On Mon, Jan 19, 2009 at 12:39 PM, Belisko Marek <[email protected]> wrote: > Hi, > > On Mon, Jan 19, 2009 at 12:10 PM, pHilipp Zabel <[email protected]> > wrote: >> Hi Marek, >> >> On Mon, Jan 19, 2009 at 11:34 AM, Belisko Marek <[email protected]> >> wrote: >>> Hi, >>> >>> thanks for help. Ialreadyread a whole documentation but still ca't >>> find a clue how to get pins for TFT display. >>> In attachment you can find my log. Could you please lookon this and >>> give some proposal how to understand. >> >> What pins are you looking for, exactly? SPV C100 is HTC Oxygen = >> omap850 based, right? >> I think all those omap850 phones have the TFT connected to the >> internal LCD controller, so I'd propose to have a look at the LCDC >> register settings (see drivers/video/omap/lcdc.c for the physical >> register addresses) and try to recreate them in a custom struct >> lcd_panel for omapfb. IIRC no GPIOs are involved. > > After looking to kernel code seems no GPIOS for LCD are used in code > (they're only defined - using source for typhoon) soyou're right.
Or maybe not - looking at the code for htcartemis, there are some GPIOs involved in turning on/off power to the LCD, but there they are on the GPIO extender chip: http://git.linuxtogo.org/?p=groups/mobile-linux/kernel.git;a=blob;f=arch/arm/mach-omap1/htcartemis/htcartemis_lcd.c;h=9e5241e329c18e5102de0ddd408c79287821e797;hb=ce3552ca024ed17381fead3a7451a31737d6e33f If you're already seeing strange colours, the LCD is still turned on from wince - you should be fine for now... > I'm trying to fill lcd_panel struct but there'is missing some infos. > E.g:how fill values for : pixel clock, horizontal synchronization > pulse width, horizontal front porch, horizontal back porch, vertical > synchronization pulse width, vertical front porch, vertical back > porch, ac-bias pin frequency. Look at how setup_regs() in lcdc.c fills the OMAP_LCDC_* registers. If you dump the LCDC registers with haret, you should be able to recreate the settings that result in those register values when run through setup_regs(). Or, if you're impatient, you could go quick&dirty and directly overwrite the registers at the end of setup_regs() with the values that you got from haret (just to test). > It would be possible to get it from Haret? Something like pd 0xfffce000 0x20 to dump the LCDC regs? > Values from typhoon isn't working (display shows only strange colours). > > If you have some spec about omap 850 would be helpful also :) I wish. There is the OMAP850 TRM floating around, but it only shows the differences between OMAP730 and OMAP850. As OMAP850 is very similar to the older one, it's not that much. If anybody has access to the OMAP730 TRM, I'd be severely interested. A lot of useful register information can already be found in the kernel source, though. regards Philipp _______________________________________________ Haret mailing list [email protected] https://handhelds.org/mailman/listinfo/haret
