| Message ID | 1353067706-29491-2-git-send-email-anilkumar@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
AnilKumar Ch <anilkumar@ti.com> writes: > From: Colin Foe-Parker <colin.foeparker@logicpd.com> > > 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. nit: changelog mentions platform_data, but the code is using DT. Kevin > 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> > --- > .../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);
>>>>> "AnilKumar" == AnilKumar Ch <anilkumar@ti.com> writes:
s/shutdowm/shutdown/ in the subject.
AnilKumar> From: Colin Foe-Parker <colin.foeparker@logicpd.com>
AnilKumar> Set tps65217 PMIC status to OFF if power enable toggle is
AnilKumar> supported. Also adds platform data flag, which should be
AnilKumar> passed from board init data.
You're adding dt binding, not platform data.
AnilKumar> Signed-off-by: Colin Foe-Parker <colin.foeparker@logicpd.com>
AnilKumar> [anilkumar@ti.com: move the additions to tps65217 MFD driver]
AnilKumar> Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
AnilKumar> ---
AnilKumar> .../devicetree/bindings/regulator/tps65217.txt | 4 ++++
AnilKumar> drivers/mfd/tps65217.c | 12 ++++++++++++
AnilKumar> 2 files changed, 16 insertions(+)
AnilKumar> diff --git a/Documentation/devicetree/bindings/regulator/tps65217.txt b/Documentation/devicetree/bindings/regulator/tps65217.txt
AnilKumar> index d316fb8..4f05d20 100644
AnilKumar> --- a/Documentation/devicetree/bindings/regulator/tps65217.txt
AnilKumar> +++ b/Documentation/devicetree/bindings/regulator/tps65217.txt
AnilKumar> @@ -11,6 +11,9 @@ Required properties:
AnilKumar> using the standard binding for regulators found at
AnilKumar> Documentation/devicetree/bindings/regulator/regulator.txt.
AnilKumar> +Optional properties:
AnilKumar> +- ti,pmic-shutdown-controller: Telling the PMIC to shutdown on PWR_EN toggle.
Ehh, I don't know the tps65217 particular well, but according to the
datasheet the REG_STATUS_OFF bit enables/disables the PB_IN pin, not
PWR_EN. It's also not only about powering down but also powering up
again.
I don't feel this property name is very clear. Perhaps something about
power button or push button monitor as it is called in the datasheet?
On Mon, Nov 19, 2012 at 16:20:27, Peter Korsgaard wrote: > >>>>> "AnilKumar" == AnilKumar Ch <anilkumar@ti.com> writes: > > s/shutdowm/shutdown/ in the subject. I will change > > AnilKumar> From: Colin Foe-Parker <colin.foeparker@logicpd.com> > AnilKumar> Set tps65217 PMIC status to OFF if power enable toggle is > AnilKumar> supported. Also adds platform data flag, which should be > AnilKumar> passed from board init data. > > You're adding dt binding, not platform data. I will change > > AnilKumar> Signed-off-by: Colin Foe-Parker <colin.foeparker@logicpd.com> > AnilKumar> [anilkumar@ti.com: move the additions to tps65217 MFD driver] > AnilKumar> Signed-off-by: AnilKumar Ch <anilkumar@ti.com> > AnilKumar> --- > AnilKumar> .../devicetree/bindings/regulator/tps65217.txt | 4 ++++ > AnilKumar> drivers/mfd/tps65217.c | 12 ++++++++++++ > AnilKumar> 2 files changed, 16 insertions(+) > > AnilKumar> diff --git a/Documentation/devicetree/bindings/regulator/tps65217.txt b/Documentation/devicetree/bindings/regulator/tps65217.txt > AnilKumar> index d316fb8..4f05d20 100644 > AnilKumar> --- a/Documentation/devicetree/bindings/regulator/tps65217.txt > AnilKumar> +++ b/Documentation/devicetree/bindings/regulator/tps65217.txt > AnilKumar> @@ -11,6 +11,9 @@ Required properties: > AnilKumar> using the standard binding for regulators found at > AnilKumar> Documentation/devicetree/bindings/regulator/regulator.txt. > > AnilKumar> +Optional properties: > AnilKumar> +- ti,pmic-shutdown-controller: Telling the PMIC to shutdown on PWR_EN toggle. > > Ehh, I don't know the tps65217 particular well, but according to the > datasheet the REG_STATUS_OFF bit enables/disables the PB_IN pin, not > PWR_EN. It's also not only about powering down but also powering up > again. > > I don't feel this property name is very clear. Perhaps something about > power button or push button monitor as it is called in the datasheet? Here I am writing "TPS65217_STATUS_OFF" to status register, BIT(7). Description of this bit field: "OFF bit. Set this bit to 1 to enter OFF state when PWR_EN pin is pulled low. Bit is automatically reset to 0." PWR_EN pin pull-down is doing by RTC module. Regards AnilKumar
>>>>> "A" == AnilKumar, Chimata <anilkumar@ti.com> writes: Hi, >> I don't feel this property name is very clear. Perhaps something about >> power button or push button monitor as it is called in the datasheet? A> Here I am writing "TPS65217_STATUS_OFF" to status register, BIT(7). A> Description of this bit field: "OFF bit. Set this bit to 1 to enter A> OFF state when PWR_EN pin is pulled low. Bit is automatically reset A> to 0." A> PWR_EN pin pull-down is doing by RTC module. Ahh yes, sorry -ENOCOFFEE. I somehow misread the datasheet and looked at bit 0 instead.
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);