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drm: Add support_bits parameter to drm_property_create_bitmask()

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Make drm_property_create_bitmask() a bit more generic by allowing the
caller to specify which bits are in fact supported. This allows multiple
callers to use the same enum list, but still create different versions
of the same property with different list of supported bits.

v2: Populate values[] array as non-sparse
    Make supported_bits 64bit
    Fix up omapdrm call site (Rob)

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Sagar Kamble <sagar.a.kamble@intel.com>
Acked-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-07-08 10:31:52 +05:30 committed by Daniel Vetter
parent 0659696196
commit 7689ffb32f
3 changed files with 19 additions and 6 deletions
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17
drivers/gpu/drm/drm_crtc.c
View File

@ -3395,19 +3395,28 @@ EXPORT_SYMBOL(drm_property_create_enum);
struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
int flags, const char *name,
const struct drm_prop_enum_list *props,
int num_values)
int num_props,
uint64_t supported_bits)
{
struct drm_property *property;
int i, ret;
int i, ret, index = 0;
int num_values = hweight64(supported_bits);
flags |= DRM_MODE_PROP_BITMASK;
property = drm_property_create(dev, flags, name, num_values);
if (!property)
return NULL;
for (i = 0; i < num_props; i++) {
if (!(supported_bits & (1ULL << props[i].type)))
continue;
for (i = 0; i < num_values; i++) {
ret = drm_property_add_enum(property, i,
if (WARN_ON(index >= num_values)) {
drm_property_destroy(dev, property);
return NULL;
}
ret = drm_property_add_enum(property, index++,
props[i].type,
props[i].name);
if (ret) {

5
drivers/gpu/drm/omapdrm/omap_plane.c
View File

@ -317,7 +317,10 @@ void omap_plane_install_properties(struct drm_plane *plane,
{ DRM_REFLECT_Y, "reflect-y" },
};
prop = drm_property_create_bitmask(dev, 0, "rotation",
props, ARRAY_SIZE(props));
props, ARRAY_SIZE(props),
BIT(DRM_ROTATE_0) | BIT(DRM_ROTATE_90) |
BIT(DRM_ROTATE_180) | BIT(DRM_ROTATE_270) |
BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y));
if (prop == NULL)
return;
priv->rotation_prop = prop;

3
include/drm/drm_crtc.h
View File

@ -1006,7 +1006,8 @@ extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int
struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
int flags, const char *name,
const struct drm_prop_enum_list *props,
int num_values);
int num_props,
uint64_t supported_bits);
struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
const char *name,
uint64_t min, uint64_t max);