diff options
| author | Mallikarjun Kasoju <mkasoju@nvidia.com> | 2012-07-17 16:04:01 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-07-18 14:39:33 -0700 |
| commit | 9d4eeb8ee6eba84d932ab05b7eb6a5b4ddedb288 (patch) | |
| tree | fbfa4e31779d47786e3a636b842bedecaee250e7 /drivers/regulator | |
| parent | 79cb5050b1bfbc5a55a53a33d41f6a392befddf5 (diff) | |
regulator: tps80031: adjust tolerance if req minuV > dev minuV
Adjust the tolerance voltage only when requested minimum voltage is
more than the rail's minimum voltage.
bug 997415
Change-Id: Ie139c657f8550adba07b74a0cd5d69e2b53d62c2
Signed-off-by: Mallikarjun Kasoju <mkasoju@nvidia.com>
Reviewed-on: http://git-master/r/116405
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/tps80031-regulator.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/regulator/tps80031-regulator.c b/drivers/regulator/tps80031-regulator.c index efc608c936ea..33d4b62e58da 100644 --- a/drivers/regulator/tps80031-regulator.c +++ b/drivers/regulator/tps80031-regulator.c @@ -297,10 +297,11 @@ static int __tps80031_dcdc_set_voltage(struct device *parent, int vsel = 0; int ret; - min_uV = min_uV - ri->tolerance_uv; - switch (ri->flags) { case 0: + if (min_uV >= (607700 + ri->tolerance_uv)) + min_uV = min_uV - ri->tolerance_uv; + if (min_uV == 0) vsel = 0; else if ((min_uV >= 607700) && (min_uV <= 1300000)) { @@ -328,6 +329,8 @@ static int __tps80031_dcdc_set_voltage(struct device *parent, break; case DCDC_OFFSET_EN: + if (min_uV >= (700000 + ri->tolerance_uv)) + min_uV = min_uV - ri->tolerance_uv; if (min_uV == 0) vsel = 0; else if ((min_uV >= 700000) && (min_uV <= 1420000)) { @@ -355,6 +358,8 @@ static int __tps80031_dcdc_set_voltage(struct device *parent, break; case DCDC_EXTENDED_EN: + if (min_uV >= (1852000 + ri->tolerance_uv)) + min_uV = min_uV - ri->tolerance_uv; if (min_uV == 0) vsel = 0; else if ((min_uV >= 1852000) && (max_uV <= 4013600)) { @@ -366,6 +371,8 @@ static int __tps80031_dcdc_set_voltage(struct device *parent, break; case DCDC_OFFSET_EN|DCDC_EXTENDED_EN: + if (min_uV >= (2161000 + ri->tolerance_uv)) + min_uV = min_uV - ri->tolerance_uv; if (min_uV == 0) vsel = 0; else if ((min_uV >= 2161000) && (max_uV <= 4321000)) { |