diff mbox

[2/3] mfd: Add DT binding for Maxim MAX77802 IC

Message ID 1436773348-15316-3-git-send-email-javier@osg.samsung.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Javier Martinez Canillas July 13, 2015, 7:42 a.m. UTC 
The MAX77802 is a chip that contains regulators, 2 32kHz clocks,
a RTC and an I2C interface to program the individual components.

The are already DT bindings for the regulators and clocks and
these reference to a bindings/mfd/max77802.txt file, that didn't
exist, for the details about the PMIC.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
---

 Documentation/devicetree/bindings/mfd/max77802.txt | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/max77802.txt

Comments

Krzysztof Kozlowski July 13, 2015, 7:53 a.m. UTC | #1 
On 13.07.2015 16:42, Javier Martinez Canillas wrote:
> The MAX77802 is a chip that contains regulators, 2 32kHz clocks,
> a RTC and an I2C interface to program the individual components.
> 
> The are already DT bindings for the regulators and clocks and
> these reference to a bindings/mfd/max77802.txt file, that didn't
> exist, for the details about the PMIC.
> 
> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
> ---
> 
>  Documentation/devicetree/bindings/mfd/max77802.txt | 26 ++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/max77802.txt

I wonder what happened with previous email...
http://www.spinics.net/lists/kernel/msg1784726.html

> 
> diff --git a/Documentation/devicetree/bindings/mfd/max77802.txt b/Documentation/devicetree/bindings/mfd/max77802.txt
> new file mode 100644
> index 000000000000..875ebebbc5b0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/max77802.txt
> @@ -0,0 +1,26 @@
> +Maxim MAX77802 multi-function device
> +
> +The Maxim MAX77802 is a power management chip (PMIC) that contains 10 high
> +efficiency Buck regulators, 32 Low-dropout (LDO) regulators used to power
> +up application processors and peripherals, a 2-channel 32kHz clock outputs,
> +a Real-Time-Clock (RTC) and a I2C interface to program the individual
> +regulators, clocks outputs and the RTC.
> +
> +Binding for the built-in 32k clock generator block is defined separately
> +in the bindings/clk/maxim,max77802.txt file and binding for the regulators
> +is defined in the bindings/regulator/max77802.txt file.
> +
> +Required properties:
> +- compatible : Must be "maxim,max77686";

Shouldn't this be 77802?

Best regards,
Krzysztof

> +- reg : Specifies the i2c slave address of PMIC block.
> +- interrupts : This i2c device has an IRQ line connected to the main SoC.
> +- interrupt-parent : The parent interrupt controller.
> +
> +Example:
> +
> +	max77802@09 {
> +		compatible = "maxim,max77802";
> +		interrupt-parent = <&intc>;
> +		interrupts = <26 0>;
> +		reg = <0x09>;
> +	};
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Javier Martinez Canillas July 13, 2015, 8:11 a.m. UTC | #2 
Hello Krzysztof,

Thanks a lot for the feedback.

On 07/13/2015 09:53 AM, Krzysztof Kozlowski wrote:
> On 13.07.2015 16:42, Javier Martinez Canillas wrote:
>> The MAX77802 is a chip that contains regulators, 2 32kHz clocks,
>> a RTC and an I2C interface to program the individual components.
>>
>> The are already DT bindings for the regulators and clocks and
>> these reference to a bindings/mfd/max77802.txt file, that didn't
>> exist, for the details about the PMIC.
>>
>> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
>> ---
>>
>>  Documentation/devicetree/bindings/mfd/max77802.txt | 26 ++++++++++++++++++++++
>>  1 file changed, 26 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/mfd/max77802.txt
> 
> I wonder what happened with previous email...
> http://www.spinics.net/lists/kernel/msg1784726.html
>

The story is that in v9 I split the series to add the max77802 clock and
regulators support as different series to avoid the cross subsystem churn:

[PATCH v9 0/6] Add Maxim 77802 clocks support
https://lwn.net/Articles/608834/

[PATCH v9 0/2] Add Maxim 77802 regulator support
https://lkml.org/lkml/2014/8/18/71

But then forgot to add the common DT binding for the PMIC in bindings/mfd...

>>
>> diff --git a/Documentation/devicetree/bindings/mfd/max77802.txt b/Documentation/devicetree/bindings/mfd/max77802.txt
>> new file mode 100644
>> index 000000000000..875ebebbc5b0
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mfd/max77802.txt
>> @@ -0,0 +1,26 @@
>> +Maxim MAX77802 multi-function device
>> +
>> +The Maxim MAX77802 is a power management chip (PMIC) that contains 10 high
>> +efficiency Buck regulators, 32 Low-dropout (LDO) regulators used to power
>> +up application processors and peripherals, a 2-channel 32kHz clock outputs,
>> +a Real-Time-Clock (RTC) and a I2C interface to program the individual
>> +regulators, clocks outputs and the RTC.
>> +
>> +Binding for the built-in 32k clock generator block is defined separately
>> +in the bindings/clk/maxim,max77802.txt file and binding for the regulators
>> +is defined in the bindings/regulator/max77802.txt file.
>> +
>> +Required properties:
>> +- compatible : Must be "maxim,max77686";
> 
> Shouldn't this be 77802?
>

right, thanks for pointing out this. It is a copy & paste error. I'll wait a
couple of days for more feedback and re-post.

> Best regards,
> Krzysztof
> 

Best regards,
Sergei Shtylyov July 13, 2015, 1:11 p.m. UTC | #3 
Hello.

On 7/13/2015 10:42 AM, Javier Martinez Canillas wrote:

> The MAX77802 is a chip that contains regulators, 2 32kHz clocks,
> a RTC and an I2C interface to program the individual components.

