Re: [PATCH 04/10 v3] ARM: mach-shmobile: add fixed voltage regulators to armadillo800eva

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

On Wednesday, June 27, 2012, Guennadi Liakhovetski wrote:
> On Wed, 27 Jun 2012, Guennadi Liakhovetski wrote:
> 
> > On armadillo800eva provide a 3.3V supply for its SD/MMC-card interfaces.
> > 
> > Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
> > ---
> >  arch/arm/mach-shmobile/board-armadillo800eva.c |   16 ++++++++++++++++
> >  1 files changed, 16 insertions(+), 0 deletions(-)
> > 
> > diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
> > index 9e37026..819cee5 100644
> > --- a/arch/arm/mach-shmobile/board-armadillo800eva.c
> > +++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
> > @@ -28,6 +28,8 @@
> >  #include <linux/platform_device.h>
> >  #include <linux/gpio.h>
> >  #include <linux/gpio_keys.h>
> > +#include <linux/regulator/fixed.h>
> > +#include <linux/regulator/machine.h>
> >  #include <linux/sh_eth.h>
> >  #include <linux/videodev2.h>
> >  #include <linux/usb/renesas_usbhs.h>
> > @@ -407,6 +409,17 @@ static struct platform_device gpio_keys_device = {
> >  	},
> >  };
> >  
> > +/* Fixed 3.3V regulator to be used by SDHI0, SDHI1, MMCIF */
> > +static struct regulator_consumer_supply fixed3v3_power_consumers[] > > +{
> > +	REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
> > +	REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"),
> > +	REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
> > +	REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.1"),
> > +	REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
> > +	REGULATOR_SUPPLY("vqmmc", "sh_mmcif.0"),
> 
> There is a slight problem with this patch: a1 (r8a7740) SoCs are currently 
> the only ones registering their MMCIF device without an index, i.e., with 
> .id = -1. This is reflected in board-armadillo800eva.c and in 
> clock-r8a7740.c. This patch erroneously uses sh_mmcif.0 for device name, 
> which is also what every single other ARM and sh platform in the mainline, 
> using mmcif, AFAICS, currently does.
> 
> Therefore question: Magnus, Rafael: what would you prefer - fix the above 
> regulator entries to not use a device ID, or unify a1 with other SoCs to 
> use .id = 0?

I wonder what's going to be more straightforward?

Rafael