On Mon, Dec 05, 2011 at 04:06:17PM +0530, Thomas Abraham wrote: > On 5 December 2011 15:40, Kyungmin Park <kmpark@xxxxxxxxxxxxx> wrote: > > Recent regulator discussion. it should be failed instead fall through > > gracefully. > Ok. But in this case, there could be boards that do not use a > regulator for the lcd/display interface. Is it mandatory for fail if > regulator is not found. Sorry, I have not read through the regulator > discussion. The boards should supply a fixed voltage regulator representing the supply (or use CONFIG_REGULATOR_DUMMY to substitute in a dummy regulator when not needed). Sascha Hauer had some patches to add a flag that could be set to enable this mode on init rather than through Kconfig but they needed a bit of cleanup, not sure what the status is there. > The constraint 'apply_uV' cannot be expressed with a device tree. So > there has be a mechanism to set the required output voltage for a > regulator. It's not an option to not have it with device tree - if there's a single voltage specified apply_uV is assumed. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html