[PATCH V2 0/2] Add device tree support for DA9063

[PATCH V2 0/2] Add device tree support for DA9063

[Opensource [Steve Twiss]]

From: Steve Twiss <stwiss.opensource@diasemi.com>

This patch set adds device tree support for the Dialog
Semiconductor DA9063 PMIC. Support is provided for the
Regulators; Real-Time Clock and Watchdog.

[PATCH V2 1/2]: kernel driver device tree support
[PATCH V2 2/2]: device tree bindings document

Thank you,
Steve Twiss, Dialog Semiconductor Ltd.

S Twiss (2):
  mfd: da9063: Add device tree support
  devicetree: Add bindings for DA9063

 Documentation/devicetree/bindings/mfd/da9063.txt | 94 ++++++++++++++++++++++++
 drivers/mfd/da9063-core.c                        |  2 +
 drivers/mfd/da9063-i2c.c                         | 11 +++
 include/linux/mfd/da9063/core.h                  |  1 +
 4 files changed, 108 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/da9063.txt

-- 
end-of-patch for PATCH V2

[PATCH V2 2/2] devicetree: Add bindings for DA9063

[Steve Twiss]

From: Steve Twiss <stwiss.opensource@diasemi.com>

Add device tree bindings for DA9063 regulators; Real-Time Clock
and Watchdog.

This patch is dependent on PATCH V2 1/2 

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>

---
This patch applies against linux-next and v3.19-rc4 

 Documentation/devicetree/bindings/mfd/da9063.txt | 94 ++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/da9063.txt

diff --git a/Documentation/devicetree/bindings/mfd/da9063.txt b/Documentation/devicetree/bindings/mfd/da9063.txt
new file mode 100644
index 0000000..ac26af4
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/da9063.txt
@@ -0,0 +1,94 @@
+* Dialog DA9063 Power Management Integrated Circuit (PMIC)
+
+DA9093 consists of a large and varied group of sub-devices (I2C Only):
+
+Device                   Supply Names    Description
+------                   ------------    -----------
+da9063-regulator        :               : LDOs & BUCKs
+da9063-rtc              :               : Real-Time Clock
+da9063-watchdog         :               : Watchdog
+
+======
+
+Required properties:
+
+- compatible : Should be "dlg,da9063-ca", "dlg,da9063-bb" or/and
+  "dlg,da9063-ad".
+- reg : Specifies the I2C slave address (this defaults to 0x58 but it can be
+  modified to match the chip's OTP settings).
+- interrupt-parent : Specifies the reference to the interrupt controller for
+  the DA9063.
+- interrupts : IRQ line information.
+- interrupt-controller
+
+Sub-nodes:
+
+- regulators : This node defines the settings for the LDOs and BUCKs. The
+  DA9063 regulators are bound using their names listed below:
+
+    bcore1    : BUCK CORE1
+    bcore2    : BUCK CORE2
+    bpro      : BUCK PRO
+    bmem      : BUCK MEM
+    bio       : BUCK IO
+    bperi     : BUCK PERI
+    ldo1      : LDO_1
+    ldo2      : LDO_2
+    ldo3      : LDO_3
+    ldo4      : LDO_4
+    ldo5      : LDO_5
+    ldo6      : LDO_6
+    ldo7      : LDO_7
+    ldo8      : LDO_8
+    ldo9      : LDO_9
+    ldo10     : LDO_10
+    ldo11     : LDO_11
+
+  The component follows the standard regulator framework and the bindings
+  details of individual regulator device can be found in:
+  Documentation/devicetree/bindings/regulator/regulator.txt
+
+- rtc : This node defines settings for the Real-Time Clock associated with
+  the DA9063. There are currently no entries in this binding, however
+  compatible = "dlg,da9063-rtc" should be added if a node is created.
+
+- watchdog : This node defines settings for the Watchdog timer associated
+  with the DA9063. There are currently no entries in this binding, however
+  compatible = "dlg,da9063-watchdog" should be added if a node is created.
+
+
+Example:
+
+	pmic0: da9063@58 {
+		compatible = "dlg,da9063-ca", "dlg,da9063-bb", "dlg,da9063-ad";
+		reg = <0x58>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-controller;
+
+		rtc {
+			compatible = "dlg,da9063-rtc";
+		};
+
+		wdt {
+			compatible = "dlg,da9063-watchdog";
+		};
+
+		regulators {
+			DA9063_BCORE1: bcore1 {
+				regulator-name = "BCORE1";
+				regulator-min-microvolt = <300000>;
+				regulator-max-microvolt = <1570000>;
+				regulator-min-microamp = <500000>;
+				regulator-max-microamp = <2000000>;
+				regulator-boot-on;
+			};
+			DA9063_LDO11: ldo11 {
+				regulator-name = "LDO_11";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-boot-on;
+			};
+		};
+	};
+
-- 
end-of-patch for PATCH V2

