From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: [PATCH v2 01/10] Input: pmic8xxx-pwrkey - switch to using managed resources Date: Thu, 2 Jan 2014 16:37:31 -0800 Message-ID: <1388709460-19222-2-git-send-email-sboyd@codeaurora.org> References: <1388709460-19222-1-git-send-email-sboyd@codeaurora.org> Return-path: Received: from smtp.codeaurora.org ([198.145.11.231]:47287 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751136AbaACAho (ORCPT ); Thu, 2 Jan 2014 19:37:44 -0500 In-Reply-To: <1388709460-19222-1-git-send-email-sboyd@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: Dmitry Torokhov Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org From: Dmitry Torokhov This simplifies error handling and device removal paths. Signed-off-by: Dmitry Torokhov Acked-by: Stephen Boyd Signed-off-by: Stephen Boyd --- drivers/input/misc/pmic8xxx-pwrkey.c | 74 ++++++++++++------------------------ 1 file changed, 25 insertions(+), 49 deletions(-) diff --git a/drivers/input/misc/pmic8xxx-pwrkey.c b/drivers/input/misc/pmic8xxx-pwrkey.c index ef938405a9c6..aaf332510623 100644 --- a/drivers/input/misc/pmic8xxx-pwrkey.c +++ b/drivers/input/misc/pmic8xxx-pwrkey.c @@ -32,7 +32,6 @@ * @key_press_irq: key press irq number */ struct pmic8xxx_pwrkey { - struct input_dev *pwr; int key_press_irq; }; @@ -110,22 +109,22 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev) return -ENODEV; } - pwrkey = kzalloc(sizeof(*pwrkey), GFP_KERNEL); + pwrkey = devm_kzalloc(&pdev->dev, sizeof(*pwrkey), GFP_KERNEL); if (!pwrkey) return -ENOMEM; - pwr = input_allocate_device(); + pwrkey->key_press_irq = key_press_irq; + + pwr = devm_input_allocate_device(&pdev->dev); if (!pwr) { dev_dbg(&pdev->dev, "Can't allocate power button\n"); - err = -ENOMEM; - goto free_pwrkey; + return -ENOMEM; } input_set_capability(pwr, EV_KEY, KEY_POWER); pwr->name = "pmic8xxx_pwrkey"; pwr->phys = "pmic8xxx_pwrkey/input0"; - pwr->dev.parent = &pdev->dev; delay = (pdata->kpd_trigger_delay_us << 10) / USEC_PER_SEC; delay = 1 + ilog2(delay); @@ -133,7 +132,7 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev) err = regmap_read(regmap, PON_CNTL_1, &pon_cntl); if (err < 0) { dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err); - goto free_input_dev; + return err; } pon_cntl &= ~PON_CNTL_TRIG_DELAY_MASK; @@ -146,66 +145,43 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev) err = regmap_write(regmap, PON_CNTL_1, pon_cntl); if (err < 0) { dev_err(&pdev->dev, "failed writing PON_CNTL_1 err=%d\n", err); - goto free_input_dev; + return err; } - err = input_register_device(pwr); + err = devm_request_irq(&pdev->dev, key_press_irq, pwrkey_press_irq, + IRQF_TRIGGER_RISING, + "pmic8xxx_pwrkey_press", pwr); if (err) { - dev_dbg(&pdev->dev, "Can't register power key: %d\n", err); - goto free_input_dev; + dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", + key_press_irq, err); + return err; } - pwrkey->key_press_irq = key_press_irq; - pwrkey->pwr = pwr; - - platform_set_drvdata(pdev, pwrkey); - - err = request_irq(key_press_irq, pwrkey_press_irq, - IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_press", pwr); - if (err < 0) { - dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", - key_press_irq, err); - goto unreg_input_dev; + err = devm_request_irq(&pdev->dev, key_release_irq, pwrkey_release_irq, + IRQF_TRIGGER_RISING, + "pmic8xxx_pwrkey_release", pwr); + if (err) { + dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", + key_release_irq, err); + return err; } - err = request_irq(key_release_irq, pwrkey_release_irq, - IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_release", pwr); - if (err < 0) { - dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", - key_release_irq, err); - - goto free_press_irq; + err = input_register_device(pwr); + if (err) { + dev_err(&pdev->dev, "Can't register power key: %d\n", err); + return err; } + platform_set_drvdata(pdev, pwrkey); device_init_wakeup(&pdev->dev, pdata->wakeup); return 0; - -free_press_irq: - free_irq(key_press_irq, pwrkey); -unreg_input_dev: - input_unregister_device(pwr); - pwr = NULL; -free_input_dev: - input_free_device(pwr); -free_pwrkey: - kfree(pwrkey); - return err; } static int pmic8xxx_pwrkey_remove(struct platform_device *pdev) { - struct pmic8xxx_pwrkey *pwrkey = platform_get_drvdata(pdev); - int key_release_irq = platform_get_irq(pdev, 0); - int key_press_irq = platform_get_irq(pdev, 1); - device_init_wakeup(&pdev->dev, 0); - free_irq(key_press_irq, pwrkey->pwr); - free_irq(key_release_irq, pwrkey->pwr); - input_unregister_device(pwrkey->pwr); - kfree(pwrkey); - return 0; } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation From mboxrd@z Thu Jan 1 00:00:00 1970 From: sboyd@codeaurora.org (Stephen Boyd) Date: Thu, 2 Jan 2014 16:37:31 -0800 Subject: [PATCH v2 01/10] Input: pmic8xxx-pwrkey - switch to using managed resources In-Reply-To: <1388709460-19222-1-git-send-email-sboyd@codeaurora.org> References: <1388709460-19222-1-git-send-email-sboyd@codeaurora.org> Message-ID: <1388709460-19222-2-git-send-email-sboyd@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Dmitry Torokhov This simplifies error handling and device removal paths. Signed-off-by: Dmitry Torokhov Acked-by: Stephen Boyd Signed-off-by: Stephen Boyd --- drivers/input/misc/pmic8xxx-pwrkey.c | 74 ++++++++++++------------------------ 1 file changed, 25 insertions(+), 49 deletions(-) diff --git a/drivers/input/misc/pmic8xxx-pwrkey.c b/drivers/input/misc/pmic8xxx-pwrkey.c index ef938405a9c6..aaf332510623 100644 --- a/drivers/input/misc/pmic8xxx-pwrkey.c +++ b/drivers/input/misc/pmic8xxx-pwrkey.c @@ -32,7 +32,6 @@ * @key_press_irq: key press irq number */ struct pmic8xxx_pwrkey { - struct input_dev *pwr; int key_press_irq; }; @@ -110,22 +109,22 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev) return -ENODEV; } - pwrkey = kzalloc(sizeof(*pwrkey), GFP_KERNEL); + pwrkey = devm_kzalloc(&pdev->dev, sizeof(*pwrkey), GFP_KERNEL); if (!pwrkey) return -ENOMEM; - pwr = input_allocate_device(); + pwrkey->key_press_irq = key_press_irq; + + pwr = devm_input_allocate_device(&pdev->dev); if (!pwr) { dev_dbg(&pdev->dev, "Can't allocate power button\n"); - err = -ENOMEM; - goto free_pwrkey; + return -ENOMEM; } input_set_capability(pwr, EV_KEY, KEY_POWER); pwr->name = "pmic8xxx_pwrkey"; pwr->phys = "pmic8xxx_pwrkey/input0"; - pwr->dev.parent = &pdev->dev; delay = (pdata->kpd_trigger_delay_us << 10) / USEC_PER_SEC; delay = 1 + ilog2(delay); @@ -133,7 +132,7 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev) err = regmap_read(regmap, PON_CNTL_1, &pon_cntl); if (err < 0) { dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err); - goto free_input_dev; + return err; } pon_cntl &= ~PON_CNTL_TRIG_DELAY_MASK; @@ -146,66 +145,43 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev) err = regmap_write(regmap, PON_CNTL_1, pon_cntl); if (err < 0) { dev_err(&pdev->dev, "failed writing PON_CNTL_1 err=%d\n", err); - goto free_input_dev; + return err; } - err = input_register_device(pwr); + err = devm_request_irq(&pdev->dev, key_press_irq, pwrkey_press_irq, + IRQF_TRIGGER_RISING, + "pmic8xxx_pwrkey_press", pwr); if (err) { - dev_dbg(&pdev->dev, "Can't register power key: %d\n", err); - goto free_input_dev; + dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", + key_press_irq, err); + return err; } - pwrkey->key_press_irq = key_press_irq; - pwrkey->pwr = pwr; - - platform_set_drvdata(pdev, pwrkey); - - err = request_irq(key_press_irq, pwrkey_press_irq, - IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_press", pwr); - if (err < 0) { - dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", - key_press_irq, err); - goto unreg_input_dev; + err = devm_request_irq(&pdev->dev, key_release_irq, pwrkey_release_irq, + IRQF_TRIGGER_RISING, + "pmic8xxx_pwrkey_release", pwr); + if (err) { + dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", + key_release_irq, err); + return err; } - err = request_irq(key_release_irq, pwrkey_release_irq, - IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_release", pwr); - if (err < 0) { - dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", - key_release_irq, err); - - goto free_press_irq; + err = input_register_device(pwr); + if (err) { + dev_err(&pdev->dev, "Can't register power key: %d\n", err); + return err; } + platform_set_drvdata(pdev, pwrkey); device_init_wakeup(&pdev->dev, pdata->wakeup); return 0; - -free_press_irq: - free_irq(key_press_irq, pwrkey); -unreg_input_dev: - input_unregister_device(pwr); - pwr = NULL; -free_input_dev: - input_free_device(pwr); -free_pwrkey: - kfree(pwrkey); - return err; } static int pmic8xxx_pwrkey_remove(struct platform_device *pdev) { - struct pmic8xxx_pwrkey *pwrkey = platform_get_drvdata(pdev); - int key_release_irq = platform_get_irq(pdev, 0); - int key_press_irq = platform_get_irq(pdev, 1); - device_init_wakeup(&pdev->dev, 0); - free_irq(key_press_irq, pwrkey->pwr); - free_irq(key_release_irq, pwrkey->pwr); - input_unregister_device(pwrkey->pwr); - kfree(pwrkey); - return 0; } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation