diff mbox series

[v3,09/11] regulator: tps6594-regulator: Add TI TPS65224 PMIC regulators

Message ID 20240308103455.242705-10-bhargav.r@ltts.com
State New
Headers show
Series Add support for TI TPS65224 PMIC | expand

Commit Message

Bhargav Raviprakash March 8, 2024, 10:34 a.m. UTC 
From: Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>

Add support for TPS65224 regulators (bucks and LDOs) to TPS6594 driver as
they have significant functional overlap. TPS65224 PMIC has 4 buck
regulators and 3 LDOs. BUCK12 can operate in dual phase.
The output voltages are configurable and are meant to supply power to the
main processor and other components.

Signed-off-by: Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>
Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com>
---
 drivers/regulator/Kconfig             |   4 +-
 drivers/regulator/tps6594-regulator.c | 236 +++++++++++++++++++++++---
 2 files changed, 215 insertions(+), 25 deletions(-)

Comments

Esteban Blanc March 14, 2024, 11:28 a.m. UTC | #1 
On Fri Mar 8, 2024 at 11:34 AM CET, Bhargav Raviprakash wrote:
> From: Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>
>
> Add support for TPS65224 regulators (bucks and LDOs) to TPS6594 driver as
> they have significant functional overlap. TPS65224 PMIC has 4 buck
> regulators and 3 LDOs. BUCK12 can operate in dual phase.
> The output voltages are configurable and are meant to supply power to the
> main processor and other components.
>
> Signed-off-by: Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>
> Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com>
> ---
>  drivers/regulator/Kconfig             |   4 +-
>  drivers/regulator/tps6594-regulator.c | 236 +++++++++++++++++++++++---
>  2 files changed, 215 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/regulator/tps6594-regulator.c b/drivers/regulator/tps6594-regulator.c
> index b7f0c8779..37d76c483 100644
> --- a/drivers/regulator/tps6594-regulator.c
> +++ b/drivers/regulator/tps6594-regulator.c
> @@ -412,14 +562,20 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
>  	struct tps6594_ext_regulator_irq_data *irq_ext_reg_data;
>  	struct tps6594_regulator_irq_type *irq_type;
>  	u8 buck_configured[BUCK_NB] = { 0 };
> +	u8 ldo_configured[LDO_NB] = { 0 };
>  	u8 buck_multi[MULTI_PHASE_NB] = { 0 };
>  	static const char * const multiphases[] = {"buck12", "buck123", "buck1234", "buck34"};

`multiphases` should prefixed like the new one.

> +	static const char * const tps65224_multiphases[] = {"buck12"};

> @@ -495,25 +660,30 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
>  	if (!irq_data)
>  		return -ENOMEM;
>  
> -	for (i = 0; i < MULTI_PHASE_NB; i++) {
> +	for (i = 0; i < multi_phase_cnt; i++) {
>  		if (buck_multi[i] == 0)
>  			continue;
>  
> +		const struct regulator_desc *multi_regs = (tps->chip_id == TPS65224) ?
> +							   tps65224_multi_regs :
> +							   tps6594_multi_regs;

This should be declared at the top of the function.

>  		rdev = devm_regulator_register(&pdev->dev, &multi_regs[i], &config);
> -		if (IS_ERR(rdev))
> -			return dev_err_probe(tps->dev, PTR_ERR(rdev),
> -					     "failed to register %s regulator\n",
> -					     pdev->name);
> +			if (IS_ERR(rdev))
> +				return dev_err_probe(tps->dev, PTR_ERR(rdev),
> +						     "failed to register %s regulator\n",
> +						     pdev->name);

The indentation of the `if` looks odd. You should revert this.

> @@ -537,21 +707,34 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
>  		if (buck_configured[i] == 1)
>  			continue;
>  
> -		rdev = devm_regulator_register(&pdev->dev, &buck_regs[i], &config);
> +		const struct regulator_desc *buck_cfg = (tps->chip_id == TPS65224) ?
> +							 tps65224_buck_regs : buck_regs;

Same here, should be at the top of the function.

