From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Reichel Subject: [PATCHv4 3/3] Input: twl4030-pwrbutton: simplify driver using devm_* Date: Wed, 23 Oct 2013 19:54:12 +0200 Message-ID: <1382550852-11508-4-git-send-email-sre@debian.org> References: <1382550852-11508-1-git-send-email-sre@debian.org> Return-path: In-Reply-To: <1382550852-11508-1-git-send-email-sre@debian.org> Sender: linux-kernel-owner@vger.kernel.org To: Sebastian Reichel , Dmitry Torokhov Cc: Grant Likely , Rob Herring , Sebastian Reichel , Peter Ujfalusi , Sachin Kamat , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org Use managed irq resource to simplify the driver. Signed-off-by: Sebastian Reichel --- drivers/input/misc/twl4030-pwrbutton.c | 26 ++++---------------------- 1 file changed, 4 insertions(+), 22 deletions(-) diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c index 3efbb13..da30af0 100644 --- a/drivers/input/misc/twl4030-pwrbutton.c +++ b/drivers/input/misc/twl4030-pwrbutton.c @@ -58,7 +58,7 @@ static int twl4030_pwrbutton_probe(struct platform_device *pdev) int irq = platform_get_irq(pdev, 0); int err; - pwr = input_allocate_device(); + pwr = devm_input_allocate_device(&pdev->dev); if (!pwr) { dev_err(&pdev->dev, "Can't allocate power button\n"); return -ENOMEM; @@ -70,40 +70,23 @@ static int twl4030_pwrbutton_probe(struct platform_device *pdev) pwr->phys = "twl4030_pwrbutton/input0"; pwr->dev.parent = &pdev->dev; - err = request_threaded_irq(irq, NULL, powerbutton_irq, + err = devm_request_threaded_irq(&pwr->dev, irq, NULL, powerbutton_irq, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "twl4030_pwrbutton", pwr); if (err < 0) { dev_err(&pdev->dev, "Can't get IRQ for pwrbutton: %d\n", err); - goto free_input_dev; + return err; } err = input_register_device(pwr); if (err) { dev_err(&pdev->dev, "Can't register power button: %d\n", err); - goto free_irq; + return err; } platform_set_drvdata(pdev, pwr); return 0; - -free_irq: - free_irq(irq, pwr); -free_input_dev: - input_free_device(pwr); - return err; -} - -static int __exit twl4030_pwrbutton_remove(struct platform_device *pdev) -{ - struct input_dev *pwr = platform_get_drvdata(pdev); - int irq = platform_get_irq(pdev, 0); - - free_irq(irq, pwr); - input_unregister_device(pwr); - - return 0; } #if IS_ENABLED(CONFIG_OF) @@ -116,7 +99,6 @@ MODULE_DEVICE_TABLE(of, twl4030_pwrbutton_dt_match_table); static struct platform_driver twl4030_pwrbutton_driver = { .probe = twl4030_pwrbutton_probe, - .remove = __exit_p(twl4030_pwrbutton_remove), .driver = { .name = "twl4030_pwrbutton", .owner = THIS_MODULE, -- 1.8.4.rc3