[PATCH V2 2/2] devicetree: Add bindings for DA9063

[Steve Twiss]

From: Steve Twiss <stwiss.opensource@diasemi.com>

Add device tree bindings for DA9063 regulators; Real-Time Clock
and Watchdog.

This patch is dependent on PATCH V2 1/2 

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>

---
This patch applies against linux-next and v3.19-rc4 

 Documentation/devicetree/bindings/mfd/da9063.txt | 94 ++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/da9063.txt

diff --git a/Documentation/devicetree/bindings/mfd/da9063.txt b/Documentation/devicetree/bindings/mfd/da9063.txt
new file mode 100644
index 0000000..ac26af4
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/da9063.txt
@@ -0,0 +1,94 @@
+* Dialog DA9063 Power Management Integrated Circuit (PMIC)
+
+DA9093 consists of a large and varied group of sub-devices (I2C Only):
+
+Device                   Supply Names    Description
+------                   ------------    -----------
+da9063-regulator        :               : LDOs & BUCKs
+da9063-rtc              :               : Real-Time Clock
+da9063-watchdog         :               : Watchdog
+
+======
+
+Required properties:
+
+- compatible : Should be "dlg,da9063-ca", "dlg,da9063-bb" or/and
+  "dlg,da9063-ad".
+- reg : Specifies the I2C slave address (this defaults to 0x58 but it can be
+  modified to match the chip's OTP settings).
+- interrupt-parent : Specifies the reference to the interrupt controller for
+  the DA9063.
+- interrupts : IRQ line information.
+- interrupt-controller
+
+Sub-nodes:
+
+- regulators : This node defines the settings for the LDOs and BUCKs. The
+  DA9063 regulators are bound using their names listed below:
+
+    bcore1    : BUCK CORE1
+    bcore2    : BUCK CORE2
+    bpro      : BUCK PRO
+    bmem      : BUCK MEM
+    bio       : BUCK IO
+    bperi     : BUCK PERI
+    ldo1      : LDO_1
+    ldo2      : LDO_2
+    ldo3      : LDO_3
+    ldo4      : LDO_4
+    ldo5      : LDO_5
+    ldo6      : LDO_6
+    ldo7      : LDO_7
+    ldo8      : LDO_8
+    ldo9      : LDO_9
+    ldo10     : LDO_10
+    ldo11     : LDO_11
+
+  The component follows the standard regulator framework and the bindings
+  details of individual regulator device can be found in:
+  Documentation/devicetree/bindings/regulator/regulator.txt
+
+- rtc : This node defines settings for the Real-Time Clock associated with
+  the DA9063. There are currently no entries in this binding, however
+  compatible = "dlg,da9063-rtc" should be added if a node is created.
+
+- watchdog : This node defines settings for the Watchdog timer associated
+  with the DA9063. There are currently no entries in this binding, however
+  compatible = "dlg,da9063-watchdog" should be added if a node is created.
+
+
+Example:
+
+	pmic0: da9063@58 {
+		compatible = "dlg,da9063-ca", "dlg,da9063-bb", "dlg,da9063-ad";
+		reg = <0x58>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-controller;
+
+		rtc {
+			compatible = "dlg,da9063-rtc";
+		};
+
+		wdt {
+			compatible = "dlg,da9063-watchdog";
+		};
+
+		regulators {
+			DA9063_BCORE1: bcore1 {
+				regulator-name = "BCORE1";
+				regulator-min-microvolt = <300000>;
+				regulator-max-microvolt = <1570000>;
+				regulator-min-microamp = <500000>;
+				regulator-max-microamp = <2000000>;
+				regulator-boot-on;
+			};
+			DA9063_LDO11: ldo11 {
+				regulator-name = "LDO_11";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-boot-on;
+			};
+		};
+	};
+
-- 
end-of-patch for PATCH V2

