linux-kernel - Re: [PATCH v5] ARM: imx: Add basic imx6q cpu thermal management

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Message-ID: <CAMXH7KHJ5LHCZM2iY_mRm=1L2B5cdxPD_B0htRwX_1HBfn1oxQ@mail.gmail.com>
Date:	Wed, 20 Jun 2012 09:33:05 -0500
From:	Rob Lee <rob.lee@...aro.org>
To:	Sascha Hauer <s.hauer@...gutronix.de>
Cc:	kernel@...gutronix.de, shawn.guo@...aro.org,
	linux@....linux.org.uk, richard.zhao@...escale.com,
	dirk.behme@...bosch.com, amit.kachhap@...aro.org,
	amit.kucheria@...aro.org, lenb@...nel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linaro-dev@...ts.linaro.org, patches@...aro.org
Subject: Re: [PATCH v5] ARM: imx: Add basic imx6q cpu thermal management

On Wed, Jun 20, 2012 at 9:20 AM, Sascha Hauer <s.hauer@...gutronix.de> wrote:
> On Wed, Jun 20, 2012 at 09:12:51AM -0500, Rob Lee wrote:
>> Sascha, thanks for the review.
>>
>> >> +
>> >> +static struct imx6q_thermal_zone     *th_zone;
>> >> +static void __iomem                  *ocotp_base;
>> >
>> > This is a driver and drivers should generally be multi instance safe.
>> >
>>
>> I don't understand what this comment is referring to.  Could you elaborate?
>
> Drivers can only be multi instance safe when all variables are inside a
> instance specific struct and you pass a pointer to this struct around.
> What if the i.MX7 has two different ocotp_base and you want to use this
> driver on both ocotp?
>

Understood, thanks.  I'll fix this in v6.

> Sascha
>
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