linux-kernel - Re: [PATCH v4 1/4] dt-bindings: mfd: s2mps11: add documentation for s2mps15 PMIC

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Date:	Thu, 29 Oct 2015 14:57:11 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Alim Akhtar <alim.akhtar@...sung.com>, lee.jones@...aro.org,
	broonie@...nel.org
Cc:	linux-samsung-soc@...r.kernel.org, rtc-linux@...glegroups.com,
	linux-kernel@...r.kernel.org,
	Thomas Abraham <thomas.ab@...sung.com>,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v4 1/4] dt-bindings: mfd: s2mps11: add documentation for
 s2mps15 PMIC

On 29.10.2015 13:58, Alim Akhtar wrote:
> From: Thomas Abraham <thomas.ab@...sung.com>
> 
> Add dt-binding documentation for s2mps15 PMIC device. The s2mps15 device
> is similar to s2mps11/14 PMIC device and has 27 LDO and 10 buck regulators.
> 
> Cc: devicetree@...r.kernel.org
> Signed-off-by: Thomas Abraham <thomas.ab@...sung.com>
> Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> Acked-by: Lee Jones <lee.jones@...aro.org>
> ---
>  Documentation/devicetree/bindings/mfd/s2mps11.txt |   23 ++++++++++++++-------
>  1 file changed, 15 insertions(+), 8 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/s2mps11.txt b/Documentation/devicetree/bindings/mfd/s2mps11.txt
> index 890f0b0e1643..c0427c9d0886 100644
> --- a/Documentation/devicetree/bindings/mfd/s2mps11.txt
> +++ b/Documentation/devicetree/bindings/mfd/s2mps11.txt
> @@ -1,5 +1,5 @@
>  
> -* Samsung S2MPS11, S2MPS13, S2MPS14 and S2MPU02 Voltage and Current Regulator
> +* Samsung S2MPS11/13/14/15 and S2MPU02 Voltage and Current Regulator
>  
>  The Samsung S2MPS11 is a multi-function device which includes voltage and
>  current regulators, RTC, charger controller and other sub-blocks. It is
> @@ -7,8 +7,12 @@ interfaced to the host controller using an I2C interface. Each sub-block is
>  addressed by the host system using different I2C slave addresses.
>  
>  Required properties:
> -- compatible: Should be "samsung,s2mps11-pmic" or "samsung,s2mps13-pmic"
> -	      or "samsung,s2mps14-pmic" or "samsung,s2mpu02-pmic".
> +- compatible: Should be one of the following
> +	- "samsung,s2mps11-pmic"
> +	- "samsung,s2mps13-pmic"
> +	- "samsung,s2mps14-pmic"
> +	- "samsung,s2mps15-pmic"
> +	- "samsung,s2mpu02-pmic".
>  - reg: Specifies the I2C slave address of the pmic block. It should be 0x66.
>  
>  Optional properties:
> @@ -24,7 +28,7 @@ Optional properties:
>    unwanted buck warm reset (setting buck voltages to default values).
>  
>  Optional nodes:
> -- clocks: s2mps11, s2mps13 and s5m8767 provide three(AP/CP/BT) buffered 32.768
> +- clocks: s2mps11, s2mps13, s2mps15 and s5m8767 provide three(AP/CP/BT) buffered 32.768
>    KHz outputs, so to register these as clocks with common clock framework
>    instantiate a sub-node named "clocks". It uses the common clock binding
>    documented in :
> @@ -37,12 +41,13 @@ Optional nodes:
>      the clock which they consume.
>      Clock               ID           Devices
>      ----------------------------------------------------------
> -    32KhzAP		0            S2MPS11, S2MPS13, S2MPS14, S5M8767
> -    32KhzCP		1            S2MPS11, S2MPS13, S5M8767
> -    32KhzBT		2            S2MPS11, S2MPS13, S2MPS14, S5M8767
> +    32KhzAP		0            S2MPS11, S2MPS13, S2MPS14, S2MPS15, S5M8767
> +    32KhzCP		1            S2MPS11, S2MPS13, S2MPS15, S5M8767
> +    32KhzBT		2            S2MPS11, S2MPS13, S2MPS14, S2MPS15, S5M8767
>  
>    - compatible: Should be one of: "samsung,s2mps11-clk", "samsung,s2mps13-clk",
> -		"samsung,s2mps14-clk", "samsung,s5m8767-clk"
> +		"samsung,s2mps14-clk", "samsung,s2mps15-clk",
> +		"samsung,s5m8767-clk"

Noooo. Why "samsung,s2mps15-clk"?

Adding a new compatible to bindings is a major change so my review tag
(from v1 where there was no such compatible) should be dropped. Please
drop it.

Best regards,
Krzysztof

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