Re: [PATCH V2 2/2] devicetree: Add bindings for DA9063

[Lee Jones]

On Mon, 19 Jan 2015, Steve Twiss wrote:

> From: Steve Twiss <stwiss.opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>
> 
> Add device tree bindings for DA9063 regulators; Real-Time Clock
> and Watchdog.
> 
> This patch is dependent on PATCH V2 1/2 
> 
> Signed-off-by: Steve Twiss <stwiss.opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>
> 
> ---
> This patch applies against linux-next and v3.19-rc4 
> 
>  Documentation/devicetree/bindings/mfd/da9063.txt | 94 ++++++++++++++++++++++++
>  1 file changed, 94 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/da9063.txt

Looks pretty standard.

Acked-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

-- 
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 2/2] devicetree: Add bindings for DA9063

[Lee Jones]

On Mon, 19 Jan 2015, Steve Twiss wrote:

> From: Steve Twiss <stwiss.opensource@diasemi.com>
> 
> Add device tree bindings for DA9063 regulators; Real-Time Clock
> and Watchdog.
> 
> This patch is dependent on PATCH V2 1/2 
> 
> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
> 
> ---
> This patch applies against linux-next and v3.19-rc4 
> 
>  Documentation/devicetree/bindings/mfd/da9063.txt | 94 ++++++++++++++++++++++++
>  1 file changed, 94 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/da9063.txt

Looks pretty standard.

Acked-by: Lee Jones <lee.jones@linaro.org>

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

[PATCH V2 1/2] mfd: da9063: Add device tree support

[Steve Twiss]

From: Steve Twiss <stwiss.opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>

Add device tree support for DA9063 regulators; Real-Time Clock
and Watchdog.

This patch is dependent on PATCH V2 2/2 

Signed-off-by: Steve Twiss <stwiss.opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>

---
This patch applies against linux-next and v3.19-rc4 

 drivers/mfd/da9063-core.c       |  2 ++
 drivers/mfd/da9063-i2c.c        | 11 +++++++++++
 include/linux/mfd/da9063/core.h |  1 +
 3 files changed, 14 insertions(+)

diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
index f38bc98..facd361 100644
--- a/drivers/mfd/da9063-core.c
+++ b/drivers/mfd/da9063-core.c
@@ -86,6 +86,7 @@ static const struct mfd_cell da9063_devs[] = {
 	},
 	{
 		.name		= DA9063_DRVNAME_WATCHDOG,
+		.of_compatible	= "dlg,da9063-watchdog",
 	},
 	{
 		.name		= DA9063_DRVNAME_HWMON,
@@ -101,6 +102,7 @@ static const struct mfd_cell da9063_devs[] = {
 		.name		= DA9063_DRVNAME_RTC,
 		.num_resources	= ARRAY_SIZE(da9063_rtc_resources),
 		.resources	= da9063_rtc_resources,
+		.of_compatible	= "dlg,da9063-rtc",
 	},
 	{
 		.name		= DA9063_DRVNAME_VIBRATION,
diff --git a/drivers/mfd/da9063-i2c.c b/drivers/mfd/da9063-i2c.c
index 21fd8d9..0e94b20 100644
--- a/drivers/mfd/da9063-i2c.c
+++ b/drivers/mfd/da9063-i2c.c
@@ -25,6 +25,9 @@
 #include <linux/mfd/da9063/pdata.h>
 #include <linux/mfd/da9063/registers.h>
 
