* [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation
@ 2014-03-07 15:41 Axel Lin
2014-03-07 15:43 ` [PATCH 2/3] regulator: pbias: Convert to use regmap helper functions Axel Lin
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Axel Lin @ 2014-03-07 15:41 UTC (permalink / raw)
To: Chris Ball, Liam Girdwood, Mark Brown
Cc: Balaji T K, Florian Vaussard, Stefan Roese, linux-kernel,
linux-mmc
The is_enabled implementation is wrong in some cases:
e.g. for pbias_mmc_omap5: emable_mask is : BIT(27) | BIT(25) | BIT(26)
However, pbias_regulator_enable() only sets BIT(26) | BIT(22) bits.
So is_enabled callback will always return false in this case.
Fix the logic to compare the register value with info->enable rather than
info->enable_mask.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/regulator/pbias-regulator.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
index ded3b35..d89a1d8 100644
--- a/drivers/regulator/pbias-regulator.c
+++ b/drivers/regulator/pbias-regulator.c
@@ -108,7 +108,7 @@ static int pbias_regulator_is_enable(struct regulator_dev *rdev)
regmap_read(data->syscon, data->pbias_reg, &value);
- return (value & info->enable_mask) == info->enable_mask;
+ return (value & info->enable_mask) == info->enable;
}
static struct regulator_ops pbias_regulator_voltage_ops = {
--
1.8.1.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/3] regulator: pbias: Convert to use regmap helper functions
2014-03-07 15:41 [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation Axel Lin
@ 2014-03-07 15:43 ` Axel Lin
2014-03-07 16:46 ` Balaji T K
2014-03-07 15:50 ` [PATCH 3/3] regulator: pbias: Convert to use regulator_[enable|is_enabled]_regmap Axel Lin
2014-03-07 16:48 ` [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation Balaji T K
2 siblings, 1 reply; 6+ messages in thread
From: Axel Lin @ 2014-03-07 15:43 UTC (permalink / raw)
To: Chris Ball
Cc: Liam Girdwood, Mark Brown, Balaji T K, Florian Vaussard,
Stefan Roese, linux-kernel, linux-mmc
This patch converts this driver to use the regmap helper functions provided by
regulator core.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/regulator/pbias-regulator.c | 74 ++++++++++---------------------------
1 file changed, 19 insertions(+), 55 deletions(-)
diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
index d89a1d8..6d38be3 100644
--- a/drivers/regulator/pbias-regulator.c
+++ b/drivers/regulator/pbias-regulator.c
@@ -38,66 +38,24 @@ struct pbias_reg_info {
struct pbias_regulator_data {
struct regulator_desc desc;
void __iomem *pbias_addr;
- unsigned int pbias_reg;
struct regulator_dev *dev;
struct regmap *syscon;
const struct pbias_reg_info *info;
int voltage;
};
-static int pbias_regulator_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV, unsigned *selector)
-{
- struct pbias_regulator_data *data = rdev_get_drvdata(dev);
- const struct pbias_reg_info *info = data->info;
- int ret, vmode;
-
- if (min_uV <= 1800000)
- vmode = 0;
- else if (min_uV > 1800000)
- vmode = info->vmode;
-
- ret = regmap_update_bits(data->syscon, data->pbias_reg,
- info->vmode, vmode);
-
- return ret;
-}
-
-static int pbias_regulator_get_voltage(struct regulator_dev *rdev)
-{
- struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
- const struct pbias_reg_info *info = data->info;
- int value, voltage;
-
- regmap_read(data->syscon, data->pbias_reg, &value);
- value &= info->vmode;
-
- voltage = value ? 3000000 : 1800000;
-
- return voltage;
-}
+static const unsigned int pbias_volt_table[] = {
+ 1800000,
+ 3000000
+};
static int pbias_regulator_enable(struct regulator_dev *rdev)
{
struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
const struct pbias_reg_info *info = data->info;
- int ret;
-
