I updated the kernel again. Now the kernel from omapzoom.org is OK, but the kernel from "source.mvista.com/git/linux-omap-2.6.git" still can't work. The LCD drivers in omapzoom.org and in linux-omap-2.6 use different files. the LCD driver in omapzoom.org is omap_disp_out.c and omap_fb.c while the driver in linux-omap-2.6 is lcd_2430sdp.c and omapfb_main.c. The following MACRO are defined differently. Can anyone tell me why ? In the file omap_disp_out.c in omapzoom.org : 113 #define LCD_PANEL_ENABLE_GPIO 5 114 #define LCD_PANEL_BACKLIGHT_GPIO 8 In the file lcd_2430sdp.c in linux-omap-2.6: 35 #define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 24 36 #define SDP3430_LCD_PANEL_ENABLE_GPIO 28 Why are they defined differently? Thanks Stanley. On Wed, 2008-08-27 at 12:43 +0300, Felipe Balbi wrote: > On Wed, Aug 27, 2008 at 05:28:36PM +0800, ext stanley.miao wrote: > > Hardware: > > Mainboard: 750-2094-001(C) > > Display board: 750-2081-101(B) > > > > Software: > > the lastest kernel from linux-omap-2.6 and from omapzoom.org. > > > > The linux bootup logo is green, and LCD is dark. It looks like backlight > > disabled. > > > > I commented the following two sentences in lcd_2430.c, there is still > > the same thing. It seems these two sentences doesn't work. > > > > 96 omap_set_gpio_dataout(enable_gpio, 1); > > 97 omap_set_gpio_dataout(backlight_gpio, 1); > > > > Both the the latest kernels from omapzoom.org and linux-omap-2.6 have > > this problem. However, the old version in linux-omap-2.6, 2.6.21, > > doesn't have this problem. > > Cool could you bisect and try to find the commit that broke it ? > > $ git bisect start > $ git bisect good v2.6.21-omap1 > $ git bisect bad > > Should help you. Read git help bisect for more information. When you > find the exact commit that broke lcd_2430.c, report here with the commit > id. > > Just a note, if you can't build the bisect point, reset to some points > before and try again until you find a commit that builds, do not mark > them as bad. > -- 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
