mfd: tps65217: Set PMIC to shutdown on PWR_EN toggle
Set tps65217 PMIC status to OFF if power enable toggle is supported.
By setting this bit to 1 to enter PMIC to OFF state when PWR_EN pin
is pulled low. Also adds a DT flag to specify that device pmic
supports shutdown control or not.
Signed-off-by: Colin Foe-Parker <colin.foeparker@logicpd.com>
[anilkumar@ti.com: move the additions to tps65217 MFD driver]
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
index 3fb32e6..c7f17d8 100644
--- a/drivers/mfd/tps65217.c
+++ b/drivers/mfd/tps65217.c
@@ -160,6 +160,7 @@
unsigned int version;
unsigned int chip_id = ids->driver_data;
const struct of_device_id *match;
+ bool status_off = false;
int ret;
if (client->dev.of_node) {
@@ -170,6 +171,8 @@
return -EINVAL;
}
chip_id = (unsigned int)match->data;
+ status_off = of_property_read_bool(client->dev.of_node,
+ "ti,pmic-shutdown-controller");
}
if (!chip_id) {
@@ -207,6 +210,15 @@
return ret;
}
+ /* Set the PMIC to shutdown on PWR_EN toggle */
+ if (status_off) {
+ ret = tps65217_set_bits(tps, TPS65217_REG_STATUS,
+ TPS65217_STATUS_OFF, TPS65217_STATUS_OFF,
+ TPS65217_PROTECT_NONE);
+ if (ret)
+ dev_warn(tps->dev, "unable to set the status OFF\n");
+ }
+
dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n",
(version & TPS65217_CHIPID_CHIP_MASK) >> 4,
version & TPS65217_CHIPID_REV_MASK);