Re: [PATCH v3] mmc: dw_mmc: add support for the other bit of sdio interrupt

[Heiko Stübner]

Hi Jaehoon,

Am Montag, 3. November 2014, 17:59:58 schrieb Jaehoon Chung:
> Hi, Addy.
> 
> On 11/03/2014 10:20 AM, Addy Ke wrote:
> > The bit of sdio interrupt is 16 in designware implementation,
> > but it is 24 on Rockchip SoCs.This patch add sdio_id0 for the
> > number of slot0 in the SDIO interrupt registers.
> > 
> > Signed-off-by: Addy Ke <addy.ke@xxxxxxxxxxxxxx>
> > ---
> > Changes in v2:
> > - rebase on http://git.linaro.org/git/people/ulf.hansson/mmc.git, next
> > branch Changes in v3:
> > - Remove dts for sdio_id0, just replace this with 8, suggested by Doug
> > - Change to support all Rockchip Socs, suggested by Heiko
> > 
> >  drivers/mmc/host/dw_mmc-rockchip.c | 10 ++++++++++
> >  drivers/mmc/host/dw_mmc.c          | 12 +++++++-----
> >  drivers/mmc/host/dw_mmc.h          |  2 ++
> >  include/linux/mmc/dw_mmc.h         |  3 +++
> >  4 files changed, 22 insertions(+), 5 deletions(-)
> > 
> > diff --git a/drivers/mmc/host/dw_mmc-rockchip.c
> > b/drivers/mmc/host/dw_mmc-rockchip.c index bbb4ec3..b997c8f 100644
> > --- a/drivers/mmc/host/dw_mmc-rockchip.c
> > +++ b/drivers/mmc/host/dw_mmc-rockchip.c
> > @@ -68,14 +68,24 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host,
> > struct mmc_ios *ios)> 
> >  	}
> >  
> >  }
> > 
> > +static int dw_mci_rockchip_parse_dt(struct dw_mci *host)
> > +{
> > +	/* It is slot 8 on Rockchip SoCs */
> > +	host->sdio_id0 = 8;
> > +
> > +	return 0;
> > +}
> 
> Well, function is "__parse_dt__", but this function don't parse anything.
> If All rockchip soc is supported, i think that it can be located to other
> place.

do you have a suggestion for a location?

The only alternative I can see right now would be using the init-hook in 
dw_mci_drv_data or adding a new field to it holding the slot-offset.
[with using the init-hook being my personal preference of the two]


Heiko
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