diff mbox series

[1/2] net: phy: micrel: use devm_clk_get_optional_enabled for the rmii-ref clock

Message ID 20231201150131.326766-2-heiko@sntech.de (mailing list archive)
State Accepted
Commit 9853294627237b73a6b765162d9c0485b0697db5
Delegated to: Netdev Maintainers
Headers show
Series net: phy: micrel: additional clock handling | expand

Checks

Context Check Description
netdev/series_format warning Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1115 this patch: 1115
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 1142 this patch: 1142
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1142 this patch: 1142
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Heiko Stübner Dec. 1, 2023, 3:01 p.m. UTC 
From: Heiko Stuebner <heiko.stuebner@cherry.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@cherry.de>
---
 drivers/net/phy/micrel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Florian Fainelli Dec. 1, 2023, 5:03 p.m. UTC | #1 
On 12/1/23 07:01, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner@cherry.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@cherry.de>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Andrew Lunn Dec. 1, 2023, 10:19 p.m. UTC | #2 
On Fri, Dec 01, 2023 at 04:01:30PM +0100, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner@cherry.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@cherry.de>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
diff mbox series

Patch

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);