[RESEND PATCH v6 0/8] mfd: Add OF device table to I2C drivers that are missing it

[RESEND PATCH v6 0/8] mfd: Add OF device table to I2C drivers that are missing it

[Javier Martinez Canillas]

Hello,

This series add OF device ID tables to mfd I2C drivers whose devices are
either used in Device Tree source files or are listed in binding docs as
a compatible string.

That's done because the plan is to change the I2C core to report proper OF
modaliases instead of always reporting a MODALIAS=i2c:<foo> regardless if
a device was registered via DT or using the legacy platform data mechanism.

So these patches will make sure that mfd I2C drivers modules will continue
to be autoloaded once the I2C core is changed to report proper OF modalias.

Users didn't have a vendor prefix in the used compatible strings, but since
there wasn't a DT binding document for these drivers, it can be said that
were working for mere luck and so this series fixes the users and add a DT
binding doc for the drivers.

Most patches can be applied independently, with the exception of patches
2 to 4 that should be applied in the same tree to keep bisect-ability. I
suggest these to go through the MFD subsystem tree.

Best regards,
Javier

Changes in v6:
- Mention CBUS address instead of I2C since that's the bus used (Wolfram Sang).
- Add a "i2c-cbus-gpio" comptible and use cbus0 for parent node (Wolfram Sang).
- Add Wolfram Sang's Reviewed-by tag.
- Add Wolfram Sang's Reviewed-by tag.
- Add Wolfram Sang's Reviewed-by tag.
- Add Wolfram Sang's Reviewed-by tag.

Changes in v5:
- Add missing properties for interrupts to DT binding doc (Rob Herring).
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.
- Add Lee Jones <lee.jones@linaro.org>'s Acked-by tag.
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Tony Lindgren's Acked-by tag.
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.
- Add Lee Jones <lee.jones@linaro.org>'s Acked-by tag.
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.
- Add Rob Herring's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.
- Add Rob Herring's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.
- Add Lee Jones <lee.jones@linaro.org>'s Acked-by tag.
- Add Rob Herring's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.

Changes in v4:
- Use "dt-bindings: mfd:" prefix in subject line (Rob Herring).
- Add information about what functions the device serve (Lee Jones).
- Avoid using MFD in Device Tree (Lee Jones).
- Drop -mfd suffix in compatible string (Lee Jones).
- Avoid using MFD in Device Tree (Lee Jones).
- Use "dt-bindings: mfd:" prefix in subject line (Rob Herring).
- Add information about what functions the device serve (Lee Jones).

Changes in v3:
- Add a vendor prefix to the compatible string (Rob Herring).
- Add a vendor prefix to the compatible string (Rob Herring).

Changes in v2:
- Don't use of_match_ptr() to avoid build warning when CONFIG_OF is disabled.
- Don't use of_match_ptr() to avoid build warning when CONFIG_OF is disabled.

Javier Martinez Canillas (8):
  dt-bindings: mfd: Add retu/tahvo ASIC chips bindings
  mfd: retu: Drop -mfd suffix from I2C device ID name
  mfd: retu: Add OF device ID table
  ARM: dts: n8x0: Add vendor prefix to retu node
  i2c: i2c-cbus-gpio: Add vendor prefix to retu node in example
  dt-bindings: mfd: Add TI tps6105x chip bindings
  mfd: tps6105x: Add OF device ID table
  ARM: ux500: Add vendor prefix to tps61052 node

 .../devicetree/bindings/i2c/i2c-cbus-gpio.txt      |  4 ++--
 Documentation/devicetree/bindings/mfd/retu.txt     | 25 ++++++++++++++++++++++
 Documentation/devicetree/bindings/mfd/tps6105x.txt | 17 +++++++++++++++
 arch/arm/boot/dts/omap2420-n8x0-common.dtsi        |  4 ++--
 arch/arm/boot/dts/ste-hrefprev60.dtsi              |  2 +-
 arch/arm/mach-omap1/board-nokia770.c               |  4 ++--
 drivers/mfd/retu-mfd.c                             | 12 +++++++++--
 drivers/mfd/tps6105x.c                             |  8 +++++++
 8 files changed, 67 insertions(+), 9 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/retu.txt
 create mode 100644 Documentation/devicetree/bindings/mfd/tps6105x.txt

-- 
2.9.3

[RESEND PATCH v6 1/8] dt-bindings: mfd: Add retu/tahvo ASIC chips bindings

[Javier Martinez Canillas]

There are Device Tree source files defining a device node for the
retu/tahvo I2C chip, but there isn't a DT binding document for it.

Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Lee Jones <lee.jones@linaro.org>

---

Changes in v6:
- Mention CBUS address instead of I2C since that's the bus used (Wolfram Sang).
- Add a "i2c-cbus-gpio" comptible and use cbus0 for parent node (Wolfram Sang).

Changes in v5:
- Add missing properties for interrupts to DT binding doc (Rob Herring).
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.
- Add Lee Jones <lee.jones@linaro.org>'s Acked-by tag.

Changes in v4:
- Use "dt-bindings: mfd:" prefix in subject line (Rob Herring).
- Add information about what functions the device serve (Lee Jones).
- Avoid using MFD in Device Tree (Lee Jones).

Changes in v3: None
Changes in v2: None

 Documentation/devicetree/bindings/mfd/retu.txt | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/retu.txt

diff --git a/Documentation/devicetree/bindings/mfd/retu.txt b/Documentation/devicetree/bindings/mfd/retu.txt
new file mode 100644
index 000000000000..876242394a16
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/retu.txt
@@ -0,0 +1,25 @@
+* Device tree bindings for Nokia Retu and Tahvo multi-function device
+
+Retu and Tahvo are a multi-function devices found on Nokia Internet
+Tablets (770, N800 and N810). The Retu chip provides watchdog timer
+and power button control functionalities while Tahvo chip provides
+USB transceiver functionality.
+
+Required properties:
+- compatible:		"nokia,retu" or "nokia,tahvo"
+- reg:			Specifies the CBUS slave address of the ASIC chip
+- interrupts: 		The interrupt line the device is connected to
+- interrupt-parent:	The parent interrupt controller
+
+Example:
+
+cbus0 {
+	compatible = "i2c-cbus-gpio";
+	...
+	retu: retu@1 {
+		compatible = "nokia,retu";
+		interrupt-parent = <&gpio4>;
+		interrupts = <12 IRQ_TYPE_EDGE_RISING>;
+		reg = <0x1>;
+	};
+};
-- 
2.9.3

[RESEND PATCH v6 2/8] mfd: retu: Drop -mfd suffix from I2C device ID name

[Javier Martinez Canillas]

It's not correct to encode the subsystem in the I2C device name, so
drop the -mfd suffix. To maintain bisect-ability, change driver and
platform code / DTS users in the same patch.

Suggested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>

---

Changes in v6:
- Add Wolfram Sang's Reviewed-by tag.

Changes in v5:
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Tony Lindgren's Acked-by tag.

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/arm/boot/dts/omap2420-n8x0-common.dtsi | 4 ++--
 arch/arm/mach-omap1/board-nokia770.c        | 4 ++--
 drivers/mfd/retu-mfd.c                      | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
index 7e5ffc583c90..1b06430c8013 100644
--- a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
+++ b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
@@ -15,8 +15,8 @@
 				>;
 			#address-cells = <1>;
 			#size-cells = <0>;
-			retu_mfd: retu@1 {
-				compatible = "retu-mfd";
+			retu: retu@1 {
+				compatible = "retu";
 				interrupt-parent = <&gpio4>;
 				interrupts = <12 IRQ_TYPE_EDGE_RISING>;
 				reg = <0x1>;
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index ee8d9f553db4..06243c0b12d2 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -233,10 +233,10 @@ static struct platform_device nokia770_cbus_device = {
 
 static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
 	{
-		I2C_BOARD_INFO("retu-mfd", 0x01),
+		I2C_BOARD_INFO("retu", 0x01),
 	},
 	{
-		I2C_BOARD_INFO("tahvo-mfd", 0x02),
+		I2C_BOARD_INFO("tahvo", 0x02),
 	},
 };
 
diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c
index d4c114abeb75..53e1d386d2c0 100644
--- a/drivers/mfd/retu-mfd.c
+++ b/drivers/mfd/retu-mfd.c
@@ -302,8 +302,8 @@ static int retu_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id retu_id[] = {
-	{ "retu-mfd", 0 },
-	{ "tahvo-mfd", 0 },
+	{ "retu", 0 },
+	{ "tahvo", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, retu_id);
-- 
2.9.3

Re: [RESEND PATCH v6 2/8] mfd: retu: Drop -mfd suffix from I2C device ID name

[Lee Jones]

