diff options
| author | Prashant Gaikwad <pgaikwad@nvidia.com> | 2011-03-10 16:23:37 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-03-10 21:42:10 -0800 |
| commit | 8bb77ffa20e159e611ac3c629cce6fdc3db26f00 (patch) | |
| tree | 0b933d4997f5d38b1ce2217eb72ad9c1bd4c0a71 /drivers | |
| parent | a8dbfda58a6980976de60ba46f22a5f0b2ecab5f (diff) | |
mfd: max8907c: Add api to power off max8907c
Add an api to power off max8907c by setting power off bit in RESET_CNFG reg.
Bug 799957
Bug 800602 (Cold boot)
Change-Id: Ie0206d684a86fecc75273c1d3b087bb2d47b4c56
Reviewed-on: http://git-master/r/22385
Tested-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mfd/max8907c.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mfd/max8907c.c b/drivers/mfd/max8907c.c index 8475c4be50e9..8bf47822f5c3 100644 --- a/drivers/mfd/max8907c.c +++ b/drivers/mfd/max8907c.c @@ -151,6 +151,16 @@ int max8907c_set_bits(struct i2c_client *i2c, u8 reg, u8 mask, u8 val) } EXPORT_SYMBOL_GPL(max8907c_set_bits); +static struct i2c_client *max8907c_client = NULL; +int max8907c_power_off(void) +{ + if (!max8907c_client) + return -EINVAL; + + return max8907c_set_bits(max8907c_client, MAX8907C_REG_RESET_CNFG, + MAX8907C_MASK_POWER_OFF, 0x40); +} + static int max8907c_remove_subdev(struct device *dev, void *unused) { platform_device_unregister(to_platform_device(dev)); @@ -222,6 +232,8 @@ static int max8907c_i2c_probe(struct i2c_client *i2c, return ret; } + max8907c_client = i2c; + max8907c_irq_init(max8907c, i2c->irq, pdata->irq_base); ret = max8097c_add_subdevs(max8907c, pdata); |