}
EXPORT_SYMBOL(drm_get_format_name);
-/**
- * drm_format_info - query information for a given format
- * @format: pixel format (DRM_FORMAT_*)
- *
- * Returns:
- * The instance of struct drm_format_info that describes the pixel format, or
- * NULL if the format is unsupported.
+/*
+ * Internal function to query information for a given format. See
+ * drm_format_info() for the public API.
*/
-const struct drm_format_info *drm_format_info(u32 format)
+const struct drm_format_info *__drm_format_info(u32 format)
{
static const struct drm_format_info formats[] = {
{ .format = DRM_FORMAT_C8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
return NULL;
}
+
+/**
+ * drm_format_info - query information for a given format
+ * @format: pixel format (DRM_FORMAT_*)
+ *
+ * The caller should only pass a supported pixel format to this function.
+ * Unsupported pixel formats will generate a warning in the kernel log.
+ *
+ * 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_format_info(u32 format)
+{
+ const struct drm_format_info *info;
+
+ info = __drm_format_info(format);
+ WARN_ON(!info);
+ return info;
+}
EXPORT_SYMBOL(drm_format_info);
/**
const struct drm_format_info *info;
int i;
- info = drm_format_info(r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN);
+ info = __drm_format_info(r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN);
if (!info) {
char *format_name = drm_get_format_name(r->pixel_format);
DRM_DEBUG_KMS("bad framebuffer format %s\n", format_name);
u8 vsub;
};
+const struct drm_format_info *__drm_format_info(u32 format);
const struct drm_format_info *drm_format_info(u32 format);
uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, int *bpp);