[PATCH 1/8] regulator: max1586: Remove regulator_dev pointer from state container

[PATCH 1/8] regulator: max1586: Remove regulator_dev pointer from state container

[Krzysztof Kozlowski]

Don't store pointer to regulator_dev returned by
devm_regulator_register() in state container. It isn't used anywhere
outside of max1586_pmic_probe() function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max1586.c |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c
index e242dd316d36..c2a40a1a9e3e 100644
--- a/drivers/regulator/max1586.c
+++ b/drivers/regulator/max1586.c
@@ -46,8 +46,6 @@ struct max1586_data {
 
 	unsigned int v3_curr_sel;
 	unsigned int v6_curr_sel;
-
-	struct regulator_dev *rdev[0];
 };
 
 /*
@@ -162,7 +160,6 @@ static struct regulator_desc max1586_reg[] = {
 static int max1586_pmic_probe(struct i2c_client *client,
 					const struct i2c_device_id *i2c_id)
 {
-	struct regulator_dev **rdev;
 	struct max1586_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct regulator_config config = { };
 	struct max1586_data *max1586;
@@ -186,8 +183,9 @@ static int max1586_pmic_probe(struct i2c_client *client,
 	max1586->v3_curr_sel = 24; /* 1.3V */
 	max1586->v6_curr_sel = 0;
 
-	rdev = max1586->rdev;
 	for (i = 0; i < pdata->num_subdevs && i <= MAX1586_V6; i++) {
+		struct regulator_dev *rdev;
+
 		id = pdata->subdevs[i].id;
 		if (!pdata->subdevs[i].platform_data)
 			continue;
@@ -207,12 +205,12 @@ static int max1586_pmic_probe(struct i2c_client *client,
 		config.init_data = pdata->subdevs[i].platform_data;
 		config.driver_data = max1586;
 
-		rdev[i] = devm_regulator_register(&client->dev,
+		rdev = devm_regulator_register(&client->dev,
 						  &max1586_reg[id], &config);
-		if (IS_ERR(rdev[i])) {
+		if (IS_ERR(rdev)) {
 			dev_err(&client->dev, "failed to register %s\n",
 				max1586_reg[id].name);
-			return PTR_ERR(rdev[i]);
+			return PTR_ERR(rdev);
 		}
 	}
 
-- 
1.7.9.5

[PATCH 2/8] regulator: max77686: Remove regulator_dev array from state container

[Krzysztof Kozlowski]

Don't store array of regulator_dev returned by devm_regulator_register()
in state container. It isn't used anywhere outside of
max77686_pmic_probe() function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max77686.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c
index ae001ccf26f4..a46e9af21f36 100644
--- a/drivers/regulator/max77686.c
+++ b/drivers/regulator/max77686.c
@@ -65,7 +65,6 @@ enum max77686_ramp_rate {
 };
 
 struct max77686_data {
-	struct regulator_dev *rdev[MAX77686_REGULATORS];
 	unsigned int opmode[MAX77686_REGULATORS];
 };
 
@@ -474,16 +473,18 @@ static int max77686_pmic_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, max77686);
 
 	for (i = 0; i < MAX77686_REGULATORS; i++) {
+		struct regulator_dev *rdev;
+
 		config.init_data = pdata->regulators[i].initdata;
 		config.of_node = pdata->regulators[i].of_node;
 
 		max77686->opmode[i] = regulators[i].enable_mask;
-		max77686->rdev[i] = devm_regulator_register(&pdev->dev,
+		rdev = devm_regulator_register(&pdev->dev,
 						&regulators[i], &config);
-		if (IS_ERR(max77686->rdev[i])) {
+		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev,
 				"regulator init failed for %d\n", i);
-			return PTR_ERR(max77686->rdev[i]);
+			return PTR_ERR(rdev);
 		}
 	}
 
-- 
1.7.9.5

[PATCH 3/8] regulator: max77693: Remove state container as it is not needed

[Krzysztof Kozlowski]

Don't store pointers to regulator_dev returned by
devm_regulator_register() in allocated memory in state container. They
aren't used anywhere outside of max77693_pmic_probe() function.

