2012-06-08 02:27:57

by Axel Lin

[permalink] [raw]
Subject: [PATCH RFT 1/2] regulator: ab8500: Use regulator_list_voltage_linear for ab8500_regulator_fixed_ops

Also removes set_voltage_time_sel callback from ab8500_regulator_fixed_ops
because the voltage won't change. ( And ab8500_regulator_fixed_ops does not
implement get_voltage_sel so set_voltage_time_sel won't be called )

Signed-off-by: Axel Lin <[email protected]>
---
drivers/regulator/ab8500.c | 41 +++++++++--------------------------------
1 file changed, 9 insertions(+), 32 deletions(-)

diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index 290c289..c931c7c 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -32,7 +32,6 @@
* @regulator_dev: regulator device
* @max_uV: maximum voltage (for variable voltage supplies)
* @min_uV: minimum voltage (for variable voltage supplies)
- * @fixed_uV: typical voltage (for fixed voltage supplies)
* @update_bank: bank to control on/off
* @update_reg: register to control on/off
* @update_mask: mask to enable/disable regulator
@@ -48,7 +47,6 @@ struct ab8500_regulator_info {
struct regulator_dev *regulator;
int max_uV;
int min_uV;
- int fixed_uV;
u8 update_bank;
u8 update_reg;
u8 update_mask;
@@ -271,29 +269,9 @@ static struct regulator_ops ab8500_regulator_ops = {
.set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
};

-static int ab8500_fixed_list_voltage(struct regulator_dev *rdev,
- unsigned selector)
-{
- struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
-
- if (info == NULL) {
- dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
- return -EINVAL;
- }
-
- return info->fixed_uV;
-}
-
static int ab8500_fixed_get_voltage(struct regulator_dev *rdev)
{
- struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
-
- if (info == NULL) {
- dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
- return -EINVAL;
- }
-
- return info->fixed_uV;
+ return rdev->desc->min_uV;
}

static struct regulator_ops ab8500_regulator_fixed_ops = {
@@ -301,9 +279,8 @@ static struct regulator_ops ab8500_regulator_fixed_ops = {
.disable = ab8500_regulator_disable,
.is_enabled = ab8500_regulator_is_enabled,
.get_voltage = ab8500_fixed_get_voltage,
- .list_voltage = ab8500_fixed_list_voltage,
+ .list_voltage = regulator_list_voltage_linear,
.enable_time = ab8500_regulator_enable_time,
- .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
};

static struct ab8500_regulator_info
@@ -408,9 +385,9 @@ static struct ab8500_regulator_info
.id = AB8500_LDO_TVOUT,
.owner = THIS_MODULE,
.n_voltages = 1,
+ .min_uV = 2000000,
},
.delay = 10000,
- .fixed_uV = 2000000,
.update_bank = 0x03,
.update_reg = 0x80,
.update_mask = 0x82,
@@ -424,8 +401,8 @@ static struct ab8500_regulator_info
.id = AB8500_LDO_USB,
.owner = THIS_MODULE,
.n_voltages = 1,
+ .min_uV = 3300000,
},
- .fixed_uV = 3300000,
.update_bank = 0x03,
.update_reg = 0x82,
.update_mask = 0x03,
@@ -439,8 +416,8 @@ static struct ab8500_regulator_info
.id = AB8500_LDO_AUDIO,
.owner = THIS_MODULE,
.n_voltages = 1,
+ .min_uV = 2000000,
},
- .fixed_uV = 2000000,
.update_bank = 0x03,
.update_reg = 0x83,
.update_mask = 0x02,
@@ -454,8 +431,8 @@ static struct ab8500_regulator_info
.id = AB8500_LDO_ANAMIC1,
.owner = THIS_MODULE,
.n_voltages = 1,
+ .min_uV = 2050000,
},
- .fixed_uV = 2050000,
.update_bank = 0x03,
.update_reg = 0x83,
.update_mask = 0x08,
@@ -469,8 +446,8 @@ static struct ab8500_regulator_info
.id = AB8500_LDO_ANAMIC2,
.owner = THIS_MODULE,
.n_voltages = 1,
+ .min_uV = 2050000,
},
- .fixed_uV = 2050000,
.update_bank = 0x03,
.update_reg = 0x83,
.update_mask = 0x10,
@@ -484,8 +461,8 @@ static struct ab8500_regulator_info
.id = AB8500_LDO_DMIC,
.owner = THIS_MODULE,
.n_voltages = 1,
+ .min_uV = 1800000,
},
- .fixed_uV = 1800000,
.update_bank = 0x03,
.update_reg = 0x83,
.update_mask = 0x04,
@@ -499,8 +476,8 @@ static struct ab8500_regulator_info
.id = AB8500_LDO_ANA,
.owner = THIS_MODULE,
.n_voltages = 1,
+ .min_uV = 1200000,
},
- .fixed_uV = 1200000,
.update_bank = 0x04,
.update_reg = 0x06,
.update_mask = 0x0c,
--
1.7.9.5



