From: Jernej Skrabec Date: Thu, 22 Apr 2021 00:14:26 +0000 (+0100) Subject: video: sunxi: Add mode_valid callback to sunxi_dw_hdmi X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=3b9021a545d235f6bf53f37140e173318d79f9f8;p=u-boot.git video: sunxi: Add mode_valid callback to sunxi_dw_hdmi 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 Signed-off-by: Jernej Skrabec Signed-off-by: Andre Przywara --- diff --git a/drivers/video/sunxi/sunxi_dw_hdmi.c b/drivers/video/sunxi/sunxi_dw_hdmi.c index 0b8cefc311..e3811a2ec1 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) = {