On Thu, 15 Jun 2017, Javier Martinez Canillas wrote:

> It's not correct to encode the subsystem in the I2C device name, so
> drop the -mfd suffix. To maintain bisect-ability, change driver and
> platform code / DTS users in the same patch.
> 
> Suggested-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> Signed-off-by: Javier Martinez Canillas <javier-0uQlZySMnqxg9hUCZPvPmw@public.gmane.org>
> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Acked-by: Aaro Koskinen <aaro.koskinen-X3B1VOXEql0@public.gmane.org>
> Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
> Reviewed-by: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
> 
> ---
> 
> Changes in v6:
> - Add Wolfram Sang's Reviewed-by tag.
> 
> Changes in v5:
> - Add Rob Herring's Acked-by tag.
> - Add Aaro Koskinen's Acked-by tag.
> - Add Tony Lindgren's Acked-by tag.
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  arch/arm/boot/dts/omap2420-n8x0-common.dtsi | 4 ++--
>  arch/arm/mach-omap1/board-nokia770.c        | 4 ++--
>  drivers/mfd/retu-mfd.c                      | 4 ++--
>  3 files changed, 6 insertions(+), 6 deletions(-)

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

> diff --git a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
> index 7e5ffc583c90..1b06430c8013 100644
> --- a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
> +++ b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
> @@ -15,8 +15,8 @@
>  				>;
>  			#address-cells = <1>;
>  			#size-cells = <0>;
> -			retu_mfd: retu@1 {
> -				compatible = "retu-mfd";
> +			retu: retu@1 {
> +				compatible = "retu";
>  				interrupt-parent = <&gpio4>;
>  				interrupts = <12 IRQ_TYPE_EDGE_RISING>;
>  				reg = <0x1>;
> diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
> index ee8d9f553db4..06243c0b12d2 100644
> --- a/arch/arm/mach-omap1/board-nokia770.c
> +++ b/arch/arm/mach-omap1/board-nokia770.c
> @@ -233,10 +233,10 @@ static struct platform_device nokia770_cbus_device = {
>  
>  static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
>  	{
> -		I2C_BOARD_INFO("retu-mfd", 0x01),
> +		I2C_BOARD_INFO("retu", 0x01),
>  	},
>  	{
> -		I2C_BOARD_INFO("tahvo-mfd", 0x02),
> +		I2C_BOARD_INFO("tahvo", 0x02),
>  	},
>  };
>  
> diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c
> index d4c114abeb75..53e1d386d2c0 100644
> --- a/drivers/mfd/retu-mfd.c
> +++ b/drivers/mfd/retu-mfd.c
> @@ -302,8 +302,8 @@ static int retu_remove(struct i2c_client *i2c)
>  }
>  
>  static const struct i2c_device_id retu_id[] = {
> -	{ "retu-mfd", 0 },
> -	{ "tahvo-mfd", 0 },
> +	{ "retu", 0 },
> +	{ "tahvo", 0 },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(i2c, retu_id);

-- 
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: [RESEND PATCH v6 2/8] mfd: retu: Drop -mfd suffix from I2C device ID name

[Javier Martinez Canillas]

Hello Lee,

On Mon, Jun 19, 2017 at 4:54 PM, Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> wrote:
> On Thu, 15 Jun 2017, Javier Martinez Canillas wrote:
>
>> It's not correct to encode the subsystem in the I2C device name, so
>> drop the -mfd suffix. To maintain bisect-ability, change driver and
>> platform code / DTS users in the same patch.
>>
>> Suggested-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
>> Signed-off-by: Javier Martinez Canillas <javier-0uQlZySMnqxg9hUCZPvPmw@public.gmane.org>
>> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
>> Acked-by: Aaro Koskinen <aaro.koskinen-X3B1VOXEql0@public.gmane.org>
>> Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
>> Reviewed-by: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
>>
>> ---
>>
>> Changes in v6:
>> - Add Wolfram Sang's Reviewed-by tag.
>>
>> Changes in v5:
>> - Add Rob Herring's Acked-by tag.
>> - Add Aaro Koskinen's Acked-by tag.
>> - Add Tony Lindgren's Acked-by tag.
>>
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>  arch/arm/boot/dts/omap2420-n8x0-common.dtsi | 4 ++--
>>  arch/arm/mach-omap1/board-nokia770.c        | 4 ++--
>>  drivers/mfd/retu-mfd.c                      | 4 ++--
>>  3 files changed, 6 insertions(+), 6 deletions(-)
>
> Acked-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

