Re: [PATCH 11/14] regulator: s2mps11: Add opmode for S2MPS14 regulators

Krzysztof Kozlowski
2014-02-12T10:05:43Z

On Wed, 2014-02-12 at 09:21 +0000, Lee Jones wrote:
> > S2MPS11/S2MPS14 regulators support different modes of operation:
> > - Always off;
> > - On/Off controlled by pin/GPIO (PWREN/LDOEN/EMMCEN);
> > - Always on;
> > This is very similar to S5M8767 regulator driver which also supports
> > opmodes (although S5M8767 have also low-power mode).
> >
> > This patch adds parsing the operation mode from DTS by reading a
> > "op_mode" property from regulator child node.
> >
> > The op_mode is then used for enabling the S2MPS14 regulators.
> > On S2MPS11 the DTS "op_mode" property is parsed but not used for
> > enabling, as this was not tested.
> >
> > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> > Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
> > Cc: Mark Brown <broonie@kernel.org>
> > Cc: Liam Girdwood <lgirdwood@gmail.com>
> > ---
> > drivers/regulator/s2mps11.c | 98 ++++++++++++++++++++++++++++++++++-
> > include/linux/mfd/samsung/s2mps14.h | 17 ++++++
> > 2 files changed, 114 insertions(+), 1 deletion(-)
>
> <snip>
>
> > diff --git a/include/linux/mfd/samsung/s2mps14.h b/include/linux/mfd/samsung/s2mps14.h
> > index c4bfb8edc836..69582ae4c971 100644
> > --- a/include/linux/mfd/samsung/s2mps14.h
> > +++ b/include/linux/mfd/samsung/s2mps14.h
> > @@ -149,4 +149,21 @@ enum s2mps14_regulators {
> > #define S2MPS14_LDO_N_VOLTAGES (S2MPS14_LDO_VSEL_MASK + 1)
> > #define S2MPS14_BUCK_N_VOLTAGES (S2MPS14_BUCK_VSEL_MASK + 1)
> >
> > +#define S2MPS14_ENCTRL_SHIFT 6
> > +#define S2MPS14_ENCTRL_MASK (0x3 << S2MPS14_ENCTRL_SHIFT)
> > +
> > +/*
> > + * Values of regulator operation modes match device tree bindings.
> > + */
> > +enum s2mps14_regulator_opmode {
> > + S2MPS14_REGULATOR_OPMODE_OFF = 0,
> > + S2MPS14_REGULATOR_OPMODE_ON = 1,
> > + /* Reserved for compatibility with S5M8767 where this
> > + * is a low power mode. */
>
> Sorry to be an arse, but can you use proper multi-line comments
> please?
>
> The preferred style for long (multi-line) comments is:
>
> /*
> * This is the preferred style for multi-line
> * comments in the Linux kernel source code.
> * Please use it consistently.
> *
> * Description: A column of asterisks on the left side,
> * with beginning and ending almost-blank lines.
> */

No problem, I'll fix it. The preferred comment in such case had 4 lines
instead of 2 so it looked a little weird to me :).