Re: [PATCH] ARM: shmobile: kzm9g: add REGULATOR settings to kzm9g_defconfig

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Wednesday, July 04, 2012, Guennadi Liakhovetski wrote:
> Paul, Magnus, Rafael
> 
> What do you think about this? Shall we force the fixed regulator globally 
> on for sh and sh-mobile, shall we only force it on for affected boards, or 
> shall we leave it to the user to shoot themselves in the foot? In general 
> we're not trying to force all Kconfig options on, that a board needs. 
> There are enough ways to have a non-working configuration. E.g., you can 
> leave off the sh I2C driver. Arguably, having to enable the fixed voltage 
> regulator is less obvious, than needing a correct I2C bus driver.
> 
> I think I would go with
> 
> 	select REGULATOR_FIXED_VOLTAGE if REGULATOR
> 
> - ideally on a per-board basis, or arch-wide. Mark doesn't favour at least 
> the latter of these options, IIUC. So, maybe adding entries to defconfigs 
> would indeed sufice for now (but no dummy regulator!)

Well, if arch-wide, then perhaps we don't need REGULATOR_FIXED_VOLTAGE at all
and we can just make things depending on it depend on REGULATOR directly?

The meaning of what you're proposing above is pretty much
"REGULATOR_FIXED_VOLTAGE should be set whenever REGULATOR is" and I guess
REGULATOR_FIXED_VOLTAGE depends on REGULATOR, so they appear to be equivalent.

How much code does really depend on REGULATOR_FIXED_VOLTAGE which is not build
when REGULATOR is set?

Thanks,
Rafael