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drm: add drm_property_change_is_valid 

Move code from drm_mode_connector_property_set_ioctl to a new
function, so we can reuse this code when we add crtc properties.

Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Tested-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Paulo Zanoni 2012-05-15 18:08:59 -03:00 committed by Dave Airlie
parent 4ab2c7f154
commit 26a3481586
1 changed files with 19 additions and 20 deletions
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39
drivers/gpu/drm/drm_crtc.c
View File

@ -3074,6 +3074,24 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector,
}
EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
static bool drm_property_change_is_valid(struct drm_property *property,
__u64 value)
{
if (property->flags & DRM_MODE_PROP_IMMUTABLE)
return false;
if (property->flags & DRM_MODE_PROP_RANGE) {
if (value < property->values[0] || value > property->values[1])
return false;
return true;
} else {
int i;
for (i = 0; i < property->num_values; i++)
if (property->values[i] == value)
return true;
return false;
}
}
int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
@ -3110,28 +3128,9 @@ int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
}
property = obj_to_property(obj);
if (property->flags & DRM_MODE_PROP_IMMUTABLE)
if (!drm_property_change_is_valid(property, out_resp->value))
goto out;
if (property->flags & DRM_MODE_PROP_RANGE) {
if (out_resp->value < property->values[0])
goto out;
if (out_resp->value > property->values[1])
goto out;
} else {
int found = 0;
for (i = 0; i < property->num_values; i++) {
if (property->values[i] == out_resp->value) {
found = 1;
break;
}
}
if (!found) {
goto out;
}
}
/* Do DPMS ourselves */
if (property == connector->dev->mode_config.dpms_property) {
if (connector->funcs->dpms)