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. ---
