Op 10 mrt 2010, om 19:16 heeft Steve Sakoman het volgende geschreven: > On Tue, Mar 9, 2010 at 11:58 AM, Steve Sakoman <[email protected]> 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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
