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authorNeil Armstrong <narmstrong@baylibre.com>2019-07-04 16:52:07 +0300
committerAnatolij Gustschin <agust@denx.de>2019-07-29 01:21:49 +0300
commiteb4ee4e436287a69de7a87ea3070fa52bd327602 (patch)
tree649df3e48b22677e8ef313c5f223c4ef0ec0b0bd
parent1c1ed441b0d1d7d5fbf02cf89a390c04b18f8ba3 (diff)
downloadu-boot-eb4ee4e436287a69de7a87ea3070fa52bd327602.tar.xz
video: display: use edid_get_timing_validate() variant to filter supported EDID modes
Introduce a new display op, mode_valid() to be used with the newly introduced edid_get_timing_validate() function, to filter supported monitor timings if handled by the display driver. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
-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)