return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.j : 0;
}
+static void
+get_timing_level(const struct detailed_timing *descriptor, void *data)
+{
+ int *res = data;
+
+ if (!is_display_descriptor(descriptor, EDID_DETAIL_MONITOR_RANGE))
+ return;
+
+ BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.flags) != 10);
+
+ switch (descriptor->data.other_data.data.range.flags) {
+ case DRM_EDID_DEFAULT_GTF_SUPPORT_FLAG:
+ *res = LEVEL_GTF;
+ break;
+ case DRM_EDID_SECONDARY_GTF_SUPPORT_FLAG:
+ *res = LEVEL_GTF2;
+ break;
+ case DRM_EDID_CVT_SUPPORT_FLAG:
+ *res = LEVEL_CVT;
+ break;
+ default:
+ break;
+ }
+}
+
/* Get standard timing level (CVT/GTF/DMT). */
static int standard_timing_level(const struct drm_edid *drm_edid)
{
const struct edid *edid = drm_edid->edid;
- if (edid->revision >= 2) {
- if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
- return LEVEL_CVT;
- if (drm_gtf2_hbreak(drm_edid))
- return LEVEL_GTF2;
- if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
- return LEVEL_GTF;
+ if (edid->revision >= 4) {
+ /*
+ * If the range descriptor doesn't
+ * indicate otherwise default to CVT
+ */
+ int ret = LEVEL_CVT;
+
+ drm_for_each_detailed_block(drm_edid, get_timing_level, &ret);
+
+ return ret;
+ } else if (edid->revision >= 3 && drm_gtf2_hbreak(drm_edid)) {
+ return LEVEL_GTF2;
+ } else if (edid->revision >= 2) {
+ return LEVEL_GTF;
+ } else {
+ return LEVEL_DMT;
}
- return LEVEL_DMT;
}
/*