> -	/* LP8764 dosen't have LDO */
> +	/* LP8764 doesn't have LDO */
>  	if (tps->chip_id != LP8764) {
> -		for (i = 0; i < ARRAY_SIZE(ldo_regs); i++) {
> +		for (i = 0; i < LDO_NB; i++) {
> +			if (ldo_configured[i] == 1)
> +				continue;
> +
> +			struct tps6594_regulator_irq_type **ldos_irq_types =
> +						(tps->chip_id == TPS65224) ?
> +						tps65224_ldos_irq_types : tps6594_ldos_irq_types;
> +
> +			const struct regulator_desc *ldo_regs =
> +						(tps->chip_id == TPS65224) ?
> +						tps65224_ldo_regs : tps6594_ldo_regs;

Should be at the top of the function, please fix this in the whole file.

Best regards,
Dan Carpenter March 14, 2024, 1:30 p.m. UTC | #2 
On Fri, Mar 08, 2024 at 04:04:53PM +0530, Bhargav Raviprakash wrote:
> @@ -374,11 +518,17 @@ static int tps6594_request_reg_irqs(struct platform_device *pdev,
>  {
>  	struct tps6594_regulator_irq_type *irq_type;
>  	struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
> -	int j;
> +	size_t j;
>  	int irq;
>  	int error;
> +	size_t interrupt_cnt;
> +
> +	if (tps->chip_id == TPS6594)
> +		interrupt_cnt = ARRAY_SIZE(tps6594_buck1_irq_types);
> +	else
> +		interrupt_cnt = ARRAY_SIZE(tps65224_buck1_irq_types);
                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

>  
> -	for (j = 0; j < REGS_INT_NB; j++) {
> +	for (j = 0; j < interrupt_cnt; j++) {
>  		irq_type = &tps6594_regs_irq_types[j];
                            ^^^^^^^^^^^^^^^^^^^^^^
>  		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
>  		if (irq < 0)

The tps6594_regs_irq_types pointer needs to be renamed or people won't
know it's holding tps65224_ data.  Probably the function should be
renamed too.

regards,
dan carpenter
Bhargav Raviprakash March 20, 2024, 10:15 a.m. UTC | #3 
Hello,

On Thu, 14 Mar 2024 12:28:00 +0100, Esteban Blanc wrote:
> On Fri Mar 8, 2024 at 11:34 AM CET, Bhargav Raviprakash wrote:
> > From: Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>
> >
> > Add support for TPS65224 regulators (bucks and LDOs) to TPS6594 driver as
> > they have significant functional overlap. TPS65224 PMIC has 4 buck
> > regulators and 3 LDOs. BUCK12 can operate in dual phase.
> > The output voltages are configurable and are meant to supply power to the
> > main processor and other components.
> >
> > Signed-off-by: Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>
> > Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com>
> > ---
> >  drivers/regulator/Kconfig             |   4 +-
> >  drivers/regulator/tps6594-regulator.c | 236 +++++++++++++++++++++++---
> >  2 files changed, 215 insertions(+), 25 deletions(-)
> >
> > diff --git a/drivers/regulator/tps6594-regulator.c b/drivers/regulator/tps6594-regulator.c
> > index b7f0c8779..37d76c483 100644
> > --- a/drivers/regulator/tps6594-regulator.c
> > +++ b/drivers/regulator/tps6594-regulator.c
> > @@ -412,14 +562,20 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
> >  	struct tps6594_ext_regulator_irq_data *irq_ext_reg_data;
> >  	struct tps6594_regulator_irq_type *irq_type;
> >  	u8 buck_configured[BUCK_NB] = { 0 };
> > +	u8 ldo_configured[LDO_NB] = { 0 };
> >  	u8 buck_multi[MULTI_PHASE_NB] = { 0 };
> >  	static const char * const multiphases[] = {"buck12", "buck123", "buck1234", "buck34"};
> 
> `multiphases` should prefixed like the new one.
> 

Sure! This will be fixed in the next version.

