[PATCH v2 0/8] da9055: Driver initialisation fixes, add DT support

[PATCH v2 0/8] da9055: Driver initialisation fixes, add DT support

[Adam Thomson]

This patch series provides the following updates for DA9055 drivers:

 - Fixes an issue with da9055 driver initialisation (conflicting device ids) of
   PMIC (MFD) and CODEC drivers which means they cannot be used together on
   the same I2C bus.
 - Add initial DT support for DA9055 related drivers, including binding
   documentation.
 - Remove use of regmap_irq_get_virq() in driver probes which was conflicting
   with use of platform_get_irq_byname(). platform_get_irq_byname() already
   returns the VIRQ number due to MFD core translation so using
   regmap_irq_get_virq() on that returned value results in an incorrect IRQ
   being requested. The driver probes then fail because of this.

[Changes since v1]:

 - Regulator:
    * fixed coding style issue (lack of braces for if,else statement)
    * removal of 'ifdef' around DT related headers
    * Use of 'of_regulator_match()' for retrieving regulator related info
      from DT nodes.

 - General:
    * Instead of removing platform_get_irq_byname() usage and device resources
      to fix IRQ conflict in driver probes, now removed 'regmap_irq_get_virq()'
      as advised. This has been tested on target for both DT and non-DT setups
      and works as expected.

Adam Thomson (8):
  ASoC: da9055: Fix device registration of PMIC and CODEC devices
  ASoC: da9055: Add DT support for CODEC
  mfd: da9055: Add DT support for PMIC
  regulator: da9055: Add DT support
  onkey: da9055: Remove use of regmap_irq_get_virq()
  hwmon: da9055: Remove use of regmap_irq_get_virq()
  rtc: da9055: Remove use of regmap_irq_get_virq()
  regulator: da9055: Remove use of regmap_irq_get_virq()

 Documentation/devicetree/bindings/mfd/da9055.txt   |   73 ++++++++++++++++++++
 Documentation/devicetree/bindings/sound/da9055.txt |   22 ++++++
 drivers/hwmon/da9055-hwmon.c                       |    4 -
 drivers/input/misc/da9055_onkey.c                  |    1 -
 drivers/mfd/da9055-i2c.c                           |   20 +++++-
 drivers/regulator/da9055-regulator.c               |   73 ++++++++++++++++++--
 drivers/rtc/rtc-da9055.c                           |    4 +-
 sound/soc/codecs/da9055.c                          |   19 +++++-
 8 files changed, 201 insertions(+), 15 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/da9055.txt
 create mode 100644 Documentation/devicetree/bindings/sound/da9055.txt

[PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Adam Thomson]

Currently the I2C device Ids conflict for the MFD and CODEC so
cannot be both instantiated on one platform. This patch updates
the Ids and names to make them unique from each other.

It should be noted that the I2C addresses for both PMIC and CODEC
are modifiable so instantiation of the two are kept as separate
devices, rather than instantiating the CODEC from the MFD code.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Acked-by: Mark Brown <broonie@linaro.org>
---
 drivers/mfd/da9055-i2c.c  |   12 ++++++++++--
 sound/soc/codecs/da9055.c |   11 +++++++++--
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/da9055-i2c.c b/drivers/mfd/da9055-i2c.c
index 13af7e5..8103e43 100644
--- a/drivers/mfd/da9055-i2c.c
+++ b/drivers/mfd/da9055-i2c.c
@@ -53,17 +53,25 @@ static int da9055_i2c_remove(struct i2c_client *i2c)
 	return 0;
 }

+/*
+ * DO NOT change the device Ids. The naming is intentionally specific as both
+ * the PMIC and CODEC parts of this chip are instantiated separately as I2C
+ * devices (both have configurable I2C addresses, and are to all intents and
+ * purposes separate). As a result there are specific DA9055 ids for PMIC
+ * and CODEC, which must be different to operate together.
+ */
 static struct i2c_device_id da9055_i2c_id[] = {
-	{"da9055", 0},
+	{"da9055-pmic", 0},
 	{ }
 };
+MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);

 static struct i2c_driver da9055_i2c_driver = {
 	.probe = da9055_i2c_probe,
 	.remove = da9055_i2c_remove,
 	.id_table = da9055_i2c_id,
 	.driver = {
-		.name = "da9055",
+		.name = "da9055-pmic",
 		.owner = THIS_MODULE,
 	},
 };
diff --git a/sound/soc/codecs/da9055.c b/sound/soc/codecs/da9055.c
index 52b79a4..4228126 100644
--- a/sound/soc/codecs/da9055.c
+++ b/sound/soc/codecs/da9055.c
@@ -1523,8 +1523,15 @@ static int da9055_remove(struct i2c_client *client)
 	return 0;
 }