+#include <linux/of.h>
+#include <linux/regulator/of_regulator.h>
+
 static const struct regmap_range da9063_ad_readable_ranges[] = {
 	{
 		.range_min = DA9063_REG_PAGE_CON,
@@ -203,6 +206,13 @@ static struct regmap_config da9063_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
+static const struct of_device_id da9063_dt_ids[] = {
+	{ .compatible = "dlg,da9063-ad", },
+	{ .compatible = "dlg,da9063-bb", },
+	{ .compatible = "dlg,da9063-ca", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, da9063_dt_ids);
 static int da9063_i2c_probe(struct i2c_client *i2c,
 	const struct i2c_device_id *id)
 {
@@ -257,6 +267,7 @@ static struct i2c_driver da9063_i2c_driver = {
 	.driver = {
 		.name = "da9063",
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(da9063_dt_ids),
 	},
 	.probe    = da9063_i2c_probe,
 	.remove   = da9063_i2c_remove,
diff --git a/include/linux/mfd/da9063/core.h b/include/linux/mfd/da9063/core.h
index b92a326..79f4d82 100644
--- a/include/linux/mfd/da9063/core.h
+++ b/include/linux/mfd/da9063/core.h
@@ -36,6 +36,7 @@ enum da9063_models {
 enum da9063_variant_codes {
 	PMIC_DA9063_AD = 0x3,
 	PMIC_DA9063_BB = 0x5,
+	PMIC_DA9063_CA = 0x6,
 };
 
 /* Interrupts */
-- 
end-of-patch for PATCH V2

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[PATCH V2 1/2] mfd: da9063: Add device tree support

[Steve Twiss]

From: Steve Twiss <stwiss.opensource@diasemi.com>

Add device tree support for DA9063 regulators; Real-Time Clock
and Watchdog.

This patch is dependent on PATCH V2 2/2 

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>

---
This patch applies against linux-next and v3.19-rc4 

 drivers/mfd/da9063-core.c       |  2 ++
 drivers/mfd/da9063-i2c.c        | 11 +++++++++++
 include/linux/mfd/da9063/core.h |  1 +
 3 files changed, 14 insertions(+)

diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
index f38bc98..facd361 100644
--- a/drivers/mfd/da9063-core.c
+++ b/drivers/mfd/da9063-core.c
@@ -86,6 +86,7 @@ static const struct mfd_cell da9063_devs[] = {
 	},
 	{
 		.name		= DA9063_DRVNAME_WATCHDOG,
+		.of_compatible	= "dlg,da9063-watchdog",
 	},
 	{
 		.name		= DA9063_DRVNAME_HWMON,
@@ -101,6 +102,7 @@ static const struct mfd_cell da9063_devs[] = {
 		.name		= DA9063_DRVNAME_RTC,
 		.num_resources	= ARRAY_SIZE(da9063_rtc_resources),
 		.resources	= da9063_rtc_resources,
+		.of_compatible	= "dlg,da9063-rtc",
 	},
 	{
 		.name		= DA9063_DRVNAME_VIBRATION,
diff --git a/drivers/mfd/da9063-i2c.c b/drivers/mfd/da9063-i2c.c
index 21fd8d9..0e94b20 100644
--- a/drivers/mfd/da9063-i2c.c
+++ b/drivers/mfd/da9063-i2c.c
@@ -25,6 +25,9 @@
 #include <linux/mfd/da9063/pdata.h>
 #include <linux/mfd/da9063/registers.h>
 