> > +	static const char * const tps65224_multiphases[] = {"buck12"};
> 
> > @@ -495,25 +660,30 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
> >  	if (!irq_data)
> >  		return -ENOMEM;
> >  
> > -	for (i = 0; i < MULTI_PHASE_NB; i++) {
> > +	for (i = 0; i < multi_phase_cnt; i++) {
> >  		if (buck_multi[i] == 0)
> >  			continue;
> >  
> > +		const struct regulator_desc *multi_regs = (tps->chip_id == TPS65224) ?
> > +							   tps65224_multi_regs :
> > +							   tps6594_multi_regs;
> 
> This should be declared at the top of the function.
> 
> >  		rdev = devm_regulator_register(&pdev->dev, &multi_regs[i], &config);
> > -		if (IS_ERR(rdev))
> > -			return dev_err_probe(tps->dev, PTR_ERR(rdev),
> > -					     "failed to register %s regulator\n",
> > -					     pdev->name);
> > +			if (IS_ERR(rdev))
> > +				return dev_err_probe(tps->dev, PTR_ERR(rdev),
> > +						     "failed to register %s regulator\n",
> > +						     pdev->name);
> 
> The indentation of the `if` looks odd. You should revert this.
> 

Sure, will fix this in the next version.

> > @@ -537,21 +707,34 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
> >  		if (buck_configured[i] == 1)
> >  			continue;
> >  
> > -		rdev = devm_regulator_register(&pdev->dev, &buck_regs[i], &config);
> > +		const struct regulator_desc *buck_cfg = (tps->chip_id == TPS65224) ?
> > +							 tps65224_buck_regs : buck_regs;
> 
> Same here, should be at the top of the function.
> 
> > -	/* LP8764 dosen't have LDO */
> > +	/* LP8764 doesn't have LDO */
> >  	if (tps->chip_id != LP8764) {
> > -		for (i = 0; i < ARRAY_SIZE(ldo_regs); i++) {
> > +		for (i = 0; i < LDO_NB; i++) {
> > +			if (ldo_configured[i] == 1)
> > +				continue;
> > +
> > +			struct tps6594_regulator_irq_type **ldos_irq_types =
> > +						(tps->chip_id == TPS65224) ?
> > +						tps65224_ldos_irq_types : tps6594_ldos_irq_types;
> > +
> > +			const struct regulator_desc *ldo_regs =
> > +						(tps->chip_id == TPS65224) ?
> > +						tps65224_ldo_regs : tps6594_ldo_regs;
> 
> Should be at the top of the function, please fix this in the whole file.

Thanks! In the next version will move declaration to start of the function.

> 
> Best regards,
> 
> -- 
> Esteban "Skallwar" Blanc
> BayLibre

Regards,
Bhargav
Bhargav Raviprakash March 20, 2024, 10:17 a.m. UTC | #4 
Hello,

On Thu, 14 Mar 2024 16:30:09 +0300, Dan Carpenter wrote:
> On Fri, Mar 08, 2024 at 04:04:53PM +0530, Bhargav Raviprakash wrote:
> > @@ -374,11 +518,17 @@ static int tps6594_request_reg_irqs(struct platform_device *pdev,
> >  {
> >  	struct tps6594_regulator_irq_type *irq_type;
> >  	struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
> > -	int j;
> > +	size_t j;
> >  	int irq;
> >  	int error;
> > +	size_t interrupt_cnt;
> > +
> > +	if (tps->chip_id == TPS6594)
> > +		interrupt_cnt = ARRAY_SIZE(tps6594_buck1_irq_types);
> > +	else
> > +		interrupt_cnt = ARRAY_SIZE(tps65224_buck1_irq_types);
>                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> >  
> > -	for (j = 0; j < REGS_INT_NB; j++) {
> > +	for (j = 0; j < interrupt_cnt; j++) {
> >  		irq_type = &tps6594_regs_irq_types[j];
>                             ^^^^^^^^^^^^^^^^^^^^^^
> >  		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
> >  		if (irq < 0)
> 
> The tps6594_regs_irq_types pointer needs to be renamed or people won't
> know it's holding tps65224_ data.  Probably the function should be
> renamed too.
> 
> regards,
> dan carpenter

Thanks for the feedback! The name will be changed in the next version.

