On Tue, Nov 02, 2010 at 11:47:47AM +0100, Guennadi Liakhovetski wrote:
> --- a/drivers/video/sh_mobile_hdmi.c
> +++ b/drivers/video/sh_mobile_hdmi.c
> @@ -750,7 +753,38 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
> printk(KERN_CONT "\n");
> #endif
>
> - fb_edid_to_monspecs(edid, &hdmi->monspec);
> + if (!hdmi->edid_blocks) {
> + fb_edid_to_monspecs(edid, &hdmi->monspec);
> + hdmi->edid_blocks = edid[126] + 1;
> +
> + dev_dbg(hdmi->dev, "%d main modes, %d extension blocks\n",
> + hdmi->monspec.modedb_len, hdmi->edid_blocks - 1);
> + } else {
> + dev_dbg(hdmi->dev, "Extension %u detected, DTD start %u\n",
> + edid[0], edid[2]);
> + fb_edid_add_monspecs(edid, &hdmi->monspec);
> + }
> +
Assuming fb_edid_add_monspecs() is changed to hand error values back,
this would probably benefit from being inverted. The fb_edid_to_monspecs()
case looks like a reasonable fallback if fb_did_add_monspecs() fails.
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