[PATCH 0/5] regulator: act8865: add support for act8846

[PATCH 0/5] regulator: act8865: add support for act8846

[Beniamino Galvani]

This patchset adds support for the Active-Semi act8846 PMU [1] to the
existing driver for act8865.

A dts which enables the act8846 on Radxa Rock is available at [2].

[1] http://www.active-semi.com/products/power-management-units/act88xx/
[2] https://github.com/bengal/linux/tree/act88xx-regulator

Beniamino Galvani (5):
  regulator: act8865: fix parsing of platform data
  regulator: act8865: set correct number of regulators in pdata
  regulator: act8865: prepare support for other act88xx devices
  regulator: act8865: add support for act8846
  regulator: act8865: add act8846 to DT binding documentation

 .../bindings/regulator/act8865-regulator.txt       |    7 +-
 drivers/regulator/act8865-regulator.c              |  308 +++++++++++---------
 include/linux/regulator/act8865.h                  |   23 +-
 3 files changed, 200 insertions(+), 138 deletions(-)

-- 
1.7.10.4

[PATCH 1/5] regulator: act8865: fix parsing of platform data

[Beniamino Galvani]

The driver loops through all available regulators (ACT8865_REG_NUM)
and accesses pdata->regulators[i].platform_data without checking the
actual value of num_regulators in platform data, potentially causing a
invalid memory access.

Fix this and look up the regulator init_data by id in platform data.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
 drivers/regulator/act8865-regulator.c |   29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c
index b92d7dd..fe2c038 100644
--- a/drivers/regulator/act8865-regulator.c
+++ b/drivers/regulator/act8865-regulator.c
@@ -252,6 +252,22 @@ static inline int act8865_pdata_from_dt(struct device *dev,
 }
 #endif
 
+static struct regulator_init_data
+*act8865_get_init_data(int id, struct act8865_platform_data *pdata)
+{
+	int i;
+
+	if (!pdata)
+		return NULL;
+
+	for (i = 0; i < pdata->num_regulators; i++) {
+		if (pdata->regulators[i].id == id)
+			return pdata->regulators[i].platform_data;
+	}
+
+	return NULL;
+}
+
 static int act8865_pmic_probe(struct i2c_client *client,
 			   const struct i2c_device_id *i2c_id)
 {
@@ -261,7 +277,7 @@ static int act8865_pmic_probe(struct i2c_client *client,
 	struct regulator_config config = { };
 	struct act8865 *act8865;
 	struct device_node *of_node[ACT8865_REG_NUM];
-	int i, id;
+	int i;
 	int ret = -EINVAL;
 	int error;
 
@@ -299,20 +315,17 @@ static int act8865_pmic_probe(struct i2c_client *client,
 
 	/* Finally register devices */
 	for (i = 0; i < ACT8865_REG_NUM; i++) {
-
-		id = pdata->regulators[i].id;
+		const struct regulator_desc *desc = &act8865_reg[i];
 
 		config.dev = dev;
-		config.init_data = pdata->regulators[i].platform_data;
+		config.init_data = act8865_get_init_data(desc->id, pdata);
 		config.of_node = of_node[i];
 		config.driver_data = act8865;
 		config.regmap = act8865->regmap;
 
-		rdev = devm_regulator_register(&client->dev, &act8865_reg[i],
-					       &config);
+		rdev = devm_regulator_register(&client->dev, desc, &config);
 		if (IS_ERR(rdev)) {
-			dev_err(dev, "failed to register %s\n",
-				act8865_reg[id].name);
+			dev_err(dev, "failed to register %s\n", desc->name);
 			return PTR_ERR(rdev);
 		}
 	}
-- 
1.7.10.4

RE: [PATCH 1/5] regulator: act8865: fix parsing of platform data

[Yang, Wenyou]

> -----Original Message-----
> From: Beniamino Galvani [mailto:b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org]
> Sent: Sunday, June 22, 2014 11:32 PM
> To: Liam Girdwood; Mark Brown
> Cc: Yang, Wenyou; Rob Herring; Pawel Moll; Mark Rutland; Ian Campbell;
> Kumar Gala; Heiko Stuebner; devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux-
> doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux-arm-
> kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org; Beniamino Galvani
> Subject: [PATCH 1/5] regulator: act8865: fix parsing of platform data
> 
> The driver loops through all available regulators (ACT8865_REG_NUM) and
> accesses pdata->regulators[i].platform_data without checking the actual
> value of num_regulators in platform data, potentially causing a invalid
> memory access.
> 
> Fix this and look up the regulator init_data by id in platform data.
> 
> Signed-off-by: Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  drivers/regulator/act8865-regulator.c |   29 +++++++++++++++++++++----
> ----
>  1 file changed, 21 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/regulator/act8865-regulator.c
> b/drivers/regulator/act8865-regulator.c
> index b92d7dd..fe2c038 100644
> --- a/drivers/regulator/act8865-regulator.c
> +++ b/drivers/regulator/act8865-regulator.c
> @@ -252,6 +252,22 @@ static inline int act8865_pdata_from_dt(struct
> device *dev,  }  #endif
> 
> +static struct regulator_init_data
> +*act8865_get_init_data(int id, struct act8865_platform_data *pdata) {
> +	int i;
> +
> +	if (!pdata)
> +		return NULL;
> +
> +	for (i = 0; i < pdata->num_regulators; i++) {
> +		if (pdata->regulators[i].id == id)
> +			return pdata->regulators[i].platform_data;
> +	}
> +
> +	return NULL;
> +}
> +
>  static int act8865_pmic_probe(struct i2c_client *client,
>  			   const struct i2c_device_id *i2c_id)  { @@ -261,7
> +277,7 @@ static int act8865_pmic_probe(struct i2c_client *client,
>  	struct regulator_config config = { };
>  	struct act8865 *act8865;
>  	struct device_node *of_node[ACT8865_REG_NUM];
> -	int i, id;
> +	int i;
>  	int ret = -EINVAL;
>  	int error;
> 
> @@ -299,20 +315,17 @@ static int act8865_pmic_probe(struct i2c_client
> *client,
> 
>  	/* Finally register devices */
>  	for (i = 0; i < ACT8865_REG_NUM; i++) {
> -
> -		id = pdata->regulators[i].id;
> +		const struct regulator_desc *desc = &act8865_reg[i];
> 
>  		config.dev = dev;
> -		config.init_data = pdata->regulators[i].platform_data;
> +		config.init_data = act8865_get_init_data(desc->id, pdata);
>  		config.of_node = of_node[i];
>  		config.driver_data = act8865;
>  		config.regmap = act8865->regmap;
> 
> -		rdev = devm_regulator_register(&client->dev,
> &act8865_reg[i],
> -					       &config);
> +		rdev = devm_regulator_register(&client->dev, desc, &config);
>  		if (IS_ERR(rdev)) {
> -			dev_err(dev, "failed to register %s\n",
> -				act8865_reg[id].name);
> +			dev_err(dev, "failed to register %s\n", desc->name);
>  			return PTR_ERR(rdev);
>  		}
>  	}
> --
> 1.7.10.4


Tested on at91-sama5d3_xplained with ACT8865

Tested-by Wenyou.Yang <wenyou.yang-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>

Best Regards,
Wenyou Yang
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Re: [PATCH 1/5] regulator: act8865: fix parsing of platform data

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 324 bytes --]

On Sun, Jun 22, 2014 at 05:31:41PM +0200, Beniamino Galvani wrote:
> The driver loops through all available regulators (ACT8865_REG_NUM)
> and accesses pdata->regulators[i].platform_data without checking the
> actual value of num_regulators in platform data, potentially causing a
> invalid memory access.