+/*
+ * DO NOT change the device Ids. The naming is intentionally specific as both
+ * the CODEC and PMIC parts of this chip are instantiated separately as I2C
+ * devices (both have configurable I2C addresses, and are to all intents and
+ * purposes separate). As a result there are specific DA9055 Ids for CODEC
+ * and PMIC, which must be different to operate together.
+ */
 static const struct i2c_device_id da9055_i2c_id[] = {
-	{ "da9055", 0 },
+	{ "da9055-codec", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
@@ -1532,7 +1539,7 @@ MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
 /* I2C codec control layer */
 static struct i2c_driver da9055_i2c_driver = {
 	.driver = {
-		.name = "da9055",
+		.name = "da9055-codec",
 		.owner = THIS_MODULE,
 	},
 	.probe		= da9055_i2c_probe,
--
1.7.0.4

Re: [PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Lee Jones]

> Currently the I2C device Ids conflict for the MFD and CODEC so
> cannot be both instantiated on one platform. This patch updates
> the Ids and names to make them unique from each other.
> 
> It should be noted that the I2C addresses for both PMIC and CODEC
> are modifiable so instantiation of the two are kept as separate
> devices, rather than instantiating the CODEC from the MFD code.
> 
> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>
> Acked-by: Mark Brown <broonie-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---
>  drivers/mfd/da9055-i2c.c  |   12 ++++++++++--
>  sound/soc/codecs/da9055.c |   11 +++++++++--
>  2 files changed, 19 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mfd/da9055-i2c.c b/drivers/mfd/da9055-i2c.c
> index 13af7e5..8103e43 100644
> --- a/drivers/mfd/da9055-i2c.c
> +++ b/drivers/mfd/da9055-i2c.c
> @@ -53,17 +53,25 @@ static int da9055_i2c_remove(struct i2c_client *i2c)
>  	return 0;
>  }
> 
> +/*
> + * DO NOT change the device Ids. The naming is intentionally specific as both
> + * the PMIC and CODEC parts of this chip are instantiated separately as I2C
> + * devices (both have configurable I2C addresses, and are to all intents and
> + * purposes separate). As a result there are specific DA9055 ids for PMIC
> + * and CODEC, which must be different to operate together.
> + */

I'm not sure this comment is required.

Most device IDs are named this way.

>  static struct i2c_device_id da9055_i2c_id[] = {
> -	{"da9055", 0},
> +	{"da9055-pmic", 0},
>  	{ }
>  };
> +MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
> 
>  static struct i2c_driver da9055_i2c_driver = {
>  	.probe = da9055_i2c_probe,
>  	.remove = da9055_i2c_remove,
>  	.id_table = da9055_i2c_id,
>  	.driver = {
> -		.name = "da9055",
> +		.name = "da9055-pmic",
>  		.owner = THIS_MODULE,
>  	},
>  };
> diff --git a/sound/soc/codecs/da9055.c b/sound/soc/codecs/da9055.c
> index 52b79a4..4228126 100644
> --- a/sound/soc/codecs/da9055.c
> +++ b/sound/soc/codecs/da9055.c
> @@ -1523,8 +1523,15 @@ static int da9055_remove(struct i2c_client *client)
>  	return 0;
>  }
> 
> +/*
> + * DO NOT change the device Ids. The naming is intentionally specific as both
> + * the CODEC and PMIC parts of this chip are instantiated separately as I2C
> + * devices (both have configurable I2C addresses, and are to all intents and
> + * purposes separate). As a result there are specific DA9055 Ids for CODEC
> + * and PMIC, which must be different to operate together.
> + */

And here, really, no need.

