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authorSamuel Ortiz <sameo@linux.intel.com>2013-08-21 14:08:14 +0400
committerSamuel Ortiz <sameo@linux.intel.com>2013-08-21 14:08:14 +0400
commit828fa1e60117535d9b1e1b09444842ae66e8424d (patch)
tree281f5bff9a12c760ca947a98569df63c8ca85909 /drivers/mfd/palmas.c
parent09fd86780bb4603df1886e17127f5beb97f70ffb (diff)
parent8a105ca202b1a1061a24f1e980206cd2808e2f8b (diff)
downloadlinux-828fa1e60117535d9b1e1b09444842ae66e8424d.tar.xz
Merge tag 'mfd-lee-3.12-1' of git://git.linaro.org/people/ljones/mfd
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/palmas.c')
-rw-r--r--drivers/mfd/palmas.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index e71fa289eb01..135afabe4ae2 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -326,6 +326,32 @@ static void palmas_dt_to_pdata(struct i2c_client *i2c,
PALMAS_POWER_CTRL_ENABLE2_MASK;
if (i2c->irq)
palmas_set_pdata_irq_flag(i2c, pdata);
+
+ pdata->pm_off = of_property_read_bool(node,
+ "ti,system-power-controller");
+}
+
+static struct palmas *palmas_dev;
+static void palmas_power_off(void)
+{
+ unsigned int addr;
+ int ret, slave;
+
+ if (!palmas_dev)
+ return;
+
+ slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
+ addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
+
+ ret = regmap_update_bits(
+ palmas_dev->regmap[slave],
+ addr,
+ PALMAS_DEV_CTRL_DEV_ON,
+ 0);
+
+ if (ret)
+ pr_err("%s: Unable to write to DEV_CTRL_DEV_ON: %d\n",
+ __func__, ret);
}
static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
@@ -520,10 +546,13 @@ no_irq:
*/
if (node) {
ret = of_platform_populate(node, NULL, NULL, &i2c->dev);
- if (ret < 0)
+ if (ret < 0) {
goto err_irq;
- else
+ } else if (pdata->pm_off && !pm_power_off) {
+ palmas_dev = palmas;
+ pm_power_off = palmas_power_off;
return ret;
+ }
}
return ret;