On Wed, Dec 18, 2013 at 10:23:54AM -0800, Tony Lindgren wrote: > * Tomi Valkeinen <tomi.valkeinen@xxxxxx> [131218 05:56]: > > I don't have an LDP board at hand, and I wasn't able to find out anything from > > the logs. > > > > I think I should change omapfb to print something if it's probed succesfully, > > as the deferred probing makes finding out if something is probed fine or not > > quite murky. Without deferred probing, it was simpler: no errors -> the driver > > must be (most likely) ok. > > > > Although... In an earlier log, where there was no panel driver, the log has > > these errors: > > > > Error opening /dev/fb0: No such device > > > > There are none in the latest log, which makes me guess the omapfb has been > > probed, and fb0 is actually there. But the X is still dying for some reason... > > > > I'll look at this more. Maybe someone in our team can find a board to test. > > Hmm I had the framebuffer working with DT on LDP after fixing the twl4030 > gpio regression with 0b2aa8bed3e1 (gpio: twl4030: Fix regression for twl > gpio output) using this pdata quirks patch: > > [PATCH 3/5] ARM: OMAP2+: Add DT init code for DPI displays and make omap3 LDP to use it > > AFAIK the pdata hack above should not be needed now, but I have not tried > with Tomi's DSS DT patches yet. > > Tomi do you have some sample panel dpi .dts entry somewhere for the LDP I > could try at some point? > > Russell, maybe all you're missing is just omapfb.vram=0:2M,1:5M or similar > from your kernel cmdline? Note that I'm trying to get non-DT stuff working properly here first, in such a state that it has done in the past with mainline kernels. This is quite an old regression, but it's still a regression nevertheless. I've just built and booted a kernel with the backlight support in. No change. -- 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