- ret = regmap_update_bits(data->syscon, data->pbias_reg,
- info->enable_mask, info->enable);
-
- return ret;
-}
-
-static int pbias_regulator_disable(struct regulator_dev *rdev)
-{
- struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
- const struct pbias_reg_info *info = data->info;
- int ret;
- ret = regmap_update_bits(data->syscon, data->pbias_reg,
- info->enable_mask, 0);
- return ret;
+ return regmap_update_bits(data->syscon, rdev->desc->enable_reg,
+ info->enable_mask, info->enable);
}
static int pbias_regulator_is_enable(struct regulator_dev *rdev)
@@ -106,17 +64,18 @@ static int pbias_regulator_is_enable(struct regulator_dev *rdev)
const struct pbias_reg_info *info = data->info;
int value;
- regmap_read(data->syscon, data->pbias_reg, &value);
+ regmap_read(data->syscon, rdev->desc->enable_reg, &value);
return (value & info->enable_mask) == info->enable;
}
static struct regulator_ops pbias_regulator_voltage_ops = {
- .set_voltage = pbias_regulator_set_voltage,
- .get_voltage = pbias_regulator_get_voltage,
- .enable = pbias_regulator_enable,
- .disable = pbias_regulator_disable,
- .is_enabled = pbias_regulator_is_enable,
+ .list_voltage = regulator_list_voltage_table,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .enable = pbias_regulator_enable,
+ .disable = regulator_disable_regmap,
+ .is_enabled = pbias_regulator_is_enable,
};
static const struct pbias_reg_info pbias_mmc_omap2430 = {
@@ -192,6 +151,7 @@ static int pbias_regulator_probe(struct platform_device *pdev)
if (IS_ERR(syscon))
return PTR_ERR(syscon);
+ cfg.regmap = syscon;
cfg.dev = &pdev->dev;
for (idx = 0; idx < PBIAS_NUM_REGS && data_idx < count; idx++) {
@@ -207,15 +167,19 @@ static int pbias_regulator_probe(struct platform_device *pdev)
if (!res)
return -EINVAL;
- drvdata[data_idx].pbias_reg = res->start;
drvdata[data_idx].syscon = syscon;
drvdata[data_idx].info = info;
drvdata[data_idx].desc.name = info->name;
drvdata[data_idx].desc.owner = THIS_MODULE;
drvdata[data_idx].desc.type = REGULATOR_VOLTAGE;
drvdata[data_idx].desc.ops = &pbias_regulator_voltage_ops;
+ drvdata[data_idx].desc.volt_table = pbias_volt_table;
drvdata[data_idx].desc.n_voltages = 2;
drvdata[data_idx].desc.enable_time = info->enable_time;
+ drvdata[data_idx].desc.vsel_reg = res->start;
+ drvdata[data_idx].desc.vsel_mask = info->vmode;
+ drvdata[data_idx].desc.enable_reg = res->start;
+ drvdata[data_idx].desc.enable_mask = info->enable_mask;
cfg.init_data = pbias_matches[idx].init_data;
cfg.driver_data = &drvdata[data_idx];
--
1.8.1.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 3/3] regulator: pbias: Convert to use regulator_[enable|is_enabled]_regmap
2014-03-07 15:41 [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation Axel Lin
2014-03-07 15:43 ` [PATCH 2/3] regulator: pbias: Convert to use regmap helper functions Axel Lin
@ 2014-03-07 15:50 ` Axel Lin
2014-03-07 16:46 ` Balaji T K
2014-03-07 16:48 ` [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation Balaji T K
2 siblings, 1 reply; 6+ messages in thread
From: Axel Lin @ 2014-03-07 15:50 UTC (permalink / raw)
To: Chris Ball
Cc: Liam Girdwood, Mark Brown, Balaji T K, Florian Vaussard,
Stefan Roese, linux-kernel, linux-mmc
Since commit ca5d1b3524b4d
"regulator: helpers: Modify helpers enabling multi-bit control",
we can set enable_val setting for device that use multiple bits for control
when using regmap enable/disable/bypass ops.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
Note:
This patch depends on below commit which is only in regulator tree now:
http://git.kernel.org/cgit/linux/kernel/git/broonie/regulator.git/commit/?h=topic/enable
I sent this for reveiw and test now.
if it works, I'll resend it once 3.5-rc1 is released.
