drm: Add standardized boolean props
Not a new type exposed to userspace, just a standard way to create
them since between range, bitmask and enum there's 3 different ways to
pull out a boolean prop.
Also add the kerneldoc for the recently added new prop types, which
Rob forgot all about.
v2: Fixup kerneldoc, spotted by Rob.
Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index df90048..c0bbb00 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -3810,7 +3810,7 @@
}
/**
- * drm_property_create_range - create a new ranged property type
+ * drm_property_create_range - create a new unsigned ranged property type
* @dev: drm device
* @flags: flags specifying the property type
* @name: name of the property
@@ -3821,8 +3821,8 @@
* object with drm_object_attach_property. The returned property object must be
* freed with drm_property_destroy.
*
- * Userspace is allowed to set any integer value in the (min, max) range
- * inclusive.
+ * Userspace is allowed to set any unsigned integer value in the (min, max)
+ * range inclusive.
*
* Returns:
* A pointer to the newly created property on success, NULL on failure.
@@ -3836,6 +3836,24 @@
}
EXPORT_SYMBOL(drm_property_create_range);
+/**
+ * drm_property_create_signed_range - create a new signed ranged property type
+ * @dev: drm device
+ * @flags: flags specifying the property type
+ * @name: name of the property
+ * @min: minimum value of the property
+ * @max: maximum value of the property
+ *
+ * This creates a new generic drm property which can then be attached to a drm
+ * object with drm_object_attach_property. The returned property object must be
+ * freed with drm_property_destroy.
+ *
+ * Userspace is allowed to set any signed integer value in the (min, max)
+ * range inclusive.
+ *
+ * Returns:
+ * A pointer to the newly created property on success, NULL on failure.
+ */
struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
int flags, const char *name,
int64_t min, int64_t max)
@@ -3845,6 +3863,23 @@
}
EXPORT_SYMBOL(drm_property_create_signed_range);
+/**
+ * drm_property_create_object - create a new object property type
+ * @dev: drm device
+ * @flags: flags specifying the property type
+ * @name: name of the property
+ * @type: object type from DRM_MODE_OBJECT_* defines
+ *
+ * This creates a new generic drm property which can then be attached to a drm
+ * object with drm_object_attach_property. The returned property object must be
+ * freed with drm_property_destroy.
+ *
+ * Userspace is only allowed to set this to any property value of the given
+ * @type. Only useful for atomic properties, which is enforced.
+ *
+ * Returns:
+ * A pointer to the newly created property on success, NULL on failure.
+ */
struct drm_property *drm_property_create_object(struct drm_device *dev,
int flags, const char *name, uint32_t type)
{
@@ -3852,6 +3887,9 @@
flags |= DRM_MODE_PROP_OBJECT;
+ if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC)))
+ return NULL;
+
property = drm_property_create(dev, flags, name, 1);
if (!property)
return NULL;
@@ -3863,6 +3901,28 @@
EXPORT_SYMBOL(drm_property_create_object);
/**
+ * drm_property_create_bool - create a new boolean property type
+ * @dev: drm device
+ * @flags: flags specifying the property type
+ * @name: name of the property
+ *
+ * This creates a new generic drm property which can then be attached to a drm
+ * object with drm_object_attach_property. The returned property object must be
+ * freed with drm_property_destroy.
+ *
+ * This is implemented as a ranged property with only {0, 1} as valid values.
+ *
+ * Returns:
+ * A pointer to the newly created property on success, NULL on failure.
+ */
+struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags,
+ const char *name)
+{
+ return drm_property_create_range(dev, flags, name, 0, 1);
+}
+EXPORT_SYMBOL(drm_property_create_bool);
+
+/**
* drm_property_add_enum - add a possible value to an enumeration property
* @property: enumeration property to change
* @index: index of the new enumeration