Thanks for the ack, but the idea is you to take the whole series since
the platform maintainers have already acked the patches :)

Best regards,
Javier
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[RESEND PATCH v6 3/8] mfd: retu: Add OF device ID table

[Javier Martinez Canillas]

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have a
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier-0uQlZySMnqxg9hUCZPvPmw@public.gmane.org>
Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Acked-by: Aaro Koskinen <aaro.koskinen-X3B1VOXEql0@public.gmane.org>
Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
Acked-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Reviewed-by: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>

---

Changes in v6:
- Add Wolfram Sang's Reviewed-by tag.

Changes in v5:
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>'s Acked-by tag.
- Add Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>'s Acked-by tag.

Changes in v4:
- Drop -mfd suffix in compatible string (Lee Jones).

Changes in v3:
- Add a vendor prefix to the compatible string (Rob Herring).

Changes in v2:
- Don't use of_match_ptr() to avoid build warning when CONFIG_OF is disabled.

 drivers/mfd/retu-mfd.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c
index 53e1d386d2c0..e7d27b7861c1 100644
--- a/drivers/mfd/retu-mfd.c
+++ b/drivers/mfd/retu-mfd.c
@@ -308,9 +308,17 @@ static const struct i2c_device_id retu_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, retu_id);
 
+static const struct of_device_id retu_of_match[] = {
+	{ .compatible = "nokia,retu" },
+	{ .compatible = "nokia,tahvo" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, retu_of_match);
+
 static struct i2c_driver retu_driver = {
 	.driver		= {
 		.name = "retu-mfd",
+		.of_match_table = retu_of_match,
 	},
 	.probe		= retu_probe,
 	.remove		= retu_remove,
-- 
2.9.3

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[RESEND PATCH v6 5/8] i2c: i2c-cbus-gpio: Add vendor prefix to retu node in example

[Javier Martinez Canillas]

The example contains a device node for a retu device, but
its compatible string doesn't have a vendor prefix.

While being there, drop the -mfd suffix since isn't correct.

Signed-off-by: Javier Martinez Canillas <javier-0uQlZySMnqxg9hUCZPvPmw@public.gmane.org>
Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Acked-by: Aaro Koskinen <aaro.koskinen-X3B1VOXEql0@public.gmane.org>
Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
Reviewed-by: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>

---

Changes in v6:
- Add Wolfram Sang's Reviewed-by tag.

Changes in v5:
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>'s Acked-by tag.

Changes in v4:
- Avoid using MFD in Device Tree (Lee Jones).

Changes in v3: None
Changes in v2: None

 Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt b/Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt
index 8ce9cd2855b5..c143948b2a37 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt
@@ -20,8 +20,8 @@ i2c@0 {
 	#address-cells = <1>;
 	#size-cells = <0>;
 
-	retu-mfd: retu@1 {
-		compatible = "retu-mfd";
+	retu: retu@1 {
+		compatible = "nokia,retu";
 		reg = <0x1>;
 	};
 };
-- 
2.9.3

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[RESEND PATCH v6 4/8] ARM: dts: n8x0: Add vendor prefix to retu node

[Javier Martinez Canillas]

The retu device node doesn't have a vendor prefix
in its compatible string, fix it by adding one.

Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>

---

Changes in v6:
- Add Wolfram Sang's Reviewed-by tag.

Changes in v5:
- Add Rob Herring's Acked-by tag.
- Add Aaro Koskinen's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/arm/boot/dts/omap2420-n8x0-common.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
index 1b06430c8013..91886231e5a8 100644
--- a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
+++ b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
@@ -16,7 +16,7 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			retu: retu@1 {
-				compatible = "retu";
+				compatible = "nokia,retu";
 				interrupt-parent = <&gpio4>;
 				interrupts = <12 IRQ_TYPE_EDGE_RISING>;
 				reg = <0x1>;
-- 
2.9.3

[RESEND PATCH v6 6/8] dt-bindings: mfd: Add TI tps6105x chip bindings

[Javier Martinez Canillas]

There are Device Tree source files defining a device node for the
tps61050/61052 I2C chip but there isn't a binding document for it.

Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>

---

Changes in v6: None
Changes in v5:
- Add Rob Herring's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.

Changes in v4:
- Use "dt-bindings: mfd:" prefix in subject line (Rob Herring).
- Add information about what functions the device serve (Lee Jones).

