linux-kernel - Re: [PATCH v2 3/7] QE: Add uqe

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Message-ID: <20160223202342.GA9008@rob-hp-laptop>
Date:	Tue, 23 Feb 2016 14:23:42 -0600
From:	Rob Herring <robh@...nel.org>
To:	Zhao Qiang <qiang.zhao@....com>
Cc:	oss@...error.net, leoyang.li@....com, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v2 3/7] QE: Add uqe_serial document to bindings

On Thu, Feb 18, 2016 at 09:06:08AM +0800, Zhao Qiang wrote:
> Add uqe_serial document to
> Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
> 
> Signed-off-by: Zhao Qiang <qiang.zhao@....com>
> ---
> Changes for v2
> 	- modify tx/rx-clock-name specification
> 
>  .../bindings/powerpc/fsl/cpm_qe/uqe_serial.txt        | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
> 
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
> new file mode 100644
> index 0000000..436c71c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
> @@ -0,0 +1,19 @@
> +* Serial
> +
> +Currently defined compatibles:
> +- ucc_uart
> +
> +Properties for ucc_uart:
> +port-number : port number of UCC-UART

How is this used?

> +tx/rx-clock-name : should be "brg1"-"brg16" for internal clock source,
> +		   should be "clk1"-"clk28" for external clock source.

Perhaps you should be using the clock binding here and in other 
bindings?

> +
> +Example:
> +
> +	ucc_serial: ucc@...0 {
> +		device_type = "serial";
> +		compatible = "ucc_uart";
> +		port-number = <1>;
> +		rx-clock-name = "brg2";
> +		tx-clock-name = "brg2";
> +	};
> -- 
> 2.1.0.27.g96db324
> 
> --
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