> The are already DT bindings for the regulators and clocks and
> these reference to a bindings/mfd/max77802.txt file, that didn't
> exist, for the details about the PMIC.

> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
> ---
>
>   Documentation/devicetree/bindings/mfd/max77802.txt | 26 ++++++++++++++++++++++
>   1 file changed, 26 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/mfd/max77802.txt

> diff --git a/Documentation/devicetree/bindings/mfd/max77802.txt b/Documentation/devicetree/bindings/mfd/max77802.txt
> new file mode 100644
> index 000000000000..875ebebbc5b0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/max77802.txt
> @@ -0,0 +1,26 @@
> +Maxim MAX77802 multi-function device
> +
> +The Maxim MAX77802 is a power management chip (PMIC) that contains 10 high
> +efficiency Buck regulators, 32 Low-dropout (LDO) regulators used to power
> +up application processors and peripherals, a 2-channel 32kHz clock outputs,
> +a Real-Time-Clock (RTC) and a I2C interface to program the individual
> +regulators, clocks outputs and the RTC.
> +
> +Binding for the built-in 32k clock generator block is defined separately
> +in the bindings/clk/maxim,max77802.txt file and binding for the regulators
> +is defined in the bindings/regulator/max77802.txt file.
> +
> +Required properties:
> +- compatible : Must be "maxim,max77686";
> +- reg : Specifies the i2c slave address of PMIC block.
> +- interrupts : This i2c device has an IRQ line connected to the main SoC.
> +- interrupt-parent : The parent interrupt controller.
> +
> +Example:
> +
> +	max77802@09 {

    Sigh, I'm tired of saying this over and over again: please don't name the 
nodes with teh chip names. The ePAPR standard says: "The name of a node should 
be somewhat generic, reflecting the function of the device and not its 3 
precise programming model."

WBR, Sergei

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Javier Martinez Canillas July 13, 2015, 1:26 p.m. UTC | #4 
Hello Sergei,

On 07/13/2015 03:11 PM, Sergei Shtylyov wrote:
> Hello.
> 
> On 7/13/2015 10:42 AM, Javier Martinez Canillas wrote:
> 
>> The MAX77802 is a chip that contains regulators, 2 32kHz clocks,
>> a RTC and an I2C interface to program the individual components.
> 
>> The are already DT bindings for the regulators and clocks and
>> these reference to a bindings/mfd/max77802.txt file, that didn't
>> exist, for the details about the PMIC.
> 
>> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
>> ---
>>
>>   Documentation/devicetree/bindings/mfd/max77802.txt | 26 ++++++++++++++++++++++
>>   1 file changed, 26 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/mfd/max77802.txt
> 
>> diff --git a/Documentation/devicetree/bindings/mfd/max77802.txt b/Documentation/devicetree/bindings/mfd/max77802.txt
>> new file mode 100644
>> index 000000000000..875ebebbc5b0
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mfd/max77802.txt
>> @@ -0,0 +1,26 @@
>> +Maxim MAX77802 multi-function device
>> +
>> +The Maxim MAX77802 is a power management chip (PMIC) that contains 10 high
>> +efficiency Buck regulators, 32 Low-dropout (LDO) regulators used to power
>> +up application processors and peripherals, a 2-channel 32kHz clock outputs,
>> +a Real-Time-Clock (RTC) and a I2C interface to program the individual
>> +regulators, clocks outputs and the RTC.
>> +
>> +Binding for the built-in 32k clock generator block is defined separately
>> +in the bindings/clk/maxim,max77802.txt file and binding for the regulators
>> +is defined in the bindings/regulator/max77802.txt file.
>> +
>> +Required properties:
>> +- compatible : Must be "maxim,max77686";
>> +- reg : Specifies the i2c slave address of PMIC block.
>> +- interrupts : This i2c device has an IRQ line connected to the main SoC.
>> +- interrupt-parent : The parent interrupt controller.
>> +
>> +Example:
>> +
>> +    max77802@09 {
> 
>    Sigh, I'm tired of saying this over and over again: please don't name the nodes with teh chip names. The ePAPR standard says: "The name of a node should be somewhat generic, reflecting the function of the device and not its 3 precise programming model."
> 

Ok, I'll change this to be pmic@ when re-spinning the patches.

> WBR, Sergei
> 

Best regards,
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/mfd/max77802.txt b/Documentation/devicetree/bindings/mfd/max77802.txt
new file mode 100644
index 000000000000..875ebebbc5b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/max77802.txt
@@ -0,0 +1,26 @@ 
+Maxim MAX77802 multi-function device
+
+The Maxim MAX77802 is a power management chip (PMIC) that contains 10 high
+efficiency Buck regulators, 32 Low-dropout (LDO) regulators used to power
+up application processors and peripherals, a 2-channel 32kHz clock outputs,
+a Real-Time-Clock (RTC) and a I2C interface to program the individual
+regulators, clocks outputs and the RTC.
+
+Binding for the built-in 32k clock generator block is defined separately
+in the bindings/clk/maxim,max77802.txt file and binding for the regulators
+is defined in the bindings/regulator/max77802.txt file.
+
+Required properties:
+- compatible : Must be "maxim,max77686";
+- reg : Specifies the i2c slave address of PMIC block.
+- interrupts : This i2c device has an IRQ line connected to the main SoC.
+- interrupt-parent : The parent interrupt controller.
+
+Example:
+
+	max77802@09 {
+		compatible = "maxim,max77802";
+		interrupt-parent = <&intc>;
+		interrupts = <26 0>;
+		reg = <0x09>;
+	};