Changes in v3: None
Changes in v2: None

 Documentation/devicetree/bindings/mfd/tps6105x.txt | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/tps6105x.txt

diff --git a/Documentation/devicetree/bindings/mfd/tps6105x.txt b/Documentation/devicetree/bindings/mfd/tps6105x.txt
new file mode 100644
index 000000000000..93602c7a19c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/tps6105x.txt
@@ -0,0 +1,17 @@
+* Device tree bindings for TI TPS61050/61052 Boost Converters
+
+The TP61050/TPS61052 is a high-power "white LED driver". The
+device provides LED, GPIO and regulator functionalities.
+
+Required properties:
+- compatible:		"ti,tps61050" or "ti,tps61052"
+- reg:			Specifies the I2C slave address
+
+Example:
+
+i2c0 {
+	tps61052@33 {
+		compatible = "ti,tps61052";
+		reg = <0x33>;
+	};
+};
-- 
2.9.3

Re: [RESEND PATCH v6 6/8] dt-bindings: mfd: Add TI tps6105x chip bindings

[Lee Jones]

On Thu, 15 Jun 2017, Javier Martinez Canillas wrote:

> There are Device Tree source files defining a device node for the
> tps61050/61052 I2C chip but there isn't a binding document for it.
> 
> Signed-off-by: Javier Martinez Canillas <javier-0uQlZySMnqxg9hUCZPvPmw@public.gmane.org>
> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
> 
> ---
> 
> Changes in v6: None
> Changes in v5:
> - Add Rob Herring's Acked-by tag.
> - Add Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>'s Acked-by tag.
> 
> Changes in v4:
> - Use "dt-bindings: mfd:" prefix in subject line (Rob Herring).
> - Add information about what functions the device serve (Lee Jones).
> 
> Changes in v3: None
> Changes in v2: None
> 
>  Documentation/devicetree/bindings/mfd/tps6105x.txt | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/tps6105x.txt

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

> diff --git a/Documentation/devicetree/bindings/mfd/tps6105x.txt b/Documentation/devicetree/bindings/mfd/tps6105x.txt
> new file mode 100644
> index 000000000000..93602c7a19c8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/tps6105x.txt
> @@ -0,0 +1,17 @@
> +* Device tree bindings for TI TPS61050/61052 Boost Converters
> +
> +The TP61050/TPS61052 is a high-power "white LED driver". The
> +device provides LED, GPIO and regulator functionalities.
> +
> +Required properties:
> +- compatible:		"ti,tps61050" or "ti,tps61052"
> +- reg:			Specifies the I2C slave address
> +
> +Example:
> +
> +i2c0 {
> +	tps61052@33 {
> +		compatible = "ti,tps61052";
> +		reg = <0x33>;
> +	};
> +};

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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[RESEND PATCH v6 7/8] mfd: tps6105x: Add OF device ID table

[Javier Martinez Canillas]

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have a
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Lee Jones <lee.jones@linaro.org>

---

Changes in v6: None
Changes in v5:
- Add Rob Herring's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.
- Add Lee Jones <lee.jones@linaro.org>'s Acked-by tag.

Changes in v4: None
Changes in v3:
- Add a vendor prefix to the compatible string (Rob Herring).

Changes in v2:
- Don't use of_match_ptr() to avoid build warning when CONFIG_OF is disabled.

 drivers/mfd/tps6105x.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mfd/tps6105x.c b/drivers/mfd/tps6105x.c
index baa12ea666fb..187848c93779 100644
--- a/drivers/mfd/tps6105x.c
+++ b/drivers/mfd/tps6105x.c
@@ -173,9 +173,17 @@ static const struct i2c_device_id tps6105x_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, tps6105x_id);
 
+static const struct of_device_id tps6105x_of_match[] = {
+	{ .compatible = "ti,tps61050" },
+	{ .compatible = "ti,tps61052" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, tps6105x_of_match);
+
 static struct i2c_driver tps6105x_driver = {
 	.driver = {
 		.name	= "tps6105x",
+		.of_match_table = tps6105x_of_match,
 	},
 	.probe		= tps6105x_probe,
 	.remove		= tps6105x_remove,
-- 
2.9.3

[RESEND PATCH v6 8/8] ARM: ux500: Add vendor prefix to tps61052 node

[Javier Martinez Canillas]

The tps61052 device node doesn't have a vendor prefix
in its compatible string, fix it by adding one.

Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>


---

Changes in v6: None
Changes in v5:
- Add Rob Herring's Acked-by tag.
- Add Acked-by: Tony Lindgren <tony@atomide.com>'s Acked-by tag.

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/arm/boot/dts/ste-hrefprev60.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-hrefprev60.dtsi b/arch/arm/boot/dts/ste-hrefprev60.dtsi
index 5882a2606ac3..3f14b4df69b4 100644
--- a/arch/arm/boot/dts/ste-hrefprev60.dtsi
+++ b/arch/arm/boot/dts/ste-hrefprev60.dtsi
@@ -30,7 +30,7 @@
 
 		i2c@80004000 {
 			tps61052@33 {
-				compatible = "tps61052";
+				compatible = "ti,tps61052";
 				reg = <0x33>;
 			};
 
-- 
2.9.3

Re: [RESEND PATCH v6 0/8] mfd: Add OF device table to I2C drivers that are missing it

[Javier Martinez Canillas]

Hello Lee,

On Thu, Jun 15, 2017 at 8:49 PM, Javier Martinez Canillas
<javier@dowhile0.org> wrote:
>
> This series add OF device ID tables to mfd I2C drivers whose devices are
> either used in Device Tree source files or are listed in binding docs as
> a compatible string.
>
> That's done because the plan is to change the I2C core to report proper OF
> modaliases instead of always reporting a MODALIAS=i2c:<foo> regardless if
> a device was registered via DT or using the legacy platform data mechanism.
>
> So these patches will make sure that mfd I2C drivers modules will continue
> to be autoloaded once the I2C core is changed to report proper OF modalias.
>
> Users didn't have a vendor prefix in the used compatible strings, but since
> there wasn't a DT binding document for these drivers, it can be said that
> were working for mere luck and so this series fixes the users and add a DT
> binding doc for the drivers.
>
> Most patches can be applied independently, with the exception of patches
> 2 to 4 that should be applied in the same tree to keep bisect-ability. I
> suggest these to go through the MFD subsystem tree.
>
> Best regards,
> Javier
>

Are you planning to pick this series? It has been in the list for
months and were resent many times...

Best regards,
Javier

Re: [RESEND PATCH v6 0/8] mfd: Add OF device table to I2C drivers that are missing it

[Lee Jones]

On Mon, 10 Jul 2017, Javier Martinez Canillas wrote:

> Hello Lee,
> 
> On Thu, Jun 15, 2017 at 8:49 PM, Javier Martinez Canillas
> <javier@dowhile0.org> wrote:
> >
> > This series add OF device ID tables to mfd I2C drivers whose devices are
> > either used in Device Tree source files or are listed in binding docs as
> > a compatible string.
> >
> > That's done because the plan is to change the I2C core to report proper OF
> > modaliases instead of always reporting a MODALIAS=i2c:<foo> regardless if
> > a device was registered via DT or using the legacy platform data mechanism.
> >
> > So these patches will make sure that mfd I2C drivers modules will continue
> > to be autoloaded once the I2C core is changed to report proper OF modalias.
> >
> > Users didn't have a vendor prefix in the used compatible strings, but since
> > there wasn't a DT binding document for these drivers, it can be said that
> > were working for mere luck and so this series fixes the users and add a DT
> > binding doc for the drivers.
> >
> > Most patches can be applied independently, with the exception of patches
> > 2 to 4 that should be applied in the same tree to keep bisect-ability. I
> > suggest these to go through the MFD subsystem tree.
> >
> > Best regards,
> > Javier
> >
> 
> Are you planning to pick this series? It has been in the list for
> months and were resent many times...

I think you exaggerate a little.  Your last Ack (from Linus) was only
collected in v6, which has only been resent once with that Ack
applied. =:)

We are currently only half way through the merge-window.  This patch
will be hoovered up during the early -rcs.  Please be patient around
the time of the merge-window, since Maintainers are either usually
very busy with pull-requests, or taking a 2 minute breather before
the chaos starts over.

