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regulator: twl: add twl6030 get_status 

Current get_status logic does not support 6030 get_status.
The logic for 4030 is not reusable for 6030 as the status
check for 6030 now depends on the new CFG_STATE register.
We hence rename the old get_status as being specific to
4030 and remove the redundant check for the same.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Saquib Herman <saquib@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@vega.(none)>
This commit is contained in:
Saquib Herman 2011-04-01 10:22:45 +05:30 committed by Liam Girdwood
parent b2456779f3
commit 9a0244ad71
1 changed files with 35 additions and 9 deletions
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44
drivers/regulator/twl-regulator.c
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@ -79,6 +79,8 @@ struct twlreg_info {
/* TWL6030 LDO register values for CFG_STATE */
#define TWL6030_CFG_STATE_OFF 0x00
#define TWL6030_CFG_STATE_ON 0x01
#define TWL6030_CFG_STATE_OFF2 0x02
#define TWL6030_CFG_STATE_SLEEP 0x03
#define TWL6030_CFG_STATE_GRP_SHIFT 5
#define TWL6030_CFG_STATE_APP_SHIFT 2
#define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
@ -217,13 +219,10 @@ static int twlreg_disable(struct regulator_dev *rdev)
return ret;
}
static int twlreg_get_status(struct regulator_dev *rdev)
static int twl4030reg_get_status(struct regulator_dev *rdev)
{
int state = twlreg_grp(rdev);
if (twl_class_is_6030())
return 0; /* FIXME return for 6030 regulator */
if (state < 0)
return state;
state &= 0x0f;
@ -236,6 +235,33 @@ static int twlreg_get_status(struct regulator_dev *rdev)
: REGULATOR_STATUS_STANDBY;
}
static int twl6030reg_get_status(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int val;
val = twlreg_grp(rdev);
if (val < 0)
return val;
val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
switch (TWL6030_CFG_STATE_APP(val)) {
case TWL6030_CFG_STATE_ON:
return REGULATOR_STATUS_NORMAL;
case TWL6030_CFG_STATE_SLEEP:
return REGULATOR_STATUS_STANDBY;
case TWL6030_CFG_STATE_OFF:
case TWL6030_CFG_STATE_OFF2:
default:
break;
}
return REGULATOR_STATUS_OFF;
}
static int twlreg_set_mode(struct regulator_dev *rdev, unsigned mode)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
@ -427,7 +453,7 @@ static struct regulator_ops twl4030ldo_ops = {
.set_mode = twlreg_set_mode,
.get_status = twlreg_get_status,
.get_status = twl4030reg_get_status,
};
static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
@ -485,7 +511,7 @@ static struct regulator_ops twl6030ldo_ops = {
.set_mode = twlreg_set_mode,
.get_status = twlreg_get_status,
.get_status = twl6030reg_get_status,
};
/*----------------------------------------------------------------------*/
@ -518,7 +544,7 @@ static struct regulator_ops twl4030fixed_ops = {
.set_mode = twlreg_set_mode,
.get_status = twlreg_get_status,
.get_status = twl4030reg_get_status,
};
static struct regulator_ops twl6030fixed_ops = {
@ -532,14 +558,14 @@ static struct regulator_ops twl6030fixed_ops = {
.set_mode = twlreg_set_mode,
.get_status = twlreg_get_status,
.get_status = twl6030reg_get_status,
};
static struct regulator_ops twl6030_fixed_resource = {
.enable = twlreg_enable,
.disable = twlreg_disable,
.is_enabled = twl6030reg_is_enabled,
.get_status = twlreg_get_status,
.get_status = twl6030reg_get_status,
};
/*----------------------------------------------------------------------*/