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[wireless-next,2/2] wifi: wilc1000: Convert using devm_clk_get_optional_enabled() in wilc_bus_probe()

Message ID 20240903110205.4127706-3-lizetao1@huawei.com
State Superseded
Headers show
Series wifi: Convert using devm_clk_get_optional_enabled() | expand

Commit Message

Li Zetao Sept. 3, 2024, 11:02 a.m. UTC 
Use devm_clk_get_optional_enabled() instead of devm_clk_get_optional() +
clk_prepare_enable(), which can make the clk consistent with the device
life cycle and reduce the risk of unreleased clk resources. Since the
device framework has automatically released the clk resource, there is
no need to execute clk_disable_unprepare(clk) on the error path.

Signed-off-by: Li Zetao <lizetao1@huawei.com>
---
 drivers/net/wireless/microchip/wilc1000/spi.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
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Patch

diff --git a/drivers/net/wireless/microchip/wilc1000/spi.c b/drivers/net/wireless/microchip/wilc1000/spi.c
index 5ff940c53ad9..05b577b1068e 100644
--- a/drivers/net/wireless/microchip/wilc1000/spi.c
+++ b/drivers/net/wireless/microchip/wilc1000/spi.c
@@ -228,12 +228,11 @@  static int wilc_bus_probe(struct spi_device *spi)
 	if (ret < 0)
 		goto netdev_cleanup;
 
-	wilc->rtc_clk = devm_clk_get_optional(&spi->dev, "rtc");
+	wilc->rtc_clk = devm_clk_get_optional_enabled(&spi->dev, "rtc");
 	if (IS_ERR(wilc->rtc_clk)) {
 		ret = PTR_ERR(wilc->rtc_clk);
 		goto netdev_cleanup;
 	}
-	clk_prepare_enable(wilc->rtc_clk);
 
 	dev_info(&spi->dev, "Selected CRC config: crc7=%s, crc16=%s\n",
 		 enable_crc7 ? "on" : "off", enable_crc16 ? "on" : "off");
@@ -266,7 +265,6 @@  static int wilc_bus_probe(struct spi_device *spi)
 	return 0;
 
 power_down:
-	clk_disable_unprepare(wilc->rtc_clk);
 	wilc_wlan_power(wilc, false);
 netdev_cleanup:
 	wilc_netdev_cleanup(wilc);
@@ -280,7 +278,6 @@  static void wilc_bus_remove(struct spi_device *spi)
 	struct wilc *wilc = spi_get_drvdata(spi);
 	struct wilc_spi *spi_priv = wilc->bus_data;
 
-	clk_disable_unprepare(wilc->rtc_clk);
 	wilc_netdev_cleanup(wilc);
 	kfree(spi_priv);
 }