From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755835Ab2ILLqy (ORCPT ); Wed, 12 Sep 2012 07:46:54 -0400 Received: from na3sys009aog117.obsmtp.com ([74.125.149.242]:40664 "EHLO na3sys009aog117.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754982Ab2ILLqv (ORCPT ); Wed, 12 Sep 2012 07:46:51 -0400 From: Peter Ujfalusi To: Mark Brown , Liam Girdwood , Tony Lindgren , Russell King , Vinod Koul , Dan Williams , Jarkko Nikula Cc: alsa-devel@alsa-project.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Janusz Krzysztofik , Ricardo Neri Subject: [PATCH 03/11] ASoC: omap-pcm: Select sDMA synchronization based on packet_size Date: Wed, 12 Sep 2012 14:46:59 +0300 Message-Id: <1347450427-27627-4-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 1.7.12 In-Reply-To: <1347450427-27627-1-git-send-email-peter.ujfalusi@ti.com> References: <1347450427-27627-1-git-send-email-peter.ujfalusi@ti.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since we only have element or packet synchronization we can use the dma_data->packet_size to select the desired mode: if packet_size is 0 we use ELEMENT mode if packet_size is not 0 we use PACKET mode for sDMA synchronization. Signed-off-by: Peter Ujfalusi --- sound/soc/omap/omap-pcm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index f0feb06..02eeb2e 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -165,7 +165,12 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream) memset(&dma_params, 0, sizeof(dma_params)); dma_params.data_type = dma_data->data_type; dma_params.trigger = dma_data->dma_req; - dma_params.sync_mode = dma_data->sync_mode; + + if (dma_data->packet_size) + dma_params.sync_mode = OMAP_DMA_SYNC_PACKET; + else + dma_params.sync_mode = OMAP_DMA_SYNC_ELEMENT; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { dma_params.src_amode = OMAP_DMA_AMODE_POST_INC; dma_params.dst_amode = OMAP_DMA_AMODE_CONSTANT; -- 1.7.12