diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-07-26 15:21:09 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-07-30 21:10:53 -0700 |
| commit | 9913737d7ce69f3bd68e37e0ad22a9c2c5c50979 (patch) | |
| tree | 2684956b83d42410b6042c391befbd6bfb1485c3 /arch | |
| parent | 9c74bdcc6e4e0ac478f4766461ed4ed87f8ba07d (diff) | |
ARM: tegra: dvfs: enable regulator before using it
The dvfs system require the regulator for regulating
the voltage. The regulator should be enable before
using it to make sure the reference count enabling rail
of that rail should be properly counted.
Change-Id: Ib8b673ecb7939ac80f46bdf90ffec27b8f62df6b
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/118598
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/dvfs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/dvfs.c b/arch/arm/mach-tegra/dvfs.c index 43f42cdf527d..c36b81d2c402 100644 --- a/arch/arm/mach-tegra/dvfs.c +++ b/arch/arm/mach-tegra/dvfs.c @@ -309,6 +309,13 @@ static int dvfs_rail_connect_to_regulator(struct dvfs_rail *rail) rail->reg = reg; } + v = regulator_enable(rail->reg); + if (v < 0) { + pr_err("tegra_dvfs: failed on enabling regulator %s\n, err %d", + rail->reg_id, v); + return v; + } + v = regulator_get_voltage(rail->reg); if (v < 0) { pr_err("tegra_dvfs: failed initial get %s voltage\n", |