[PATCH V2] clk/samsung: Use of_device_get_match_data()

From: cgel . zte
Date: Sun Mar 06 2022 - 22:35:58 EST


From: Minghao Chi (CGEL ZTE) <chi.minghao@xxxxxxxxxx>

Use of_device_get_match_data() to simplify the code.

v1->v2:
Add a judgment for returning variant to NULL

Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@xxxxxxxxxx>
---
drivers/clk/samsung/clk-exynos-clkout.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/samsung/clk-exynos-clkout.c b/drivers/clk/samsung/clk-exynos-clkout.c
index e6d6cbf8c4e6..273f77d54dab 100644
--- 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;

--
2.25.1