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ASoC: atmel_ssc_dai: only clean PDC when using PDC 

Only using PDC, it needs to clean PDC registers.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Bo Shen 2015-01-30 17:38:44 +08:00 committed by Mark Brown
parent cbaadf0f90
commit 3fd5b30c57
1 changed files with 10 additions and 8 deletions
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18
sound/soc/atmel/atmel_ssc_dai.c
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@ -627,15 +627,17 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
rcmr, rfmr, tcmr, tfmr);
if (!ssc_p->initialized) {
ssc_writel(ssc_p->ssc->regs, PDC_RPR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_RCR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_RNPR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_RNCR, 0);
if (!ssc_p->ssc->pdata->use_dma) {
ssc_writel(ssc_p->ssc->regs, PDC_RPR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_RCR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_RNPR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_RNCR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_TPR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_TCR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_TNPR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_TNCR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_TPR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_TCR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_TNPR, 0);
ssc_writel(ssc_p->ssc->regs, PDC_TNCR, 0);
}
ret = request_irq(ssc_p->ssc->irq, atmel_ssc_interrupt, 0,
ssc_p->name, ssc_p);