Applied, thanks.

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[PATCH 2/5] regulator: act8865: set correct number of regulators in pdata

[Beniamino Galvani]

When platform data is populated from DT all the regulators are
instantiated and the value of num_regulators should be the number of
all available regulators rather than the number of matched ones.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
 drivers/regulator/act8865-regulator.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c
index fe2c038..b03a0e8 100644
--- a/drivers/regulator/act8865-regulator.c
+++ b/drivers/regulator/act8865-regulator.c
@@ -230,7 +230,7 @@ static int act8865_pdata_from_dt(struct device *dev,
 	if (!pdata->regulators)
 		return -ENOMEM;
 
-	pdata->num_regulators = matched;
+	pdata->num_regulators = ARRAY_SIZE(act8865_matches);
 	regulator = pdata->regulators;
 
 	for (i = 0; i < ARRAY_SIZE(act8865_matches); i++) {
-- 
1.7.10.4

RE: [PATCH 2/5] regulator: act8865: set correct number of regulators in pdata

[Yang, Wenyou]

> -----Original Message-----
> From: Beniamino Galvani [mailto:b.galvani@gmail.com]
> Sent: Sunday, June 22, 2014 11:32 PM
> To: Liam Girdwood; Mark Brown
> Cc: Yang, Wenyou; Rob Herring; Pawel Moll; Mark Rutland; Ian Campbell;
> Kumar Gala; Heiko Stuebner; devicetree@vger.kernel.org; linux-
> doc@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; Beniamino Galvani
> Subject: [PATCH 2/5] regulator: act8865: set correct number of
> regulators in pdata
> 
> When platform data is populated from DT all the regulators are
> instantiated and the value of num_regulators should be the number of
> all available regulators rather than the number of matched ones.
> 
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> ---
>  drivers/regulator/act8865-regulator.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/regulator/act8865-regulator.c
> b/drivers/regulator/act8865-regulator.c
> index fe2c038..b03a0e8 100644
> --- a/drivers/regulator/act8865-regulator.c
> +++ b/drivers/regulator/act8865-regulator.c
> @@ -230,7 +230,7 @@ static int act8865_pdata_from_dt(struct device *dev,
>  	if (!pdata->regulators)
>  		return -ENOMEM;
> 
> -	pdata->num_regulators = matched;
> +	pdata->num_regulators = ARRAY_SIZE(act8865_matches);
>  	regulator = pdata->regulators;
> 
>  	for (i = 0; i < ARRAY_SIZE(act8865_matches); i++) {
> --
> 1.7.10.4


Tested on at91-sama5d3_xplained with ACT8865

Tested-by Wenyou.Yang <wenyou.yang@atmel.com>

Best Regards,
Wenyou Yang

Re: [PATCH 2/5] regulator: act8865: set correct number of regulators in pdata

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 423 bytes --]

On Sun, Jun 22, 2014 at 05:31:42PM +0200, Beniamino Galvani wrote:
> When platform data is populated from DT all the regulators are
> instantiated and the value of num_regulators should be the number of
> all available regulators rather than the number of matched ones.

Could you go into more detail on your logic on this one please?  The
platform data (and DT configuration) for regulators should be completely
optional.

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Re: [PATCH 2/5] regulator: act8865: set correct number of regulators in pdata

[Beniamino Galvani]

On Fri, Jun 27, 2014 at 05:07:25PM +0100, Mark Brown wrote:
> On Sun, Jun 22, 2014 at 05:31:42PM +0200, Beniamino Galvani wrote:
> > When platform data is populated from DT all the regulators are
> > instantiated and the value of num_regulators should be the number of
> > all available regulators rather than the number of matched ones.
> 
> Could you go into more detail on your logic on this one please?  The
> platform data (and DT configuration) for regulators should be completely
> optional.

pdata contains an array of struct act8865_regulator_data and a
num_regulators field which should hold the number of elements in the
array, if I understand correctly.

So in the current code, when populating platform data from DT, there
is a mismatch between the number of elements that are put in the array
(ARRAY_SIZE(act8865_matches)) and the value of num_regulators, which
is set to the number of regulators found in the DT.

In case of missing regulator nodes in DT, pdata->regulators will be
populated with all the regulators but their init_data will be NULL.

Beniamino
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Re: [PATCH 2/5] regulator: act8865: set correct number of regulators in pdata

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1346 bytes --]

On Sun, Jun 29, 2014 at 11:46:43AM +0200, Beniamino Galvani wrote:
> On Fri, Jun 27, 2014 at 05:07:25PM +0100, Mark Brown wrote:
> > On Sun, Jun 22, 2014 at 05:31:42PM +0200, Beniamino Galvani wrote:
> > > When platform data is populated from DT all the regulators are
> > > instantiated and the value of num_regulators should be the number of
> > > all available regulators rather than the number of matched ones.

> > Could you go into more detail on your logic on this one please?  The
> > platform data (and DT configuration) for regulators should be completely
> > optional.

> pdata contains an array of struct act8865_regulator_data and a
> num_regulators field which should hold the number of elements in the
> array, if I understand correctly.

> So in the current code, when populating platform data from DT, there
> is a mismatch between the number of elements that are put in the array
> (ARRAY_SIZE(act8865_matches)) and the value of num_regulators, which
> is set to the number of regulators found in the DT.

> In case of missing regulator nodes in DT, pdata->regulators will be
> populated with all the regulators but their init_data will be NULL.

OK, so that was slightly unclear but I see what you're saying now - the
issue isn't that there will be fewer valid elements in the array, it's
that the array is sparsely populated.

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Re: [PATCH 2/5] regulator: act8865: set correct number of regulators in pdata

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 288 bytes --]

On Sun, Jun 22, 2014 at 05:31:42PM +0200, Beniamino Galvani wrote:
> When platform data is populated from DT all the regulators are
> instantiated and the value of num_regulators should be the number of
> all available regulators rather than the number of matched ones.

Applied, thanks.