Regards,
Bhargav
diff mbox series

Patch

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 7db0a29b5..1e4119f00 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -1563,13 +1563,15 @@  config REGULATOR_TPS6594
 	depends on MFD_TPS6594 && OF
 	default MFD_TPS6594
 	help
-	  This driver supports TPS6594 voltage regulator chips.
+	  This driver supports TPS6594 series and TPS65224 voltage regulator chips.
 	  TPS6594 series of PMICs have 5 BUCKs and 4 LDOs
 	  voltage regulators.
 	  BUCKs 1,2,3,4 can be used in single phase or multiphase mode.
 	  Part number defines which single or multiphase mode is i used.
 	  It supports software based voltage control
 	  for different voltage domains.
+	  TPS65224 PMIC has 4 BUCKs and 3 LDOs. BUCK12 can be used in dual phase.
+	  All BUCKs and LDOs volatge can be controlled through software.
 
 config REGULATOR_TPS6524X
 	tristate "TI TPS6524X Power regulators"
diff --git a/drivers/regulator/tps6594-regulator.c b/drivers/regulator/tps6594-regulator.c
index b7f0c8779..37d76c483 100644
--- a/drivers/regulator/tps6594-regulator.c
+++ b/drivers/regulator/tps6594-regulator.c
@@ -66,6 +66,15 @@  static struct tps6594_regulator_irq_type tps6594_ext_regulator_irq_types[] = {
 	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 };
 
+static struct tps6594_regulator_irq_type tps65224_ext_regulator_irq_types[] = {
+	{ TPS65224_IRQ_NAME_VCCA_UVOV, "VCCA", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS65224_IRQ_NAME_VMON1_UVOV, "VMON1", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS65224_IRQ_NAME_VMON2_UVOV, "VMON2", "voltage out of range",
+	  REGULATOR_EVENT_REGULATION_OUT },
+};
+
 struct tps6594_regulator_irq_data {
 	struct device *dev;
 	struct tps6594_regulator_irq_type *type;
@@ -122,6 +131,27 @@  static const struct linear_range ldos_4_ranges[] = {
 	REGULATOR_LINEAR_RANGE(1200000, 0x20, 0x74, 25000),
 };
 
+/* Voltage range for TPS65224 Bucks and LDOs */
+static const struct linear_range tps65224_bucks_1_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x0a, 0x0e, 20000),
+	REGULATOR_LINEAR_RANGE(600000, 0x0f, 0x72, 5000),
+	REGULATOR_LINEAR_RANGE(1100000, 0x73, 0xaa, 10000),
+	REGULATOR_LINEAR_RANGE(1660000, 0xab, 0xfd, 20000),
+};
+
+static const struct linear_range tps65224_bucks_2_3_4_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x1a, 25000),
+	REGULATOR_LINEAR_RANGE(1200000, 0x1b, 0x45, 50000),
+};
+
+static const struct linear_range tps65224_ldos_1_ranges[] = {
+	REGULATOR_LINEAR_RANGE(1200000, 0xC, 0x36, 50000),
+};
+
+static const struct linear_range tps65224_ldos_2_3_ranges[] = {
+	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x38, 50000),
+};
+
 /* Operations permitted on BUCK1/2/3/4/5 */
 static const struct regulator_ops tps6594_bucks_ops = {
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -197,6 +227,38 @@  static const struct regulator_desc buck_regs[] = {
 			  4, 0, 0, NULL, 0, 0),
 };
 
