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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2022-12-31 12:07:27 +0100
committerWim Van Sebroeck <wim@linux-watchdog.org>2023-04-22 12:53:56 +0200
commit8fd15ace76a4aeb3648cf078541b5e6cfc91d5a2 (patch)
treef539c2745bcb84ac81436a31c9c75ec4312491d0 /drivers
parente0e0ee02e616269451dd00ff56be0328d5625a92 (diff)
watchdog: ixp4xx: Use devm_clk_get_enabled() helper
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/5d04e453a4da5cfafb56695a17157fa3ea296511.1672484831.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/watchdog/ixp4xx_wdt.c18
1 files changed, 3 insertions, 15 deletions
diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
index 281a48d9889f..607ce4b8df57 100644
--- a/drivers/watchdog/ixp4xx_wdt.c
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -112,12 +112,6 @@ static const struct watchdog_info ixp4xx_wdt_info = {
.identity = KBUILD_MODNAME,
};
-/* Devres-handled clock disablement */
-static void ixp4xx_clock_action(void *d)
-{
- clk_disable_unprepare(d);
-}
-
static int ixp4xx_wdt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -139,16 +133,10 @@ static int ixp4xx_wdt_probe(struct platform_device *pdev)
* Retrieve rate from a fixed clock from the device tree if
* the parent has that, else use the default clock rate.
*/
- clk = devm_clk_get(dev->parent, NULL);
- if (!IS_ERR(clk)) {
- ret = clk_prepare_enable(clk);
- if (ret)
- return ret;
- ret = devm_add_action_or_reset(dev, ixp4xx_clock_action, clk);
- if (ret)
- return ret;
+ clk = devm_clk_get_enabled(dev->parent, NULL);
+ if (!IS_ERR(clk))
iwdt->rate = clk_get_rate(clk);
- }
+
if (!iwdt->rate)
iwdt->rate = IXP4XX_TIMER_FREQ;