linux-kernel - Re: [PATCH v3 1/3] drivers/mfd/menf21bmc: introduce MEN 14F021P00 BMC MFD Core driver

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Date:	Fri, 18 Jul 2014 08:25:36 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Andreas Werner <andreas.werner@....de>
Cc:	linux-kernel@...r.kernel.org, sameo@...ux.intel.com,
	cooloney@...il.com, rpurdie@...ys.net, linux-leds@...r.kernel.org,
	wim@...ana.be, linux-watchdog@...r.kernel.org
Subject: Re: [PATCH v3 1/3] drivers/mfd/menf21bmc: introduce MEN 14F021P00
 BMC MFD Core driver

On Thu, 17 Jul 2014, Andreas Werner wrote:
> On Thu, Jul 17, 2014 at 01:41:56PM +0100, Lee Jones wrote:
> > On Thu, 17 Jul 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
> > > 
> > > Signed-off-by: Andreas Werner <andreas.werner@....de>
> > > ---
> > >  drivers/mfd/Kconfig     |  12 +++++
> > >  drivers/mfd/Makefile    |   1 +
> > >  drivers/mfd/menf21bmc.c | 136 ++++++++++++++++++++++++++++++++++++++++++++++++
> > >  3 files changed, 149 insertions(+)
> > >  create mode 100644 drivers/mfd/menf21bmc.c
> > > 
> > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> > > index b8d9ca0..6e2cd14 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
> > > +	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 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.
> > 
> > Can you mention what those devices are here in the help text?
> >
> 
> I've mentioned the sub-devices "LED" and "WDT" but i can also write
> the name to the help text like "menf21bmc_wdt" and "leds-menf21bmc".

Scrap this comment, I was being silly and didn't see "LED and WDT".

[...]

> > > +MODULE_DEVICE_TABLE(i2c, menf21bmc_id_table);
> > > +
> > > +static struct i2c_driver menf21bmc_driver = {
> > > +	.driver		= {
> > > +		.name	= "menf21bmc",
> > > +		.owner	= THIS_MODULE,
> > 
> > Remove this line, it's handled elsewhere.
> 
> Which line? the ".owner" line?

Yeah.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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