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[PATCH 3/5] regulator: act8865: prepare support for other act88xx devices

[Beniamino Galvani]

This patch prepares support for other devices in the act88xx family of
PMUs manufactured by Active-Semi.

http://www.active-semi.com/products/power-management-units/act88xx/

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
 drivers/regulator/act8865-regulator.c |  212 +++++++++++++--------------------
 include/linux/regulator/act8865.h     |    6 +-
 2 files changed, 88 insertions(+), 130 deletions(-)

diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c
index b03a0e8..c604b34 100644
--- a/drivers/regulator/act8865-regulator.c
+++ b/drivers/regulator/act8865-regulator.c
@@ -1,6 +1,7 @@
 /*
- * act8865-regulator.c - Voltage regulation for the active-semi ACT8865
- * http://www.active-semi.com/sheets/ACT8865_Datasheet.pdf
+ * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
+ *
+ * http://www.active-semi.com/products/power-management-units/act88xx/
  *
  * Copyright (C) 2013 Atmel Corporation
  *
@@ -70,7 +71,7 @@ static const struct regmap_config act8865_regmap_config = {
 	.val_bits = 8,
 };
 
-static const struct regulator_linear_range act8865_volatge_ranges[] = {
+static const struct regulator_linear_range act8865_voltage_ranges[] = {
 	REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
 	REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
 	REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
@@ -86,110 +87,35 @@ static struct regulator_ops act8865_ops = {
 	.is_enabled		= regulator_is_enabled_regmap,
 };
 
-static const struct regulator_desc act8865_reg[] = {
-	{
-		.name = "DCDC_REG1",
-		.id = ACT8865_ID_DCDC1,
-		.ops = &act8865_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = ACT8865_VOLTAGE_NUM,
-		.linear_ranges = act8865_volatge_ranges,
-		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
-		.vsel_reg = ACT8865_DCDC1_VSET1,
-		.vsel_mask = ACT8865_VSEL_MASK,
-		.enable_reg = ACT8865_DCDC1_CTRL,
-		.enable_mask = ACT8865_ENA,
-		.owner = THIS_MODULE,
-	},
-	{
-		.name = "DCDC_REG2",
-		.id = ACT8865_ID_DCDC2,
-		.ops = &act8865_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = ACT8865_VOLTAGE_NUM,
-		.linear_ranges = act8865_volatge_ranges,
-		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
-		.vsel_reg = ACT8865_DCDC2_VSET1,
-		.vsel_mask = ACT8865_VSEL_MASK,
-		.enable_reg = ACT8865_DCDC2_CTRL,
-		.enable_mask = ACT8865_ENA,
-		.owner = THIS_MODULE,
-	},
-	{
-		.name = "DCDC_REG3",
-		.id = ACT8865_ID_DCDC3,
-		.ops = &act8865_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = ACT8865_VOLTAGE_NUM,
-		.linear_ranges = act8865_volatge_ranges,
-		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
-		.vsel_reg = ACT8865_DCDC3_VSET1,
-		.vsel_mask = ACT8865_VSEL_MASK,
-		.enable_reg = ACT8865_DCDC3_CTRL,
-		.enable_mask = ACT8865_ENA,
-		.owner = THIS_MODULE,
-	},
-	{
-		.name = "LDO_REG1",
-		.id = ACT8865_ID_LDO1,
-		.ops = &act8865_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = ACT8865_VOLTAGE_NUM,
-		.linear_ranges = act8865_volatge_ranges,
-		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
-		.vsel_reg = ACT8865_LDO1_VSET,
-		.vsel_mask = ACT8865_VSEL_MASK,
-		.enable_reg = ACT8865_LDO1_CTRL,
-		.enable_mask = ACT8865_ENA,
-		.owner = THIS_MODULE,
-	},
-	{
-		.name = "LDO_REG2",
-		.id = ACT8865_ID_LDO2,
-		.ops = &act8865_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = ACT8865_VOLTAGE_NUM,
-		.linear_ranges = act8865_volatge_ranges,
-		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
-		.vsel_reg = ACT8865_LDO2_VSET,
-		.vsel_mask = ACT8865_VSEL_MASK,
-		.enable_reg = ACT8865_LDO2_CTRL,
-		.enable_mask = ACT8865_ENA,
-		.owner = THIS_MODULE,
-	},
-	{
-		.name = "LDO_REG3",
-		.id = ACT8865_ID_LDO3,
-		.ops = &act8865_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = ACT8865_VOLTAGE_NUM,
-		.linear_ranges = act8865_volatge_ranges,
-		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
-		.vsel_reg = ACT8865_LDO3_VSET,
-		.vsel_mask = ACT8865_VSEL_MASK,
-		.enable_reg = ACT8865_LDO3_CTRL,
-		.enable_mask = ACT8865_ENA,
-		.owner = THIS_MODULE,
-	},
-	{
-		.name = "LDO_REG4",
-		.id = ACT8865_ID_LDO4,
-		.ops = &act8865_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = ACT8865_VOLTAGE_NUM,
-		.linear_ranges = act8865_volatge_ranges,
-		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
-		.vsel_reg = ACT8865_LDO4_VSET,
-		.vsel_mask = ACT8865_VSEL_MASK,
-		.enable_reg = ACT8865_LDO4_CTRL,
-		.enable_mask = ACT8865_ENA,
-		.owner = THIS_MODULE,
-	},
+#define ACT88xx_REG(_name, _family, _id, _vsel_reg)			\
+	[_family##_ID_##_id] = {					\
+		.name			= _name,			\
+		.id			= _family##_ID_##_id,		\
+		.type			= REGULATOR_VOLTAGE,		\
+		.ops			= &act8865_ops,			\
+		.n_voltages		= ACT8865_VOLTAGE_NUM,		\
+		.linear_ranges		= act8865_voltage_ranges,	\
+		.n_linear_ranges	= ARRAY_SIZE(act8865_voltage_ranges), \
+		.vsel_reg		= _family##_##_id##_##_vsel_reg, \
+		.vsel_mask		= ACT8865_VSEL_MASK,		\
+		.enable_reg		= _family##_##_id##_CTRL,	\
+		.enable_mask		= ACT8865_ENA,			\
+		.owner			= THIS_MODULE,			\
+	}
+
+static const struct regulator_desc act8865_regulators[] = {
+	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1),
+	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1),
+	ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1),
+	ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET),
+	ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET),
+	ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET),
+	ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET),
 };
 
 #ifdef CONFIG_OF
 static const struct of_device_id act8865_dt_ids[] = {
-	{ .compatible = "active-semi,act8865" },
+	{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, act8865_dt_ids);
@@ -206,7 +132,9 @@ static struct of_regulator_match act8865_matches[] = {
 
 static int act8865_pdata_from_dt(struct device *dev,
 				 struct device_node **of_node,
-				 struct act8865_platform_data *pdata)
+				 struct act8865_platform_data *pdata,
+				 struct of_regulator_match *matches,
+				 int num_matches)
 {
 	int matched, i;
 	struct device_node *np;
@@ -218,26 +146,25 @@ static int act8865_pdata_from_dt(struct device *dev,
 		return -EINVAL;
 	}
 
-	matched = of_regulator_match(dev, np,
-				act8865_matches, ARRAY_SIZE(act8865_matches));
+	matched = of_regulator_match(dev, np, matches, num_matches);
 	of_node_put(np);
 	if (matched <= 0)
 		return matched;
 
 	pdata->regulators = devm_kzalloc(dev,
-				sizeof(struct act8865_regulator_data) *
-				ARRAY_SIZE(act8865_matches), GFP_KERNEL);
+					 sizeof(struct act8865_regulator_data) *
+					 num_matches, GFP_KERNEL);
 	if (!pdata->regulators)
 		return -ENOMEM;
 
-	pdata->num_regulators = ARRAY_SIZE(act8865_matches);
+	pdata->num_regulators = num_matches;
 	regulator = pdata->regulators;
 
-	for (i = 0; i < ARRAY_SIZE(act8865_matches); i++) {
+	for (i = 0; i < num_matches; i++) {
 		regulator->id = i;
-		regulator->name = act8865_matches[i].name;
-		regulator->platform_data = act8865_matches[i].init_data;
-		of_node[i] = act8865_matches[i].of_node;
+		regulator->name = matches[i].name;
+		regulator->platform_data = matches[i].init_data;
+		of_node[i] = matches[i].of_node;
 		regulator++;
 	}
 