+#include <linux/of.h>
+#include <linux/regulator/of_regulator.h>
+
 static const struct regmap_range da9063_ad_readable_ranges[] = {
 	{
 		.range_min = DA9063_REG_PAGE_CON,
@@ -203,6 +206,13 @@ static struct regmap_config da9063_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
+static const struct of_device_id da9063_dt_ids[] = {
+	{ .compatible = "dlg,da9063-ad", },
+	{ .compatible = "dlg,da9063-bb", },
+	{ .compatible = "dlg,da9063-ca", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, da9063_dt_ids);
 static int da9063_i2c_probe(struct i2c_client *i2c,
 	const struct i2c_device_id *id)
 {
@@ -257,6 +267,7 @@ static struct i2c_driver da9063_i2c_driver = {
 	.driver = {
 		.name = "da9063",
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(da9063_dt_ids),
 	},
 	.probe    = da9063_i2c_probe,
 	.remove   = da9063_i2c_remove,
diff --git a/include/linux/mfd/da9063/core.h b/include/linux/mfd/da9063/core.h
index b92a326..79f4d82 100644
--- a/include/linux/mfd/da9063/core.h
+++ b/include/linux/mfd/da9063/core.h
@@ -36,6 +36,7 @@ enum da9063_models {
 enum da9063_variant_codes {
 	PMIC_DA9063_AD = 0x3,
 	PMIC_DA9063_BB = 0x5,
+	PMIC_DA9063_CA = 0x6,
 };
 
 /* Interrupts */
-- 
end-of-patch for PATCH V2

Re: [PATCH V2 1/2] mfd: da9063: Add device tree support

[Lee Jones]

On Mon, 19 Jan 2015, Steve Twiss wrote:

> From: Steve Twiss <stwiss.opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>
> 
> Add device tree support for DA9063 regulators; Real-Time Clock
> and Watchdog.
> 
> This patch is dependent on PATCH V2 2/2 
> 
> Signed-off-by: Steve Twiss <stwiss.opensource-WBD+wuPFNBhBDgjK7y7TUQ@public.gmane.org>
> 
> ---
> This patch applies against linux-next and v3.19-rc4 
> 
>  drivers/mfd/da9063-core.c       |  2 ++
>  drivers/mfd/da9063-i2c.c        | 11 +++++++++++
>  include/linux/mfd/da9063/core.h |  1 +
>  3 files changed, 14 insertions(+)
> 
> diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
> index f38bc98..facd361 100644
> --- a/drivers/mfd/da9063-core.c
> +++ b/drivers/mfd/da9063-core.c
> @@ -86,6 +86,7 @@ static const struct mfd_cell da9063_devs[] = {
>  	},
>  	{
>  		.name		= DA9063_DRVNAME_WATCHDOG,
> +		.of_compatible	= "dlg,da9063-watchdog",
>  	},
>  	{
>  		.name		= DA9063_DRVNAME_HWMON,
> @@ -101,6 +102,7 @@ static const struct mfd_cell da9063_devs[] = {
>  		.name		= DA9063_DRVNAME_RTC,
>  		.num_resources	= ARRAY_SIZE(da9063_rtc_resources),
>  		.resources	= da9063_rtc_resources,
> +		.of_compatible	= "dlg,da9063-rtc",
>  	},
>  	{
>  		.name		= DA9063_DRVNAME_VIBRATION,
> diff --git a/drivers/mfd/da9063-i2c.c b/drivers/mfd/da9063-i2c.c
> index 21fd8d9..0e94b20 100644
> --- a/drivers/mfd/da9063-i2c.c
> +++ b/drivers/mfd/da9063-i2c.c
> @@ -25,6 +25,9 @@
>  #include <linux/mfd/da9063/pdata.h>
>  #include <linux/mfd/da9063/registers.h>
>  
> +#include <linux/of.h>
> +#include <linux/regulator/of_regulator.h>
> +
>  static const struct regmap_range da9063_ad_readable_ranges[] = {
>  	{
>  		.range_min = DA9063_REG_PAGE_CON,
> @@ -203,6 +206,13 @@ static struct regmap_config da9063_regmap_config = {
>  	.cache_type = REGCACHE_RBTREE,
>  };
>  
> +static const struct of_device_id da9063_dt_ids[] = {
> +	{ .compatible = "dlg,da9063-ad", },
> +	{ .compatible = "dlg,da9063-bb", },
> +	{ .compatible = "dlg,da9063-ca", },

