From: AnilKumar Ch <anilkumar-l0cyMroinI0@public.gmane.org>
To: a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org,
sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org,
tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org
Cc: Colin Foe-Parker
<colin.foeparker-L+YfUVVR8+RBDgjK7y7TUQ@public.gmane.org>,
rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH v3 2/5] mfd: tps65217: Set PMIC to shutdown on PWR_EN toggle
Date: Tue, 20 Nov 2012 15:18:44 +0530 [thread overview]
Message-ID: <1353404927-14412-3-git-send-email-anilkumar@ti.com> (raw)
In-Reply-To: <1353404927-14412-1-git-send-email-anilkumar-l0cyMroinI0@public.gmane.org>
From: Colin Foe-Parker <colin.foeparker-L+YfUVVR8+RBDgjK7y7TUQ@public.gmane.org>
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-L+YfUVVR8+RBDgjK7y7TUQ@public.gmane.org>
[anilkumar-l0cyMroinI0@public.gmane.org: move the additions to tps65217 MFD driver]
Signed-off-by: AnilKumar Ch <anilkumar-l0cyMroinI0@public.gmane.org>
---
.../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
next prev parent reply other threads:[~2012-11-20 9:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-20 9:48 [PATCH v3 0/5] pm: Add power off control AnilKumar Ch
[not found] ` <1353404927-14412-1-git-send-email-anilkumar-l0cyMroinI0@public.gmane.org>
2012-11-20 9:48 ` [PATCH v3 1/5] rtc: OMAP: Add system pm_power_off to rtc driver AnilKumar Ch
[not found] ` <1353404927-14412-2-git-send-email-anilkumar-l0cyMroinI0@public.gmane.org>
2012-11-22 5:47 ` AnilKumar, Chimata
[not found] ` <331ABD5ECB02734CA317220B2BBEABC13EA78AA0-Er742YJ7I/eIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2012-11-26 5:19 ` Bedia, Vaibhav
2012-11-27 23:42 ` [rtc-linux] " Andrew Morton
[not found] ` <20121127154239.0efad6d5.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2012-11-28 11:12 ` Russell King - ARM Linux
[not found] ` <20121128111226.GX3332-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2012-12-10 6:50 ` AnilKumar, Chimata
2012-12-11 9:00 ` Grant Likely
2012-11-20 9:48 ` AnilKumar Ch [this message]
2012-11-21 13:47 ` [PATCH v3 2/5] mfd: tps65217: Set PMIC to shutdown on PWR_EN toggle Samuel Ortiz
2012-11-22 5:46 ` AnilKumar, Chimata
2012-11-20 9:48 ` [PATCH v3 3/5] ARM: dts: AM33XX: Set pmic-shutdown-controller for BeagleBone AnilKumar Ch
[not found] ` <1353404927-14412-4-git-send-email-anilkumar-l0cyMroinI0@public.gmane.org>
2012-11-22 5:47 ` AnilKumar, Chimata
2012-11-20 9:48 ` [PATCH v3 4/5] ARM: dts: AM33XX: Enable system power off control in am335x-bone AnilKumar Ch
2012-11-20 9:48 ` [PATCH v3 5/5] ARM: OMAP2+: omap2plus_defconfig: Enable RTC support AnilKumar Ch
2012-11-23 16:55 ` Igor Mazanov
2012-11-26 5:54 ` AnilKumar, Chimata
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