@@ -269,35 +196,59 @@ static struct regulator_init_data
 }
 
 static int act8865_pmic_probe(struct i2c_client *client,
-			   const struct i2c_device_id *i2c_id)
+			      const struct i2c_device_id *i2c_id)
 {
-	struct regulator_dev *rdev;
+	static const struct regulator_desc *regulators;
+	struct act8865_platform_data pdata_of, *pdata;
+	struct of_regulator_match *matches;
 	struct device *dev = &client->dev;
-	struct act8865_platform_data *pdata = dev_get_platdata(dev);
-	struct regulator_config config = { };
+	int i, ret, num_regulators, error;
+	struct device_node **of_node;
 	struct act8865 *act8865;
-	struct device_node *of_node[ACT8865_REG_NUM];
-	int i;
-	int ret = -EINVAL;
-	int error;
+	unsigned long type;
+
+	pdata = dev_get_platdata(dev);
 
 	if (dev->of_node && !pdata) {
 		const struct of_device_id *id;
-		struct act8865_platform_data pdata_of;
 
 		id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
 		if (!id)
 			return -ENODEV;
 
-		ret = act8865_pdata_from_dt(dev, of_node, &pdata_of);
+		type = (unsigned long) id->data;
+	} else {
+		type = i2c_id->driver_data;
+	}
+
+	switch (type) {
+	case ACT8865:
+		matches = act8865_matches;
+		regulators = act8865_regulators;
+		num_regulators = ARRAY_SIZE(act8865_regulators);
+		break;
+	default:
+		dev_err(dev, "invalid device id %lu\n", type);
+		return -EINVAL;
+	}
+
+	of_node = devm_kzalloc(dev, sizeof(struct device_node *) *
+			       num_regulators, GFP_KERNEL);
+	if (!of_node)
+		return -ENOMEM;
+
+	if (dev->of_node && !pdata) {
+		ret = act8865_pdata_from_dt(dev, of_node, &pdata_of, matches,
+					    num_regulators);
 		if (ret < 0)
 			return ret;
 
 		pdata = &pdata_of;
 	}
 
-	if (pdata->num_regulators > ACT8865_REG_NUM) {
-		dev_err(dev, "Too many regulators found!\n");
+	if (pdata->num_regulators > num_regulators) {
+		dev_err(dev, "too many regulators: %d\n",
+			pdata->num_regulators);
 		return -EINVAL;
 	}
 
@@ -314,8 +265,10 @@ static int act8865_pmic_probe(struct i2c_client *client,
 	}
 
 	/* Finally register devices */
-	for (i = 0; i < ACT8865_REG_NUM; i++) {
-		const struct regulator_desc *desc = &act8865_reg[i];
+	for (i = 0; i < num_regulators; i++) {
+		const struct regulator_desc *desc = &regulators[i];
+		struct regulator_config config = { };
+		struct regulator_dev *rdev;
 
 		config.dev = dev;
 		config.init_data = act8865_get_init_data(desc->id, pdata);
@@ -331,12 +284,13 @@ static int act8865_pmic_probe(struct i2c_client *client,
 	}
 
 	i2c_set_clientdata(client, act8865);
+	devm_kfree(dev, of_node);
 
 	return 0;
 }
 
 static const struct i2c_device_id act8865_ids[] = {
-	{ "act8865", 0 },
+	{ .name = "act8865", .driver_data = ACT8865 },
 	{ },
 };
 MODULE_DEVICE_TABLE(i2c, act8865_ids);
@@ -352,6 +306,6 @@ static struct i2c_driver act8865_pmic_driver = {
 
 module_i2c_driver(act8865_pmic_driver);
 
-MODULE_DESCRIPTION("active-semi act8865 voltage regulator driver");
+MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
 MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
 MODULE_LICENSE("GPL v2");
diff --git a/include/linux/regulator/act8865.h b/include/linux/regulator/act8865.h
index 49206c1..b49be81 100644
--- a/include/linux/regulator/act8865.h
+++ b/include/linux/regulator/act8865.h
@@ -1,5 +1,5 @@
 /*
- * act8865.h  --  Voltage regulation for the active-semi act8865
+ * act8865.h  --  Voltage regulation for active-semi act88xx PMUs
  *
  * Copyright (C) 2013 Atmel Corporation.
  *
@@ -29,6 +29,10 @@ enum {
 	ACT8865_REG_NUM,
 };
 
+enum {
+	ACT8865,
+};
+
 /**
  * act8865_regulator_data - regulator data
  * @id: regulator id
-- 
1.7.10.4

RE: [PATCH 3/5] regulator: act8865: prepare support for other act88xx devices

[Yang, Wenyou]

