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Date: Mon, 12 Mar 2012 12:11:46 +0800
From: Axel Lin <axel.lin@...il.com>
To: linux-kernel@...r.kernel.org
Cc: AnilKumar Ch <anilkumar@...com>, Liam Girdwood <lrg@...com>,
Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH] regulator: Merge tps65217_pmic_ldo234_ops and
tps65217_pmic_dcdc_ops to tps65217_pmic_ops
Most callback functions implementation for tps65217_pmic_ldo234_ops and
tps65217_pmic_dcdc_ops are the same except the rid range checking.
This patch uses tps65217_pmic_ops for all DCDCx, LDO2, LDO3, and LDO4.
And rework tps65217_pmic_set_voltage to make it can be called for
DCDCx, LDO2, LDO3, and LDO4.
Signed-off-by: Axel Lin <axel.lin@...il.com>
---
drivers/regulator/tps65217-regulator.c | 259 +++++++++-----------------------
1 files changed, 72 insertions(+), 187 deletions(-)
diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c
index 15f2fa0..e39521b 100644
--- a/drivers/regulator/tps65217-regulator.c
+++ b/drivers/regulator/tps65217-regulator.c
@@ -151,166 +151,69 @@ static struct tps_info tps65217_pmic_regs[] = {
TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK),
};
-static int tps65217_pmic_dcdc_is_enabled(struct regulator_dev *dev)
+static int tps65217_pmic_is_enabled(struct regulator_dev *dev)
{
int ret;
struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int data, dcdc = rdev_get_id(dev);
+ unsigned int data, rid = rdev_get_id(dev);
- if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
if (ret)
return ret;
- return (data & tps->info[dcdc]->enable_mask) ? 1 : 0;
+ return (data & tps->info[rid]->enable_mask) ? 1 : 0;
}
-static int tps65217_pmic_ldo_is_enabled(struct regulator_dev *dev)
+static int tps65217_pmic_enable(struct regulator_dev *dev)
{
- int ret;
struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int data, ldo = rdev_get_id(dev);
+ unsigned int rid = rdev_get_id(dev);
- if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
- return -EINVAL;
-
- ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
- if (ret)
- return ret;
-
- return (data & tps->info[ldo]->enable_mask) ? 1 : 0;
-}
-
-static int tps65217_pmic_dcdc_enable(struct regulator_dev *dev)
-{
- struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int dcdc = rdev_get_id(dev);
-
- if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
/* Enable the regulator and password protection is level 1 */
return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
- tps->info[dcdc]->enable_mask,
- tps->info[dcdc]->enable_mask,
+ tps->info[rid]->enable_mask,
+ tps->info[rid]->enable_mask,
TPS65217_PROTECT_L1);
}
-static int tps65217_pmic_dcdc_disable(struct regulator_dev *dev)
+static int tps65217_pmic_disable(struct regulator_dev *dev)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int dcdc = rdev_get_id(dev);
+ unsigned int rid = rdev_get_id(dev);
- if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
/* Disable the regulator and password protection is level 1 */
return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
- tps->info[dcdc]->enable_mask, TPS65217_PROTECT_L1);
-}
-
-static int tps65217_pmic_ldo_enable(struct regulator_dev *dev)
-{
- struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int ldo = rdev_get_id(dev);
-
- if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
- return -EINVAL;
-
- /* Enable the regulator and password protection is level 1 */
- return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
- tps->info[ldo]->enable_mask,
- tps->info[ldo]->enable_mask,
- TPS65217_PROTECT_L1);
-}
-
-static int tps65217_pmic_ldo_disable(struct regulator_dev *dev)
-{
- struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int ldo = rdev_get_id(dev);
-
- if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
- return -EINVAL;
-
- /* Disable the regulator and password protection is level 1 */
- return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
- tps->info[ldo]->enable_mask, TPS65217_PROTECT_L1);
-}
-
-static int tps65217_pmic_dcdc_get_voltage_sel(struct regulator_dev *dev)
-{
- int ret;
- struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int selector, dcdc = rdev_get_id(dev);
