On Sun, Feb 16, 2014 at 06:22:44PM +0400, Alexander Shiyan wrote:
> Воскресенье, 16 февраля 2014, 22:03 +08:00 от Shawn Guo 
> <[email protected]>:
> > For imx50-weim and imx6q-weim type of devices, there might a WEIM CS
> > space configuration register in General Purpose Register controller,
> > e.g. IOMUXC_GPR1 on i.MX6Q.
> ...
> > +static int __init imx_weim_gpr_setup(struct platform_device *pdev)
> > +{
> > +   struct device_node *np = pdev->dev.of_node;
> > +   struct property *prop;
> > +   const __be32 *p;
> > +   struct regmap *gpr;
> > +   u32 gprvals[4] = {
> > +           05,     /* CS0(128M) CS1(0M)  CS2(0M)  CS3(0M) */
> > +           033,    /* CS0(64M)  CS1(64M) CS2(0M)  CS3(0M) */
> > +           0113,   /* CS0(64M)  CS1(32M) CS2(32M) CS3(0M) */
> > +           01111,  /* CS0(64M)  CS1(32M) CS2(32M) CS3(0M) */
> > +   };
> > +   u32 gprval = 0;
> > +   u32 val;
> > +   int cs = 0;
> > +   int i = 0;
> > +
> > +   gpr = syscon_regmap_lookup_by_phandle(np, "fsl,weim-cs-gpr");
> > +   if (IS_ERR(gpr)) {
> > +           dev_dbg(&pdev->dev, "failed to find weim-cs-gpr\n");
> > +           return 0;
> 
> Only one comment:
> You do not use these error codes in the probe(),
> so let's declare this function as void.

Oh, yes.  I should check return of imx_weim_gpr_setup() in probe().
Will add in the next version.

Shawn

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