netdev - [PATCH 1/2] net: phy: micrel: use devm_clk_get_optional

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Date: Fri,  1 Dec 2023 16:01:30 +0100
From: Heiko Stuebner <heiko@...ech.de>
To: andrew@...n.ch,
	hkallweit1@...il.com
Cc: linux@...linux.org.uk,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	quentin.schulz@...obroma-systems.com,
	heiko@...ech.de,
	Heiko Stuebner <heiko.stuebner@...rry.de>
Subject: [PATCH 1/2] net: phy: micrel: use devm_clk_get_optional_enabled for the rmii-ref clock

From: Heiko Stuebner <heiko.stuebner@...rry.de>

While the external clock input will most likely be enabled, it's not
guaranteed and clk_get_rate in some suppliers will even just return
valid results when the clock is running.

So use devm_clk_get_optional_enabled to retrieve and enable the clock
in one go.

Signed-off-by: Heiko Stuebner <heiko.stuebner@...rry.de>
---
 drivers/net/phy/micrel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 08e3915001c3..ec6a39dc9053 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -2001,7 +2001,7 @@ static int kszphy_probe(struct phy_device *phydev)
 
 	kszphy_parse_led_mode(phydev);
 
-	clk = devm_clk_get(&phydev->mdio.dev, "rmii-ref");
+	clk = devm_clk_get_optional_enabled(&phydev->mdio.dev, "rmii-ref");
 	/* NOTE: clk may be NULL if building without CONFIG_HAVE_CLK */
 	if (!IS_ERR_OR_NULL(clk)) {
 		unsigned long rate = clk_get_rate(clk);
-- 
2.39.2