Commit eb433dad authored by Colin Foe-Parker's avatar Colin Foe-Parker Committed by Samuel Ortiz
Browse files

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: default avatarColin Foe-Parker <colin.foeparker@logicpd.com>
[anilkumar@ti.com: move the additions to tps65217 MFD driver]
Signed-off-by: default avatarAnilKumar Ch <anilkumar@ti.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 433e075c

Documentation/devicetree/bindings/regulator/tps65217.txt

+4 −0
Original line number Diff line number Diff line
@@ -11,6 +11,9 @@ Required properties: 
  using the standard binding for regulators found at

  Documentation/devicetree/bindings/regulator/regulator.txt.



Optional properties:

- ti,pmic-shutdown-controller: Telling the PMIC to shutdown on PWR_EN toggle.



  The valid names for regulators are:

  tps65217: dcdc1, dcdc2, dcdc3, ldo1, ldo2, ldo3 and ldo4
@@ -20,6 +23,7 @@ Example: 


	tps: tps@24 {

		compatible = "ti,tps65217";

		ti,pmic-shutdown-controller;



		regulators {

			dcdc1_reg: dcdc1 {

drivers/mfd/tps65217.c

+12 −0
Original line number Diff line number Diff line
@@ -160,6 +160,7 @@ static int __devinit tps65217_probe(struct i2c_client *client, 
	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 @@ static int __devinit tps65217_probe(struct i2c_client *client, 
			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 @@ static int __devinit tps65217_probe(struct i2c_client *client, 
		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);

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