diff mbox series

[05/14] Input: samsung-keypad - use devm to disable runtime PM

Message ID 20240819045813.2154642-6-dmitry.torokhov@gmail.com
State New
Headers show
Series Remove support for platform data from samsung keypad | expand

Commit Message

Dmitry Torokhov Aug. 19, 2024, 4:58 a.m. UTC
To make sure that runtime PM is disabled at the right time relative
to all other devm-managed resources use devm_add_action_or_reset()
to register a handler that will disable it.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/samsung-keypad.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

Comments

Krzysztof Kozlowski Aug. 19, 2024, 12:54 p.m. UTC | #1
On Sun, Aug 18, 2024 at 09:58:02PM -0700, Dmitry Torokhov wrote:
> To make sure that runtime PM is disabled at the right time relative
> to all other devm-managed resources use devm_add_action_or_reset()
> to register a handler that will disable it.
> 
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> ---
>  drivers/input/keyboard/samsung-keypad.c | 24 +++++++++++++-----------
>  1 file changed, 13 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
> index 7adcd2657bca..924327de4d8f 100644
> --- a/drivers/input/keyboard/samsung-keypad.c
> +++ b/drivers/input/keyboard/samsung-keypad.c
> @@ -310,6 +310,13 @@ samsung_keypad_parse_dt(struct device *dev)
>  }
>  #endif
>  
> +static void samsung_disable_runtime_pm(void *data)
> +{
> +	struct samsung_keypad *keypad = data;
> +
> +	pm_runtime_disable(&keypad->pdev->dev);
> +}
> +
>  static int samsung_keypad_probe(struct platform_device *pdev)
>  {
>  	const struct samsung_keypad_platdata *pdata;
> @@ -420,11 +427,16 @@ static int samsung_keypad_probe(struct platform_device *pdev)
>  
>  	device_init_wakeup(&pdev->dev, pdata->wakeup);
>  	platform_set_drvdata(pdev, keypad);
> +
>  	pm_runtime_enable(&pdev->dev);
> +	error = devm_add_action_or_reset(&pdev->dev, samsung_disable_runtime_pm,
> +					 keypad);
> +	if (error)
> +		return error;

I think you are open-coding devm_pm_runtime_enable().
diff mbox series

Patch

diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
index 7adcd2657bca..924327de4d8f 100644
--- a/drivers/input/keyboard/samsung-keypad.c
+++ b/drivers/input/keyboard/samsung-keypad.c
@@ -310,6 +310,13 @@  samsung_keypad_parse_dt(struct device *dev)
 }
 #endif
 
+static void samsung_disable_runtime_pm(void *data)
+{
+	struct samsung_keypad *keypad = data;
+
+	pm_runtime_disable(&keypad->pdev->dev);
+}
+
 static int samsung_keypad_probe(struct platform_device *pdev)
 {
 	const struct samsung_keypad_platdata *pdata;
@@ -420,11 +427,16 @@  static int samsung_keypad_probe(struct platform_device *pdev)
 
 	device_init_wakeup(&pdev->dev, pdata->wakeup);
 	platform_set_drvdata(pdev, keypad);
+
 	pm_runtime_enable(&pdev->dev);
+	error = devm_add_action_or_reset(&pdev->dev, samsung_disable_runtime_pm,
+					 keypad);
+	if (error)
+		return error;
 
 	error = input_register_device(keypad->input_dev);
 	if (error)
-		goto err_disable_runtime_pm;
+		return error;
 
 	if (pdev->dev.of_node) {
 		devm_kfree(&pdev->dev, (void *)pdata->keymap_data->keymap);
@@ -432,15 +444,6 @@  static int samsung_keypad_probe(struct platform_device *pdev)
 		devm_kfree(&pdev->dev, (void *)pdata);
 	}
 	return 0;
-
-err_disable_runtime_pm:
-	pm_runtime_disable(&pdev->dev);
-	return error;
-}
-
-static void samsung_keypad_remove(struct platform_device *pdev)
-{
-	pm_runtime_disable(&pdev->dev);
 }
 
 static int samsung_keypad_runtime_suspend(struct device *dev)
@@ -575,7 +578,6 @@  MODULE_DEVICE_TABLE(platform, samsung_keypad_driver_ids);
 
 static struct platform_driver samsung_keypad_driver = {
 	.probe		= samsung_keypad_probe,
-	.remove_new	= samsung_keypad_remove,
 	.driver		= {
 		.name	= "samsung-keypad",
 		.of_match_table = of_match_ptr(samsung_keypad_dt_match),