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* [PATCH 1/3] input: gpio_keys_polled: Convert to devm-* API
@ 2013-08-07  8:25 Alexander Shiyan
  2013-08-07  8:25 ` [PATCH 2/3] input: gpio_keys: " Alexander Shiyan
  2013-08-07  8:25 ` [PATCH 3/3] input: gpio_keys{_polled}: Replace enable/disable callbacks with regulator API Alexander Shiyan
  0 siblings, 2 replies; 3+ messages in thread
From: Alexander Shiyan @ 2013-08-07  8:25 UTC (permalink / raw)
  To: linux-input; +Cc: Linus Walleij, Dmitry Torokhov, Alexander Shiyan


Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
 drivers/input/keyboard/gpio_keys_polled.c | 87 ++++++++-----------------------
 1 file changed, 23 insertions(+), 64 deletions(-)

diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index cd5ed9e..b589d12 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -108,9 +108,7 @@ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct
 	struct device_node *node, *pp;
 	struct gpio_keys_platform_data *pdata;
 	struct gpio_keys_button *button;
-	int error;
-	int nbuttons;
-	int i;
+	int i, nbuttons;
 
 	node = dev->of_node;
 	if (!node)
@@ -120,12 +118,10 @@ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct
 	if (nbuttons == 0)
 		return NULL;
 
-	pdata = kzalloc(sizeof(*pdata) + nbuttons * (sizeof *button),
-			GFP_KERNEL);
-	if (!pdata) {
-		error = -ENOMEM;
-		goto err_out;
-	}
+	pdata = devm_kzalloc(dev, sizeof(*pdata) + nbuttons * sizeof(*button),
+			     GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
 
 	pdata->buttons = (struct gpio_keys_button *)(pdata + 1);
 	pdata->nbuttons = nbuttons;
@@ -146,12 +142,11 @@ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct
 
 		gpio = of_get_gpio_flags(pp, 0, &flags);
 		if (gpio < 0) {
-			error = gpio;
-			if (error != -EPROBE_DEFER)
+			if (gpio != -EPROBE_DEFER)
 				dev_err(dev,
 					"Failed to get gpio flags, error: %d\n",
-					error);
-			goto err_free_pdata;
+					gpio);
+			return ERR_PTR(gpio);
 		}
 
 		button = &pdata->buttons[i++];
@@ -162,8 +157,7 @@ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct
 		if (of_property_read_u32(pp, "linux,code", &button->code)) {
 			dev_err(dev, "Button without keycode: 0x%x\n",
 				button->gpio);
-			error = -EINVAL;
-			goto err_free_pdata;
+			return ERR_PTR(-EINVAL);
 		}
 
 		button->desc = of_get_property(pp, "label", NULL);
@@ -178,17 +172,10 @@ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct
 			button->debounce_interval = 5;
 	}
 
-	if (pdata->nbuttons == 0) {
-		error = -EINVAL;
-		goto err_free_pdata;
-	}
+	if (!pdata->nbuttons)
+		return ERR_PTR(-EINVAL);
 
 	return pdata;
-
-err_free_pdata:
-	kfree(pdata);
-err_out:
-	return ERR_PTR(error);
 }
 
 static struct of_device_id gpio_keys_polled_of_match[] = {
@@ -228,24 +215,21 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 
 	if (!pdata->poll_interval) {
 		dev_err(dev, "missing poll_interval value\n");
-		error = -EINVAL;
-		goto err_free_pdata;
+		return -EINVAL;
 	}
 
-	bdev = kzalloc(sizeof(struct gpio_keys_polled_dev) +
-		       pdata->nbuttons * sizeof(struct gpio_keys_button_data),
-		       GFP_KERNEL);
+	bdev = devm_kzalloc(&pdev->dev, sizeof(struct gpio_keys_polled_dev) +
+		pdata->nbuttons * sizeof(struct gpio_keys_button_data),
+		GFP_KERNEL);
 	if (!bdev) {
 		dev_err(dev, "no memory for private data\n");
-		error = -ENOMEM;
-		goto err_free_pdata;
+		return -ENOMEM;
 	}
 
 	poll_dev = input_allocate_polled_device();
 	if (!poll_dev) {
 		dev_err(dev, "no memory for polled device\n");
-		error = -ENOMEM;
-		goto err_free_bdev;
+		return -ENOMEM;
 	}
 
 	poll_dev->private = bdev;
@@ -278,15 +262,15 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 		if (button->wakeup) {
 			dev_err(dev, DRV_NAME " does not support wakeup\n");
 			error = -EINVAL;
-			goto err_free_gpio;
+			goto err_out;
 		}
 
