From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Subject: [PATCH 1/5] ASoC: Add support for machine specific trigger callback Date: Mon, 28 Apr 2014 14:17:52 +0200 Message-ID: <1398687476-10829-1-git-send-email-sr@denx.de> Return-path: Received: from mo4-p05-ob.smtp.rzone.de ([81.169.146.183]:59617 "EHLO mo4-p05-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751874AbaD1MXx (ORCPT ); Mon, 28 Apr 2014 08:23:53 -0400 Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: alsa-devel@alsa-project.org, linux-omap@vger.kernel.org Cc: broonie@kernel.org, Jarkko Nikula From: Jarkko Nikula Machine specific trigger callback allows to do final stream start/stop related operations in a machine driver after setting up the codec, DMA and DAI. One example could be clock management for linked streams case where machine driver can start/stop synchronously the linked streams. Signed-off-by: Jarkko Nikula Signed-off-by: Stefan Roese --- sound/soc/soc-pcm.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 2cedf09..a3a7021 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -819,6 +819,13 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) if (ret < 0) return ret; } + + if (rtd->dai_link->ops && rtd->dai_link->ops->trigger) { + ret = rtd->dai_link->ops->trigger(substream, cmd); + if (ret < 0) + return ret; + } + return 0; } -- 1.9.1