+/* Buck configuration for TPS65224 */
+static const struct regulator_desc tps65224_buck_regs[] = {
+	TPS6594_REGULATOR("BUCK1", "buck1", TPS6594_BUCK_1,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCK1_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(0),
+			  TPS65224_MASK_BUCK1_VSET,
+			  TPS6594_REG_BUCKX_CTRL(0),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_1_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK2", "buck2", TPS6594_BUCK_2,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(1),
+			  TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(1),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK3", "buck3", TPS6594_BUCK_3,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(2),
+			  TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(2),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK4", "buck4", TPS6594_BUCK_4,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(3),
+			  TPS65224_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(3),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
+			  4, 0, 0, NULL, 0, 0),
+};
+
 static struct tps6594_regulator_irq_type tps6594_buck1_irq_types[] = {
 	{ TPS6594_IRQ_NAME_BUCK1_OV, "BUCK1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_BUCK1_UV, "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
@@ -269,6 +331,41 @@  static struct tps6594_regulator_irq_type tps6594_ldo4_irq_types[] = {
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
+static struct tps6594_regulator_irq_type tps65224_buck1_irq_types[] = {
+	{ TPS65224_IRQ_NAME_BUCK1_UVOV, "BUCK1", "voltage out of range",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+};
+
+static struct tps6594_regulator_irq_type tps65224_buck2_irq_types[] = {
+	{ TPS65224_IRQ_NAME_BUCK2_UVOV, "BUCK2", "voltage out of range",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+};
+
+static struct tps6594_regulator_irq_type tps65224_buck3_irq_types[] = {
+	{ TPS65224_IRQ_NAME_BUCK3_UVOV, "BUCK3", "voltage out of range",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+};
+
+static struct tps6594_regulator_irq_type tps65224_buck4_irq_types[] = {
+	{ TPS65224_IRQ_NAME_BUCK4_UVOV, "BUCK4", "voltage out of range",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+};
+
+static struct tps6594_regulator_irq_type tps65224_ldo1_irq_types[] = {
+	{ TPS65224_IRQ_NAME_LDO1_UVOV, "LDO1", "voltage out of range",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+};
+
+static struct tps6594_regulator_irq_type tps65224_ldo2_irq_types[] = {
+	{ TPS65224_IRQ_NAME_LDO2_UVOV, "LDO2", "voltage out of range",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+};
+
+static struct tps6594_regulator_irq_type tps65224_ldo3_irq_types[] = {
+	{ TPS65224_IRQ_NAME_LDO3_UVOV, "LDO3", "voltage out of range",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+};
+
 static struct tps6594_regulator_irq_type *tps6594_bucks_irq_types[] = {
 	tps6594_buck1_irq_types,
 	tps6594_buck2_irq_types,
@@ -284,7 +381,20 @@  static struct tps6594_regulator_irq_type *tps6594_ldos_irq_types[] = {
 	tps6594_ldo4_irq_types,
 };
 
-static const struct regulator_desc multi_regs[] = {
+static struct tps6594_regulator_irq_type *tps65224_bucks_irq_types[] = {
+	tps65224_buck1_irq_types,
+	tps65224_buck2_irq_types,
+	tps65224_buck3_irq_types,
+	tps65224_buck4_irq_types,
+};
+
+static struct tps6594_regulator_irq_type *tps65224_ldos_irq_types[] = {
+	tps65224_ldo1_irq_types,
+	tps65224_ldo2_irq_types,
+	tps65224_ldo3_irq_types,
+};
+
+static const struct regulator_desc tps6594_multi_regs[] = {
 	TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,
 			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
 			  TPS6594_REG_BUCKX_VOUT_1(1),
@@ -315,7 +425,17 @@  static const struct regulator_desc multi_regs[] = {
 			  4, 4000, 0, NULL, 0, 0),
 };
 
-static const struct regulator_desc ldo_regs[] = {
+static const struct regulator_desc tps65224_multi_regs[] = {
+	TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCK1_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(0),
+			  TPS65224_MASK_BUCK1_VSET,
+			  TPS6594_REG_BUCKX_CTRL(0),
+			  TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_1_ranges,
+			  4, 4000, 0, NULL, 0, 0),
+};
+
+static const struct regulator_desc tps6594_ldo_regs[] = {
 	TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,
 			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
 			  TPS6594_REG_LDOX_VOUT(0),
@@ -346,6 +466,30 @@  static const struct regulator_desc ldo_regs[] = {
 			  1, 0, 0, NULL, 0, 0),
 };
 
+static const struct regulator_desc tps65224_ldo_regs[] = {
+	TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(0),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(0),
+			  TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_1_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+	TPS6594_REGULATOR("LDO2", "ldo2", TPS6594_LDO_2,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(1),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(1),
+			  TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_2_3_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+	TPS6594_REGULATOR("LDO3", "ldo3", TPS6594_LDO_3,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(2),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(2),
+			  TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_2_3_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+};
+
 static irqreturn_t tps6594_regulator_irq_handler(int irq, void *data)
 {
 	struct tps6594_regulator_irq_data *irq_data = data;
@@ -374,11 +518,17 @@  static int tps6594_request_reg_irqs(struct platform_device *pdev,
 {
 	struct tps6594_regulator_irq_type *irq_type;
 	struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
-	int j;
+	size_t j;
 	int irq;
 	int error;
+	size_t interrupt_cnt;
+
+	if (tps->chip_id == TPS6594)
+		interrupt_cnt = ARRAY_SIZE(tps6594_buck1_irq_types);
+	else
+		interrupt_cnt = ARRAY_SIZE(tps65224_buck1_irq_types);
 
