diff options
| author | Shengjiu Wang <shengjiu.wang@freescale.com> | 2014-09-17 16:42:32 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2015-01-15 21:17:55 -0600 |
| commit | 52d7db754c52578b63c9f998f476df333dd2489b (patch) | |
| tree | 8a81244fba59290a4c433985f4e2b3683342792c /sound | |
| parent | ecedd4b80b18886861e7d4fa23e5f7c4d014aefe (diff) | |
ENGR00331799-5: ASoC: fsl_esai: add spba clock support
esai need to enable the spba clock, when sdma is using share peripheral
script. If don't enable it, may cause the read/write wrong data from/to
register.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_esai.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c index a3b29ed84963..f942d3f88d03 100644 --- a/sound/soc/fsl/fsl_esai.c +++ b/sound/soc/fsl/fsl_esai.c @@ -53,6 +53,7 @@ struct fsl_esai { struct clk *coreclk; struct clk *extalclk; struct clk *fsysclk; + struct clk *dmaclk; u32 fifo_depth; u32 slot_width; u32 hck_rate[2]; @@ -466,6 +467,9 @@ static int fsl_esai_startup(struct snd_pcm_substream *substream, ret = clk_prepare_enable(esai_priv->coreclk); if (ret) return ret; + ret = clk_prepare_enable(esai_priv->dmaclk); + if (ret) + return ret; if (!IS_ERR(esai_priv->extalclk)) { ret = clk_prepare_enable(esai_priv->extalclk); if (ret) @@ -496,6 +500,7 @@ err_fsysclk: if (!IS_ERR(esai_priv->extalclk)) clk_disable_unprepare(esai_priv->extalclk); err_extalck: + clk_disable_unprepare(esai_priv->dmaclk); clk_disable_unprepare(esai_priv->coreclk); return ret; @@ -555,6 +560,7 @@ static void fsl_esai_shutdown(struct snd_pcm_substream *substream, clk_disable_unprepare(esai_priv->fsysclk); if (!IS_ERR(esai_priv->extalclk)) clk_disable_unprepare(esai_priv->extalclk); + clk_disable_unprepare(esai_priv->dmaclk); clk_disable_unprepare(esai_priv->coreclk); } @@ -765,6 +771,13 @@ static int fsl_esai_probe(struct platform_device *pdev) dev_warn(&pdev->dev, "failed to get fsys clock: %ld\n", PTR_ERR(esai_priv->fsysclk)); + esai_priv->dmaclk = devm_clk_get(&pdev->dev, "dma"); + if (IS_ERR(esai_priv->dmaclk)) { + dev_err(&pdev->dev, "Cannot get dma clock: %ld\n", + PTR_ERR(esai_priv->dmaclk)); + return PTR_ERR(esai_priv->dmaclk); + } + irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(&pdev->dev, "no irq for node %s\n", np->full_name); |