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| author | Saquib Herman <saquib@ti.com> | 2011-04-01 10:22:45 +0530 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2011-05-27 10:34:36 +0100 |
| commit | 9a0244ad719258b0ae6064ad7da937cddcb109e0 (patch) | |
| tree | 9167b909da9d98cc576a2443be74a49739b0f316 /drivers/regulator/twl-regulator.c | |
| parent | b2456779f39e33ad63a63aabe9af77d1113f106e (diff) | |
| download | linux-9a0244ad719258b0ae6064ad7da937cddcb109e0.tar.gz linux-9a0244ad719258b0ae6064ad7da937cddcb109e0.tar.bz2 linux-9a0244ad719258b0ae6064ad7da937cddcb109e0.zip | |
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)>
Diffstat (limited to 'drivers/regulator/twl-regulator.c')
| -rw-r--r-- | drivers/regulator/twl-regulator.c | 44 |
1 files changed, 35 insertions, 9 deletions
diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index cae168f0f7b3..2d4218ac8535 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -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, }; /*----------------------------------------------------------------------*/ |