On Wed, Aug 15, 2012 at 06:30:55AM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 22:21 Tue 14 Aug , Sascha Hauer wrote:
> > On Tue, Aug 14, 2012 at 07:32:16PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
> > > ---
> > > drivers/net/smc911x.c | 20 ++++++++++++++++++--
> > > 1 file changed, 18 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c
> > > index 2583235..c74ed52 100644
> > > --- a/drivers/net/smc911x.c
> > > +++ b/drivers/net/smc911x.c
> > > @@ -47,6 +47,8 @@ struct smc911x_priv {
> > > struct mii_device miidev;
> > > void __iomem *base;
> > >
> > > + u32 width;
> > > +
> > > u32 (*reg_read)(struct smc911x_priv *priv, u32 reg);
> > > void (*reg_write)(struct smc911x_priv *priv, u32 reg, u32 val);
> > > };
> > > @@ -78,7 +80,11 @@ static inline u32 smc911x_reg_read(struct smc911x_priv *priv, u32 reg)
> > >
> > > static inline u32 __smc911x_reg_read(struct smc911x_priv *priv, u32 reg)
> > > {
> > > - return readl(priv->base + reg);
> > > + if (priv->width)
> > > + return readl(priv->base + reg);
> > > + else
> > > + return ((readw(priv->base + reg) & 0xFFFF) |
> > > + ((readw(priv->base + reg + 2) & 0xFFFF) << 16));
> > > }
> >
> > If you introduce function pointers for the read/write functions, then
> > please use them to implement 16bit support.
> this what this patch do
No, it doesn't. If it would, there would be a function for 16bit access
and another one for 32bit access.
Sascha
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