2012-06-08 02:29:30

by Axel Lin

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Subject: [PATCH RFT 2/2] regulator: ab8500: Remove min_uV and max_uV from struct ab8500_regulator_info

The min_uV and max_uV are not really used in the code and misleading because
the min_uV and max_uV settings does not match the value in the voltage table.

For example, we have
static const unsigned int ldo_vaux3_voltages[] = {
1200000,
1500000,
1800000,
2100000,
2500000,
2750000,
2790000,
2910000,
};

With below min_uV/max_uV settings for AB8500_LDO_AUX3.
.min_uV = 1100000,
.max_uV = 3300000,

The min_uV/max_uV for AB8500_LDO_AUX3 seems copy-paste from AB8500_LDO_AUX2
and is wrong.

Signed-off-by: Axel Lin <[email protected]>
---
drivers/regulator/ab8500.c | 12 ------------
1 file changed, 12 deletions(-)

diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index c931c7c..13d424f 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -30,8 +30,6 @@
* @dev: device pointer
* @desc: regulator description
* @regulator_dev: regulator device
- * @max_uV: maximum voltage (for variable voltage supplies)
- * @min_uV: minimum voltage (for variable voltage supplies)
* @update_bank: bank to control on/off
* @update_reg: register to control on/off
* @update_mask: mask to enable/disable regulator
@@ -45,8 +43,6 @@ struct ab8500_regulator_info {
struct device *dev;
struct regulator_desc desc;
struct regulator_dev *regulator;
- int max_uV;
- int min_uV;
u8 update_bank;
u8 update_reg;
u8 update_mask;
@@ -301,8 +297,6 @@ static struct ab8500_regulator_info
.n_voltages = ARRAY_SIZE(ldo_vauxn_voltages),
.volt_table = ldo_vauxn_voltages,
},
- .min_uV = 1100000,
- .max_uV = 3300000,
.update_bank = 0x04,
.update_reg = 0x09,
.update_mask = 0x03,
@@ -321,8 +315,6 @@ static struct ab8500_regulator_info
.n_voltages = ARRAY_SIZE(ldo_vauxn_voltages),
.volt_table = ldo_vauxn_voltages,
},
- .min_uV = 1100000,
- .max_uV = 3300000,
.update_bank = 0x04,
.update_reg = 0x09,
.update_mask = 0x0c,
@@ -341,8 +333,6 @@ static struct ab8500_regulator_info
.n_voltages = ARRAY_SIZE(ldo_vaux3_voltages),
.volt_table = ldo_vaux3_voltages,
},
- .min_uV = 1100000,
- .max_uV = 3300000,
.update_bank = 0x04,
.update_reg = 0x0a,
.update_mask = 0x03,
@@ -361,8 +351,6 @@ static struct ab8500_regulator_info
.n_voltages = ARRAY_SIZE(ldo_vintcore_voltages),
.volt_table = ldo_vintcore_voltages,
},
- .min_uV = 1100000,
- .max_uV = 3300000,
.update_bank = 0x03,
.update_reg = 0x80,
.update_mask = 0x44,
--
1.7.9.5


2012-06-17 14:32:31

by Linus Walleij

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Subject: Re: [PATCH RFT 1/2] regulator: ab8500: Use regulator_list_voltage_linear for ab8500_regulator_fixed_ops

On Fri, Jun 8, 2012 at 4:27 AM, Axel Lin <[email protected]> wrote:

> Also removes set_voltage_time_sel callback from ab8500_regulator_fixed_ops
> because the voltage won't change. ( And ab8500_regulator_fixed_ops does not
> implement get_voltage_sel so set_voltage_time_sel won't be called )
>
> Signed-off-by: Axel Lin <[email protected]>

I cannot test this either, it does not apply cleanly on v3.5-rc3.