-	for (j = 0; j < REGS_INT_NB; j++) {
+	for (j = 0; j < interrupt_cnt; j++) {
 		irq_type = &tps6594_regs_irq_types[j];
 		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
 		if (irq < 0)
@@ -412,14 +562,20 @@  static int tps6594_regulator_probe(struct platform_device *pdev)
 	struct tps6594_ext_regulator_irq_data *irq_ext_reg_data;
 	struct tps6594_regulator_irq_type *irq_type;
 	u8 buck_configured[BUCK_NB] = { 0 };
+	u8 ldo_configured[LDO_NB] = { 0 };
 	u8 buck_multi[MULTI_PHASE_NB] = { 0 };
 	static const char * const multiphases[] = {"buck12", "buck123", "buck1234", "buck34"};
+	static const char * const tps65224_multiphases[] = {"buck12"};
 	static const char *npname;
 	int error, i, irq, multi, delta;
 	int irq_idx = 0;
 	int buck_idx = 0;
+	unsigned int multi_phase_cnt = 0;
 	size_t ext_reg_irq_nb = 2;
 	size_t reg_irq_nb;
+	struct tps6594_regulator_irq_type **bucks_irq_types = (tps->chip_id == TPS65224) ?
+							       tps65224_bucks_irq_types :
+							       tps6594_bucks_irq_types;
 	enum {
 		MULTI_BUCK12,
 		MULTI_BUCK123,
@@ -434,6 +590,10 @@  static int tps6594_regulator_probe(struct platform_device *pdev)
 	config.driver_data = tps;
 	config.regmap = tps->regmap;
 
+	multi_phase_cnt = (tps->chip_id == TPS65224) ?
+			   ARRAY_SIZE(tps65224_multiphases) :
+			   ARRAY_SIZE(multiphases);
+
 	/*
 	 * Switch case defines different possible multi phase config
 	 * This is based on dts buck node name.
@@ -442,7 +602,7 @@  static int tps6594_regulator_probe(struct platform_device *pdev)
 	 * In case of Multiphase configuration, value should be defined for
 	 * buck_configured to avoid creating bucks for every buck in multiphase
 	 */
-	for (multi = MULTI_FIRST; multi < MULTI_NUM; multi++) {
+	for (multi = MULTI_FIRST; multi < multi_phase_cnt; multi++) {
 		np = of_find_node_by_name(tps->dev->of_node, multiphases[multi]);
 		npname = of_node_full_name(np);
 		np_pmic_parent = of_get_parent(of_get_parent(np));
@@ -486,6 +646,11 @@  static int tps6594_regulator_probe(struct platform_device *pdev)
 		/* There is only 4 buck on LP8764 */
 		buck_configured[4] = 1;
 		reg_irq_nb = size_mul(REGS_INT_NB, (BUCK_NB - 1));
+	} else if (tps->chip_id == TPS65224) {
+		/* TPS65224 has 4 bucks and 3 LDOs. 1 Interrupt for each buck and ldo */
+		buck_configured[4] = 1;
+		ldo_configured[3] = 1;
+		reg_irq_nb = size_mul(1, (size_add((BUCK_NB - 1), (LDO_NB - 1))));
 	} else {
 		reg_irq_nb = size_mul(REGS_INT_NB, (size_add(BUCK_NB, LDO_NB)));
 	}
@@ -495,25 +660,30 @@  static int tps6594_regulator_probe(struct platform_device *pdev)
 	if (!irq_data)
 		return -ENOMEM;
 
-	for (i = 0; i < MULTI_PHASE_NB; i++) {
+	for (i = 0; i < multi_phase_cnt; i++) {
 		if (buck_multi[i] == 0)
 			continue;
 
+		const struct regulator_desc *multi_regs = (tps->chip_id == TPS65224) ?
+							   tps65224_multi_regs :
+							   tps6594_multi_regs;
 		rdev = devm_regulator_register(&pdev->dev, &multi_regs[i], &config);
-		if (IS_ERR(rdev))
-			return dev_err_probe(tps->dev, PTR_ERR(rdev),
-					     "failed to register %s regulator\n",
-					     pdev->name);
+			if (IS_ERR(rdev))
+				return dev_err_probe(tps->dev, PTR_ERR(rdev),
+						     "failed to register %s regulator\n",
+						     pdev->name);
 