drivers/regulator/pbias-regulator.c | 25 +++----------------------
1 file changed, 3 insertions(+), 22 deletions(-)
diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
index 6d38be3..708ddbb 100644
--- a/drivers/regulator/pbias-regulator.c
+++ b/drivers/regulator/pbias-regulator.c
@@ -49,33 +49,13 @@ static const unsigned int pbias_volt_table[] = {
3000000
};
-static int pbias_regulator_enable(struct regulator_dev *rdev)
-{
- struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
- const struct pbias_reg_info *info = data->info;
-
- return regmap_update_bits(data->syscon, rdev->desc->enable_reg,
- info->enable_mask, info->enable);
-}
-
-static int pbias_regulator_is_enable(struct regulator_dev *rdev)
-{
- struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
- const struct pbias_reg_info *info = data->info;
- int value;
-
- regmap_read(data->syscon, rdev->desc->enable_reg, &value);
-
- return (value & info->enable_mask) == info->enable;
-}
-
static struct regulator_ops pbias_regulator_voltage_ops = {
.list_voltage = regulator_list_voltage_table,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
- .enable = pbias_regulator_enable,
+ .enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
- .is_enabled = pbias_regulator_is_enable,
+ .is_enabled = regulator_is_enabled_regmap,
};
static const struct pbias_reg_info pbias_mmc_omap2430 = {
@@ -180,6 +160,7 @@ static int pbias_regulator_probe(struct platform_device *pdev)
drvdata[data_idx].desc.vsel_mask = info->vmode;
drvdata[data_idx].desc.enable_reg = res->start;
drvdata[data_idx].desc.enable_mask = info->enable_mask;
+ drvdata[data_idx].desc.enable_val = info->enable;
cfg.init_data = pbias_matches[idx].init_data;
cfg.driver_data = &drvdata[data_idx];
--
1.8.1.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 3/3] regulator: pbias: Convert to use regulator_[enable|is_enabled]_regmap
2014-03-07 15:50 ` [PATCH 3/3] regulator: pbias: Convert to use regulator_[enable|is_enabled]_regmap Axel Lin
@ 2014-03-07 16:46 ` Balaji T K
0 siblings, 0 replies; 6+ messages in thread
From: Balaji T K @ 2014-03-07 16:46 UTC (permalink / raw)
To: Axel Lin
Cc: Chris Ball, Liam Girdwood, Mark Brown, Florian Vaussard,
Stefan Roese, linux-kernel, linux-mmc
On Friday 07 March 2014 09:20 PM, Axel Lin wrote:
> Since commit ca5d1b3524b4d
> "regulator: helpers: Modify helpers enabling multi-bit control",
> we can set enable_val setting for device that use multiple bits for control
> when using regmap enable/disable/bypass ops.
>
> Signed-off-by: Axel Lin <axel.lin@ingics.com>
> ---
> Note:
> This patch depends on below commit which is only in regulator tree now:
> http://git.kernel.org/cgit/linux/kernel/git/broonie/regulator.git/commit/?h=topic/enable
>
> I sent this for reveiw and test now.
> if it works, I'll resend it once 3.5-rc1 is released.
Hi,
I tested this series with above dependent commit and it works as excepted
So you can add my,
Tested-by: Balaji T K <balajitk@ti.com>
Thanks for doing regmap conversion, now pbias driver looks as minimal as possible.
>
> drivers/regulator/pbias-regulator.c | 25 +++----------------------
> 1 file changed, 3 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
> index 6d38be3..708ddbb 100644
> --- a/drivers/regulator/pbias-regulator.c
> +++ b/drivers/regulator/pbias-regulator.c
> @@ -49,33 +49,13 @@ static const unsigned int pbias_volt_table[] = {
> 3000000
> };
>
> -static int pbias_regulator_enable(struct regulator_dev *rdev)
> -{
> - struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
> - const struct pbias_reg_info *info = data->info;
> -
> - return regmap_update_bits(data->syscon, rdev->desc->enable_reg,
> - info->enable_mask, info->enable);
> -}
> -
> -static int pbias_regulator_is_enable(struct regulator_dev *rdev)
> -{
> - struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
> - const struct pbias_reg_info *info = data->info;
> - int value;
> -
> - regmap_read(data->syscon, rdev->desc->enable_reg, &value);
> -
> - return (value & info->enable_mask) == info->enable;
> -}
> -
> static struct regulator_ops pbias_regulator_voltage_ops = {
> .list_voltage = regulator_list_voltage_table,
> .get_voltage_sel = regulator_get_voltage_sel_regmap,
> .set_voltage_sel = regulator_set_voltage_sel_regmap,
> - .enable = pbias_regulator_enable,
> + .enable = regulator_enable_regmap,
> .disable = regulator_disable_regmap,
> - .is_enabled = pbias_regulator_is_enable,
> + .is_enabled = regulator_is_enabled_regmap,
> };
>
> static const struct pbias_reg_info pbias_mmc_omap2430 = {
> @@ -180,6 +160,7 @@ static int pbias_regulator_probe(struct platform_device *pdev)
> drvdata[data_idx].desc.vsel_mask = info->vmode;
> drvdata[data_idx].desc.enable_reg = res->start;
> drvdata[data_idx].desc.enable_mask = info->enable_mask;
> + drvdata[data_idx].desc.enable_val = info->enable;
>
> cfg.init_data = pbias_matches[idx].init_data;
> cfg.driver_data = &drvdata[data_idx];
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/3] regulator: pbias: Convert to use regmap helper functions
2014-03-07 15:43 ` [PATCH 2/3] regulator: pbias: Convert to use regmap helper functions Axel Lin
@ 2014-03-07 16:46 ` Balaji T K
0 siblings, 0 replies; 6+ messages in thread
From: Balaji T K @ 2014-03-07 16:46 UTC (permalink / raw)
To: Axel Lin
Cc: Chris Ball, Liam Girdwood, Mark Brown, Florian Vaussard,
Stefan Roese, linux-kernel, linux-mmc
On Friday 07 March 2014 09:13 PM, Axel Lin wrote:
> This patch converts this driver to use the regmap helper functions provided by
> regulator core.
>
> Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Balaji T K <balajitk@ti.com>
> ---
> drivers/regulator/pbias-regulator.c | 74 ++++++++++---------------------------
> 1 file changed, 19 insertions(+), 55 deletions(-)
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation
2014-03-07 15:41 [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation Axel Lin
2014-03-07 15:43 ` [PATCH 2/3] regulator: pbias: Convert to use regmap helper functions Axel Lin
2014-03-07 15:50 ` [PATCH 3/3] regulator: pbias: Convert to use regulator_[enable|is_enabled]_regmap Axel Lin
@ 2014-03-07 16:48 ` Balaji T K
2 siblings, 0 replies; 6+ messages in thread
From: Balaji T K @ 2014-03-07 16:48 UTC (permalink / raw)
To: Axel Lin
Cc: Chris Ball, Liam Girdwood, Mark Brown, Florian Vaussard,
Stefan Roese, linux-kernel, linux-mmc
On Friday 07 March 2014 09:11 PM, Axel Lin wrote:
> The is_enabled implementation is wrong in some cases:
> e.g. for pbias_mmc_omap5: emable_mask is : BIT(27) | BIT(25) | BIT(26)
Hi Axel,
s/emable_mask/enable_mask
> However, pbias_regulator_enable() only sets BIT(26) | BIT(22) bits.
You mixed up enable_mask of omap5 with .enable of omap4 :-)
above comment should be
"However, pbias_regulator_enable() only sets BIT(27) | BIT(26) bits"
Other than that
Acked-by: Balaji T K <balajitk@ti.com>
> So is_enabled callback will always return false in this case.
> Fix the logic to compare the register value with info->enable rather than
> info->enable_mask.
>
> Signed-off-by: Axel Lin <axel.lin@ingics.com>
> ---
> drivers/regulator/pbias-regulator.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
> index ded3b35..d89a1d8 100644
> --- a/drivers/regulator/pbias-regulator.c
> +++ b/drivers/regulator/pbias-regulator.c
> @@ -108,7 +108,7 @@ static int pbias_regulator_is_enable(struct regulator_dev *rdev)
>
> regmap_read(data->syscon, data->pbias_reg, &value);
>
> - return (value & info->enable_mask) == info->enable_mask;
> + return (value & info->enable_mask) == info->enable;
> }
>
> static struct regulator_ops pbias_regulator_voltage_ops = {
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-03-07 16:49 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2014-03-07 15:41 [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation Axel Lin
2014-03-07 15:43 ` [PATCH 2/3] regulator: pbias: Convert to use regmap helper functions Axel Lin
2014-03-07 16:46 ` Balaji T K
2014-03-07 15:50 ` [PATCH 3/3] regulator: pbias: Convert to use regulator_[enable|is_enabled]_regmap Axel Lin
2014-03-07 16:46 ` Balaji T K
2014-03-07 16:48 ` [PATCH 1/3] regulator: pbias: Fix is_enabled callback implementation Balaji T K
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