linux-kernel - Re: [PATCH] Documentation: dt: bindings: TI WiLink modules

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Message-ID: <20130625111234.GJ15407@arwen.pp.htv.fi>
Date:	Tue, 25 Jun 2013 14:12:34 +0300
From:	Felipe Balbi <balbi@...com>
To:	Luciano Coelho <coelho@...com>
CC:	<grant.likely@...aro.org>, <rob.herring@...xeda.com>,
	<devicetree-discuss@...ts.ozlabs.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-wireless@...r.kernel.org>,
	<tony@...mide.com>, <linux-omap@...r.kernel.org>,
	<linux-arm@...r.kernel.org>
Subject: Re: [PATCH] Documentation: dt: bindings: TI WiLink modules

Hi,

On Tue, Jun 25, 2013 at 11:35:30AM +0300, Luciano Coelho wrote:
> Add device tree bindings documentation for the TI WiLink modules.
> Currently only the WLAN part of the WiLink6, WiLink7 and WiLink8
> modules is supported.
> 
> Signed-off-by: Luciano Coelho <coelho@...com>
> ---
> 
> I created a new directory under net to contain wireless bindings documentation.
> 
> The actual implementation in the driver will follow separately.
> 
>  .../devicetree/bindings/net/wireless/ti-wilink.txt |   46 ++++++++++++++++++++
>  1 file changed, 46 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/wireless/ti-wilink.txt
> 
> diff --git a/Documentation/devicetree/bindings/net/wireless/ti-wilink.txt b/Documentation/devicetree/bindings/net/wireless/ti-wilink.txt
> new file mode 100644
> index 0000000..d8e8bfbb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/wireless/ti-wilink.txt
> @@ -0,0 +1,46 @@
> +TI WiLink Wireless Modules Device Tree Bindings
> +===============================================
> +
> +The WiLink modules provide wireless connectivity, such as WLAN,
> +Bluetooth, FM and NFC.
> +
> +There are several different modules available, which can be grouped by
> +their generation: WiLink6, WiLink7 and WiLink8.  WiLink4 is not
> +currently supported with device tree.
> +
> +Currently, only the WLAN portion of the modules is supported with
> +device tree.
> +
> +Required properties:
> +--------------------
> +
> +- compatible: should be "ti,wilink6", "ti,wilink7" or "ti,wilink8"
> +- interrupt-parent: the interrupt controller
> +- interrupts: out-of-band WLAN interrupt
> +	See the interrupt controller's bindings documentation for
> +	detailed definition.
> +
> +Optional properties:
> +--------------------
> +
> +- refclock: the internal WLAN reference clock frequency (required for
> +  WiLink6 and WiLink7; not used for WiLink8).  Must be one of the
> +  following:
> +	0 = 19.2 MHz
> +	1 = 26.0 MHz
> +	2 = 38.4 MHz
> +	3 = 52.0 MHz
> +	4 = 38.4 MHz, XTAL
> +	5 = 26.0 MHz, XTAL
> +
> +- tcxoclock: the internal WLAN TCXO clock frequency (required for
> +  WiLink7 not used for WiLink6 and WiLink8).  Must be one of the
> +  following:
> +	0 = 19.200 MHz
> +	1 = 26.000 MHz
> +	2 = 38.400 MHz
> +	3 = 52.000 MHz
> +	4 = 16.368 MHz
> +	5 = 32.736 MHz
> +	6 = 16.800 MHz
> +	7 = 33.600 MHz

DTS files are pre-processed, so you could add defines in a header and
share the header between DTS and driver. Could help you having:

tcxoclock = WILINK_19_200MHz;

instead of

tcxoclock = 0;

-- 
balbi

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