* Sourav Poddar <sourav.poddar@xxxxxx> [131128 02:10]: > On Thursday 28 November 2013 02:58 PM, Peter Ujfalusi wrote: > >Since in DT booted kernel dummy regulators are no longer supported we need > >to provide valid phandle for the regulator needed by the backlight. > >On the board VBAT is used to power the LCD backlight(s). > > > >Signed-off-by: Peter Ujfalusi<peter.ujfalusi@xxxxxx> > >--- > >Hi, > > > >This patch is needed for 3.13 to get the LCD backlight to work again. > Is this usage of power supply a mandatory requirement? > > There is a thread which discusses this issue[1]: > http://www.spinics.net/lists/arm-kernel/msg288215.html > > According to the above, regulator framework have support in 3.13-rc1 > to returns > a dummy regulator if there is none specified in the dts data. > Thierry told that there seems to be a bug in regulator in handling > these case. > > Though, I also posted a patch on pwm a couple of days ago[2] > [2]: https://patchwork.kernel.org/patch/3246711/ > > I posted it without "power-supply" by testing it with the > solution proposed in [1]. > If I dont use the solution[1], it fails for me also. Hmm so if this is not needed, I'll mark this thread as read in my inbox. If you guys need it please repost. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