> -----Original Message-----
> From: Beniamino Galvani [mailto:b.galvani@gmail.com]
> Sent: Sunday, June 22, 2014 11:32 PM
> To: Liam Girdwood; Mark Brown
> Cc: Yang, Wenyou; Rob Herring; Pawel Moll; Mark Rutland; Ian Campbell;
> Kumar Gala; Heiko Stuebner; devicetree@vger.kernel.org; linux-
> doc@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; Beniamino Galvani
> Subject: [PATCH 3/5] regulator: act8865: prepare support for other
> act88xx devices
> 
> This patch prepares support for other devices in the act88xx family of
> PMUs manufactured by Active-Semi.
> 
> http://www.active-semi.com/products/power-management-units/act88xx/
> 
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> ---
>  drivers/regulator/act8865-regulator.c |  212 +++++++++++++------------
> --------
>  include/linux/regulator/act8865.h     |    6 +-
>  2 files changed, 88 insertions(+), 130 deletions(-)
> 
> diff --git a/drivers/regulator/act8865-regulator.c
> b/drivers/regulator/act8865-regulator.c
> index b03a0e8..c604b34 100644
> --- a/drivers/regulator/act8865-regulator.c
> +++ b/drivers/regulator/act8865-regulator.c
> @@ -1,6 +1,7 @@
>  /*
> - * act8865-regulator.c - Voltage regulation for the active-semi
> ACT8865
> - * http://www.active-semi.com/sheets/ACT8865_Datasheet.pdf
> + * act8865-regulator.c - Voltage regulation for active-semi ACT88xx
> + PMUs
> + *
> + * http://www.active-semi.com/products/power-management-units/act88xx/
>   *
>   * Copyright (C) 2013 Atmel Corporation
>   *
> @@ -70,7 +71,7 @@ static const struct regmap_config
> act8865_regmap_config = {
>  	.val_bits = 8,
>  };
> 
> -static const struct regulator_linear_range act8865_volatge_ranges[] =
> {
> +static const struct regulator_linear_range act8865_voltage_ranges[] =
> {
>  	REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
>  	REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
>  	REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000), @@ -86,110
> +87,35 @@ static struct regulator_ops act8865_ops = {
>  	.is_enabled		= regulator_is_enabled_regmap,
>  };
> 
> -static const struct regulator_desc act8865_reg[] = {
> -	{
> -		.name = "DCDC_REG1",
> -		.id = ACT8865_ID_DCDC1,
> -		.ops = &act8865_ops,
> -		.type = REGULATOR_VOLTAGE,
> -		.n_voltages = ACT8865_VOLTAGE_NUM,
> -		.linear_ranges = act8865_volatge_ranges,
> -		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
> -		.vsel_reg = ACT8865_DCDC1_VSET1,
> -		.vsel_mask = ACT8865_VSEL_MASK,
> -		.enable_reg = ACT8865_DCDC1_CTRL,
> -		.enable_mask = ACT8865_ENA,
> -		.owner = THIS_MODULE,
> -	},
> -	{
> -		.name = "DCDC_REG2",
> -		.id = ACT8865_ID_DCDC2,
> -		.ops = &act8865_ops,
> -		.type = REGULATOR_VOLTAGE,
> -		.n_voltages = ACT8865_VOLTAGE_NUM,
> -		.linear_ranges = act8865_volatge_ranges,
> -		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
> -		.vsel_reg = ACT8865_DCDC2_VSET1,
> -		.vsel_mask = ACT8865_VSEL_MASK,
> -		.enable_reg = ACT8865_DCDC2_CTRL,
> -		.enable_mask = ACT8865_ENA,
> -		.owner = THIS_MODULE,
> -	},
> -	{
> -		.name = "DCDC_REG3",
> -		.id = ACT8865_ID_DCDC3,
> -		.ops = &act8865_ops,
> -		.type = REGULATOR_VOLTAGE,
> -		.n_voltages = ACT8865_VOLTAGE_NUM,
> -		.linear_ranges = act8865_volatge_ranges,
> -		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
> -		.vsel_reg = ACT8865_DCDC3_VSET1,
> -		.vsel_mask = ACT8865_VSEL_MASK,
> -		.enable_reg = ACT8865_DCDC3_CTRL,
> -		.enable_mask = ACT8865_ENA,
> -		.owner = THIS_MODULE,
> -	},
> -	{
> -		.name = "LDO_REG1",
> -		.id = ACT8865_ID_LDO1,
> -		.ops = &act8865_ops,
> -		.type = REGULATOR_VOLTAGE,
> -		.n_voltages = ACT8865_VOLTAGE_NUM,
> -		.linear_ranges = act8865_volatge_ranges,
> -		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
> -		.vsel_reg = ACT8865_LDO1_VSET,
> -		.vsel_mask = ACT8865_VSEL_MASK,
> -		.enable_reg = ACT8865_LDO1_CTRL,
> -		.enable_mask = ACT8865_ENA,
> -		.owner = THIS_MODULE,
> -	},
> -	{
> -		.name = "LDO_REG2",
> -		.id = ACT8865_ID_LDO2,
> -		.ops = &act8865_ops,
> -		.type = REGULATOR_VOLTAGE,
> -		.n_voltages = ACT8865_VOLTAGE_NUM,
> -		.linear_ranges = act8865_volatge_ranges,
> -		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
> -		.vsel_reg = ACT8865_LDO2_VSET,
> -		.vsel_mask = ACT8865_VSEL_MASK,
> -		.enable_reg = ACT8865_LDO2_CTRL,
> -		.enable_mask = ACT8865_ENA,
> -		.owner = THIS_MODULE,
> -	},
> -	{
> -		.name = "LDO_REG3",
> -		.id = ACT8865_ID_LDO3,
> -		.ops = &act8865_ops,
> -		.type = REGULATOR_VOLTAGE,
> -		.n_voltages = ACT8865_VOLTAGE_NUM,
> -		.linear_ranges = act8865_volatge_ranges,
> -		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
> -		.vsel_reg = ACT8865_LDO3_VSET,
> -		.vsel_mask = ACT8865_VSEL_MASK,
> -		.enable_reg = ACT8865_LDO3_CTRL,
> -		.enable_mask = ACT8865_ENA,
> -		.owner = THIS_MODULE,
> -	},
> -	{
> -		.name = "LDO_REG4",
> -		.id = ACT8865_ID_LDO4,
> -		.ops = &act8865_ops,
> -		.type = REGULATOR_VOLTAGE,
> -		.n_voltages = ACT8865_VOLTAGE_NUM,
> -		.linear_ranges = act8865_volatge_ranges,
> -		.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
> -		.vsel_reg = ACT8865_LDO4_VSET,
> -		.vsel_mask = ACT8865_VSEL_MASK,
> -		.enable_reg = ACT8865_LDO4_CTRL,
> -		.enable_mask = ACT8865_ENA,
> -		.owner = THIS_MODULE,
> -	},
> +#define ACT88xx_REG(_name, _family, _id, _vsel_reg)			\
> +	[_family##_ID_##_id] = {					\
> +		.name			= _name,			\
> +		.id			= _family##_ID_##_id,		\
> +		.type			= REGULATOR_VOLTAGE,		\
> +		.ops			= &act8865_ops,			\
> +		.n_voltages		= ACT8865_VOLTAGE_NUM,		\
> +		.linear_ranges		= act8865_voltage_ranges,	\
> +		.n_linear_ranges	= ARRAY_SIZE(act8865_voltage_ranges), \
> +		.vsel_reg		= _family##_##_id##_##_vsel_reg, \
> +		.vsel_mask		= ACT8865_VSEL_MASK,		\
> +		.enable_reg		= _family##_##_id##_CTRL,	\
> +		.enable_mask		= ACT8865_ENA,			\
> +		.owner			= THIS_MODULE,			\
> +	}
> +
> +static const struct regulator_desc act8865_regulators[] = {
> +	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1),
> +	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1),