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

Re: [RESEND PATCH v6 0/8] mfd: Add OF device table to I2C drivers that are missing it

[Javier Martinez Canillas]

On Mon, Jul 10, 2017 at 10:07 AM, Lee Jones <lee.jones@linaro.org> wrote:
> On Mon, 10 Jul 2017, Javier Martinez Canillas wrote:
>
>> Hello Lee,
>>
>> On Thu, Jun 15, 2017 at 8:49 PM, Javier Martinez Canillas
>> <javier@dowhile0.org> wrote:
>> >
>> > This series add OF device ID tables to mfd I2C drivers whose devices are
>> > either used in Device Tree source files or are listed in binding docs as
>> > a compatible string.
>> >
>> > That's done because the plan is to change the I2C core to report proper OF
>> > modaliases instead of always reporting a MODALIAS=i2c:<foo> regardless if
>> > a device was registered via DT or using the legacy platform data mechanism.
>> >
>> > So these patches will make sure that mfd I2C drivers modules will continue
>> > to be autoloaded once the I2C core is changed to report proper OF modalias.
>> >
>> > Users didn't have a vendor prefix in the used compatible strings, but since
>> > there wasn't a DT binding document for these drivers, it can be said that
>> > were working for mere luck and so this series fixes the users and add a DT
>> > binding doc for the drivers.
>> >
>> > Most patches can be applied independently, with the exception of patches
>> > 2 to 4 that should be applied in the same tree to keep bisect-ability. I
>> > suggest these to go through the MFD subsystem tree.
>> >
>> > Best regards,
>> > Javier
>> >
>>
>> Are you planning to pick this series? It has been in the list for
>> months and were resent many times...
>
> I think you exaggerate a little.  Your last Ack (from Linus) was only
> collected in v6, which has only been resent once with that Ack
> applied. =:)
>

You are right, sorry for the impatience.

> We are currently only half way through the merge-window.  This patch
> will be hoovered up during the early -rcs.  Please be patient around
> the time of the merge-window, since Maintainers are either usually
> very busy with pull-requests, or taking a 2 minute breather before
> the chaos starts over.
>

Great, I just was worried that it could fell through the cracks.
Thanks for your answer.

Best regards,
Javier

[GIT PULL] Immutable branch between MFD, ARM and I2C due for the v4.14 merge window

[Lee Jones]

Enjoy!

The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877:

  Linux v4.13-rc1 (2017-07-15 15:22:10 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git ib-mfd-arm-i2c-v4.14

for you to fetch changes up to ea5ae803192eb2b03e0bd23db63d2f355fd23eda:

  ARM: ux500: Add vendor prefix to tps61052 node (2017-07-18 08:27:46 +0100)

----------------------------------------------------------------
Immutable branch between MFD, ARM and I2C due for the v4.14 merge window

----------------------------------------------------------------
Javier Martinez Canillas (8):
      dt-bindings: mfd: Add retu/tahvo ASIC chips bindings
      mfd: retu: Drop -mfd suffix from I2C device ID name
      ARM: dts: n8x0: Add vendor prefix to retu node
      mfd: retu: Add OF device ID table
      i2c: i2c-cbus-gpio: Add vendor prefix to retu node in example
      dt-bindings: mfd: Add TI tps6105x chip bindings
      mfd: tps6105x: Add OF device ID table
      ARM: ux500: Add vendor prefix to tps61052 node

 .../devicetree/bindings/i2c/i2c-cbus-gpio.txt      |  4 ++--
 Documentation/devicetree/bindings/mfd/retu.txt     | 25 ++++++++++++++++++++++
 Documentation/devicetree/bindings/mfd/tps6105x.txt | 17 +++++++++++++++
 arch/arm/boot/dts/omap2420-n8x0-common.dtsi        |  4 ++--
 arch/arm/boot/dts/ste-hrefprev60.dtsi              |  2 +-
 arch/arm/mach-omap1/board-nokia770.c               |  4 ++--
 drivers/mfd/retu-mfd.c                             | 12 +++++++++--
 drivers/mfd/tps6105x.c                             |  8 +++++++
 8 files changed, 67 insertions(+), 9 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/retu.txt
 create mode 100644 Documentation/devicetree/bindings/mfd/tps6105x.txt

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

Re: [GIT PULL] Immutable branch between MFD, ARM and I2C due for the v4.14 merge window

[Wolfram Sang]

[-- Attachment #1: Type: text/plain, Size: 363 bytes --]

On Tue, Jul 18, 2017 at 09:04:41AM +0100, Lee Jones wrote:
> Enjoy!
> 
> The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877:
> 
>   Linux v4.13-rc1 (2017-07-15 15:22:10 -0700)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git ib-mfd-arm-i2c-v4.14

Pulled, thanks!


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