netdev - [PATCH 3/3] wilc1000: use devm_clk_get

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Date:   Fri, 6 Aug 2021 11:12:29 +0300
From:   Claudiu Beznea <claudiu.beznea@...rochip.com>
To:     <ajay.kathat@...rochip.com>, <kvalo@...eaurora.org>,
        <davem@...emloft.net>, <kuba@...nel.org>
CC:     <linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH 3/3] wilc1000: use devm_clk_get_optional()

Use devm_clk_get_optional() for rtc clock: it simplifies a bit
the code.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
 drivers/net/wireless/microchip/wilc1000/sdio.c | 14 ++++++--------
 drivers/net/wireless/microchip/wilc1000/spi.c  | 15 +++++++--------
 2 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/microchip/wilc1000/sdio.c b/drivers/net/wireless/microchip/wilc1000/sdio.c
index d1fd182bbbff..42e03a701ae1 100644
--- a/drivers/net/wireless/microchip/wilc1000/sdio.c
+++ b/drivers/net/wireless/microchip/wilc1000/sdio.c
@@ -146,12 +146,12 @@ static int wilc_sdio_probe(struct sdio_func *func,
 	wilc->bus_data = sdio_priv;
 	wilc->dev = &func->dev;
 
-	wilc->rtc_clk = devm_clk_get(&func->card->dev, "rtc");
-	if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER) {
-		ret = -EPROBE_DEFER;
+	wilc->rtc_clk = devm_clk_get_optional(&func->card->dev, "rtc");
+	if (IS_ERR(wilc->rtc_clk)) {
+		ret = PTR_ERR(wilc->rtc_clk);
 		goto dispose_irq;
-	} else if (!IS_ERR(wilc->rtc_clk))
-		clk_prepare_enable(wilc->rtc_clk);
+	}
+	clk_prepare_enable(wilc->rtc_clk);
 
 	dev_info(&func->dev, "Driver Initializing success\n");
 	return 0;
@@ -168,9 +168,7 @@ static void wilc_sdio_remove(struct sdio_func *func)
 {
 	struct wilc *wilc = sdio_get_drvdata(func);
 
-	if (!IS_ERR(wilc->rtc_clk))
-		clk_disable_unprepare(wilc->rtc_clk);
-
+	clk_disable_unprepare(wilc->rtc_clk);
 	wilc_netdev_cleanup(wilc);
 }
 
diff --git a/drivers/net/wireless/microchip/wilc1000/spi.c b/drivers/net/wireless/microchip/wilc1000/spi.c
index 23d811b2b925..8b180c29d682 100644
--- a/drivers/net/wireless/microchip/wilc1000/spi.c
+++ b/drivers/net/wireless/microchip/wilc1000/spi.c
@@ -162,12 +162,12 @@ static int wilc_bus_probe(struct spi_device *spi)
 	wilc->bus_data = spi_priv;
 	wilc->dev_irq_num = spi->irq;
 
-	wilc->rtc_clk = devm_clk_get(&spi->dev, "rtc");
-	if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER) {
-		ret = -EPROBE_DEFER;
+	wilc->rtc_clk = devm_clk_get_optional(&spi->dev, "rtc");
+	if (IS_ERR(wilc->rtc_clk)) {
+		ret = PTR_ERR(wilc->rtc_clk);
 		goto netdev_cleanup;
-	} else if (!IS_ERR(wilc->rtc_clk))
-		clk_prepare_enable(wilc->rtc_clk);
+	}
+	clk_prepare_enable(wilc->rtc_clk);
 
 	return 0;
 
@@ -182,10 +182,9 @@ static int wilc_bus_remove(struct spi_device *spi)
 {
 	struct wilc *wilc = spi_get_drvdata(spi);
 
-	if (!IS_ERR(wilc->rtc_clk))
-		clk_disable_unprepare(wilc->rtc_clk);
-
+	clk_disable_unprepare(wilc->rtc_clk);
 	wilc_netdev_cleanup(wilc);
+
 	return 0;
 }
 
-- 
2.25.1