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-rw-r--r--drivers/video/display-uclass.c15
-rw-r--r--include/display.h10
2 files changed, 24 insertions, 1 deletions
diff --git a/drivers/video/display-uclass.c b/drivers/video/display-uclass.c
index 99ef5e76f5..1a29ce5d85 100644
--- a/drivers/video/display-uclass.c
+++ b/drivers/video/display-uclass.c
@@ -37,6 +37,17 @@ int display_enable(struct udevice *dev, int panel_bpp,
return 0;
}
+static bool display_mode_valid(void *priv, const struct display_timing *timing)
+{
+ struct udevice *dev = priv;
+ struct dm_display_ops *ops = display_get_ops(dev);
+
+ if (ops && ops->mode_valid)
+ return ops->mode_valid(dev, timing);
+
+ return true;
+}
+
int display_read_timing(struct udevice *dev, struct display_timing *timing)
{
struct dm_display_ops *ops = display_get_ops(dev);
@@ -53,7 +64,9 @@ int display_read_timing(struct udevice *dev, struct display_timing *timing)
if (ret < 0)
return ret;
- return edid_get_timing(buf, ret, timing, &panel_bits_per_colour);
+ return edid_get_timing_validate(buf, ret, timing,
+ &panel_bits_per_colour,
+ display_mode_valid, dev);
}
bool display_in_use(struct udevice *dev)
diff --git a/include/display.h b/include/display.h
index 16f317c9c8..66294616ea 100644
--- a/include/display.h
+++ b/include/display.h
@@ -80,6 +80,16 @@ struct dm_display_ops {
*/
int (*enable)(struct udevice *dev, int panel_bpp,
const struct display_timing *timing);
+
+ /**
+ * mode_valid() - Check if mode is supported
+ *
+ * @dev: Device to enable
+ * @timing: Display timings
+ * @return true if supported, false if not
+ */
+ bool (*mode_valid)(struct udevice *dev,
+ const struct display_timing *timing);
};
#define display_get_ops(dev) ((struct dm_display_ops *)(dev)->driver->ops)