Hello Steffen,
On Wed, Oct 29, 2014 at 09:51:03PM +0100, Steffen Trumtrar wrote:
> > > +
> > > +int socfpga_l3nic_regmap_by_phandle(struct device_node *np,
> > > + struct regmap **regmap,
> > > + const char *name)
> > > +{
> >
> > This could return the regmap or ERR_PTR(-ENODEV) and just
> > have the np and name parameter, similar to
> > syscon_regmap_lookup_by_phandle.
> >
>
> I wanted to do that, but I also want to propagate the return
> value of socfpga_gpv_device_by_phandle and this doesn't
> seem to work than. Open for suggestions, though.
Doesn't the following work:
struct regmap *socfpga_l3nic_regmap_by_phandle(struct device_node *np,
const char *name)
{
struct socfpga_l3nic *l3nic;
struct platform_device *pdev;
pdev = socfpga_gpv_device_by_phandle(np, name);
if (!pdev)
/* it's wrong to apply ERR_PTR to NULL */
return ERR_PTR(-ENODEV);
l3nic = dev_get_drvdata(&pdev->dev);
if (!l3nic)
return ERR_PTR(-EINVAL);
/* do you need to check l3nic->regmap for being != NULL? */
return l3nic->regmap;
}
?
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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