From: Stephen Boyd <sboyd@codeaurora.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-input@vger.kernel.org
Subject: [PATCH v2 01/10] Input: pmic8xxx-pwrkey - switch to using managed resources
Date: Thu, 2 Jan 2014 16:37:31 -0800 [thread overview]
Message-ID: <1388709460-19222-2-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1388709460-19222-1-git-send-email-sboyd@codeaurora.org>
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This simplifies error handling and device removal paths.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
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
next prev parent reply other threads:[~2014-01-03 0:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-03 0:37 [PATCH v2 00/10] Use regmap+devm+DT in pm8xxx input drivers Stephen Boyd
2014-01-03 0:37 ` Stephen Boyd [this message]
2014-01-03 0:37 ` [PATCH v2 02/10] genirq: Add devm_request_any_context_irq() Stephen Boyd
2014-01-06 22:24 ` Stephen Boyd
2014-01-14 20:47 ` Stephen Boyd
2014-02-07 21:08 ` Stephen Boyd
2014-01-03 0:37 ` [PATCH v2 03/10] Input: pmic8xxx-keypad - Switch to using managed resources Stephen Boyd
2014-01-03 0:37 ` [PATCH v2 04/10] Input: pmic8xxx-keypad - Migrate to regmap APIs Stephen Boyd
2014-01-03 0:37 ` [PATCH v2 05/10] Input: pmic8xxx-pwrkey - Migrate to DT Stephen Boyd
2014-01-03 0:37 ` [PATCH v2 06/10] Input: pm8xxx-vibrator - Add DT match table Stephen Boyd
2014-01-03 1:17 ` Dmitry Torokhov
2014-01-03 1:27 ` Stephen Boyd
2014-01-03 0:37 ` [PATCH v2 07/10] Input: pmic8xxx-keypad - Migrate to DT Stephen Boyd
2014-01-03 0:37 ` [PATCH v2 08/10] devicetree: bindings: Document PM8921/8058 keypads Stephen Boyd
2014-01-03 0:37 ` [PATCH v2 09/10] devicetree: bindings: Document PM8921/8058 power keys Stephen Boyd
2014-01-03 0:37 ` [PATCH v2 10/10] devicetree: bindings: Document PM8921/8058 vibrators Stephen Boyd
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