-
- if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
- return -EINVAL;
-
- ret = tps65217_reg_read(tps, tps->info[dcdc]->set_vout_reg, &selector);
- if (ret)
- return ret;
-
- selector &= tps->info[dcdc]->set_vout_mask;
-
- return selector;
+ tps->info[rid]->enable_mask, TPS65217_PROTECT_L1);
}
-static int tps65217_pmic_dcdc_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV, unsigned *selector)
+static int tps65217_pmic_get_voltage_sel(struct regulator_dev *dev)
{
int ret;
struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int dcdc = rdev_get_id(dev);
-
- if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
- return -EINVAL;
+ unsigned int selector, rid = rdev_get_id(dev);
- if (min_uV < tps->info[dcdc]->min_uV
- || min_uV > tps->info[dcdc]->max_uV)
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
- if (max_uV < tps->info[dcdc]->min_uV
- || max_uV > tps->info[dcdc]->max_uV)
- return -EINVAL;
-
- ret = tps->info[dcdc]->uv_to_vsel(min_uV, selector);
+ ret = tps65217_reg_read(tps, tps->info[rid]->set_vout_reg, &selector);
if (ret)
return ret;
- /* Set the voltage based on vsel value and write protect level is 2 */
- ret = tps65217_set_bits(tps, tps->info[dcdc]->set_vout_reg,
- tps->info[dcdc]->set_vout_mask,
- *selector, TPS65217_PROTECT_L2);
- if (ret)
- return ret;
-
- /* Set GO bit to initiate voltage transistion */
- return tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
- TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
- TPS65217_PROTECT_L2);
-}
-
-static int tps65217_pmic_ldo_get_voltage_sel(struct regulator_dev *dev)
-{
- int ret;
- struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int selector, ldo = rdev_get_id(dev);
-
- if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
- return -EINVAL;
-
- ret = tps65217_reg_read(tps, tps->info[ldo]->set_vout_reg, &selector);
- if (ret)
- return ret;
-
- selector &= tps->info[ldo]->set_vout_mask;
+ selector &= tps->info[rid]->set_vout_mask;
return selector;
}
-static int tps65217_pmic_ldo_set_voltage_sel(struct regulator_dev *dev,
+static int tps65217_pmic_ldo1_set_voltage_sel(struct regulator_dev *dev,
unsigned selector)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
@@ -328,112 +231,95 @@ static int tps65217_pmic_ldo_set_voltage_sel(struct regulator_dev *dev,
selector, TPS65217_PROTECT_L2);
}
-static int tps65217_pmic_ldo_set_voltage(struct regulator_dev *dev,
+static int tps65217_pmic_set_voltage(struct regulator_dev *dev,
int min_uV, int max_uV, unsigned *selector)
{
int ret;
struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int ldo = rdev_get_id(dev);
+ unsigned int rid = rdev_get_id(dev);
- if (ldo < TPS65217_LDO_2 || ldo > TPS65217_LDO_4)
+ /* LDO1 implements set_voltage_sel callback */
+ if (rid == TPS65217_LDO_1)
return -EINVAL;
- if (min_uV < tps->info[ldo]->min_uV
- || min_uV > tps->info[ldo]->max_uV)
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
- if (max_uV < tps->info[ldo]->min_uV
- || max_uV > tps->info[ldo]->max_uV)
+ if (min_uV < tps->info[rid]->min_uV
+ || min_uV > tps->info[rid]->max_uV)
return -EINVAL;
- ret = tps->info[ldo]->uv_to_vsel(min_uV, selector);
+ if (max_uV < tps->info[rid]->min_uV
+ || max_uV > tps->info[rid]->max_uV)
+ return -EINVAL;
+
+ ret = tps->info[rid]->uv_to_vsel(min_uV, selector);
if (ret)
return ret;
/* Set the voltage based on vsel value and write protect level is 2 */
- return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
- tps->info[ldo]->set_vout_mask,
- *selector, TPS65217_PROTECT_L2);
-}
-
-static int tps65217_pmic_dcdc_list_voltage(struct regulator_dev *dev,
- unsigned selector)
-{
- struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int dcdc = rdev_get_id(dev);
-
- if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
- return -EINVAL;
-
- if (selector >= tps->info[dcdc]->table_len)
- return -EINVAL;
+ ret = tps65217_set_bits(tps, tps->info[rid]->set_vout_reg,
+ tps->info[rid]->set_vout_mask,
+ *selector, TPS65217_PROTECT_L2);
+
+ /* Set GO bit for DCDCx to initiate voltage transistion */
+ switch (rid) {
+ case TPS65217_DCDC_1 ... TPS65217_DCDC_3:
