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

Commit Message

Rob Herring Feb. 1, 2023, 9:58 p.m. UTC

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

Signed-off-by: Rob Herring <[e-mail]>
---
Compile tested only!
---
 drivers/bus/imx-weim.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

Comments

Shawn Guo March 6, 2023, 3:02 a.m. UTC | #1

On Wed, Feb 01, 2023 at 03:58:54PM -0600, Rob Herring wrote:
> "ranges" is a standard property and we have common helper functions for
> parsing it, so let's use them.
> 
> Signed-off-by: Rob Herring <[e-mail]>

Applied, thanks!

Patch

diff --git a/drivers/bus/imx-weim.c b/drivers/bus/imx-weim.c
index 828c66bbaa67..bb9d1f5ed73b 100644
--- 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++;
 	}