I'm still a bit bemused as to why these require their own compatible
strings?  They are never matched (of_match_device()) on and it appears
they can be dynamically told apart by poking.

-- 
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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 1/2] mfd: da9063: Add device tree support

[Lee Jones]

On Mon, 19 Jan 2015, Steve Twiss wrote:

> From: Steve Twiss <stwiss.opensource@diasemi.com>
> 
> Add device tree support for DA9063 regulators; Real-Time Clock
> and Watchdog.
> 
> This patch is dependent on PATCH V2 2/2 
> 
> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
> 
> ---
> This patch applies against linux-next and v3.19-rc4 
> 
>  drivers/mfd/da9063-core.c       |  2 ++
>  drivers/mfd/da9063-i2c.c        | 11 +++++++++++
>  include/linux/mfd/da9063/core.h |  1 +
>  3 files changed, 14 insertions(+)
> 
> diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
> index f38bc98..facd361 100644
> --- a/drivers/mfd/da9063-core.c
> +++ b/drivers/mfd/da9063-core.c
> @@ -86,6 +86,7 @@ static const struct mfd_cell da9063_devs[] = {
>  	},
>  	{
>  		.name		= DA9063_DRVNAME_WATCHDOG,
> +		.of_compatible	= "dlg,da9063-watchdog",
>  	},
>  	{
>  		.name		= DA9063_DRVNAME_HWMON,
> @@ -101,6 +102,7 @@ static const struct mfd_cell da9063_devs[] = {
>  		.name		= DA9063_DRVNAME_RTC,
>  		.num_resources	= ARRAY_SIZE(da9063_rtc_resources),
>  		.resources	= da9063_rtc_resources,
> +		.of_compatible	= "dlg,da9063-rtc",
>  	},
>  	{
>  		.name		= DA9063_DRVNAME_VIBRATION,
> diff --git a/drivers/mfd/da9063-i2c.c b/drivers/mfd/da9063-i2c.c
> index 21fd8d9..0e94b20 100644
> --- a/drivers/mfd/da9063-i2c.c
> +++ b/drivers/mfd/da9063-i2c.c
> @@ -25,6 +25,9 @@
>  #include <linux/mfd/da9063/pdata.h>
>  #include <linux/mfd/da9063/registers.h>
>  
> +#include <linux/of.h>
> +#include <linux/regulator/of_regulator.h>
> +
>  static const struct regmap_range da9063_ad_readable_ranges[] = {
>  	{
>  		.range_min = DA9063_REG_PAGE_CON,
> @@ -203,6 +206,13 @@ static struct regmap_config da9063_regmap_config = {
>  	.cache_type = REGCACHE_RBTREE,
>  };
>  
> +static const struct of_device_id da9063_dt_ids[] = {
> +	{ .compatible = "dlg,da9063-ad", },
> +	{ .compatible = "dlg,da9063-bb", },
> +	{ .compatible = "dlg,da9063-ca", },

I'm still a bit bemused as to why these require their own compatible
strings?  They are never matched (of_match_device()) on and it appears
they can be dynamically told apart by poking.

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

RE: [PATCH V2 1/2] mfd: da9063: Add device tree support

[Opensource [Steve Twiss]]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 1520 bytes --]


On 20 January 2015 10:46 Lee Jones wrote:

[...]