-		error = gpio_request_one(gpio, GPIOF_IN,
-					 button->desc ?: DRV_NAME);
+		error = devm_gpio_request_one(&pdev->dev, gpio, GPIOF_IN,
+					      button->desc ? : DRV_NAME);
 		if (error) {
 			dev_err(dev, "unable to claim gpio %u, err=%d\n",
 				gpio, error);
-			goto err_free_gpio;
+			goto err_out;
 		}
 
 		bdata->can_sleep = gpio_cansleep(gpio);
@@ -306,7 +290,7 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 	if (error) {
 		dev_err(dev, "unable to register polled device, err=%d\n",
 			error);
-		goto err_free_gpio;
+		goto err_out;
 	}
 
 	/* report initial state of the buttons */
@@ -316,45 +300,20 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_free_gpio:
-	while (--i >= 0)
-		gpio_free(pdata->buttons[i].gpio);
-
+err_out:
 	input_free_polled_device(poll_dev);
 
-err_free_bdev:
-	kfree(bdev);
-
-err_free_pdata:
-	/* If we have no platform_data, we allocated pdata dynamically.  */
-	if (!dev_get_platdata(&pdev->dev))
-		kfree(pdata);
-
 	return error;
 }
 
 static int gpio_keys_polled_remove(struct platform_device *pdev)
 {
 	struct gpio_keys_polled_dev *bdev = platform_get_drvdata(pdev);
-	const struct gpio_keys_platform_data *pdata = bdev->pdata;
-	int i;
 
 	input_unregister_polled_device(bdev->poll_dev);
 
-	for (i = 0; i < pdata->nbuttons; i++)
-		gpio_free(pdata->buttons[i].gpio);
-
 	input_free_polled_device(bdev->poll_dev);
 
-	/*
-	 * If we had no platform_data, we allocated pdata dynamically and
-	 * must free it here.
-	 */
-	if (!dev_get_platdata(&pdev->dev))
-		kfree(pdata);
-
-	kfree(bdev);
-
 	return 0;
 }
 
-- 
1.8.1.5


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* [PATCH 2/3] input: gpio_keys: Convert to devm-* API
  2013-08-07  8:25 [PATCH 1/3] input: gpio_keys_polled: Convert to devm-* API Alexander Shiyan
@ 2013-08-07  8:25 ` Alexander Shiyan
  2013-08-07  8:25 ` [PATCH 3/3] input: gpio_keys{_polled}: Replace enable/disable callbacks with regulator API Alexander Shiyan
  1 sibling, 0 replies; 3+ messages in thread
From: Alexander Shiyan @ 2013-08-07  8:25 UTC (permalink / raw)
  To: linux-input; +Cc: Linus Walleij, Dmitry Torokhov, Alexander Shiyan


Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
 drivers/input/keyboard/gpio_keys.c | 96 +++++++++++---------------------------
 1 file changed, 28 insertions(+), 68 deletions(-)

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 440ce32..8fe28d7 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -432,7 +432,7 @@ static int gpio_keys_setup_key(struct platform_device *pdev,
 	struct device *dev = &pdev->dev;
 	irq_handler_t isr;
 	unsigned long irqflags;
-	int irq, error;
+	int error;
 
 	bdata->input = input;
 	bdata->button = button;
@@ -440,7 +440,8 @@ static int gpio_keys_setup_key(struct platform_device *pdev,
 
 	if (gpio_is_valid(button->gpio)) {
 
-		error = gpio_request_one(button->gpio, GPIOF_IN, desc);
+		error = devm_gpio_request_one(&pdev->dev, button->gpio,
+					      GPIOF_IN, desc);
 		if (error < 0) {
 			dev_err(dev, "Failed to request GPIO %d, error %d\n",
 				button->gpio, error);
@@ -456,15 +457,13 @@ static int gpio_keys_setup_key(struct platform_device *pdev,
 						button->debounce_interval;
 		}
 
-		irq = gpio_to_irq(button->gpio);
-		if (irq < 0) {
-			error = irq;
+		bdata->irq = gpio_to_irq(button->gpio);
+		if (bdata->irq < 0) {
 			dev_err(dev,
 				"Unable to get irq number for GPIO %d, error %d\n",
-				button->gpio, error);
-			goto fail;
+				button->gpio, bdata->irq);
+			return bdata->irq;
 		}
-		bdata->irq = irq;
 