>  static const struct i2c_device_id da9055_i2c_id[] = {
> -	{ "da9055", 0 },
> +	{ "da9055-codec", 0 },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
> @@ -1532,7 +1539,7 @@ MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
>  /* I2C codec control layer */
>  static struct i2c_driver da9055_i2c_driver = {
>  	.driver = {
> -		.name = "da9055",
> +		.name = "da9055-codec",
>  		.owner = THIS_MODULE,
>  	},
>  	.probe		= da9055_i2c_probe,

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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Re: [PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Mark Brown]

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On Fri, Feb 07, 2014 at 10:56:57AM +0000, Lee Jones wrote:

> > +/*
> > + * DO NOT change the device Ids. The naming is intentionally specific as both
> > + * the PMIC and CODEC parts of this chip are instantiated separately as I2C
> > + * devices (both have configurable I2C addresses, and are to all intents and
> > + * purposes separate). As a result there are specific DA9055 ids for PMIC
> > + * and CODEC, which must be different to operate together.
> > + */

> I'm not sure this comment is required.

They are, we've already had the suffixes removed from both PMIC and
CODEC drivers by people doing code review causing the drivers to fail to
load for several kernel releases (this should be tagged to stable as a
result).

> Most device IDs are named this way.

Having the suffix on a subdevice would be normal but it's not normal for
the primary I2C device, usually you can just put the part number in.

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Re: [PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Lee Jones]

> > > +/*
> > > + * DO NOT change the device Ids. The naming is intentionally specific as both
> > > + * the PMIC and CODEC parts of this chip are instantiated separately as I2C
> > > + * devices (both have configurable I2C addresses, and are to all intents and
> > > + * purposes separate). As a result there are specific DA9055 ids for PMIC
> > > + * and CODEC, which must be different to operate together.
> > > + */
> 
> > I'm not sure this comment is required.
> 
> They are, we've already had the suffixes removed from both PMIC and
> CODEC drivers by people doing code review causing the drivers to fail to
> load for several kernel releases (this should be tagged to stable as a
> result).
> 
> > Most device IDs are named this way.
> 
> Having the suffix on a subdevice would be normal but it's not normal for
> the primary I2C device, usually you can just put the part number in.

Okay, no problem then. Ignore my last.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Mark Brown]

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On Thu, Feb 06, 2014 at 06:03:07PM +0000, Adam Thomson wrote:
> Currently the I2C device Ids conflict for the MFD and CODEC so
> cannot be both instantiated on one platform. This patch updates
> the Ids and names to make them unique from each other.

Applied, thanks.

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Re: [PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Lee Jones]

> > Currently the I2C device Ids conflict for the MFD and CODEC so
> > cannot be both instantiated on one platform. This patch updates
> > the Ids and names to make them unique from each other.
> 
> Applied, thanks.

Actually, do you mind if I take this and apply it to an immutable?

I'd rather not be on the wrong end of some wrath, due to not playing
the game properly.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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Re: [PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Mark Brown]

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On Mon, Feb 10, 2014 at 01:59:39PM +0000, Lee Jones wrote:

> > Applied, thanks.

> Actually, do you mind if I take this and apply it to an immutable?

> I'd rather not be on the wrong end of some wrath, due to not playing
> the game properly.

OK, but it does need to go in as a fix targetted for stable.

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Re: [PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Lee Jones]

> > > Applied, thanks.
> 
> > Actually, do you mind if I take this and apply it to an immutable?
> 
> > I'd rather not be on the wrong end of some wrath, due to not playing
> > the game properly.
> 
> OK, but it does need to go in as a fix targetted for stable.

Ah, in which case there's no need, as I don't have anything in my
-fixes branch with touches this file. Simply take it in, no problem.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCH v2 1/8] ASoC: da9055: Fix device registration of PMIC and CODEC devices

[Mark Brown]

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On Mon, Feb 10, 2014 at 02:42:34PM +0000, Lee Jones wrote:

> > OK, but it does need to go in as a fix targetted for stable.

> Ah, in which case there's no need, as I don't have anything in my
> -fixes branch with touches this file. Simply take it in, no problem.

I'll do that - thanks for confirming.

