clk: samsung: exynos-clkout: Use of_device_get_match_data()

Minghao Chi (CGEL ZTE) · krzk · commit 777aaf3d1daf · 2022-08-23T08:51:49.000+03:00
Use of_device_get_match_data() to simplify the code. Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220307033546.2075097-1-chi.minghao@zte.com.cn
diff --git a/drivers/clk/samsung/clk-exynos-clkout.c b/drivers/clk/samsung/clk-exynos-clkout.c
@@ -81,19 +81,17 @@ MODULE_DEVICE_TABLE(of, exynos_clkout_ids);
 static int exynos_clkout_match_parent_dev(struct device *dev, u32 *mux_mask)
 {
 	const struct exynos_clkout_variant *variant;
-	const struct of_device_id *match;
 
 	if (!dev->parent) {
 		dev_err(dev, "not instantiated from MFD\n");
 		return -EINVAL;
 	}
 
-	match = of_match_device(exynos_clkout_ids, dev->parent);
-	if (!match) {
+	variant = of_device_get_match_data(dev->parent);
+	if (!variant) {
 		dev_err(dev, "cannot match parent device\n");
 		return -EINVAL;
 	}
-	variant = match->data;
 
 	*mux_mask = variant->mux_mask;
 

Original file line number	Diff line number	Diff line change
`@@ -81,19 +81,17 @@ MODULE_DEVICE_TABLE(of, exynos_clkout_ids);`
`81`	`81`	`static int exynos_clkout_match_parent_dev(struct device dev, u32 mux_mask)`
`82`	`82`	`{`
`83`	`83`	`const struct exynos_clkout_variant *variant;`
`84`		`- const struct of_device_id *match;`
`85`	`84`
`86`	`85`	`if (!dev->parent) {`
`87`	`86`	`dev_err(dev, "not instantiated from MFD\n");`
`88`	`87`	`return -EINVAL;`
`89`	`88`	`}`
`90`	`89`
`91`		`- match = of_match_device(exynos_clkout_ids, dev->parent);`
`92`		`- if (!match) {`
	`90`	`+ variant = of_device_get_match_data(dev->parent);`
	`91`	`+ if (!variant) {`
`93`	`92`	`dev_err(dev, "cannot match parent device\n");`
`94`	`93`	`return -EINVAL;`
`95`	`94`	`}`
`96`		`- variant = match->data;`
`97`	`95`
`98`	`96`	`*mux_mask = variant->mux_mask;`
`99`	`97`