From: Jernej Skrabec jernej.skrabec@siol.net
Currently driver accepts all resolution which won't work on 4k screens. Add validation callback which limits acceptable resolutions to 297 MHz.
Reviewed-by: Andre Przywara andre.przywara@arm.com Signed-off-by: Jernej Skrabec jernej.skrabec@siol.net Signed-off-by: Andre Przywara andre.przywara@arm.com --- drivers/video/sunxi/sunxi_dw_hdmi.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/video/sunxi/sunxi_dw_hdmi.c b/drivers/video/sunxi/sunxi_dw_hdmi.c index 0b8cefc311e..e3811a2ec15 100644 --- a/drivers/video/sunxi/sunxi_dw_hdmi.c +++ b/drivers/video/sunxi/sunxi_dw_hdmi.c @@ -305,6 +305,12 @@ static int sunxi_dw_hdmi_read_edid(struct udevice *dev, u8 *buf, int buf_size) return dw_hdmi_read_edid(&priv->hdmi, buf, buf_size); }
+static bool sunxi_dw_hdmi_mode_valid(struct udevice *dev, + const struct display_timing *timing) +{ + return timing->pixelclock.typ <= 297000000; +} + static int sunxi_dw_hdmi_enable(struct udevice *dev, int panel_bpp, const struct display_timing *edid) { @@ -388,6 +394,7 @@ static int sunxi_dw_hdmi_probe(struct udevice *dev) static const struct dm_display_ops sunxi_dw_hdmi_ops = { .read_edid = sunxi_dw_hdmi_read_edid, .enable = sunxi_dw_hdmi_enable, + .mode_valid = sunxi_dw_hdmi_mode_valid, };
U_BOOT_DRIVER(sunxi_dw_hdmi) = {