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[PATCH v2 2/8] ASoC: da9055: Add DT support for CODEC

[Adam Thomson]

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
 Documentation/devicetree/bindings/sound/da9055.txt |   22 ++++++++++++++++++++
 sound/soc/codecs/da9055.c                          |    8 +++++++
 2 files changed, 30 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/da9055.txt

diff --git a/Documentation/devicetree/bindings/sound/da9055.txt b/Documentation/devicetree/bindings/sound/da9055.txt
new file mode 100644
index 0000000..ed1b7cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/da9055.txt
@@ -0,0 +1,22 @@
+* Dialog DA9055 Audio CODEC
+
+DA9055 provides Audio CODEC support (I2C only).
+
+The Audio CODEC device in DA9055 has it's own I2C address which is configurable,
+so the device is instantiated separately from the PMIC (MFD) device.
+
+For details on accompanying PMIC I2C device, see the following:
+Documentation/devicetree/bindings/mfd/da9055.txt
+
+Required properties:
+
+  - compatible: "dlg,da9055-codec"
+  - reg: Specifies the I2C slave address
+
+
+Example:
+
+	codec: da9055-codec@1a {
+		compatible = "dlg,da9055-codec";
+		reg = <0x1a>;
+	};
diff --git a/sound/soc/codecs/da9055.c b/sound/soc/codecs/da9055.c
index 4228126..be31f3c 100644
--- a/sound/soc/codecs/da9055.c
+++ b/sound/soc/codecs/da9055.c
@@ -18,6 +18,8 @@
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
@@ -1536,11 +1538,17 @@ static const struct i2c_device_id da9055_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);

+static const struct of_device_id da9055_of_match[] = {
+	{ .compatible = "dlg,da9055-codec", },
+	{ }
+};
+
 /* I2C codec control layer */
 static struct i2c_driver da9055_i2c_driver = {
 	.driver = {
 		.name = "da9055-codec",
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(da9055_of_match),
 	},
 	.probe		= da9055_i2c_probe,
 	.remove		= da9055_remove,
--
1.7.0.4

Re: [PATCH v2 2/8] ASoC: da9055: Add DT support for CODEC

[Mark Brown]

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On Thu, Feb 06, 2014 at 06:03:09PM +0000, Adam Thomson wrote:
> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>

This doesn't apply against my current for-next or v3.14-rc1, can you
please check and resend?

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Re: [PATCH v2 2/8] ASoC: da9055: Add DT support for CODEC

[Mark Brown]

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On Fri, Feb 07, 2014 at 04:25:04PM +0000, Mark Brown wrote:
> On Thu, Feb 06, 2014 at 06:03:09PM +0000, Adam Thomson wrote:
> > Signed-off-by: Adam Thomson <Adam.Thomson.Opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>
> 
> This doesn't apply against my current for-next or v3.14-rc1, can you
> please check and resend?

Ugh, sorry - it'll be due to patch 1 of course which I'd skipped due to
the MFD bit.  If you need to resend it's probably easier all round to
just send the MFD and ASoC bits of that separately since there's no
direct dependency.

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RE: [PATCH v2 2/8] ASoC: da9055: Add DT support for CODEC

[Opensource [Adam Thomson]]

On Fri, Feb 07, 2014 at 04:27:17PM +0000, Mark Brown wrote:

> On Fri, Feb 07, 2014 at 04:25:04PM +0000, Mark Brown wrote:
> > On Thu, Feb 06, 2014 at 06:03:09PM +0000, Adam Thomson wrote:
> > > Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> >
> > This doesn't apply against my current for-next or v3.14-rc1, can you
> > please check and resend?
> 
> Ugh, sorry - it'll be due to patch 1 of course which I'd skipped due to
> the MFD bit.  If you need to resend it's probably easier all round to
> just send the MFD and ASoC bits of that separately since there's no
> direct dependency.

Ok, no problem. Will see what Lee comes back and go from there.

[PATCH v2 3/8] mfd: da9055: Add DT support for PMIC

[Adam Thomson]

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
 Documentation/devicetree/bindings/mfd/da9055.txt |   73 ++++++++++++++++++++++
 drivers/mfd/da9055-i2c.c                         |    8 +++
 2 files changed, 81 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/da9055.txt

