ASoC: amd: use do_div rather than 64 bit division to fix 32 bit builds

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.

[Reword the commit message to make it clearer - Alex]

fixes: 61add8147942 (ASoC: amd: Report accurate hw_ptr during dma)
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/678919
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/681618
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 1 insertions, 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);
 }