[U-Boot] [linux-sunxi] [PATCH 7/9] mmc: sunxi: Honour non-removable property in DT

[Andre Przywara <andre.przywara@arm.com>]

On Fri, 25 Jan 2019 12:46:38 +0530
Jagan Teki <jagan@amarulasolutions.com> wrote:

> On Sat, Jan 19, 2019 at 7:03 AM Andre Przywara
> <andre.przywara@arm.com> wrote:
> >
> > If a board DT describes a cd-gpios property, but also marks the
> > storage as non-removable, we must ignore the GPIO (as Linux does).
> >
> > Teach the DM_MMC part of the Allwinner MMC driver about the
> > non-removable DT property, to fix DM_MMC access on the SoPine and
> > Pine64-LTS board.
> >
> > Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> > ---
> >  drivers/mmc/sunxi_mmc.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
> > index 87424c23dc..374775194d 100644
> > --- a/drivers/mmc/sunxi_mmc.c
> > +++ b/drivers/mmc/sunxi_mmc.c
> > @@ -658,7 +658,8 @@ static int sunxi_mmc_probe(struct udevice *dev)
> >                 return ret;
> >
> >         /* This GPIO is optional */
> > -       if (!gpio_request_by_name(dev, "cd-gpios", 0,
> > &priv->cd_gpio,
> > +       if (!dev_read_bool(dev, "non-removable") &&
> > +           !gpio_request_by_name(dev, "cd-gpios", 0,
> > &priv->cd_gpio,  
> 
> How about fixing this in dts?

Sure, eventually, once I confirmed that there is really no CD wire
connected. But since Linux can cope with that, U-Boot should do so as
well.

Cheers,
Andre.