diff --git a/Documentation/devicetree/bindings/mfd/da9055.txt b/Documentation/devicetree/bindings/mfd/da9055.txt
new file mode 100644
index 0000000..f903c3f
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/da9055.txt
@@ -0,0 +1,73 @@
+* Dialog DA9055 Power Management Integrated Circuit (PMIC)
+
+DA9055 consists of a large and varied group of sub-devices (I2C Only):
+
+Device			 Supply Names	 Description
+------			 ------------	 -----------
+da9055-gpio		:		: GPIOs
+da9055-regulator	:		: Regulators
+da9055-onkey		:		: On key
+da9055-rtc		:		: RTC
+da9055-hwmon		:		: ADC
+da9055-watchdog		:		: Watchdog
+
+The CODEC device in DA9055 has a separate, configurable I2C address and so
+is instantiated separately from the PMIC.
+
+For details on accompanying CODEC I2C device, see the following:
+Documentation/devicetree/bindings/sound/da9055.txt
+
+======
+
+Required properties:
+- compatible : Should be "dlg,da9055-pmic"
+- reg: Specifies the I2C slave address (defaults to 0x5a but can be modified)
+- interrupt-parent: Specifies the phandle of the interrupt controller to which
+  the IRQs from da9055 are delivered to.
+- interrupts: IRQ line info for da9055 chip.
+- interrupt-controller: da9055 has internal IRQs (has own IRQ domain).
+- #interrupt-cells: Should be 1, is the local IRQ number for da9055.
+
+Sub-nodes:
+- regulators : Contain the regulator nodes. The DA9055 regulators are
+  bound using their names as listed below:
+
+    buck1     : regulator BUCK1
+    buck2     : regulator BUCK2
+    ldo1      : regulator LDO1
+    ldo2      : regulator LDO2
+    ldo3      : regulator LDO3
+    ldo4      : regulator LDO4
+    ldo5      : regulator LDO5
+    ldo6      : regulator LDO6
+
+  The bindings details of individual regulator device can be found in:
+  Documentation/devicetree/bindings/regulator/regulator.txt
+
+
+Example:
+
+	pmic: da9055-pmic@5a {
+		compatible = "dlg,da9055-pmic";
+		reg = <0x5a>;
+		interrupt-parent = <&intc>;
+		interrupts = <5 0x8>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		regulators {
+			buck1: BUCK1 {
+				regulator-min-microvolt = <725000>;
+				regulator-max-microvolt = <2075000>;
+			};
+
+			buck2: BUCK2 {
+				regulator-min-microvolt = <925000>;
+				regulator-max-microvolt = <2500000>;
+			};
+			ldo1: LDO1 {
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <3300000>;
+			};
+		};
+	};
diff --git a/drivers/mfd/da9055-i2c.c b/drivers/mfd/da9055-i2c.c
index 8103e43..366a3e2 100644
--- a/drivers/mfd/da9055-i2c.c
+++ b/drivers/mfd/da9055-i2c.c
@@ -15,6 +15,8 @@
 #include <linux/device.h>
 #include <linux/i2c.h>
 #include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_device.h>

 #include <linux/mfd/da9055/core.h>

@@ -66,6 +68,11 @@ static struct i2c_device_id da9055_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);

+static const struct of_device_id da9055_of_match[] = {
+	{ .compatible = "dlg,da9055-pmic", .data = (void *)&da9055_i2c_id[0] },
+	{ }
+};
+
 static struct i2c_driver da9055_i2c_driver = {
 	.probe = da9055_i2c_probe,
 	.remove = da9055_i2c_remove,
@@ -73,6 +80,7 @@ static struct i2c_driver da9055_i2c_driver = {
 	.driver = {
 		.name = "da9055-pmic",
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(da9055_of_match),
 	},
 };

--
1.7.0.4

Re: [PATCH v2 3/8] mfd: da9055: Add DT support for PMIC

[Lee Jones]

> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> ---
>  Documentation/devicetree/bindings/mfd/da9055.txt |   73 ++++++++++++++++++++++
>  drivers/mfd/da9055-i2c.c                         |    8 +++

Can you break this up please.

Bindings should be separate to the binding document.

