.
This patch here just implements the new behaviour and updates the
docs. Follow-up patches will garbage-collect all the dead code.
v2: Fixup docs even better!
v3: Make it actually work ...
v4: Drop the uses_atomic_modeset() checks from the previous patch
again, since they're now moved up in the callchain.
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org> (v3)
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170725120204.2107-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/drm_connector.c')
| -rw-r--r-- | drivers/gpu/drm/drm_connector.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 0e9e3161bdd0..ba9f36cef68c 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -717,9 +717,9 @@ DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, * drivers, it remaps to controlling the "ACTIVE" property on the CRTC the * connector is linked to. Drivers should never set this property directly, * it is handled by the DRM core by calling the &drm_connector_funcs.dpms - * callback. Atomic drivers should implement this hook using - * drm_atomic_helper_connector_dpms(). This is the only property standard - * connector property that userspace can change. + * callback. For atomic drivers the remapping to the "ACTIVE" property is + * implemented in the DRM core. This is the only standard connector + * property that userspace can change. * PATH: * Connector path property to identify how this sink is physically * connected. Used by DP MST. This should be set by calling @@ -1225,7 +1225,7 @@ int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, } else if (connector->funcs->set_property) ret = connector->funcs->set_property(connector, property, value); - if (!ret && !drm_drv_uses_atomic_modeset(property->dev)) + if (!ret) drm_object_property_set_value(&connector->base, property, value); return ret; } |