 		/* config multiphase buck12+buck34 */
 		if (i == 1)
 			buck_idx = 2;
+
 		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
-						 tps6594_bucks_irq_types[buck_idx], &irq_idx);
+						 bucks_irq_types[buck_idx], &irq_idx);
 		if (error)
 			return error;
+
 		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
-						 tps6594_bucks_irq_types[buck_idx + 1], &irq_idx);
+						 bucks_irq_types[buck_idx + 1], &irq_idx);
 		if (error)
 			return error;
 
@@ -537,21 +707,34 @@  static int tps6594_regulator_probe(struct platform_device *pdev)
 		if (buck_configured[i] == 1)
 			continue;
 
-		rdev = devm_regulator_register(&pdev->dev, &buck_regs[i], &config);
+		const struct regulator_desc *buck_cfg = (tps->chip_id == TPS65224) ?
+							 tps65224_buck_regs : buck_regs;
+
+		rdev = devm_regulator_register(&pdev->dev, &buck_cfg[i], &config);
 		if (IS_ERR(rdev))
 			return dev_err_probe(tps->dev, PTR_ERR(rdev),
-					     "failed to register %s regulator\n",
-					     pdev->name);
+					     "failed to register %s regulator\n", pdev->name);
 
 		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
-						 tps6594_bucks_irq_types[i], &irq_idx);
+						 bucks_irq_types[i], &irq_idx);
 		if (error)
 			return error;
 	}
 
-	/* LP8764 dosen't have LDO */
+	/* LP8764 doesn't have LDO */
 	if (tps->chip_id != LP8764) {
-		for (i = 0; i < ARRAY_SIZE(ldo_regs); i++) {
+		for (i = 0; i < LDO_NB; i++) {
+			if (ldo_configured[i] == 1)
+				continue;
+
+			struct tps6594_regulator_irq_type **ldos_irq_types =
+						(tps->chip_id == TPS65224) ?
+						tps65224_ldos_irq_types : tps6594_ldos_irq_types;
+
+			const struct regulator_desc *ldo_regs =
+						(tps->chip_id == TPS65224) ?
+						tps65224_ldo_regs : tps6594_ldo_regs;
+
 			rdev = devm_regulator_register(&pdev->dev, &ldo_regs[i], &config);
 			if (IS_ERR(rdev))
 				return dev_err_probe(tps->dev, PTR_ERR(rdev),
@@ -559,8 +742,7 @@  static int tps6594_regulator_probe(struct platform_device *pdev)
 						     pdev->name);
 
 			error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
-							 tps6594_ldos_irq_types[i],
-							 &irq_idx);
+							 ldos_irq_types[i], &irq_idx);
 			if (error)
 				return error;
 		}
@@ -568,16 +750,21 @@  static int tps6594_regulator_probe(struct platform_device *pdev)
 
 	if (tps->chip_id == LP8764)
 		ext_reg_irq_nb = ARRAY_SIZE(tps6594_ext_regulator_irq_types);
+	else if (tps->chip_id == TPS65224)
+		ext_reg_irq_nb = ARRAY_SIZE(tps65224_ext_regulator_irq_types);
 
 	irq_ext_reg_data = devm_kmalloc_array(tps->dev,
-					ext_reg_irq_nb,
-					sizeof(struct tps6594_ext_regulator_irq_data),
-					GFP_KERNEL);
+					      ext_reg_irq_nb,
+					      sizeof(struct tps6594_ext_regulator_irq_data),
+					      GFP_KERNEL);
 	if (!irq_ext_reg_data)
 		return -ENOMEM;
 
 	for (i = 0; i < ext_reg_irq_nb; ++i) {
-		irq_type = &tps6594_ext_regulator_irq_types[i];
+		if (tps->chip_id == TPS65224)
+			irq_type = &tps65224_ext_regulator_irq_types[i];
+		else
+			irq_type = &tps6594_ext_regulator_irq_types[i];
 
 		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
 		if (irq < 0)
@@ -610,5 +797,6 @@  module_platform_driver(tps6594_regulator_driver);
 
 MODULE_ALIAS("platform:tps6594-regulator");
 MODULE_AUTHOR("Jerome Neanne <jneanne@baylibre.com>");
+MODULE_AUTHOR("Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>");
 MODULE_DESCRIPTION("TPS6594 voltage regulator driver");
 MODULE_LICENSE("GPL");