linux-kernel - Re: [PATCH v5 4/8] Documentation: bindings: add dt documentation for dfi controller

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Date:	Wed, 10 Aug 2016 13:29:14 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Lin Huang <hl@...k-chips.com>, heiko@...ech.de
Cc:	myungjoo.ham@...sung.com, mark.yao@...k-chips.com,
	airlied@...ux.ie, mturquette@...libre.com, dbasehore@...omium.org,
	sboyd@...eaurora.org, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, dianders@...omium.org,
	linux-rockchip@...ts.infradead.org, kyungmin.park@...sung.com,
	linux-arm-kernel@...ts.infradead.org, tixy@...aro.org,
	typ@...k-chips.com, sudeep.holla@....com, mark.rutland@....com,
	linux-pm@...r.kernel.org
Subject: Re: [PATCH v5 4/8] Documentation: bindings: add dt documentation for
 dfi controller

Hi Lin,

On 2016년 08월 10일 12:26, Lin Huang wrote:
> This patch adds the documentation for rockchip dfi devfreq-event driver.
> 
> Signed-off-by: Lin Huang <hl@...k-chips.com>
> ---
> Changes in v5:
> -None
> 
> Changes in v4:
> -None
> 
> Changes in v3:
> -None
> 
> Changes in v2:
> -None 
> 
> Changes in v1:
> -None
> 
>  .../bindings/devfreq/event/rockchip-dfi.txt          | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
> 
> diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
> new file mode 100644
> index 0000000..bf42255
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
> @@ -0,0 +1,20 @@
> +
> +* Rockchip rk3399 DFI device
> +
> +Required properties:
> +- compatible: Must be "rockchip,rk3399-dfi".
> +- reg: physical base address of each DFI and length of memory mapped region
> +- rockchip,pmu: phandle to the syscon managing the "pmu general register files"
> +- clocks: phandles for clock specified in "clock-names" property
> +- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon";
> +
> +Example:
> +	dfi: dfi@...f630000 {
> +		reg = <0x00 0xff630000 0x00 0x4000>;
> +		compatible = "rockchip,rk3399-dfi";

Usually, the compatible is first entry within Device-tree node.

> +		rockchip,pmu = <&pmugrf>;
> +		clocks = <&cru PCLK_DDR_MON>;
> +		clock-names = "pclk_ddr_mon";
> +		status = "disabled";
> +	};
> +
> 

Looks good to me. Just I want to change the sequence
between 'compatible' and 'reg' property.

Acked-by: Chanwoo Choi <cw00.choi@...sung.com>

Regards,
Chawnoo Choi