linux-kernel - Re: [PATCH Resend 1/1] mfd: davinci_voicecodec: Convert to use devm

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Date:	Tue, 18 Jun 2013 14:53:37 +0530
From:	Sachin Kamat <sachin.kamat@...aro.org>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, lee.jones@...aro.org
Subject: Re: [PATCH Resend 1/1] mfd: davinci_voicecodec: Convert to use devm_* APIs

On 18 June 2013 14:47, Samuel Ortiz <sameo@...ux.intel.com> wrote:
> On Tue, Jun 18, 2013 at 02:13:48PM +0530, Sachin Kamat wrote:
>> Hi Samuel,
>>
>> On 18 June 2013 14:10, Samuel Ortiz <sameo@...ux.intel.com> wrote:
>> > Hi Sachin,
>> >
>> > On Wed, Jun 12, 2013 at 01:49:42PM +0530, Sachin Kamat wrote:
>> >> devm_* APIs are device managed and make code simpler.
>> >>
>> >> Signed-off-by: Sachin Kamat <sachin.kamat@...aro.org>
>> >> Cc: Miguel Aguilar <miguel.aguilar@...gerun.com>
>> >> ---
>> >> CC'd Lee Jones
>> >>
>> >> Patch is based on mfd-next tree and compile tested.
>> >> This driver gives following compilation error (not introduced by this patch):
>> >> drivers/mfd/davinci_voicecodec.c:86:3: error: implicit declaration
>> >> of function ‘io_v2p’ [-Werror=implicit-function-declaration]
>> >>    (dma_addr_t)(io_v2p(davinci_vc->base) + DAVINCI_VC_WFIFO);
>> >>
>> >> In order to test my changes I added the following to davinci_voicecodec.h file:
>> >> +#define IO_OFFSET      0xfd000000 /* Virtual IO = 0xfec00000 */
>> >> +#define io_v2p(va)     ((va) - IO_OFFSET)
>> >>
>> >> I am not sure if these changes are right fix for the above error.
>> > io_v2p is define in davinci's mach/hardware.h so I believe this is what
>> > you should include in davinci_voicecodec.h.
>>
>> Thanks. That was only required for compile testing my patch.
>> Does the patch look good?
> Yes, but I'd appreciate if you could also fix the driver build failures
> as well.

OK. I will send the fix for build error as well.
However I was wondering if it is ok to include <mach/*> header
considering multiplatform support.
I am unsure in this case, hence just asking.

-- 
With warm regards,
Sachin
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