[PATCH 3/3] FIXUP: FROMLIST: ASoC: amd: Report accurate hw_ptr during dma

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On Wed, Nov 8, 2017 at 12:29 PM, Guenter Roeck <groeck at google.com> wrote:
> On Wed, Nov 8, 2017 at 9:24 AM, Alex Deucher <alexdeucher at gmail.com> wrote:
>>
>> From: Guenter Roeck <groeck at chromium.org>
>>
>> ERROR: "__aeabi_uldivmod" [sound/soc/amd/snd-soc-acp-pcm.ko] undefined!
>>
>> 64-bit divides require special operations to avoid build errors on 32-bit
>> systems.
>>
>> BUG=b:63121716
>> TEST="Build i386:allmodconfig"
>>
>
> Is this an upstream submission ? Fine with me, but it should not include any
> chromium specific tags, neither in the subject not in the description.

I'm not familiar with which are chromium specific (TEST, BUG, FIXUP,
FROMLIST I guess?). The info seems useful to have in the bug, but I
can respin if it's a big deal.

Alex

>
> Guenter
>
>>
>> Signed-off-by: Guenter Roeck <groeck at chromium.org>
>> Reviewed-on: https://chromium-review.googlesource.com/678919
>> Reviewed-by: Jason Clinton <jclinton at chromium.org>
>> (cherry picked from commit 7ca726e80f21abdbaed9a5a70def1c33a26f8533)
>> Reviewed-on: https://chromium-review.googlesource.com/681618
>> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
>> ---
>>  sound/soc/amd/acp-pcm-dma.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
>> index 13d040a4d26f..ef7e98ad960c 100644
>> --- a/sound/soc/amd/acp-pcm-dma.c
>> +++ b/sound/soc/amd/acp-pcm-dma.c
>> @@ -856,12 +856,11 @@ static snd_pcm_uframes_t acp_dma_pointer(struct
>> snd_pcm_substream *substream)
>>         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
>>                 if (bytescount > rtd->renderbytescount)
>>                         bytescount = bytescount - rtd->renderbytescount;
>> -               pos =  bytescount % buffersize;
>>         } else {
>>                 if (bytescount > rtd->capturebytescount)
>>                         bytescount = bytescount - rtd->capturebytescount;
>> -               pos = bytescount % buffersize;
>>         }
>> +       pos = do_div(bytescount, buffersize);
>>         return bytes_to_frames(runtime, pos);
>>  }
>>
>> --
>> 2.13.6
>>
>


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