> >  static const struct regmap_range da9063_ad_readable_ranges[] = {
> >  	{
> >  		.range_min = DA9063_REG_PAGE_CON,
> > @@ -203,6 +206,13 @@ static struct regmap_config da9063_regmap_config
> = {
> >  	.cache_type = REGCACHE_RBTREE,
> >  };
> >
> > +static const struct of_device_id da9063_dt_ids[] = {
> > +	{ .compatible = "dlg,da9063-ad", },
> > +	{ .compatible = "dlg,da9063-bb", },
> > +	{ .compatible = "dlg,da9063-ca", },
> 
> I'm still a bit bemused as to why these require their own compatible
> strings?  They are never matched (of_match_device()) on and it appears
> they can be dynamically told apart by poking.
> 

Yes: like you said. Why bother with a 2-letter variant code in the DT if the
driver's behaviour is automatic?

It was a design style decision on my side. I was being explicit in my definitions 
and I added the 2-letter code to handle (potential) differences in the way
platform data can be handled in the driver. There is nothing right now, I was just
considering the future and the ABI.

However, I've talked myself round this argument several times -- I guess the
explicit compatibility letters in the devices tree are jarring against the automatic
detection inside the driver.

I will remove the 2-letter extensions from the next submission.

Regards,
Steve


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RE: [PATCH V2 1/2] mfd: da9063: Add device tree support

[Opensource [Steve Twiss]]

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[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 1505 bytes --]


On 20 January 2015 10:46 Lee Jones wrote:

[...]

> >  static const struct regmap_range da9063_ad_readable_ranges[] = {
> >  	{
> >  		.range_min = DA9063_REG_PAGE_CON,
> > @@ -203,6 +206,13 @@ static struct regmap_config da9063_regmap_config
> = {
> >  	.cache_type = REGCACHE_RBTREE,
> >  };
> >
> > +static const struct of_device_id da9063_dt_ids[] = {
> > +	{ .compatible = "dlg,da9063-ad", },
> > +	{ .compatible = "dlg,da9063-bb", },
> > +	{ .compatible = "dlg,da9063-ca", },
> 
> I'm still a bit bemused as to why these require their own compatible
> strings?  They are never matched (of_match_device()) on and it appears
> they can be dynamically told apart by poking.
> 

Yes: like you said. Why bother with a 2-letter variant code in the DT if the
driver's behaviour is automatic?

It was a design style decision on my side. I was being explicit in my definitions 
and I added the 2-letter code to handle (potential) differences in the way
platform data can be handled in the driver. There is nothing right now, I was just
considering the future and the ABI.

However, I've talked myself round this argument several times -- I guess the
explicit compatibility letters in the devices tree are jarring against the automatic
detection inside the driver.

I will remove the 2-letter extensions from the next submission.

Regards,
Steve


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Re: [PATCH V2 0/2] Add device tree support for DA9063

[Lee Jones]

On Mon, 19 Jan 2015, Opensource [Steve Twiss] wrote:

> From: Steve Twiss <stwiss.opensource@diasemi.com>
> 
> This patch set adds device tree support for the Dialog
> Semiconductor DA9063 PMIC. Support is provided for the
> Regulators; Real-Time Clock and Watchdog.
> 
> [PATCH V2 1/2]: kernel driver device tree support
> [PATCH V2 2/2]: device tree bindings document

As this is v2, I would expect to see a changelog somewhere.

> Thank you,
> Steve Twiss, Dialog Semiconductor Ltd.
> 
> S Twiss (2):
>   mfd: da9063: Add device tree support
>   devicetree: Add bindings for DA9063
> 
>  Documentation/devicetree/bindings/mfd/da9063.txt | 94 ++++++++++++++++++++++++
>  drivers/mfd/da9063-core.c                        |  2 +
>  drivers/mfd/da9063-i2c.c                         | 11 +++
>  include/linux/mfd/da9063/core.h                  |  1 +
>  4 files changed, 108 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/da9063.txt
> 

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