Op 10 mrt 2010, om 19:16 heeft Steve Sakoman het volgende geschreven:
> 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.
Not that you need the DSI_PLL config to get tighter timings to do e.g. 74.25MHz for 720p60. I had to rediscover that this week on DM37xx.....
regards,
Koen--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