This change allows removing completely the 'struct max77693_pmic_dev'
state container as none of its fields are used outside of probe.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max77693.c |   37 ++++++-------------------------------
 1 file changed, 6 insertions(+), 31 deletions(-)

diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c
index 5fb899f461d0..4352924bfb98 100644
--- a/drivers/regulator/max77693.c
+++ b/drivers/regulator/max77693.c
@@ -34,13 +34,6 @@
 
 #define CHGIN_ILIM_STEP_20mA			20000
 
-struct max77693_pmic_dev {
-	struct device *dev;
-	struct max77693_dev *iodev;
-	int num_regulators;
-	struct regulator_dev **rdev;
-};
-
 /* CHARGER regulator ops */
 /* CHARGER regulator uses two bits for enabling */
 static int max77693_chg_is_enabled(struct regulator_dev *rdev)
@@ -229,7 +222,6 @@ static int max77693_pmic_init_rdata(struct device *dev,
 static int max77693_pmic_probe(struct platform_device *pdev)
 {
 	struct max77693_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct max77693_pmic_dev *max77693_pmic;
 	struct max77693_regulator_data *rdata = NULL;
 	int num_rdata, i;
 	struct regulator_config config;
@@ -240,39 +232,22 @@ static int max77693_pmic_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	max77693_pmic = devm_kzalloc(&pdev->dev,
-				sizeof(struct max77693_pmic_dev),
-				GFP_KERNEL);
-	if (!max77693_pmic)
-		return -ENOMEM;
-
-	max77693_pmic->rdev = devm_kzalloc(&pdev->dev,
-				sizeof(struct regulator_dev *) * num_rdata,
-				GFP_KERNEL);
-	if (!max77693_pmic->rdev)
-		return -ENOMEM;
-
-	max77693_pmic->dev = &pdev->dev;
-	max77693_pmic->iodev = iodev;
-	max77693_pmic->num_regulators = num_rdata;
-
 	config.dev = &pdev->dev;
 	config.regmap = iodev->regmap;
-	config.driver_data = max77693_pmic;
-	platform_set_drvdata(pdev, max77693_pmic);
 
-	for (i = 0; i < max77693_pmic->num_regulators; i++) {
+	for (i = 0; i < num_rdata; i++) {
 		int id = rdata[i].id;
+		struct regulator_dev *rdev;
 
 		config.init_data = rdata[i].initdata;
 		config.of_node = rdata[i].of_node;
 
-		max77693_pmic->rdev[i] = devm_regulator_register(&pdev->dev,
+		rdev = devm_regulator_register(&pdev->dev,
 						&regulators[id], &config);
-		if (IS_ERR(max77693_pmic->rdev[i])) {
-			dev_err(max77693_pmic->dev,
+		if (IS_ERR(rdev)) {
+			dev_err(&pdev->dev,
 				"Failed to initialize regulator-%d\n", id);
-			return PTR_ERR(max77693_pmic->rdev[i]);
+			return PTR_ERR(rdev);
 		}
 	}
 
-- 
1.7.9.5

[PATCH 4/8] regulator: max8649: Remove regulator_dev pointer from state container

[Krzysztof Kozlowski]

Don't store pointer to regulator_dev returned by
evm_regulator_register() an state container. It isn't used anywhere
outside of max8649_regulator_probe() function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max8649.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c
index 7f049c92ee52..3172da847d24 100644
--- a/drivers/regulator/max8649.c
+++ b/drivers/regulator/max8649.c
@@ -49,7 +49,6 @@
 #define MAX8649_RAMP_DOWN	(1 << 1)
 
 struct max8649_regulator_info {
-	struct regulator_dev	*regulator;
 	struct device		*dev;
 	struct regmap		*regmap;
 