>  2 files changed, 81 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/mfd/da9055.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/da9055.txt b/Documentation/devicetree/bindings/mfd/da9055.txt
> new file mode 100644
> index 0000000..f903c3f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/da9055.txt
> @@ -0,0 +1,73 @@
> +* Dialog DA9055 Power Management Integrated Circuit (PMIC)
> +
> +DA9055 consists of a large and varied group of sub-devices (I2C Only):
> +
> +Device			 Supply Names	 Description
> +------			 ------------	 -----------
> +da9055-gpio		:		: GPIOs
> +da9055-regulator	:		: Regulators
> +da9055-onkey		:		: On key
> +da9055-rtc		:		: RTC
> +da9055-hwmon		:		: ADC
> +da9055-watchdog		:		: Watchdog
> +
> +The CODEC device in DA9055 has a separate, configurable I2C address and so
> +is instantiated separately from the PMIC.
> +
> +For details on accompanying CODEC I2C device, see the following:
> +Documentation/devicetree/bindings/sound/da9055.txt
> +
> +======
> +
> +Required properties:
> +- compatible : Should be "dlg,da9055-pmic"
> +- reg: Specifies the I2C slave address (defaults to 0x5a but can be modified)
> +- interrupt-parent: Specifies the phandle of the interrupt controller to which
> +  the IRQs from da9055 are delivered to.
> +- interrupts: IRQ line info for da9055 chip.
> +- interrupt-controller: da9055 has internal IRQs (has own IRQ domain).
> +- #interrupt-cells: Should be 1, is the local IRQ number for da9055.
> +
> +Sub-nodes:
> +- regulators : Contain the regulator nodes. The DA9055 regulators are
> +  bound using their names as listed below:
> +
> +    buck1     : regulator BUCK1
> +    buck2     : regulator BUCK2
> +    ldo1      : regulator LDO1
> +    ldo2      : regulator LDO2
> +    ldo3      : regulator LDO3
> +    ldo4      : regulator LDO4
> +    ldo5      : regulator LDO5
> +    ldo6      : regulator LDO6
> +
> +  The bindings details of individual regulator device can be found in:
> +  Documentation/devicetree/bindings/regulator/regulator.txt
> +
> +
> +Example:
> +
> +	pmic: da9055-pmic@5a {
> +		compatible = "dlg,da9055-pmic";
> +		reg = <0x5a>;
> +		interrupt-parent = <&intc>;
> +		interrupts = <5 0x8>;
> +		interrupt-controller;
> +		#interrupt-cells = <1>;
> +
> +		regulators {
> +			buck1: BUCK1 {
> +				regulator-min-microvolt = <725000>;
> +				regulator-max-microvolt = <2075000>;
> +			};
> +
> +			buck2: BUCK2 {
> +				regulator-min-microvolt = <925000>;
> +				regulator-max-microvolt = <2500000>;
> +			};
> +			ldo1: LDO1 {
> +				regulator-min-microvolt = <900000>;
> +				regulator-max-microvolt = <3300000>;
> +			};
> +		};
> +	};
> diff --git a/drivers/mfd/da9055-i2c.c b/drivers/mfd/da9055-i2c.c
> index 8103e43..366a3e2 100644
> --- a/drivers/mfd/da9055-i2c.c
> +++ b/drivers/mfd/da9055-i2c.c
> @@ -15,6 +15,8 @@
>  #include <linux/device.h>
>  #include <linux/i2c.h>
>  #include <linux/err.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> 
>  #include <linux/mfd/da9055/core.h>
> 
> @@ -66,6 +68,11 @@ static struct i2c_device_id da9055_i2c_id[] = {
>  };
>  MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
> 
> +static const struct of_device_id da9055_of_match[] = {
> +	{ .compatible = "dlg,da9055-pmic", .data = (void *)&da9055_i2c_id[0] },

Entangling the i2c_device_id table with the of_device_id table sounds
a bit too wacky for my liking. Where do you even use it?

> +	{ }
> +};
> +
>  static struct i2c_driver da9055_i2c_driver = {
>  	.probe = da9055_i2c_probe,
>  	.remove = da9055_i2c_remove,
> @@ -73,6 +80,7 @@ static struct i2c_driver da9055_i2c_driver = {
>  	.driver = {
>  		.name = "da9055-pmic",
>  		.owner = THIS_MODULE,
> +		.of_match_table = of_match_ptr(da9055_of_match),
>  	},
>  };
> 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

RE: [PATCH v2 3/8] mfd: da9055: Add DT support for PMIC

[Opensource [Adam Thomson]]

On Fri, Feb 07, 2014 at 11:03:18AM +0000, Lee Jones wrote:

> 
> Can you break this up please.
> 
> Bindings should be separate to the binding document.

Right, fine. Figured as they were directly related they should be in one patch
but will separate them.

> Entangling the i2c_device_id table with the of_device_id table sounds
> a bit too wacky for my liking. Where do you even use it?
> 

You're right. Is not used so can remove it.

