Re: [PATCH V3 4/9] Documentation: devicetree: mfd: da9062/61 MFD binding

[Lee Jones]

On Mon, 31 Oct 2016, Steve Twiss wrote:

> From: Steve Twiss <stwiss.opensource@xxxxxxxxxxx>
> 
> Extend existing DA9062 binding information to include the DA9061 PMIC for
> MFD core and regulators.
> 
> Add a da9062-onkey link to the existing onkey binding file.
> 
> Add a da9062-thermal link to the new temperature monitoring binding file.
> 
> Delete the da9062-watchdog section and replace it with a link to the new
> DA9061/62 binding information file.
> 
> Signed-off-by: Steve Twiss <stwiss.opensource@xxxxxxxxxxx>
> 
> ---
> This patch applies against linux-next and v4.8
> 
> v2 -> v3
>  - Patch renamed from [PATCH V2 04/10] to [PATCH V3 4/9]
>  - Ensure binding description concentrates on the device not the
>    device driver
>  - Separate the DA9061 and DA9062 sub-device tables to distinguish
>    the difference between the two devices
>  - Update the commit message to describe this change
>  - Add e-mail information about associated patches from this set
>    without describing them as being explicitly dependent on this
>    binding
> 
> v1 -> v2
>  - Patch renamed from [PATCH V1 09/10] to [PATCH V2 04/10] -- these
>    changes were made to fix checkpatch warnings caused by the patch
>    set dependency order
> 
> Hi,
> 
> Other information:
> The device driver from this patch set (associated with this binding) is
> 
> - [PATCH V3 1/9] mfd: da9061: MFD core support
> 
> and also the following binding file changes:
> 
> - [PATCH V3 1/9] Binding for onkey
> - [PATCH V3 2/9] Binding for watchdog
> - [PATCH V3 3/9] Binding for thermal
> 
> Regards,
> Steve Twiss, Dialog Semiconductor Ltd.
> 
> 
>  Documentation/devicetree/bindings/mfd/da9062.txt | 52 ++++++++++++++++++------
>  1 file changed, 40 insertions(+), 12 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/da9062.txt b/Documentation/devicetree/bindings/mfd/da9062.txt
> index 38802b5..56491c3 100644
> --- a/Documentation/devicetree/bindings/mfd/da9062.txt
> +++ b/Documentation/devicetree/bindings/mfd/da9062.txt
> @@ -1,22 +1,39 @@
>  * Dialog DA9062 Power Management Integrated Circuit (PMIC)
>  
> -DA9062 consists of a large and varied group of sub-devices:
> +Product information for the DA9062 and DA9061 devices can be found here:
> +- http://www.dialog-semiconductor.com/products/da9062
> +- http://www.dialog-semiconductor.com/products/da9061
> +
> +The DA9062 PMIC consists of:
>  
>  Device                   Supply Names    Description
>  ------                   ------------    -----------
>  da9062-regulator        :               : LDOs & BUCKs
>  da9062-rtc              :               : Real-Time Clock
> +da9062-onkey            :               : On Key
> +da9062-watchdog         :               : Watchdog Timer
> +da9062-thermal          :               : Thermal
> +
> +The DA9061 PMIC consists of:
> +
> +Device                   Supply Names    Description
> +------                   ------------    -----------
> +da9062-regulator        :               : LDOs & BUCKs
> +da9062-onkey            :               : On Key
>  da9062-watchdog         :               : Watchdog Timer
> +da9062-thermal          :               : Thermal
>  
>  ======
>  
>  Required properties:
>  
> -- compatible : Should be "dlg,da9062".
> +- compatible : Should be
> +    "dlg,da9062" for DA9062
> +    "dlg,da9061" for DA9061
>  - 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 DA9062.
> +  the DA9062 or DA9061.
>  - interrupts : IRQ line information.
>  - interrupt-controller
>  
> @@ -25,8 +42,8 @@ further information on IRQ bindings.
>  
>  Sub-nodes:
>  
> -- regulators : This node defines the settings for the LDOs and BUCKs. The
> -  DA9062 regulators are bound using their names listed below:
> +- regulators : This node defines the settings for the LDOs and BUCKs.
> +  The DA9062 regulators are bound using their names listed below:
>  
>      buck1    : BUCK_1
>      buck2    : BUCK_2
> @@ -37,6 +54,16 @@ Sub-nodes:
>      ldo3     : LDO_3
>      ldo4     : LDO_4
>  
> +  The DA9061 regulators are bound using their names listed below:
> +
> +    buck1    : BUCK_1
> +    buck2    : BUCK_2
> +    buck3    : BUCK_3
> +    ldo1     : LDO_1
> +    ldo2     : LDO_2
> +    ldo3     : LDO_3
> +    ldo4     : LDO_4
> +
>    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
> @@ -46,9 +73,14 @@ Sub-nodes:
>    with the DA9062. There are currently no entries in this binding, however
>    compatible = "dlg,da9062-rtc" should be added if a node is created.
>  
> -- watchdog: This node defines the settings for the watchdog driver associated
> -  with the DA9062 PMIC. The compatible = "dlg,da9062-watchdog" should be added
> -  if a node is created.
> +
> +- onkey : See ../input/da9062-onkey.txt
> +
> +
> +- watchdog: See ../watchdog/da9062-watchdog.txt
> +
> +
> +- thermal : See ../thermal/da9062-thermal.txt

Remove all those extra lines in between.

>  Example:
> @@ -64,10 +96,6 @@ Example:
>  			compatible = "dlg,da9062-rtc";
>  		};
>  
> -		watchdog {
> -			compatible = "dlg,da9062-watchdog";
> -		};
> -

Why don't you include a sub-node per child device and use
of_platform_populate() to register the devices?


>  		regulators {
>  			DA9062_BUCK1: buck1 {
>  				regulator-name = "BUCK1";

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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