> +	ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1),
> +	ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET),
> +	ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET),
> +	ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET),
> +	ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET),
>  };
> 
>  #ifdef CONFIG_OF
>  static const struct of_device_id act8865_dt_ids[] = {
> -	{ .compatible = "active-semi,act8865" },
> +	{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(of, act8865_dt_ids); @@ -206,7 +132,9 @@ static
> struct of_regulator_match act8865_matches[] = {
> 
>  static int act8865_pdata_from_dt(struct device *dev,
>  				 struct device_node **of_node,
> -				 struct act8865_platform_data *pdata)
> +				 struct act8865_platform_data *pdata,
> +				 struct of_regulator_match *matches,
> +				 int num_matches)
>  {
>  	int matched, i;
>  	struct device_node *np;
> @@ -218,26 +146,25 @@ static int act8865_pdata_from_dt(struct device
> *dev,
>  		return -EINVAL;
>  	}
> 
> -	matched = of_regulator_match(dev, np,
> -				act8865_matches, ARRAY_SIZE(act8865_matches));
> +	matched = of_regulator_match(dev, np, matches, num_matches);
>  	of_node_put(np);
>  	if (matched <= 0)
>  		return matched;
> 
>  	pdata->regulators = devm_kzalloc(dev,
> -				sizeof(struct act8865_regulator_data) *
> -				ARRAY_SIZE(act8865_matches), GFP_KERNEL);
> +					 sizeof(struct act8865_regulator_data) *
> +					 num_matches, GFP_KERNEL);
>  	if (!pdata->regulators)
>  		return -ENOMEM;
> 
> -	pdata->num_regulators = ARRAY_SIZE(act8865_matches);
> +	pdata->num_regulators = num_matches;
>  	regulator = pdata->regulators;
> 
> -	for (i = 0; i < ARRAY_SIZE(act8865_matches); i++) {
> +	for (i = 0; i < num_matches; i++) {
>  		regulator->id = i;
> -		regulator->name = act8865_matches[i].name;
> -		regulator->platform_data = act8865_matches[i].init_data;
> -		of_node[i] = act8865_matches[i].of_node;
> +		regulator->name = matches[i].name;
> +		regulator->platform_data = matches[i].init_data;
> +		of_node[i] = matches[i].of_node;
>  		regulator++;
>  	}
> 
> @@ -269,35 +196,59 @@ static struct regulator_init_data  }
> 
>  static int act8865_pmic_probe(struct i2c_client *client,
> -			   const struct i2c_device_id *i2c_id)
> +			      const struct i2c_device_id *i2c_id)
>  {
> -	struct regulator_dev *rdev;
> +	static const struct regulator_desc *regulators;
> +	struct act8865_platform_data pdata_of, *pdata;
> +	struct of_regulator_match *matches;
>  	struct device *dev = &client->dev;
> -	struct act8865_platform_data *pdata = dev_get_platdata(dev);
> -	struct regulator_config config = { };
> +	int i, ret, num_regulators, error;
> +	struct device_node **of_node;
>  	struct act8865 *act8865;
> -	struct device_node *of_node[ACT8865_REG_NUM];
> -	int i;
> -	int ret = -EINVAL;
> -	int error;
> +	unsigned long type;
> +
> +	pdata = dev_get_platdata(dev);
> 
>  	if (dev->of_node && !pdata) {
>  		const struct of_device_id *id;
> -		struct act8865_platform_data pdata_of;
> 
>  		id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
>  		if (!id)
>  			return -ENODEV;
> 
> -		ret = act8865_pdata_from_dt(dev, of_node, &pdata_of);
> +		type = (unsigned long) id->data;
> +	} else {
> +		type = i2c_id->driver_data;
> +	}
> +
> +	switch (type) {
> +	case ACT8865:
> +		matches = act8865_matches;
> +		regulators = act8865_regulators;
> +		num_regulators = ARRAY_SIZE(act8865_regulators);
> +		break;
> +	default:
> +		dev_err(dev, "invalid device id %lu\n", type);
> +		return -EINVAL;
> +	}
> +
> +	of_node = devm_kzalloc(dev, sizeof(struct device_node *) *
> +			       num_regulators, GFP_KERNEL);
> +	if (!of_node)
> +		return -ENOMEM;
> +
> +	if (dev->of_node && !pdata) {
> +		ret = act8865_pdata_from_dt(dev, of_node, &pdata_of,
> matches,
> +					    num_regulators);
>  		if (ret < 0)
>  			return ret;
> 
>  		pdata = &pdata_of;
>  	}
> 
> -	if (pdata->num_regulators > ACT8865_REG_NUM) {
> -		dev_err(dev, "Too many regulators found!\n");
> +	if (pdata->num_regulators > num_regulators) {
> +		dev_err(dev, "too many regulators: %d\n",
> +			pdata->num_regulators);
>  		return -EINVAL;
>  	}
> 
> @@ -314,8 +265,10 @@ static int act8865_pmic_probe(struct i2c_client
> *client,
>  	}
> 
>  	/* Finally register devices */
> -	for (i = 0; i < ACT8865_REG_NUM; i++) {
> -		const struct regulator_desc *desc = &act8865_reg[i];
> +	for (i = 0; i < num_regulators; i++) {
> +		const struct regulator_desc *desc = &regulators[i];
> +		struct regulator_config config = { };
> +		struct regulator_dev *rdev;
> 
>  		config.dev = dev;
>  		config.init_data = act8865_get_init_data(desc->id, pdata);
> @@ -331,12 +284,13 @@ static int act8865_pmic_probe(struct i2c_client
> *client,
>  	}
> 
>  	i2c_set_clientdata(client, act8865);
> +	devm_kfree(dev, of_node);
> 
>  	return 0;
>  }
> 
>  static const struct i2c_device_id act8865_ids[] = {
> -	{ "act8865", 0 },
> +	{ .name = "act8865", .driver_data = ACT8865 },
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(i2c, act8865_ids);
> @@ -352,6 +306,6 @@ static struct i2c_driver act8865_pmic_driver = {
> 
>  module_i2c_driver(act8865_pmic_driver);
> 
> -MODULE_DESCRIPTION("active-semi act8865 voltage regulator driver");
> +MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
>  MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
> MODULE_LICENSE("GPL v2"); diff --git
> a/include/linux/regulator/act8865.h b/include/linux/regulator/act8865.h
> index 49206c1..b49be81 100644
> --- a/include/linux/regulator/act8865.h
> +++ b/include/linux/regulator/act8865.h
> @@ -1,5 +1,5 @@
>  /*
> - * act8865.h  --  Voltage regulation for the active-semi act8865
> + * act8865.h  --  Voltage regulation for active-semi act88xx PMUs
>   *
>   * Copyright (C) 2013 Atmel Corporation.
>   *
> @@ -29,6 +29,10 @@ enum {
>  	ACT8865_REG_NUM,
>  };
> 
> +enum {
> +	ACT8865,
> +};
> +
>  /**
>   * act8865_regulator_data - regulator data
>   * @id: regulator id
> --
> 1.7.10.4

