diff options
| author | Shengjiu Wang <shengjiu.wang@freescale.com> | 2015-11-24 17:19:34 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-11-25 12:14:42 +0000 |
| commit | 13b8a97a760eee021558dc48fd65e77e8a362909 (patch) | |
| tree | 15ebeaed447c3004c17c625547fdd84df35af2a1 /sound/soc/fsl/fsl_asrc.c | |
| parent | 8005c49d9aea74d382f474ce11afbbc7d7130bec (diff) | |
ASoC: fsl_asrc: spba clock is needed by asrc device
ASRC need to enable the spba clock, when sdma is using share peripheral
script. In this case, there is two spba master port is used, if don't
enable the clock, the spba bus will have arbitration issue, which may
cause read/write wrong data from/to ASRC registers
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/fsl/fsl_asrc.c')
| -rw-r--r-- | sound/soc/fsl/fsl_asrc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c index 9f087d4f73ed..cf382475670b 100644 --- a/sound/soc/fsl/fsl_asrc.c +++ b/sound/soc/fsl/fsl_asrc.c @@ -859,6 +859,10 @@ static int fsl_asrc_probe(struct platform_device *pdev) return PTR_ERR(asrc_priv->ipg_clk); } + asrc_priv->spba_clk = devm_clk_get(&pdev->dev, "spba"); + if (IS_ERR(asrc_priv->spba_clk)) + dev_warn(&pdev->dev, "failed to get spba clock\n"); + for (i = 0; i < ASRC_CLK_MAX_NUM; i++) { sprintf(tmp, "asrck_%x", i); asrc_priv->asrck_clk[i] = devm_clk_get(&pdev->dev, tmp); @@ -939,6 +943,11 @@ static int fsl_asrc_runtime_resume(struct device *dev) ret = clk_prepare_enable(asrc_priv->ipg_clk); if (ret) goto disable_mem_clk; + if (!IS_ERR(asrc_priv->spba_clk)) { + ret = clk_prepare_enable(asrc_priv->spba_clk); + if (ret) + goto disable_ipg_clk; + } for (i = 0; i < ASRC_CLK_MAX_NUM; i++) { ret = clk_prepare_enable(asrc_priv->asrck_clk[i]); if (ret) @@ -950,6 +959,9 @@ static int fsl_asrc_runtime_resume(struct device *dev) disable_asrck_clk: for (i--; i >= 0; i--) clk_disable_unprepare(asrc_priv->asrck_clk[i]); + if (!IS_ERR(asrc_priv->spba_clk)) + clk_disable_unprepare(asrc_priv->spba_clk); +disable_ipg_clk: clk_disable_unprepare(asrc_priv->ipg_clk); disable_mem_clk: clk_disable_unprepare(asrc_priv->mem_clk); @@ -963,6 +975,8 @@ static int fsl_asrc_runtime_suspend(struct device *dev) for (i = 0; i < ASRC_CLK_MAX_NUM; i++) clk_disable_unprepare(asrc_priv->asrck_clk[i]); + if (!IS_ERR(asrc_priv->spba_clk)) + clk_disable_unprepare(asrc_priv->spba_clk); clk_disable_unprepare(asrc_priv->ipg_clk); clk_disable_unprepare(asrc_priv->mem_clk); |