[PATCH v2 4/8] regulator: da9055: Add DT support

[Adam Thomson]

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
 drivers/regulator/da9055-regulator.c |   69 ++++++++++++++++++++++++++++++++--
 1 files changed, 65 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c
index 7f34020..d90f785 100644
--- a/drivers/regulator/da9055-regulator.c
+++ b/drivers/regulator/da9055-regulator.c
@@ -19,6 +19,8 @@
 #include <linux/platform_device.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
+#include <linux/of.h>
+#include <linux/regulator/of_regulator.h>

 #include <linux/mfd/da9055/core.h>
 #include <linux/mfd/da9055/reg.h>
@@ -446,6 +448,9 @@ static int da9055_gpio_init(struct da9055_regulator *regulator,
 	struct da9055_regulator_info *info = regulator->info;
 	int ret = 0;

+	if (!pdata)
+		return 0;
+
 	if (pdata->gpio_ren && pdata->gpio_ren[id]) {
 		char name[18];
 		int gpio_mux = pdata->gpio_ren[id];
@@ -530,6 +535,59 @@ static inline struct da9055_regulator_info *find_regulator_info(int id)
 	return NULL;
 }

+#ifdef CONFIG_OF
+static struct of_regulator_match da9055_reg_matches[] = {
+	{ .name = "BUCK1", },
+	{ .name = "BUCK2", },
+	{ .name = "LDO1", },
+	{ .name = "LDO2", },
+	{ .name = "LDO3", },
+	{ .name = "LDO4", },
+	{ .name = "LDO5", },
+	{ .name = "LDO6", },
+};
+
+static int da9055_regulator_dt_init(struct platform_device *pdev,
+				    struct da9055_regulator *regulator,
+				    struct regulator_config *config,
+				    int regid)
+{
+	struct device_node *nproot, *np;
+	int ret;
+
+	nproot = of_node_get(pdev->dev.parent->of_node);
+	if (!nproot)
+		return -ENODEV;
+
+	np = of_find_node_by_name(nproot, "regulators");
+	if (!np)
+		return -ENODEV;
+
+	ret = of_regulator_match(&pdev->dev, np, &da9055_reg_matches[regid], 1);
+	of_node_put(nproot);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Error matching regulator: %d\n", ret);
+		return -ENODEV;
+	}
+
+	config->init_data = da9055_reg_matches[regid].init_data;
+	config->of_node = da9055_reg_matches[regid].of_node;
+
+	if (!config->of_node)
+		return -ENODEV;
+
+	return 0;
+}
+#else
+static inline da9055_regulator_dt_init(struct platform_device *pdev,
+				       struct da9055_regulator *regulator,
+				       struct regulator_config *config,
+				       int regid)
+{
+	return -ENODEV;
+}
+#endif /* CONFIG_OF */
+
 static int da9055_regulator_probe(struct platform_device *pdev)
 {
 	struct regulator_config config = { };
@@ -538,9 +596,6 @@ static int da9055_regulator_probe(struct platform_device *pdev)
 	struct da9055_pdata *pdata = dev_get_platdata(da9055->dev);
 	int ret, irq;

-	if (pdata == NULL || pdata->regulators[pdev->id] == NULL)
-		return -ENODEV;
-
 	regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9055_regulator),
 				 GFP_KERNEL);
 	if (!regulator)
@@ -557,8 +612,14 @@ static int da9055_regulator_probe(struct platform_device *pdev)
 	config.driver_data = regulator;
 	config.regmap = da9055->regmap;

-	if (pdata && pdata->regulators)
+	if (pdata && pdata->regulators) {
 		config.init_data = pdata->regulators[pdev->id];
+	} else {
+		ret = da9055_regulator_dt_init(pdev, regulator, &config,
+					       pdev->id);
+		if (ret < 0)
+			return ret;
+	}

 	ret = da9055_gpio_init(regulator, &config, pdata, pdev->id);
 	if (ret < 0)
--
1.7.0.4

Re: [PATCH v2 4/8] regulator: da9055: Add DT support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 176 bytes --]

On Thu, Feb 06, 2014 at 06:03:13PM +0000, Adam Thomson wrote:
> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>

Applied, thanks.