@@ -154,6 +153,7 @@ static int max8649_regulator_probe(struct i2c_client *client,
 {
 	struct max8649_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct max8649_regulator_info *info = NULL;
+	struct regulator_dev *regulator;
 	struct regulator_config config = { };
 	unsigned int val;
 	unsigned char data;
@@ -234,12 +234,12 @@ static int max8649_regulator_probe(struct i2c_client *client,
 	config.driver_data = info;
 	config.regmap = info->regmap;
 
-	info->regulator = devm_regulator_register(&client->dev, &dcdc_desc,
+	regulator = devm_regulator_register(&client->dev, &dcdc_desc,
 						  &config);
-	if (IS_ERR(info->regulator)) {
+	if (IS_ERR(regulator)) {
 		dev_err(info->dev, "failed to register regulator %s\n",
 			dcdc_desc.name);
-		return PTR_ERR(info->regulator);
+		return PTR_ERR(regulator);
 	}
 
 	return 0;
-- 
1.7.9.5

[PATCH 5/8] regulator: max8907: Remove regulator_dev array from state container

[Krzysztof Kozlowski]

Don't store array of regulator_dev returned by devm_regulator_register()
in state container. It isn't used anywhere outside of
max8907_regulator_probe() function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max8907-regulator.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/max8907-regulator.c b/drivers/regulator/max8907-regulator.c
index 0c5fe6c6ac26..58959ee0249b 100644
--- a/drivers/regulator/max8907-regulator.c
+++ b/drivers/regulator/max8907-regulator.c
@@ -34,7 +34,6 @@
 
 struct max8907_regulator {
 	struct regulator_desc desc[MAX8907_NUM_REGULATORS];
-	struct regulator_dev *rdev[MAX8907_NUM_REGULATORS];
 };
 
 #define REG_MBATT() \
@@ -311,6 +310,8 @@ static int max8907_regulator_probe(struct platform_device *pdev)
 	}
 
 	for (i = 0; i < MAX8907_NUM_REGULATORS; i++) {
+		struct regulator_dev *rdev;
+
 		config.dev = pdev->dev.parent;
 		if (pdata)
 			idata = pdata->init_data[i];
@@ -350,13 +351,13 @@ static int max8907_regulator_probe(struct platform_device *pdev)
 				pmic->desc[i].ops = &max8907_out5v_hwctl_ops;
 		}
 
-		pmic->rdev[i] = devm_regulator_register(&pdev->dev,
+		rdev = devm_regulator_register(&pdev->dev,
 						&pmic->desc[i], &config);
-		if (IS_ERR(pmic->rdev[i])) {
+		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev,
 				"failed to register %s regulator\n",
 				pmic->desc[i].name);
-			return PTR_ERR(pmic->rdev[i]);
+			return PTR_ERR(rdev);
 		}
 	}
 
-- 
1.7.9.5

[PATCH 6/8] regulator: max8925: Remove unused state container fields

[Krzysztof Kozlowski]

Remove fields from 'struct max8907_regulator' which are not used
anywhere in the driver.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max8925-regulator.c |    3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/regulator/max8925-regulator.c b/drivers/regulator/max8925-regulator.c
index 759510789e71..17c16266c03f 100644
--- a/drivers/regulator/max8925-regulator.c
+++ b/drivers/regulator/max8925-regulator.c
@@ -36,9 +36,7 @@
 
 struct max8925_regulator_info {
 	struct regulator_desc	desc;
-	struct regulator_dev	*regulator;
 	struct i2c_client	*i2c;
-	struct max8925_chip	*chip;
 
 	int	vol_reg;
 	int	enable_reg;
@@ -303,7 +301,6 @@ static int max8925_regulator_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 	ri->i2c = chip->i2c;
-	ri->chip = chip;
 
 	config.dev = &pdev->dev;
 	config.driver_data = ri;
-- 
1.7.9.5

[PATCH 7/8] regulator: max8952: Use managed regulator registration

[Krzysztof Kozlowski]

Use managed devm_regulator_register to simplify the driver probe and
driver remove functions. This allows removing from state container the
pointer to regulator_dev returned on registering the regulator.

