On Fri, Feb 20, 2009 at 02:24:50PM +0100, ext Premi, Sanjeev wrote: > While testing cpuidle (from Kevin's PM beanch) with default configuration for OMAP3EVM, the c-state never transitions from C0. > > Even compiling with minimal drivers did not help. "fck_core1" continues to be active. > Also, the LCD continues to be powered on... Despite compiling out V4L and FB drivers. > > A simple way to turn LCD off would be to implement an inactivity timer. (e.g. serial.c on the pm branch) Blanking seems to me more of a user space policy. You could turn off the LCD backlight from the board file if the FB driver is not configured. --Imre > > The question is - where should this timer be implemented? > - As part of the backlight driver? > OR > - As part of the fb driver? > OR > - Should it be tied to the board initialization? > > Best regards, > Sanjeev > -- > 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 -- 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
