Re: [PATCH v4 1/4] drivers/mfd/menf21bmc: introduce MEN 14F021P00 BMC MFD Core driver

Andreas Werner
2014-08-21T13:08:49Z

On Thu, Aug 21, 2014 at 12:30:46PM +0100, Lee Jones wrote:
> On Wed, 13 Aug 2014, Andreas Werner wrote:
> > The MEN 14F021P00 Board Management Controller provides an
> > I2C interface to the host to access the feature implemented in the BMC.
> > The BMC is a PIC Microntroller assembled on CPCI Card from MEN Mikroelektronik
> > and on a few Box/Display Computer.
> >
> > Added MFD Core driver, supporting the I2C communication to the device.
> >
> > The MFD driver currently supports the following features:
> > - Watchdog
> > - LEDs
> > - Hwmon (voltage monitoring)
> >
> > Signed-off-by: Andreas Werner <andreas.werner@men.de>
> > ---
> > drivers/mfd/Kconfig | 12 +++++
> > drivers/mfd/Makefile | 1 +
> > drivers/mfd/menf21bmc.c | 132 ++++++++++++++++++++++++++++++++++++++++++++++++
> > 3 files changed, 145 insertions(+)
> > create mode 100644 drivers/mfd/menf21bmc.c
> >
> > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> > index b8d9ca0..bf155b9 100644
> > --- a/drivers/mfd/Kconfig
> > +++ b/drivers/mfd/Kconfig
> > @@ -453,6 +453,18 @@ config MFD_MAX8998
> > additional drivers must be enabled in order to use the functionality
> > of the device.
> >
> > +config MFD_MENF21BMC
> > + tristate "MEN 14F021P00 Board Management Controller Support"
> > + depends on I2C=y
>
> Why must I2C be built-in?

Sorry my mistake, I2C must not be built in.

>
> > + select MFD_CORE
> > + help
> > + Say yes here to add support for the MEN 14F021P00 BMC
> > + which is a Board Management Controller connected to the I2C bus.
> > + The device supports multiple sub-devices like LED, HWMON and WDT.
> > + This driver provides common support for accessing the devices;
> > + additional drivers must be enabled in order to use the
> > + functionality of the BMC device.
> > +
>
> Apart from that the patch looks good to me.
>
> I'm assuming this can go in via the MFD tree by itself?

Yes why not.
Do you want to have a single patch for the MFD or
is it better to wait for the other Subsystem maintainer that I
can resend a patch v5?

Regards
Andy

>
> Acked-by: Lee Jones <lee.jones@linaro.org>
>
> --
> Lee Jones
> Linaro STMicroelectronics Landing Team Lead
> Linaro.org │ Open source software for ARM SoCs
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