 		INIT_WORK(&bdata->work, gpio_keys_gpio_work_func);
 		setup_timer(&bdata->timer,
@@ -506,16 +505,10 @@ static int gpio_keys_setup_key(struct platform_device *pdev,
 	if (error < 0) {
 		dev_err(dev, "Unable to claim irq %d; error %d\n",
 			bdata->irq, error);
-		goto fail;
+		return error;
 	}
 
 	return 0;
-
-fail:
-	if (gpio_is_valid(button->gpio))
-		gpio_free(button->gpio);
-
-	return error;
 }
 
 static void gpio_keys_report_state(struct gpio_keys_drvdata *ddata)
@@ -572,28 +565,20 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 	struct device_node *node, *pp;
 	struct gpio_keys_platform_data *pdata;
 	struct gpio_keys_button *button;
-	int error;
-	int nbuttons;
-	int i;
+	int i, nbuttons;
 
 	node = dev->of_node;
-	if (!node) {
-		error = -ENODEV;
-		goto err_out;
-	}
+	if (!node)
+		return ERR_PTR(-ENODEV);
 
 	nbuttons = of_get_child_count(node);
-	if (nbuttons == 0) {
-		error = -ENODEV;
-		goto err_out;
-	}
+	if (nbuttons == 0)
+		return ERR_PTR(-ENODEV);
 
-	pdata = kzalloc(sizeof(*pdata) + nbuttons * (sizeof *button),
-			GFP_KERNEL);
-	if (!pdata) {
-		error = -ENOMEM;
-		goto err_out;
-	}
+	pdata = devm_kzalloc(dev, sizeof(*pdata) + nbuttons * sizeof(*button),
+			     GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
 
 	pdata->buttons = (struct gpio_keys_button *)(pdata + 1);
 	pdata->nbuttons = nbuttons;
@@ -613,12 +598,11 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 
 		gpio = of_get_gpio_flags(pp, 0, &flags);
 		if (gpio < 0) {
-			error = gpio;
-			if (error != -EPROBE_DEFER)
+			if (gpio != -EPROBE_DEFER)
 				dev_err(dev,
 					"Failed to get gpio flags, error: %d\n",
-					error);
-			goto err_free_pdata;
+					gpio);
+			return ERR_PTR(gpio);
 		}
 
 		button = &pdata->buttons[i++];
@@ -629,8 +613,7 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 		if (of_property_read_u32(pp, "linux,code", &button->code)) {
 			dev_err(dev, "Button without keycode: 0x%x\n",
 				button->gpio);
-			error = -EINVAL;
-			goto err_free_pdata;
+			return ERR_PTR(-EINVAL);
 		}
 
 		button->desc = of_get_property(pp, "label", NULL);
@@ -645,17 +628,10 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 			button->debounce_interval = 5;
 	}
 
-	if (pdata->nbuttons == 0) {
-		error = -EINVAL;
-		goto err_free_pdata;
-	}
+	if (!pdata->nbuttons)
+		return ERR_PTR(-EINVAL);
 
 	return pdata;
-
-err_free_pdata:
-	kfree(pdata);
-err_out:
-	return ERR_PTR(error);
 }
 
 static struct of_device_id gpio_keys_of_match[] = {
@@ -680,8 +656,6 @@ static void gpio_remove_key(struct gpio_button_data *bdata)
 	if (bdata->timer_debounce)
 		del_timer_sync(&bdata->timer);
 	cancel_work_sync(&bdata->work);
-	if (gpio_is_valid(bdata->button->gpio))
-		gpio_free(bdata->button->gpio);
 }
 
 static int gpio_keys_probe(struct platform_device *pdev)
@@ -699,14 +673,13 @@ static int gpio_keys_probe(struct platform_device *pdev)
 			return PTR_ERR(pdata);
 	}
 
-	ddata = kzalloc(sizeof(struct gpio_keys_drvdata) +
-			pdata->nbuttons * sizeof(struct gpio_button_data),
-			GFP_KERNEL);
-	input = input_allocate_device();
+	ddata = devm_kzalloc(&pdev->dev, sizeof(struct gpio_keys_drvdata) +
+			     pdata->nbuttons * sizeof(struct gpio_button_data),
+			     GFP_KERNEL);
+	input = devm_input_allocate_device(&pdev->dev);
 	if (!ddata || !input) {
 		dev_err(dev, "failed to allocate state\n");
-		error = -ENOMEM;
-		goto fail1;
+		return -ENOMEM;
 	}
 
 	ddata->pdata = pdata;
@@ -767,13 +740,6 @@ static int gpio_keys_probe(struct platform_device *pdev)
 	while (--i >= 0)
 		gpio_remove_key(&ddata->data[i]);
 
- fail1:
-	input_free_device(input);
-	kfree(ddata);
-	/* If we have no platform data, we allocated pdata dynamically. */
-	if (!dev_get_platdata(&pdev->dev))
-		kfree(pdata);
-
 	return error;
 }
 
