[PATCH v2 1/4] mfd: tps65217: Set PMIC to shutdowm on PWR_EN toggle
From: AnilKumar Ch <hidden>
Date: 2012-11-16 12:08:23
Also in:
linux-arm-kernel, linux-omap
Subsystem:
multifunction devices (mfd), omap2+ support, open firmware and flattened device tree bindings, the rest, voltage and current regulator framework · Maintainers:
Lee Jones, Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Roger Quadros, Tony Lindgren, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Liam Girdwood, Mark Brown
Possibly related (same subject, not in this thread)
- 2012-11-19 · Re: [PATCH v2 1/4] mfd: tps65217: Set PMIC to shutdowm on PWR_EN toggle · Peter Korsgaard <jacmet@sunsite.dk>
- 2012-11-19 · RE: [PATCH v2 1/4] mfd: tps65217: Set PMIC to shutdowm on PWR_EN toggle · AnilKumar, Chimata <hidden>
- 2012-11-19 · Re: [PATCH v2 1/4] mfd: tps65217: Set PMIC to shutdowm on PWR_EN toggle · Peter Korsgaard <jacmet@sunsite.dk>
- 2012-11-16 · Re: [PATCH v2 1/4] mfd: tps65217: Set PMIC to shutdowm on PWR_EN toggle · Kevin Hilman <hidden>
From: Colin Foe-Parker <redacted> Set tps65217 PMIC status to OFF if power enable toggle is supported. Also adds platform data flag, which should be passed from board init data. Signed-off-by: Colin Foe-Parker <redacted> [anilkumar-l0cyMroinI0@public.gmane.org: move the additions to tps65217 MFD driver] Signed-off-by: AnilKumar Ch <redacted> --- .../devicetree/bindings/regulator/tps65217.txt | 4 ++++ drivers/mfd/tps65217.c | 12 ++++++++++++ 2 files changed, 16 insertions(+)
diff --git a/Documentation/devicetree/bindings/regulator/tps65217.txt b/Documentation/devicetree/bindings/regulator/tps65217.txt
index d316fb8..4f05d20 100644
--- a/Documentation/devicetree/bindings/regulator/tps65217.txt
+++ b/Documentation/devicetree/bindings/regulator/tps65217.txt@@ -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 {
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 @@ 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);
--
1.7.9.5