staging: hi6421-spmi-pmic: use devm_request_threaded_irq()

Use devm_request_threaded_irq() in order to simplify the
driver.

Suggested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/b47827c3466eeef3a7de6ac56b1fe93b5ff84e30.1624606660.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/hikey9xx/hi6421-spmi-pmic.c b/drivers/staging/hikey9xx/hi6421-spmi-pmic.c
index 626140c..a094b81 100644 (file)
--- a/drivers/staging/hikey9xx/hi6421-spmi-pmic.c
+++ b/drivers/staging/hikey9xx/hi6421-spmi-pmic.c
@@ -250,9 +250,11 @@ static int hi6421_spmi_pmic_probe(struct spmi_device *pdev)
                ddata->irqs[i] = virq;
        }
 
-       ret = request_threaded_irq(ddata->irq, hi6421_spmi_irq_handler, NULL,
-                                  IRQF_TRIGGER_LOW | IRQF_SHARED | IRQF_NO_SUSPEND,
-                                  "pmic", ddata);
+       ret = devm_request_threaded_irq(dev,
+                                       ddata->irq, hi6421_spmi_irq_handler,
+                                       NULL,
+                                       IRQF_TRIGGER_LOW | IRQF_SHARED | IRQF_NO_SUSPEND,
+                                       "pmic", ddata);
        if (ret < 0) {
                dev_err(dev, "Failed to start IRQ handling thread: error %d\n",
                        ret);
@@ -270,13 +272,6 @@ static int hi6421_spmi_pmic_probe(struct spmi_device *pdev)
        return ret;
 }
 
-static void hi6421_spmi_pmic_remove(struct spmi_device *pdev)
-{
-       struct hi6421_spmi_pmic *ddata = dev_get_drvdata(&pdev->dev);
-
-       free_irq(ddata->irq, ddata);
-}
-
 static const struct of_device_id pmic_spmi_id_table[] = {
        { .compatible = "hisilicon,hi6421-spmi" },
        { }
@@ -289,7 +284,6 @@ static struct spmi_driver hi6421_spmi_pmic_driver = {
                .of_match_table = pmic_spmi_id_table,
        },
        .probe  = hi6421_spmi_pmic_probe,
-       .remove = hi6421_spmi_pmic_remove,
 };
 module_spmi_driver(hi6421_spmi_pmic_driver);