@@ -792,12 +758,6 @@ static int gpio_keys_remove(struct platform_device *pdev)
 
 	input_unregister_device(input);
 
-	/* If we have no platform data, we allocated pdata dynamically. */
-	if (!dev_get_platdata(&pdev->dev))
-		kfree(ddata->pdata);
-
-	kfree(ddata);
-
 	return 0;
 }
 
-- 
1.8.1.5


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* [PATCH 3/3] input: gpio_keys{_polled}: Replace enable/disable callbacks with regulator API
  2013-08-07  8:25 [PATCH 1/3] input: gpio_keys_polled: Convert to devm-* API Alexander Shiyan
  2013-08-07  8:25 ` [PATCH 2/3] input: gpio_keys: " Alexander Shiyan
@ 2013-08-07  8:25 ` Alexander Shiyan
  1 sibling, 0 replies; 3+ messages in thread
From: Alexander Shiyan @ 2013-08-07  8:25 UTC (permalink / raw)
  To: linux-input; +Cc: Linus Walleij, Dmitry Torokhov, Alexander Shiyan

Typical use to enable/disable is a power switch, so replace these
callbacks to the regulator API. This will allow using devices,
which depends on the regulator, from devicetree.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
 .../devicetree/bindings/input/gpio-keys-polled.txt |  1 +
 arch/arm/mach-ux500/board-mop500-regulators.c      |  2 +-
 arch/arm/mach-ux500/board-mop500.c                 | 25 ----------------------
 drivers/input/keyboard/gpio_keys.c                 | 16 ++++++++------
 drivers/input/keyboard/gpio_keys_polled.c          | 16 ++++++++------
 include/linux/gpio_keys.h                          |  2 --
 6 files changed, 22 insertions(+), 40 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
index 313abef..4dba546 100644
--- a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
+++ b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
@@ -7,6 +7,7 @@ Required properties:
 Optional properties:
 	- autorepeat: Boolean, Enable auto repeat feature of Linux input
 	  subsystem.
+	- keys-supply: The regulator to drive the GPIOs.
 
 Each button (key) is represented as a sub-node of "gpio-keys-polled":
 Subnode properties:
diff --git a/arch/arm/mach-ux500/board-mop500-regulators.c b/arch/arm/mach-ux500/board-mop500-regulators.c
index 0dc44c6..6952117 100644
--- a/arch/arm/mach-ux500/board-mop500-regulators.c
+++ b/arch/arm/mach-ux500/board-mop500-regulators.c
@@ -76,7 +76,7 @@ static struct regulator_consumer_supply ab8500_vaux1_consumers[] = {
 	/* Secondary display, ST uib */
 	REGULATOR_SUPPLY("vdd1", "samsung_s6d16d0.1"),
 	/* SFH7741 proximity sensor */
-	REGULATOR_SUPPLY("vcc", "gpio-keys.0"),
+	REGULATOR_SUPPLY("keys", "gpio-keys.0"),
 	/* BH1780GLS ambient light sensor */
 	REGULATOR_SUPPLY("vcc", "2-0029"),
 	/* lsm303dlh accelerometer */
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index df5d27a..f0b327d 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -375,15 +375,9 @@ static struct gpio_keys_button mop500_gpio_keys[] = {
 	}
 };
 
-static struct regulator *prox_regulator;
-static int mop500_prox_activate(struct device *dev);
-static void mop500_prox_deactivate(struct device *dev);
-
 static struct gpio_keys_platform_data mop500_gpio_keys_data = {
 	.buttons	= mop500_gpio_keys,
 	.nbuttons	= ARRAY_SIZE(mop500_gpio_keys),
-	.enable		= mop500_prox_activate,
-	.disable	= mop500_prox_deactivate,
 };
 
 static struct platform_device mop500_gpio_keys_device = {
@@ -394,25 +388,6 @@ static struct platform_device mop500_gpio_keys_device = {
 	},
 };
 
-static int mop500_prox_activate(struct device *dev)
-{
-	prox_regulator = regulator_get(&mop500_gpio_keys_device.dev,
-						"vcc");
-	if (IS_ERR(prox_regulator)) {
-		dev_err(&mop500_gpio_keys_device.dev,
-			"no regulator\n");
-		return PTR_ERR(prox_regulator);
-	}
-
-	return regulator_enable(prox_regulator);
-}
-
-static void mop500_prox_deactivate(struct device *dev)
-{
-	regulator_disable(prox_regulator);
-	regulator_put(prox_regulator);
-}
-
 static struct cryp_platform_data u8500_cryp1_platform_data = {
 		.mem_to_engine = {
 				.dir = DMA_MEM_TO_DEV,
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 8fe28d7..785befc 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -29,6 +29,7 @@
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/spinlock.h>
+#include <linux/regulator/consumer.h>
 
 struct gpio_button_data {
 	const struct gpio_keys_button *button;
@@ -47,6 +48,7 @@ struct gpio_keys_drvdata {
 	struct input_dev *input;
 	struct mutex disable_lock;
 	struct gpio_button_data data[0];
+	struct regulator *regulator;
 };
 