Care to respin?

Yours,
Linus Walleij

2012-06-17 16:55:55

by Mark Brown

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Subject: Re: [PATCH RFT 1/2] regulator: ab8500: Use regulator_list_voltage_linear for ab8500_regulator_fixed_ops

On Sun, Jun 17, 2012 at 04:24:52PM +0200, Linus Walleij wrote:
> On Fri, Jun 8, 2012 at 4:27 AM, Axel Lin <[email protected]> wrote:

> > Also removes set_voltage_time_sel callback from ab8500_regulator_fixed_ops
> > because the voltage won't change. ( And ab8500_regulator_fixed_ops does not
> > implement get_voltage_sel so set_voltage_time_sel won't be called )
> >
> > Signed-off-by: Axel Lin <[email protected]>

> I cannot test this either, it does not apply cleanly on v3.5-rc3.

> Care to respin?

This is a random development patch which means it'll get applied against
the regulator tree as it stands so that's what the patch should be
submitted against - if you're going to test then grabbing my for-next
branch is the way forward.


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2012-06-17 20:05:10

by Mark Brown

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Subject: Re: [PATCH RFT 1/2] regulator: ab8500: Use regulator_list_voltage_linear for ab8500_regulator_fixed_ops

On Fri, Jun 08, 2012 at 10:27:49AM +0800, Axel Lin wrote:
> Also removes set_voltage_time_sel callback from ab8500_regulator_fixed_ops
> because the voltage won't change. ( And ab8500_regulator_fixed_ops does not
> implement get_voltage_sel so set_voltage_time_sel won't be called )

Applied both, thanks.


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2012-06-18 06:15:46

by Linus Walleij

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Subject: Re: [PATCH RFT 1/2] regulator: ab8500: Use regulator_list_voltage_linear for ab8500_regulator_fixed_ops

On Sun, Jun 17, 2012 at 6:55 PM, Mark Brown
<[email protected]> wrote:
> On Sun, Jun 17, 2012 at 04:24:52PM +0200, Linus Walleij wrote:
>> On Fri, Jun 8, 2012 at 4:27 AM, Axel Lin <[email protected]> wrote:
>
>> > Also removes set_voltage_time_sel callback from ab8500_regulator_fixed_ops
>> > because the voltage won't change. ( And ab8500_regulator_fixed_ops does not
>> > implement get_voltage_sel so set_voltage_time_sel won't be called )
>> >
>> > Signed-off-by: Axel Lin <[email protected]>
>
>> I cannot test this either, it does not apply cleanly on v3.5-rc3.
>
>> Care to respin?
>
> This is a random development patch which means it'll get applied against
> the regulator tree as it stands so that's what the patch should be
> submitted against - if you're going to test then grabbing my for-next
> branch is the way forward.

I was mostly reacting to the "RFT" keyword in the subject, so I tried to
test rather than just ACK it, but it's applied now anyway so whatever.
Acked-by.

Yours,
Linus Walleij

2012-06-18 09:38:20

by Mark Brown

[permalink] [raw]
Subject: Re: [PATCH RFT 1/2] regulator: ab8500: Use regulator_list_voltage_linear for ab8500_regulator_fixed_ops

On Mon, Jun 18, 2012 at 08:15:42AM +0200, Linus Walleij wrote:

> I was mostly reacting to the "RFT" keyword in the subject, so I tried to
> test rather than just ACK it, but it's applied now anyway so whatever.
> Acked-by.

Given the fact that lots of regulator drivers have no regular maintainer
and that Axel so rarely gets things wrong I'm usually OK with applying
things from him if I don't see a review within about a week (with things
where I just don't expect a response at all I tend to apply immediately).


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