Tested on at91-sama5d3_xplained with ACT8865

Tested-by Wenyou.Yang <wenyou.yang@atmel.com>

Best Regards,
Wenyou Yang

Re: [PATCH 3/5] regulator: act8865: prepare support for other act88xx devices

[Mark Brown]

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

On Sun, Jun 22, 2014 at 05:31:43PM +0200, Beniamino Galvani wrote:
> This patch prepares support for other devices in the act88xx family of
> PMUs manufactured by Active-Semi.

This doesn't appear to apply against current code, can you please check
and resend (along with the rest of the series)?

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

[PATCH 4/5] regulator: act8865: add support for act8846

[Beniamino Galvani]

Add device id and definition of registers and regulators to support
the act8846 PMU.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
 drivers/regulator/act8865-regulator.c |   71 +++++++++++++++++++++++++++++++++
 include/linux/regulator/act8865.h     |   17 ++++++++
 2 files changed, 88 insertions(+)

diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c
index c604b34..1a693a5 100644
--- a/drivers/regulator/act8865-regulator.c
+++ b/drivers/regulator/act8865-regulator.c
@@ -29,6 +29,40 @@
 #include <linux/regmap.h>
 
 /*
+ * ACT8846 Global Register Map.
+ */
+#define	ACT8846_SYS0		0x00
+#define	ACT8846_SYS1		0x01
+#define	ACT8846_REG1_VSET	0x10
+#define	ACT8846_REG1_CTRL	0x12
+#define	ACT8846_REG2_VSET0	0x20
+#define	ACT8846_REG2_VSET1	0x21
+#define	ACT8846_REG2_CTRL	0x22
+#define	ACT8846_REG3_VSET0	0x30
+#define	ACT8846_REG3_VSET1	0x31
+#define	ACT8846_REG3_CTRL	0x32
+#define	ACT8846_REG4_VSET0	0x40
+#define	ACT8846_REG4_VSET1	0x41
+#define	ACT8846_REG4_CTRL	0x42
+#define	ACT8846_REG5_VSET	0x50
+#define	ACT8846_REG5_CTRL	0x51
+#define	ACT8846_REG6_VSET	0x58
+#define	ACT8846_REG6_CTRL	0x59
+#define	ACT8846_REG7_VSET	0x60
+#define	ACT8846_REG7_CTRL	0x61
+#define	ACT8846_REG8_VSET	0x68
+#define	ACT8846_REG8_CTRL	0x69
+#define	ACT8846_REG9_VSET	0x70
+#define	ACT8846_REG9_CTRL	0x71
+#define	ACT8846_REG10_VSET	0x80
+#define	ACT8846_REG10_CTRL	0x81
+#define	ACT8846_REG11_VSET	0x90
+#define	ACT8846_REG11_CTRL	0x91
+#define	ACT8846_REG12_VSET	0xa0
+#define	ACT8846_REG12_CTRL	0xa1
+#define	ACT8846_REG13_CTRL	0xb1
+
+/*
  * ACT8865 Global Register Map.
  */
 #define	ACT8865_SYS_MODE	0x00
@@ -103,6 +137,21 @@ static struct regulator_ops act8865_ops = {
 		.owner			= THIS_MODULE,			\
 	}
 
+static const struct regulator_desc act8846_regulators[] = {
+	ACT88xx_REG("REG1", ACT8846, REG1, VSET),
+	ACT88xx_REG("REG2", ACT8846, REG2, VSET0),
+	ACT88xx_REG("REG3", ACT8846, REG3, VSET0),
+	ACT88xx_REG("REG4", ACT8846, REG4, VSET0),
+	ACT88xx_REG("REG5", ACT8846, REG5, VSET),
+	ACT88xx_REG("REG6", ACT8846, REG6, VSET),
+	ACT88xx_REG("REG7", ACT8846, REG7, VSET),
+	ACT88xx_REG("REG8", ACT8846, REG8, VSET),
+	ACT88xx_REG("REG9", ACT8846, REG9, VSET),
+	ACT88xx_REG("REG10", ACT8846, REG10, VSET),
+	ACT88xx_REG("REG11", ACT8846, REG11, VSET),
+	ACT88xx_REG("REG12", ACT8846, REG12, VSET),
+};
+
 static const struct regulator_desc act8865_regulators[] = {
 	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1),
 	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1),
@@ -115,11 +164,27 @@ static const struct regulator_desc act8865_regulators[] = {
 
 #ifdef CONFIG_OF
 static const struct of_device_id act8865_dt_ids[] = {
+	{ .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
 	{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, act8865_dt_ids);
 
+static struct of_regulator_match act8846_matches[] = {
+	[ACT8846_ID_REG1]	= { .name = "REG1" },
+	[ACT8846_ID_REG2]	= { .name = "REG2" },
+	[ACT8846_ID_REG3]	= { .name = "REG3" },
+	[ACT8846_ID_REG4]	= { .name = "REG4" },
+	[ACT8846_ID_REG5]	= { .name = "REG5" },
+	[ACT8846_ID_REG6]	= { .name = "REG6" },
+	[ACT8846_ID_REG7]	= { .name = "REG7" },
+	[ACT8846_ID_REG8]	= { .name = "REG8" },
+	[ACT8846_ID_REG9]	= { .name = "REG9" },
+	[ACT8846_ID_REG10]	= { .name = "REG10" },
+	[ACT8846_ID_REG11]	= { .name = "REG11" },
+	[ACT8846_ID_REG12]	= { .name = "REG12" },
+};
+
 static struct of_regulator_match act8865_matches[] = {
 	[ACT8865_ID_DCDC1]	= { .name = "DCDC_REG1"},
 	[ACT8865_ID_DCDC2]	= { .name = "DCDC_REG2"},
@@ -222,6 +287,11 @@ static int act8865_pmic_probe(struct i2c_client *client,
 	}
 
 	switch (type) {
+	case ACT8846:
+		matches = act8846_matches;
+		regulators = act8846_regulators;
+		num_regulators = ARRAY_SIZE(act8846_regulators);
+		break;
 	case ACT8865:
 		matches = act8865_matches;
 		regulators = act8865_regulators;
@@ -290,6 +360,7 @@ static int act8865_pmic_probe(struct i2c_client *client,
 }
 
 static const struct i2c_device_id act8865_ids[] = {
+	{ .name = "act8846", .driver_data = ACT8846 },
 	{ .name = "act8865", .driver_data = ACT8865 },
 	{ },
 };
diff --git a/include/linux/regulator/act8865.h b/include/linux/regulator/act8865.h
index b49be81..b6c4909 100644
--- a/include/linux/regulator/act8865.h
+++ b/include/linux/regulator/act8865.h
@@ -30,7 +30,24 @@ enum {
 };
 
 enum {
+	ACT8846_ID_REG1,
+	ACT8846_ID_REG2,
+	ACT8846_ID_REG3,
+	ACT8846_ID_REG4,
+	ACT8846_ID_REG5,
+	ACT8846_ID_REG6,
+	ACT8846_ID_REG7,
+	ACT8846_ID_REG8,
+	ACT8846_ID_REG9,
+	ACT8846_ID_REG10,
+	ACT8846_ID_REG11,
+	ACT8846_ID_REG12,
+	ACT8846_REG_NUM,
+};
+
+enum {
 	ACT8865,
+	ACT8846,
 };
 
 /**
-- 
1.7.10.4

RE: [PATCH 4/5] regulator: act8865: add support for act8846

[Yang, Wenyou]

