linux-kernel - Re: [PATCH v8 6/9] mailbox: Add NVIDIA Tegra XUSB mailbox binding

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Date:	Fri, 8 May 2015 13:53:36 -0700
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Benson Leung <bleung@...omium.org>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jon Hunter <jonathanh@...dia.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Jassi Brar <jassisinghbrar@...il.com>
Subject: Re: [PATCH v8 6/9] mailbox: Add NVIDIA Tegra XUSB mailbox binding

On Fri, May 8, 2015 at 1:42 PM, Benson Leung <bleung@...omium.org> wrote:
> On Mon, May 4, 2015 at 10:36 AM, Andrew Bresticker
> <abrestic@...omium.org> wrote:
>> + - compatible: For Tegra124, must contain "nvidia,tegra124-xusb-mbox".
>> +   Otherwise, must contain '"nvidia,<chip>-xusb-mbox",
>> +   "nvidia,tegra124-xusb-mbox"' where <chip> is tegra132.
>
> The driver doesn't seem to have any particular entry for tegra132, so
> that would be a bad example.

The convention on Tegra is to use "nvidia,<chip>-<ip>" for each IP
block.  Additionally, since the XUSB-related blocks on Tegra132 are
identical to Tegra124, these devices on Tegra132 are 'compatible' with
their Tegra124 variants.

For some context, see Paul's comments in commit 193c9d23
("Documentation: DT bindings: add more Tegra chip compatible
strings").

Thanks,
Andrew
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