From: Axel Lin <axel.lin@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Laxman Dewangan <ldewangan@nvidia.com>,
Liam Girdwood <lrg@ti.com>,
Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: [PATCH 1/2] regulator: rc5t583: Remove nsteps from struct rc5t583_regulator_info
Date: Thu, 05 Apr 2012 14:04:48 +0800 [thread overview]
Message-ID: <1333605888.18055.1.camel@phoenix> (raw)
The nsteps can be calculated by (_max_mv - _min_mv) * 1000 / _step_uV + 1,
thus we can remove _nsteps from RC5T583_REG macro, and then remove
nsteps from struct rc5t583_regulator_info.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
drivers/regulator/rc5t583-regulator.c | 37 +++++++++++++++-----------------
1 files changed, 17 insertions(+), 20 deletions(-)
diff --git a/drivers/regulator/rc5t583-regulator.c b/drivers/regulator/rc5t583-regulator.c
index dc9ebb9..578bd5d 100644
--- a/drivers/regulator/rc5t583-regulator.c
+++ b/drivers/regulator/rc5t583-regulator.c
@@ -49,7 +49,6 @@ struct rc5t583_regulator_info {
int min_uV;
int max_uV;
int step_uV;
- int nsteps;
/* Regulator specific turn-on delay and voltage settling time*/
int enable_uv_per_us;
@@ -131,7 +130,7 @@ static int rc5t583_set_voltage_sel(struct regulator_dev *rdev,
struct rc5t583_regulator *reg = rdev_get_drvdata(rdev);
struct rc5t583_regulator_info *ri = reg->reg_info;
int ret;
- if (selector >= ri->nsteps) {
+ if (selector >= rdev->desc->n_voltages) {
dev_err(&rdev->dev, "Invalid selector 0x%02x\n", selector);
return -EINVAL;
}
@@ -198,8 +197,7 @@ static struct regulator_ops rc5t583_ops = {
};
#define RC5T583_REG(_id, _en_reg, _en_bit, _disc_reg, _disc_bit, _vout_reg, \
- _vout_mask, _ds_reg, _min_mv, _max_mv, _step_uV, _nsteps, \
- _enable_mv) \
+ _vout_mask, _ds_reg, _min_mv, _max_mv, _step_uV, _enable_mv) \
{ \
.reg_en_reg = RC5T583_REG_##_en_reg, \
.en_bit = _en_bit, \
@@ -211,14 +209,13 @@ static struct regulator_ops rc5t583_ops = {
.min_uV = _min_mv * 1000, \
.max_uV = _max_mv * 1000, \
.step_uV = _step_uV, \
- .nsteps = _nsteps, \
.enable_uv_per_us = _enable_mv * 1000, \
.change_uv_per_us = 40 * 1000, \
.deepsleep_id = RC5T583_DS_##_id, \
.desc = { \
.name = "rc5t583-regulator-"#_id, \
.id = RC5T583_REGULATOR_##_id, \
- .n_voltages = _nsteps, \
+ .n_voltages = (_max_mv - _min_mv) * 1000 / _step_uV + 1, \
.ops = &rc5t583_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
@@ -227,33 +224,33 @@ static struct regulator_ops rc5t583_ops = {
static struct rc5t583_regulator_info rc5t583_reg_info[RC5T583_REGULATOR_MAX] = {
RC5T583_REG(DC0, DC0CTL, 0, DC0CTL, 1, DC0DAC, 0x7F, DC0DAC_DS,
- 700, 1500, 12500, 0x41, 4),
+ 700, 1500, 12500, 4),
RC5T583_REG(DC1, DC1CTL, 0, DC1CTL, 1, DC1DAC, 0x7F, DC1DAC_DS,
- 700, 1500, 12500, 0x41, 14),
+ 700, 1500, 12500, 14),
RC5T583_REG(DC2, DC2CTL, 0, DC2CTL, 1, DC2DAC, 0x7F, DC2DAC_DS,
- 900, 2400, 12500, 0x79, 14),
+ 900, 2400, 12500, 14),
RC5T583_REG(DC3, DC3CTL, 0, DC3CTL, 1, DC3DAC, 0x7F, DC3DAC_DS,
- 900, 2400, 12500, 0x79, 14),
+ 900, 2400, 12500, 14),
RC5T583_REG(LDO0, LDOEN2, 0, LDODIS2, 0, LDO0DAC, 0x7F, LDO0DAC_DS,
- 900, 3400, 25000, 0x65, 160),
+ 900, 3400, 25000, 160),
RC5T583_REG(LDO1, LDOEN2, 1, LDODIS2, 1, LDO1DAC, 0x7F, LDO1DAC_DS,
- 900, 3400, 25000, 0x65, 160),
+ 900, 3400, 25000, 160),
RC5T583_REG(LDO2, LDOEN2, 2, LDODIS2, 2, LDO2DAC, 0x7F, LDO2DAC_DS,
- 900, 3400, 25000, 0x65, 160),
+ 900, 3400, 25000, 160),
RC5T583_REG(LDO3, LDOEN2, 3, LDODIS2, 3, LDO3DAC, 0x7F, LDO3DAC_DS,
- 900, 3400, 25000, 0x65, 160),
+ 900, 3400, 25000, 160),
RC5T583_REG(LDO4, LDOEN2, 4, LDODIS2, 4, LDO4DAC, 0x3F, LDO4DAC_DS,
- 750, 1500, 12500, 0x3D, 133),
+ 750, 1500, 12500, 133),
RC5T583_REG(LDO5, LDOEN2, 5, LDODIS2, 5, LDO5DAC, 0x7F, LDO5DAC_DS,
- 900, 3400, 25000, 0x65, 267),
+ 900, 3400, 25000, 267),
RC5T583_REG(LDO6, LDOEN2, 6, LDODIS2, 6, LDO6DAC, 0x7F, LDO6DAC_DS,
- 900, 3400, 25000, 0x65, 133),
+ 900, 3400, 25000, 133),
RC5T583_REG(LDO7, LDOEN2, 7, LDODIS2, 7, LDO7DAC, 0x7F, LDO7DAC_DS,
- 900, 3400, 25000, 0x65, 233),
+ 900, 3400, 25000, 233),
RC5T583_REG(LDO8, LDOEN1, 0, LDODIS1, 0, LDO8DAC, 0x7F, LDO8DAC_DS,
- 900, 3400, 25000, 0x65, 233),
+ 900, 3400, 25000, 233),
RC5T583_REG(LDO9, LDOEN1, 1, LDODIS1, 1, LDO9DAC, 0x7F, LDO9DAC_DS,
- 900, 3400, 25000, 0x65, 133),
+ 900, 3400, 25000, 133),
};
static int __devinit rc5t583_regulator_probe(struct platform_device *pdev)
--
1.7.5.4
next reply other threads:[~2012-04-05 6:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-05 6:04 Axel Lin [this message]
2012-04-05 6:07 ` [PATCH RFT 2/2] regulator: Convert rc5t583 to set_voltage Axel Lin
2012-04-05 7:01 ` Laxman Dewangan
2012-04-05 9:47 ` Mark Brown
2012-04-06 17:32 ` Mark Brown
2012-04-05 6:58 ` [PATCH 1/2] regulator: rc5t583: Remove nsteps from struct rc5t583_regulator_info Laxman Dewangan
2012-04-05 10:07 ` Mark Brown
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