 /*
@@ -527,11 +529,10 @@ static void gpio_keys_report_state(struct gpio_keys_drvdata *ddata)
 static int gpio_keys_open(struct input_dev *input)
 {
 	struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
-	const struct gpio_keys_platform_data *pdata = ddata->pdata;
 	int error;
 
-	if (pdata->enable) {
-		error = pdata->enable(input->dev.parent);
+	if (!IS_ERR(ddata->regulator)) {
+		error = regulator_enable(ddata->regulator);
 		if (error)
 			return error;
 	}
@@ -545,10 +546,9 @@ static int gpio_keys_open(struct input_dev *input)
 static void gpio_keys_close(struct input_dev *input)
 {
 	struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
-	const struct gpio_keys_platform_data *pdata = ddata->pdata;
 
-	if (pdata->disable)
-		pdata->disable(input->dev.parent);
+	if (!IS_ERR(ddata->regulator))
+		regulator_disable(ddata->regulator);
 }
 
 /*
@@ -682,6 +682,10 @@ static int gpio_keys_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	ddata->regulator = devm_regulator_get(&pdev->dev, "keys");
+	if (PTR_ERR(ddata->regulator) == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+
 	ddata->pdata = pdata;
 	ddata->input = input;
 	mutex_init(&ddata->disable_lock);
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index b589d12..405afbd 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -27,6 +27,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
+#include <linux/regulator/consumer.h>
 
 #define DRV_NAME	"gpio-keys-polled"
 
@@ -42,6 +43,7 @@ struct gpio_keys_polled_dev {
 	struct device *dev;
 	const struct gpio_keys_platform_data *pdata;
 	struct gpio_keys_button_data data[0];
+	struct regulator *regulator;
 };
 
 static void gpio_keys_polled_check_state(struct input_dev *input,
@@ -87,19 +89,17 @@ static void gpio_keys_polled_poll(struct input_polled_dev *dev)
 static void gpio_keys_polled_open(struct input_polled_dev *dev)
 {
 	struct gpio_keys_polled_dev *bdev = dev->private;
-	const struct gpio_keys_platform_data *pdata = bdev->pdata;
 
-	if (pdata->enable)
-		pdata->enable(bdev->dev);
+	if (!IS_ERR(bdev->regulator))
+		regulator_enable(bdev->regulator);
 }
 
 static void gpio_keys_polled_close(struct input_polled_dev *dev)
 {
 	struct gpio_keys_polled_dev *bdev = dev->private;
-	const struct gpio_keys_platform_data *pdata = bdev->pdata;
 
-	if (pdata->disable)
-		pdata->disable(bdev->dev);
+	if (!IS_ERR(bdev->regulator))
+		regulator_disable(bdev->regulator);
 }
 
 #ifdef CONFIG_OF
@@ -226,6 +226,10 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	bdev->regulator = devm_regulator_get(&pdev->dev, "keys");
+	if (PTR_ERR(bdev->regulator) == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+
 	poll_dev = input_allocate_polled_device();
 	if (!poll_dev) {
 		dev_err(dev, "no memory for polled device\n");
diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
index a7e977f..05d3bf8 100644
--- a/include/linux/gpio_keys.h
+++ b/include/linux/gpio_keys.h
@@ -23,8 +23,6 @@ struct gpio_keys_platform_data {
 	unsigned int poll_interval;	/* polling interval in msecs -
 					   for polling driver only */
 	unsigned int rep:1;		/* enable input subsystem auto repeat */
-	int (*enable)(struct device *dev);
-	void (*disable)(struct device *dev);
 	const char *name;		/* input device name */
 };
 
-- 
1.8.1.5


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2013-08-07  8:25 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-08-07  8:25 [PATCH 1/3] input: gpio_keys_polled: Convert to devm-* API Alexander Shiyan
2013-08-07  8:25 ` [PATCH 2/3] input: gpio_keys: " Alexander Shiyan
2013-08-07  8:25 ` [PATCH 3/3] input: gpio_keys{_polled}: Replace enable/disable callbacks with regulator API Alexander Shiyan

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