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[PATCH v2 5/8] onkey: da9055: Remove use of regmap_irq_get_virq()

[Adam Thomson]

Using platform_get_irq_byname() to retrieve the IRQ number
returns the VIRQ number rather than the local IRQ number for
the device. Passing that value then into regmap_irq_get_virq()
causes a failure because the function is expecting the local
IRQ number (e.g. 0, 1, 2, 3, etc). This patch removes use of
regmap_irq_get_virq() to prevent this failure from happening.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
 drivers/input/misc/da9055_onkey.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/input/misc/da9055_onkey.c b/drivers/input/misc/da9055_onkey.c
index 4b11ede..4765799 100644
--- a/drivers/input/misc/da9055_onkey.c
+++ b/drivers/input/misc/da9055_onkey.c
@@ -109,7 +109,6 @@ static int da9055_onkey_probe(struct platform_device *pdev)

 	INIT_DELAYED_WORK(&onkey->work, da9055_onkey_work);

-	irq = regmap_irq_get_virq(da9055->irq_data, irq);
 	err = request_threaded_irq(irq, NULL, da9055_onkey_irq,
 				   IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
 				   "ONKEY", onkey);
--
1.7.0.4

[PATCH v2 6/8] hwmon: da9055: Remove use of regmap_irq_get_virq()

[Adam Thomson]

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
 drivers/hwmon/da9055-hwmon.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/da9055-hwmon.c b/drivers/hwmon/da9055-hwmon.c
index 029ecab..73b3865 100644
--- a/drivers/hwmon/da9055-hwmon.c
+++ b/drivers/hwmon/da9055-hwmon.c
@@ -278,10 +278,6 @@ static int da9055_hwmon_probe(struct platform_device *pdev)
 	if (hwmon_irq < 0)
 		return hwmon_irq;

-	hwmon_irq = regmap_irq_get_virq(hwmon->da9055->irq_data, hwmon_irq);
-	if (hwmon_irq < 0)
-		return hwmon_irq;
-
 	ret = devm_request_threaded_irq(&pdev->dev, hwmon_irq,
 					NULL, da9055_auxadc_irq,
 					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
--
1.7.0.4

Re: [PATCH v2 6/8] hwmon: da9055: Remove use of regmap_irq_get_virq()

[Guenter Roeck]

On 02/06/2014 10:03 AM, Adam Thomson wrote:
> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> ---

Applied (after adding the explanation from the introduction).

Thanks,
Guenter

[PATCH v2 7/8] rtc: da9055: Remove use of regmap_irq_get_virq()

[Adam Thomson]

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
 drivers/rtc/rtc-da9055.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/rtc/rtc-da9055.c b/drivers/rtc/rtc-da9055.c
index 48cb2ac..a825491 100644
--- a/drivers/rtc/rtc-da9055.c
+++ b/drivers/rtc/rtc-da9055.c
@@ -302,7 +302,9 @@ static int da9055_rtc_probe(struct platform_device *pdev)
 	}

 	alm_irq = platform_get_irq_byname(pdev, "ALM");
-	alm_irq = regmap_irq_get_virq(rtc->da9055->irq_data, alm_irq);
+	if (alm_irq < 0)
+		return alm_irq;
+
 	ret = devm_request_threaded_irq(&pdev->dev, alm_irq, NULL,
 					da9055_rtc_alm_irq,
 					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
--
1.7.0.4

[PATCH v2 8/8] regulator: da9055: Remove use of regmap_irq_get_virq()

[Adam Thomson]

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>
---
 drivers/regulator/da9055-regulator.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c
index d90f785..3b7a26c 100644
--- a/drivers/regulator/da9055-regulator.c
+++ b/drivers/regulator/da9055-regulator.c
@@ -637,7 +637,9 @@ static int da9055_regulator_probe(struct platform_device *pdev)
 	/* Only LDO 5 and 6 has got the over current interrupt */
 	if (pdev->id == DA9055_ID_LDO5 || pdev->id ==  DA9055_ID_LDO6) {
 		irq = platform_get_irq_byname(pdev, "REGULATOR");
-		irq = regmap_irq_get_virq(da9055->irq_data, irq);
+		if (irq < 0)
+			return irq;
+
 		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
 						da9055_ldo5_6_oc_irq,
 						IRQF_TRIGGER_HIGH |
--
1.7.0.4

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Re: [PATCH v2 8/8] regulator: da9055: Remove use of regmap_irq_get_virq()

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 148 bytes --]

On Thu, Feb 06, 2014 at 06:03:21PM +0000, Adam Thomson wrote:
> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>

Applied, thanks.

[-- Attachment #2: Digital signature --]
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