bus: imx-weim: Remove open coded "ranges" parsing

"ranges" is a standard property and we have common helper functions for
parsing it, so let's use them.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/drivers/bus/imx-weim.c b/drivers/bus/imx-weim.c
index 2a6b4f6..a8fd41e 100644 (file)
--- a/drivers/bus/imx-weim.c
+++ b/drivers/bus/imx-weim.c
@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
@@ -86,8 +87,8 @@ MODULE_DEVICE_TABLE(of, weim_id_table);
 static int imx_weim_gpr_setup(struct platform_device *pdev)
 {
        struct device_node *np = pdev->dev.of_node;
-       struct property *prop;
-       const __be32 *p;
+       struct of_range_parser parser;
+       struct of_range range;
        struct regmap *gpr;
        u32 gprvals[4] = {
                05,     /* CS0(128M) CS1(0M)  CS2(0M)  CS3(0M)  */
@@ -106,13 +107,13 @@ static int imx_weim_gpr_setup(struct platform_device *pdev)
                return 0;
        }
 
-       of_property_for_each_u32(np, "ranges", prop, p, val) {
-               if (i % 4 == 0) {
-                       cs = val;
-               } else if (i % 4 == 3 && val) {
-                       val = (val / SZ_32M) | 1;
-                       gprval |= val << cs * 3;
-               }
+       if (of_range_parser_init(&parser, np))
+               goto err;
+
+       for_each_of_range(&parser, &range) {
+               cs = range.bus_addr >> 32;
+               val = (range.size / SZ_32M) | 1;
+               gprval |= val << cs * 3;
                i++;
        }