diff options
author | Matt Roper <matthew.d.roper@intel.com> | 2015-01-21 16:35:43 -0800 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-01-27 09:56:15 +0100 |
commit | a98b3431afcbc66986fcf375fa168df1d9d28bc0 (patch) | |
tree | 5469ea7a01263fb592a2cd8917b705bef912ac4d /drivers/gpu/drm/i915/intel_atomic_plane.c | |
parent | 65a3fea0a6f02950f22f983755ce8145b73a007d (diff) | |
download | op-kernel-dev-a98b3431afcbc66986fcf375fa168df1d9d28bc0.zip op-kernel-dev-a98b3431afcbc66986fcf375fa168df1d9d28bc0.tar.gz |
drm/i915: Add .atomic_{get, set}_property() entrypoints to planes
When we flip on the DRIVER_ATOMIC bit, the DRM core will start calling
this entrypoint to set and lookup driver-specific plane property values,
rather than maintaining a shadow copy in object->properties.
Note that although we add these functions to the plane vtable, they will
not yet be called. Future patches that switch our .set_property()
handler and/or enable full atomic functionality are required before
these code paths will be executed.
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_atomic_plane.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_atomic_plane.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c index d9d4306..4a3914f 100644 --- a/drivers/gpu/drm/i915/intel_atomic_plane.c +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c @@ -177,3 +177,61 @@ const struct drm_plane_helper_funcs intel_plane_helper_funcs = { .atomic_update = intel_plane_atomic_update, }; +/** + * intel_plane_atomic_get_property - fetch plane property value + * @plane: plane to fetch property for + * @state: state containing the property value + * @property: property to look up + * @val: pointer to write property value into + * + * The DRM core does not store shadow copies of properties for + * atomic-capable drivers. This entrypoint is used to fetch + * the current value of a driver-specific plane property. + */ +int +intel_plane_atomic_get_property(struct drm_plane *plane, + const struct drm_plane_state *state, + struct drm_property *property, + uint64_t *val) +{ + struct drm_mode_config *config = &plane->dev->mode_config; + + if (property == config->rotation_property) { + *val = state->rotation; + } else { + DRM_DEBUG_KMS("Unknown plane property '%s'\n", property->name); + return -EINVAL; + } + + return 0; +} + +/** + * intel_plane_atomic_set_property - set plane property value + * @plane: plane to set property for + * @state: state to update property value in + * @property: property to set + * @val: value to set property to + * + * Writes the specified property value for a plane into the provided atomic + * state object. + * + * Returns 0 on success, -EINVAL on unrecognized properties + */ +int +intel_plane_atomic_set_property(struct drm_plane *plane, + struct drm_plane_state *state, + struct drm_property *property, + uint64_t val) +{ + struct drm_mode_config *config = &plane->dev->mode_config; + + if (property == config->rotation_property) { + state->rotation = val; + } else { + DRM_DEBUG_KMS("Unknown plane property '%s'\n", property->name); + return -EINVAL; + } + + return 0; +} |