[PATCH 1/4] mfd: mc13783: Take care of semantic inversion between read and write value of two bits in POWER_MISCELLANEUS register.

Mark Brown
2009-12-12T18:11:43Z

On Sat, Dec 12, 2009 at 05:48:43PM +0100, Alberto Panizzo wrote:
> MC13783_REGCTRL_PWGTnSPIEN controls the states of the corresponding
> PWGTn_DRV output.
> Reading 1 on the corresponding bit mean that the output is enabled
> Writing 1 on the corresponding bit disable that output!

> So, if not asked directly to modify those bits, write the inverted
> value.

Some comments in the code explaining what's going on wouild help a lot -
it's not going to be obvious to a reader why the code is doing this and
may well confuse them.