diff options
Diffstat (limited to 'drivers/gpu/drm/drm_fourcc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fourcc.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index 90d2cc8da8eb..f9b6445e846a 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -199,6 +199,31 @@ const struct drm_format_info *drm_format_info(u32 format) EXPORT_SYMBOL(drm_format_info); /** + * drm_get_format_info - query information for a given framebuffer configuration + * @dev: DRM device + * @mode_cmd: metadata from the userspace fb creation request + * + * Returns: + * The instance of struct drm_format_info that describes the pixel format, or + * NULL if the format is unsupported. + */ +const struct drm_format_info * +drm_get_format_info(struct drm_device *dev, + const struct drm_mode_fb_cmd2 *mode_cmd) +{ + const struct drm_format_info *info = NULL; + + if (dev->mode_config.funcs->get_format_info) + info = dev->mode_config.funcs->get_format_info(mode_cmd); + + if (!info) + info = drm_format_info(mode_cmd->pixel_format); + + return info; +} +EXPORT_SYMBOL(drm_get_format_info); + +/** * drm_format_num_planes - get the number of planes for format * @format: pixel format (DRM_FORMAT_*) * |