From 863981e96738983919de841ec669e157e6bdaeb0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Sun, 11 Sep 2016 04:34:46 -0300 Subject: Linux-libre 4.7.1-gnu --- sound/soc/omap/mcbsp.c | 8 ++++++++ sound/soc/omap/omap-pcm.c | 2 ++ 2 files changed, 10 insertions(+) (limited to 'sound/soc/omap') diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c index c7563e230..4a16e7789 100644 --- a/sound/soc/omap/mcbsp.c +++ b/sound/soc/omap/mcbsp.c @@ -260,6 +260,10 @@ static void omap_st_on(struct omap_mcbsp *mcbsp) if (mcbsp->pdata->enable_st_clock) mcbsp->pdata->enable_st_clock(mcbsp->id, 1); + /* Disable Sidetone clock auto-gating for normal operation */ + w = MCBSP_ST_READ(mcbsp, SYSCONFIG); + MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w & ~(ST_AUTOIDLE)); + /* Enable McBSP Sidetone */ w = MCBSP_READ(mcbsp, SSELCR); MCBSP_WRITE(mcbsp, SSELCR, w | SIDETONEEN); @@ -279,6 +283,10 @@ static void omap_st_off(struct omap_mcbsp *mcbsp) w = MCBSP_READ(mcbsp, SSELCR); MCBSP_WRITE(mcbsp, SSELCR, w & ~(SIDETONEEN)); + /* Enable Sidetone clock auto-gating to reduce power consumption */ + w = MCBSP_ST_READ(mcbsp, SYSCONFIG); + MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w | ST_AUTOIDLE); + if (mcbsp->pdata->enable_st_clock) mcbsp->pdata->enable_st_clock(mcbsp->id, 0); } diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index 99381a272..a84f67723 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -82,6 +82,8 @@ static int omap_pcm_hw_params(struct snd_pcm_substream *substream, struct dma_chan *chan; int err = 0; + memset(&config, 0x00, sizeof(config)); + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); /* return if this is a bufferless transfer e.g. -- cgit v1.2.3-54-g00ecf