Input: snvs_pwrkey - use devm_clk_get_optional_enabled()

Switch to using devm_clk_get_optional_enabled() helper instead of
acquiring the clock with devm_clk_get_optional(), enabling it, and
defining and installing a custom devm action to call clk_disable().

Reviewed-by: Frank Li <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/keyboard/snvs_pwrkey.c

···
 	return IRQ_HANDLED;
 }
 
-static void imx_snvs_pwrkey_disable_clk(void *data)
-{
-	clk_disable_unprepare(data);
-}
-
 static void imx_snvs_pwrkey_act(void *pdata)
 {
 	struct pwrkey_drv_data *pd = pdata;
···
 		dev_warn(&pdev->dev, "KEY_POWER without setting in dts\n");
 	}
 
-	clk = devm_clk_get_optional(&pdev->dev, NULL);
+	clk = devm_clk_get_optional_enabled(&pdev->dev, NULL);
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "Failed to get snvs clock (%pe)\n", clk);
 		return PTR_ERR(clk);
-	}
-
-	error = clk_prepare_enable(clk);
-	if (error) {
-		dev_err(&pdev->dev, "Failed to enable snvs clock (%pe)\n",
-			ERR_PTR(error));
-		return error;
-	}
-
-	error = devm_add_action_or_reset(&pdev->dev,
-					 imx_snvs_pwrkey_disable_clk, clk);
-	if (error) {
-		dev_err(&pdev->dev,
-			"Failed to register clock cleanup handler (%pe)\n",
-			ERR_PTR(error));
-		return error;
 	}
 
 	pdata->wakeup = of_property_read_bool(np, "wakeup-source");
···
 	error = devm_request_irq(&pdev->dev, pdata->irq,
 			       imx_snvs_pwrkey_interrupt,
 			       0, pdev->name, pdev);
-
 	if (error) {
 		dev_err(&pdev->dev, "interrupt not available.\n");
 		return error;