From 8083ba606f16f06f4379bcf521609b6ca34a4e06 Mon Sep 17 00:00:00 2001 From: Chen Liangjun Date: Tue, 21 Aug 2012 17:26:24 +0800 Subject: ENGR00182456-2 HDMI AUDIO: register/unregister when audio pcm open/close In this patch: 1. Register substream into HDMI core driver when HDMI audio PCM is open. 2. Unregister substream out of HDMI core driver when HDMI audio PCM is close. Signed-off-by: Chen Liangjun --- sound/soc/imx/imx-hdmi-dma.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'sound') diff --git a/sound/soc/imx/imx-hdmi-dma.c b/sound/soc/imx/imx-hdmi-dma.c index f0afcf1ac52b..70c8cb13d3de 100644 --- a/sound/soc/imx/imx-hdmi-dma.c +++ b/sound/soc/imx/imx-hdmi-dma.c @@ -1195,6 +1195,12 @@ static int hdmi_dma_open(struct snd_pcm_substream *substream) (int)clk_get_rate(hdmi_dma_priv->isfr_clk), (int)clk_get_rate(hdmi_dma_priv->iahb_clk)); + ret = mxc_hdmi_register_audio(substream); + if (ret < 0) { + pr_err("ERROR: HDMI is not ready!\n"); + return ret; + } + hdmi_fifo_reset(); ret = snd_pcm_hw_constraint_integer(substream->runtime, @@ -1215,6 +1221,7 @@ static int hdmi_dma_close(struct snd_pcm_substream *substream) struct imx_hdmi_dma_runtime_data *rtd = runtime->private_data; hdmi_dma_irq_disable(rtd); + mxc_hdmi_unregister_audio(substream); clk_disable(rtd->iahb_clk); clk_disable(rtd->isfr_clk); -- cgit v1.2.3