diff options
| author | Xiubo Li <Li.Xiubo@freescale.com> | 2013-12-25 03:20:14 (GMT) |
|---|---|---|
| committer | Matthew Weigel <Matthew.Weigel@freescale.com> | 2014-12-11 18:36:24 (GMT) |
| commit | c7985f927b17047a3003493f5eb2883006e5eb2b (patch) | |
| tree | 43e6f658ed430f9744a40cf65977a4337b05ef22 /sound | |
| parent | fbadc482cdadf739ff08fde113e8a0baafcfe4b5 (diff) | |
| download | linux-fsl-qoriq-c7985f927b17047a3003493f5eb2883006e5eb2b.tar.xz | |
ASoC: fsl_sai: Move the global registers setting to _dai_probe()
Because we cannot make sure which one of _dai_fmt() and _dai_sysclk()
will be firstly called. So move the RCSR/TCSR and TCR1/RCR1's
initialization to _dai_probe(), and this can make sure that before any
of {T,R}CR{1~5} register to be set the RCSR/TCSR's RE/TE bit has been
cleared for the hareware limitation.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
This patch is pulled back from upstream:
commit e6dc12d7198eddba2e3e7a13feab5c7edde7ba1d
Change-Id: Ie77345f4a2d84d55443e84d1c4cb2d2a9db766d0
Reviewed-on: http://git.am.freescale.net:8181/19746
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_sai.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index 8a85dc9..a414f72 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -100,11 +100,6 @@ static int fsl_sai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, if (ret) return ret; - sai_writel(sai, 0x0, sai->base + FSL_SAI_RCSR); - sai_writel(sai, 0x0, sai->base + FSL_SAI_TCSR); - sai_writel(sai, FSL_SAI_MAXBURST_TX * 2, sai->base + FSL_SAI_TCR1); - sai_writel(sai, FSL_SAI_MAXBURST_RX - 1, sai->base + FSL_SAI_RCR1); - ret = fsl_sai_set_dai_sysclk_tr(cpu_dai, clk_id, freq, FSL_FMT_TRANSMITTER); if (ret) { @@ -351,6 +346,18 @@ static const struct snd_soc_dai_ops fsl_sai_pcm_dai_ops = { static int fsl_sai_dai_probe(struct snd_soc_dai *cpu_dai) { struct fsl_sai *sai = dev_get_drvdata(cpu_dai->dev); + int ret; + + ret = clk_prepare_enable(sai->clk); + if (ret) + return ret; + + sai_writel(sai, 0x0, sai->base + FSL_SAI_RCSR); + sai_writel(sai, 0x0, sai->base + FSL_SAI_TCSR); + sai_writel(sai, FSL_SAI_MAXBURST_TX * 2, sai->base + FSL_SAI_TCR1); + sai_writel(sai, FSL_SAI_MAXBURST_RX - 1, sai->base + FSL_SAI_RCR1); + + clk_disable_unprepare(sai->clk); cpu_dai->playback_dma_data = &sai->dma_params_tx; cpu_dai->capture_dma_data = &sai->dma_params_rx; |