+ ret = tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
+ TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
+ TPS65217_PROTECT_L2);
+ break;
+ }
- return tps->info[dcdc]->vsel_to_uv(selector);
+ return ret;
}
-static int tps65217_pmic_ldo_list_voltage(struct regulator_dev *dev,
+static int tps65217_pmic_list_voltage(struct regulator_dev *dev,
unsigned selector)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
- unsigned int ldo = rdev_get_id(dev);
+ unsigned int rid = rdev_get_id(dev);
- if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
- if (selector >= tps->info[ldo]->table_len)
+ if (selector >= tps->info[rid]->table_len)
return -EINVAL;
- if (tps->info[ldo]->table)
- return tps->info[ldo]->table[selector];
+ if (tps->info[rid]->table)
+ return tps->info[rid]->table[selector];
- return tps->info[ldo]->vsel_to_uv(selector);
+ return tps->info[rid]->vsel_to_uv(selector);
}
-/* Operations permitted on DCDCx */
-static struct regulator_ops tps65217_pmic_dcdc_ops = {
- .is_enabled = tps65217_pmic_dcdc_is_enabled,
- .enable = tps65217_pmic_dcdc_enable,
- .disable = tps65217_pmic_dcdc_disable,
- .get_voltage_sel = tps65217_pmic_dcdc_get_voltage_sel,
- .set_voltage = tps65217_pmic_dcdc_set_voltage,
- .list_voltage = tps65217_pmic_dcdc_list_voltage,
+/* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */
+static struct regulator_ops tps65217_pmic_ops = {
+ .is_enabled = tps65217_pmic_is_enabled,
+ .enable = tps65217_pmic_enable,
+ .disable = tps65217_pmic_disable,
+ .get_voltage_sel = tps65217_pmic_get_voltage_sel,
+ .set_voltage = tps65217_pmic_set_voltage,
+ .list_voltage = tps65217_pmic_list_voltage,
};
/* Operations permitted on LDO1 */
static struct regulator_ops tps65217_pmic_ldo1_ops = {
- .is_enabled = tps65217_pmic_ldo_is_enabled,
- .enable = tps65217_pmic_ldo_enable,
- .disable = tps65217_pmic_ldo_disable,
- .get_voltage_sel = tps65217_pmic_ldo_get_voltage_sel,
- .set_voltage_sel = tps65217_pmic_ldo_set_voltage_sel,
- .list_voltage = tps65217_pmic_ldo_list_voltage,
-};
-
-/* Operations permitted on LDO2, LDO3 and LDO4 */
-static struct regulator_ops tps65217_pmic_ldo234_ops = {
- .is_enabled = tps65217_pmic_ldo_is_enabled,
- .enable = tps65217_pmic_ldo_enable,
- .disable = tps65217_pmic_ldo_disable,
- .get_voltage_sel = tps65217_pmic_ldo_get_voltage_sel,
- .set_voltage = tps65217_pmic_ldo_set_voltage,
- .list_voltage = tps65217_pmic_ldo_list_voltage,
+ .is_enabled = tps65217_pmic_is_enabled,
+ .enable = tps65217_pmic_enable,
+ .disable = tps65217_pmic_disable,
+ .get_voltage_sel = tps65217_pmic_get_voltage_sel,
+ .set_voltage_sel = tps65217_pmic_ldo1_set_voltage_sel,
+ .list_voltage = tps65217_pmic_list_voltage,
};
static struct regulator_desc regulators[] = {
- TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1,
- tps65217_pmic_dcdc_ops, 64),
- TPS65217_REGULATOR("DCDC2",TPS65217_DCDC_2,
- tps65217_pmic_dcdc_ops, 64),
- TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3,
- tps65217_pmic_dcdc_ops, 64),
- TPS65217_REGULATOR("LDO1", TPS65217_LDO_1,
- tps65217_pmic_ldo1_ops, 16),
- TPS65217_REGULATOR("LDO2", TPS65217_LDO_2,
- tps65217_pmic_ldo234_ops, 64),
- TPS65217_REGULATOR("LDO3", TPS65217_LDO_3,
- tps65217_pmic_ldo234_ops, 32),
- TPS65217_REGULATOR("LDO4", TPS65217_LDO_4,
- tps65217_pmic_ldo234_ops, 32),
+ TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64),
+ TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64),
+ TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64),
+ TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16),
+ TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64),
+ TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32),
+ TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32),
};
static int __devinit tps65217_regulator_probe(struct platform_device *pdev)
@@ -486,7 +372,6 @@ static void __exit tps65217_regulator_exit(void)
}
module_exit(tps65217_regulator_exit);
-
MODULE_AUTHOR("AnilKumar Ch <anilkumar@...com>");
MODULE_DESCRIPTION("TPS65217 voltage regulator driver");
MODULE_ALIAS("platform:tps65217-pmic");
--
1.7.5.4
--
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