On Sun, Feb 16, 2014 at 06:22:44PM +0400, Alexander Shiyan wrote:
> Воскресенье, 16 февраля 2014, 22:03 +08:00 от Shawn Guo <shawn.guo@xxxxxxxxxx>:
> > 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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