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

Dmitry Torokhov
2024-08-19T04:58:32Z

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;

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),
--
2.46.0.184.g6999bdac58-goog