diff options
| author | djung <djung@nvidia.com> | 2014-06-06 16:05:18 -0700 |
|---|---|---|
| committer | Harry Hong <hhong@nvidia.com> | 2014-06-23 17:55:01 -0700 |
| commit | 64650c054b2f3e0473422c92eec7d1da5d4896f6 (patch) | |
| tree | fddc5a0635b6d8ffb78ab287096106ed9c59a018 | |
| parent | 994b8fa63b065cf6073c499d654a505f4b7edc74 (diff) | |
input: touch: maxim: update power sequence
Updated touch power sequence to stay within tolerances.
Bug 15221534
Change-Id: Ic35bf958c5e93a1a8a454985be357eb3a8e866af
Signed-off-by: djung <djung@nvidia.com>
Reviewed-on: http://git-master/r/426695
Reviewed-by: Harry Hong <hhong@nvidia.com>
Tested-by: Harry Hong <hhong@nvidia.com>
| -rw-r--r-- | drivers/input/touchscreen/maxim_sti.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/maxim_sti.c b/drivers/input/touchscreen/maxim_sti.c index a70c7f53fab2..ac0ddf959880 100644 --- a/drivers/input/touchscreen/maxim_sti.c +++ b/drivers/input/touchscreen/maxim_sti.c @@ -695,13 +695,14 @@ static int regulator_control(struct dev_data *dd, bool on) return 0; if (on) { + usleep_range(4000, 4800); ret = regulator_enable(dd->reg_avdd); if (ret < 0) { ERROR("Failed to enable regulator avdd: %d", ret); return ret; } - usleep_range(8000, 8800); + usleep_range(100, 300); ret = regulator_enable(dd->reg_dvdd); if (ret < 0) { ERROR("Failed to enable regulator dvdd: %d", ret); @@ -721,6 +722,8 @@ static int regulator_control(struct dev_data *dd, bool on) return ret; } + usleep_range(3000, 3800); + if (regulator_is_enabled(dd->reg_avdd)) ret = regulator_disable(dd->reg_avdd); if (ret < 0) { |