linux-kernel - Re: [PATCH v1 01/11] ARM: amba: Add Qualcomm vendor ID.

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Message-ID: <53764045.5090603@codeaurora.org>
Date:	Fri, 16 May 2014 09:43:49 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Linus Walleij <linus.walleij@...aro.org>
CC:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Russell King <linux@....linux.org.uk>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	Chris Ball <chris@...ntf.net>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	agross@...cinc.com,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v1 01/11] ARM: amba: Add Qualcomm vendor ID.

On 05/16/14 09:24, Linus Walleij wrote:
> On Wed, May 14, 2014 at 12:13 AM, Stephen Boyd <sboyd@...eaurora.org> wrote:
>
>> Please add a note that this id is fake in the commit text or in
>> the code as well.
> You just need one of your hardware engineers to add is to one instance
> of some test chip round so it exists in any hardware whatsoever and it
> is not "fake" anymore...
>
> This is a bit like device tree, it's defined by the kernel community as much
> as by the hardware engineers and it's a little bit of back-and-forth.
>

Sure, but hardware teams have moved on from this IP so I doubt we can
even get them to put it into a test chip. In fact, the devices a
generation before the ones Srini is working on (msm8660 for example)
have a periph ID of 0x41180 so we need to override that ID in DT with
this fake ID for things to even work.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by The Linux Foundation

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