Patch also removes from state container pointer to 'struct device' as it
is not used anywhere outside of max8952_pmic_probe() function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max8952.c |   21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c
index 788e5ae2af1b..465f21f9d6ee 100644
--- a/drivers/regulator/max8952.c
+++ b/drivers/regulator/max8952.c
@@ -48,9 +48,7 @@ enum {
 
 struct max8952_data {
 	struct i2c_client	*client;
-	struct device		*dev;
 	struct max8952_platform_data *pdata;
-	struct regulator_dev	*rdev;
 
 	bool vid0;
 	bool vid1;
@@ -199,6 +197,7 @@ static int max8952_pmic_probe(struct i2c_client *client,
 	struct max8952_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct regulator_config config = { };
 	struct max8952_data *max8952;
+	struct regulator_dev *rdev;
 
 	int ret = 0, err = 0;
 
@@ -219,10 +218,9 @@ static int max8952_pmic_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	max8952->client = client;
-	max8952->dev = &client->dev;
 	max8952->pdata = pdata;
 
-	config.dev = max8952->dev;
+	config.dev = &client->dev;
 	config.init_data = pdata->reg_data;
 	config.driver_data = max8952;
 	config.of_node = client->dev.of_node;
@@ -231,11 +229,11 @@ static int max8952_pmic_probe(struct i2c_client *client,
 	if (pdata->reg_data->constraints.boot_on)
 		config.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH;
 
-	max8952->rdev = regulator_register(&regulator, &config);
+	rdev = devm_regulator_register(&client->dev, &regulator, &config);
 
-	if (IS_ERR(max8952->rdev)) {
-		ret = PTR_ERR(max8952->rdev);
-		dev_err(max8952->dev, "regulator init failed (%d)\n", ret);
+	if (IS_ERR(rdev)) {
+		ret = PTR_ERR(rdev);
+		dev_err(&client->dev, "regulator init failed (%d)\n", ret);
 		return ret;
 	}
 
@@ -263,7 +261,7 @@ static int max8952_pmic_probe(struct i2c_client *client,
 		err = 3;
 
 	if (err) {
-		dev_warn(max8952->dev, "VID0/1 gpio invalid: "
+		dev_warn(&client->dev, "VID0/1 gpio invalid: "
 				"DVS not available.\n");
 		max8952->vid0 = 0;
 		max8952->vid1 = 0;
@@ -274,7 +272,7 @@ static int max8952_pmic_probe(struct i2c_client *client,
 		/* Disable Pulldown of EN only */
 		max8952_write_reg(max8952, MAX8952_REG_CONTROL, 0x60);
 
-		dev_err(max8952->dev, "DVS modes disabled because VID0 and VID1"
+		dev_err(&client->dev, "DVS modes disabled because VID0 and VID1"
 				" do not have proper controls.\n");
 	} else {
 		/*
@@ -321,9 +319,6 @@ static int max8952_pmic_remove(struct i2c_client *client)
 {
 	struct max8952_data *max8952 = i2c_get_clientdata(client);
 	struct max8952_platform_data *pdata = max8952->pdata;
-	struct regulator_dev *rdev = max8952->rdev;
-
-	regulator_unregister(rdev);
 
 	gpio_free(pdata->gpio_vid0);
 	gpio_free(pdata->gpio_vid1);
-- 
1.7.9.5

[PATCH 8/8] regulator: max8973: Remove unused field from 'struct max8973_chip'

[Krzysztof Kozlowski]