> -----Original Message-----
> From: Beniamino Galvani [mailto:b.galvani@gmail.com]
> Sent: Sunday, June 22, 2014 11:32 PM
> To: Liam Girdwood; Mark Brown
> Cc: Yang, Wenyou; Rob Herring; Pawel Moll; Mark Rutland; Ian Campbell;
> Kumar Gala; Heiko Stuebner; devicetree@vger.kernel.org; linux-
> doc@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; Beniamino Galvani
> Subject: [PATCH 4/5] regulator: act8865: add support for act8846
> 
> Add device id and definition of registers and regulators to support the
> act8846 PMU.
> 
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> ---
>  drivers/regulator/act8865-regulator.c |   71
> +++++++++++++++++++++++++++++++++
>  include/linux/regulator/act8865.h     |   17 ++++++++
>  2 files changed, 88 insertions(+)
> 
> diff --git a/drivers/regulator/act8865-regulator.c
> b/drivers/regulator/act8865-regulator.c
> index c604b34..1a693a5 100644
> --- a/drivers/regulator/act8865-regulator.c
> +++ b/drivers/regulator/act8865-regulator.c
> @@ -29,6 +29,40 @@
>  #include <linux/regmap.h>
> 
>  /*
> + * ACT8846 Global Register Map.
> + */
> +#define	ACT8846_SYS0		0x00
> +#define	ACT8846_SYS1		0x01
> +#define	ACT8846_REG1_VSET	0x10
> +#define	ACT8846_REG1_CTRL	0x12
> +#define	ACT8846_REG2_VSET0	0x20
> +#define	ACT8846_REG2_VSET1	0x21
> +#define	ACT8846_REG2_CTRL	0x22
> +#define	ACT8846_REG3_VSET0	0x30
> +#define	ACT8846_REG3_VSET1	0x31
> +#define	ACT8846_REG3_CTRL	0x32
> +#define	ACT8846_REG4_VSET0	0x40
> +#define	ACT8846_REG4_VSET1	0x41
> +#define	ACT8846_REG4_CTRL	0x42
> +#define	ACT8846_REG5_VSET	0x50
> +#define	ACT8846_REG5_CTRL	0x51
> +#define	ACT8846_REG6_VSET	0x58
> +#define	ACT8846_REG6_CTRL	0x59
> +#define	ACT8846_REG7_VSET	0x60
> +#define	ACT8846_REG7_CTRL	0x61
> +#define	ACT8846_REG8_VSET	0x68
> +#define	ACT8846_REG8_CTRL	0x69
> +#define	ACT8846_REG9_VSET	0x70
> +#define	ACT8846_REG9_CTRL	0x71
> +#define	ACT8846_REG10_VSET	0x80
> +#define	ACT8846_REG10_CTRL	0x81
> +#define	ACT8846_REG11_VSET	0x90
> +#define	ACT8846_REG11_CTRL	0x91
> +#define	ACT8846_REG12_VSET	0xa0
> +#define	ACT8846_REG12_CTRL	0xa1
> +#define	ACT8846_REG13_CTRL	0xb1
> +
> +/*
>   * ACT8865 Global Register Map.
>   */
>  #define	ACT8865_SYS_MODE	0x00
> @@ -103,6 +137,21 @@ static struct regulator_ops act8865_ops = {
>  		.owner			= THIS_MODULE,			\
>  	}
> 
> +static const struct regulator_desc act8846_regulators[] = {
> +	ACT88xx_REG("REG1", ACT8846, REG1, VSET),
> +	ACT88xx_REG("REG2", ACT8846, REG2, VSET0),
> +	ACT88xx_REG("REG3", ACT8846, REG3, VSET0),
> +	ACT88xx_REG("REG4", ACT8846, REG4, VSET0),
> +	ACT88xx_REG("REG5", ACT8846, REG5, VSET),
> +	ACT88xx_REG("REG6", ACT8846, REG6, VSET),
> +	ACT88xx_REG("REG7", ACT8846, REG7, VSET),
> +	ACT88xx_REG("REG8", ACT8846, REG8, VSET),
> +	ACT88xx_REG("REG9", ACT8846, REG9, VSET),
> +	ACT88xx_REG("REG10", ACT8846, REG10, VSET),
> +	ACT88xx_REG("REG11", ACT8846, REG11, VSET),
> +	ACT88xx_REG("REG12", ACT8846, REG12, VSET), };
> +
>  static const struct regulator_desc act8865_regulators[] = {
>  	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1),
>  	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1), @@ -115,11
> +164,27 @@ static const struct regulator_desc act8865_regulators[] = {
> 
>  #ifdef CONFIG_OF
>  static const struct of_device_id act8865_dt_ids[] = {
> +	{ .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
>  	{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(of, act8865_dt_ids);
> 
> +static struct of_regulator_match act8846_matches[] = {
> +	[ACT8846_ID_REG1]	= { .name = "REG1" },
> +	[ACT8846_ID_REG2]	= { .name = "REG2" },
> +	[ACT8846_ID_REG3]	= { .name = "REG3" },
> +	[ACT8846_ID_REG4]	= { .name = "REG4" },
> +	[ACT8846_ID_REG5]	= { .name = "REG5" },
> +	[ACT8846_ID_REG6]	= { .name = "REG6" },
> +	[ACT8846_ID_REG7]	= { .name = "REG7" },
> +	[ACT8846_ID_REG8]	= { .name = "REG8" },
> +	[ACT8846_ID_REG9]	= { .name = "REG9" },
> +	[ACT8846_ID_REG10]	= { .name = "REG10" },
> +	[ACT8846_ID_REG11]	= { .name = "REG11" },
> +	[ACT8846_ID_REG12]	= { .name = "REG12" },
> +};
> +
>  static struct of_regulator_match act8865_matches[] = {
>  	[ACT8865_ID_DCDC1]	= { .name = "DCDC_REG1"},
>  	[ACT8865_ID_DCDC2]	= { .name = "DCDC_REG2"},
> @@ -222,6 +287,11 @@ static int act8865_pmic_probe(struct i2c_client
> *client,
>  	}
> 
>  	switch (type) {
> +	case ACT8846:
> +		matches = act8846_matches;
> +		regulators = act8846_regulators;
> +		num_regulators = ARRAY_SIZE(act8846_regulators);
> +		break;
>  	case ACT8865:
>  		matches = act8865_matches;
>  		regulators = act8865_regulators;
> @@ -290,6 +360,7 @@ static int act8865_pmic_probe(struct i2c_client
> *client,  }
> 
>  static const struct i2c_device_id act8865_ids[] = {
> +	{ .name = "act8846", .driver_data = ACT8846 },
>  	{ .name = "act8865", .driver_data = ACT8865 },
>  	{ },
>  };
> diff --git a/include/linux/regulator/act8865.h
> b/include/linux/regulator/act8865.h
> index b49be81..b6c4909 100644
> --- a/include/linux/regulator/act8865.h
> +++ b/include/linux/regulator/act8865.h
> @@ -30,7 +30,24 @@ enum {
>  };
> 
>  enum {
> +	ACT8846_ID_REG1,
> +	ACT8846_ID_REG2,
> +	ACT8846_ID_REG3,
> +	ACT8846_ID_REG4,
> +	ACT8846_ID_REG5,
> +	ACT8846_ID_REG6,
> +	ACT8846_ID_REG7,
> +	ACT8846_ID_REG8,
> +	ACT8846_ID_REG9,
> +	ACT8846_ID_REG10,
> +	ACT8846_ID_REG11,
> +	ACT8846_ID_REG12,
> +	ACT8846_REG_NUM,
> +};
> +
> +enum {
>  	ACT8865,
> +	ACT8846,
>  };
> 
>  /**
> --
> 1.7.10.4


Tested on at91-sama5d3_xplained with ACT8865

Tested-by Wenyou.Yang <wenyou.yang@atmel.com>

Best Regards,
Wenyou Yang

[PATCH 5/5] regulator: act8865: add act8846 to DT binding documentation

[Beniamino Galvani]

This patch adds a new "active-semi,act8846" compatible string and a
list of supported regulator names to the devicetree binding
documentation for Active-Semi PMUs.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
 .../devicetree/bindings/regulator/act8865-regulator.txt         |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt b/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
index bef1fbb..865614b 100644
--- a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
@@ -1,13 +1,16 @@
-ACT8865 regulator
+ACT88xx regulators
 -------------------
 
 Required properties:
-- compatible: "active-semi,act8865"
+- compatible: "active-semi,act8846" or "active-semi,act8865"
 - reg: I2C slave address
 
 Any standard regulator properties can be used to configure the single regulator.
 
 The valid names for regulators are:
+	- for act8846:
+	REG1, REG2, REG3, REG4, REG5, REG6, REG7, REG8, REG9, REG10, REG11, REG12
+	- for act8865:
 	DCDC_REG1, DCDC_REG2, DCDC_REG3, LDO_REG1, LDO_REG2, LDO_REG3, LDO_REG4.
 
 Example:
-- 
1.7.10.4