On Tue, Mar 9, 2010 at 11:58 AM, Steve Sakoman <sakoman@xxxxxxxxx> wrote:
> I just updated all my Beagle and Overo DSS patches to apply on the
> latest linux-omap head.
>
> I ran into a slight issue with parsing defaults, but saw that Tomi had
> already posted a workaround for that.
>
> With that patch applied I get pretty good results until I try to do
> something like play a DVD or display video from a webcam.
>
> At that point I get a kernel panic. See below.
I did a little more research on this.
The issue occurs in the following section of code in
drivers/video/omap2/dss/dispc.c:
unsigned long dispc_fclk_rate(void)
{
unsigned long r = 0;
if (dss_get_dispc_clk_source() == DSS_SRC_DSS1_ALWON_FCLK)
r = dss_clk_get_rate(DSS_CLK_FCK1);
else
#ifdef CONFIG_OMAP2_DSS_DSI
r = dsi_get_dsi1_pll_rate();
#else
BUG();
#endif
return r;
}
Since my machines don't have DSI displays CONFIG_OMAP2_DSS_DSI is not
defined and the BUG() call is triggered.
I don't know enough about what *should* be happening here to propose a
fix, but I'll continue looking.
Steve
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