The 'struct regulator_dev *rdev' of 'struct max8973_chip' isn't used
anywhere in the driver so it can be removed safely.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max8973-regulator.c |    2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index 892aa1e5b96c..552fb6d1850c 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -93,7 +93,6 @@
 struct max8973_chip {
 	struct device *dev;
 	struct regulator_desc desc;
-	struct regulator_dev *rdev;
 	struct regmap *regmap;
 	bool enable_external_control;
 	int dvs_gpio;
@@ -474,7 +473,6 @@ static int max8973_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	max->rdev = rdev;
 	return 0;
 }
 
-- 
1.7.9.5

Re: [PATCH 1/8] regulator: max1586: Remove regulator_dev pointer from state container

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 253 bytes --]

On Mon, Mar 10, 2014 at 09:32:44AM +0100, Krzysztof Kozlowski wrote:
> Don't store pointer to regulator_dev returned by
> devm_regulator_register() in state container. It isn't used anywhere
> outside of max1586_pmic_probe() function.

Applied, thanks.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

Re: [PATCH 3/8] regulator: max77693: Remove state container as it is not needed

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 278 bytes --]

On Mon, Mar 10, 2014 at 09:32:46AM +0100, Krzysztof Kozlowski wrote:
> Don't store pointers to regulator_dev returned by
> devm_regulator_register() in allocated memory in state container. They
> aren't used anywhere outside of max77693_pmic_probe() function.

Applied, thanks.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

Re: [PATCH 4/8] regulator: max8649: Remove regulator_dev pointer from state container

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 257 bytes --]

On Mon, Mar 10, 2014 at 09:32:47AM +0100, Krzysztof Kozlowski wrote:
> Don't store pointer to regulator_dev returned by
> evm_regulator_register() an state container. It isn't used anywhere
> outside of max8649_regulator_probe() function.

Applied, thanks.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

Re: [PATCH 5/8] regulator: max8907: Remove regulator_dev array from state container

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 256 bytes --]

On Mon, Mar 10, 2014 at 09:32:48AM +0100, Krzysztof Kozlowski wrote:
> Don't store array of regulator_dev returned by devm_regulator_register()
> in state container. It isn't used anywhere outside of
> max8907_regulator_probe() function.

Applied, thanks.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

Re: [PATCH 6/8] regulator: max8925: Remove unused state container fields

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 200 bytes --]

On Mon, Mar 10, 2014 at 09:32:49AM +0100, Krzysztof Kozlowski wrote:
> Remove fields from 'struct max8907_regulator' which are not used
> anywhere in the driver.

Applied with a fixed commit message.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

Re: [PATCH 7/8] regulator: max8952: Use managed regulator registration

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 297 bytes --]

On Mon, Mar 10, 2014 at 09:32:50AM +0100, Krzysztof Kozlowski wrote:
> Use managed devm_regulator_register to simplify the driver probe and
> driver remove functions. This allows removing from state container the
> pointer to regulator_dev returned on registering the regulator.

Applied, thanks.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

Re: [PATCH 8/8] regulator: max8973: Remove unused field from 'struct max8973_chip'

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 213 bytes --]

On Mon, Mar 10, 2014 at 09:32:51AM +0100, Krzysztof Kozlowski wrote:

> The 'struct regulator_dev *rdev' of 'struct max8973_chip' isn't used
> anywhere in the driver so it can be removed safely.

Applied, thanks.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

Re: [PATCH 1/8] regulator: max1586: Remove regulator_dev pointer from state container

[Krzysztof Kozlowski]

On Mon, 2014-03-10 at 09:23 +0000, Mark Brown wrote:
> On Mon, Mar 10, 2014 at 09:32:44AM +0100, Krzysztof Kozlowski wrote:
> > Don't store pointer to regulator_dev returned by
> > devm_regulator_register() in state container. It isn't used anywhere
> > outside of max1586_pmic_probe() function.
> 
> Applied, thanks.

Thanks! However I missed one cleanup related to it, so please apply also
next patch (they could be squashed if you want to).

Best regards,
Krzysztof