Hi, On Sun, 2010-05-23 at 14:09 +0200, ext Janusz Krzysztofik wrote: > Monday 17 May 2010 03:20:13 Janusz Krzysztofik wrote: > > I was observing the following error messages on my OMAP1 based Amstrad > > Delta board when first changing from text to graphics mode or vice versa > > after the LCD display had been blanked: > > omapfb omapfb: timeout waiting for FRAME DONE > > with a followup error message while unblanking it back: > > omapfb omapfb: resetting (status 0xffffffb2,reset count 1) > > As a visible result, image pixels happened to be shifted by a few bits, > > giving wrong colors. > > > > Examining the code, I found that this problem occures when an OMAP1 > > internal LCD controller is disabled from omap_lcdc_suspend() and then a > > subsequent omap_lcdc_setup_plane() calls disable_controller() again. This > > potentially error provoking behaviour is triggered by the lcdc.update_mode > > flag being kept at OMAP_AUTO_UPDATE, regardless of the controller and panel > > being suspended. > > > > This patch tries to correct the problem by replacing both > > omap_lcdc_suspend() and omap_lcdc_resume() function bodies with single > > calls to > > omap_lcdc_set_update_mode() with a respective OMAP_UPDATE_DISABLE or > > OMAP_AUTO_UPDATE argument. As a result, exactly the same lower level > > operations are performed, with addition of changing the lcdc.update_mode > > flag to a value better suited for the controller state. This prevents any > > further calls to disable_controller() from omap_lcdc_setup_plane() while > > the display is suspended. > > Hi, > > One more week of successfull, trouble-free testing on my side. Although there > were no other test reports, no objections nor change requests were raised as > well on this relatively simple and straightforward patch. Could we then agree > on it being accepted for inclusion? Tomi? Yep, looks ok to me. Applied to DSS tree. Tomi -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
