diff options
| author |   Bo Shen <voice.shen@atmel.com> | 2015-01-30 17:38:44 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2015-01-30 14:20:24 +0100 |
| commit | 3fd5b30c577bdd51168f38cf4f2d322619015a53 (patch) | |
| tree | 05d10f8b28bb79351c7ab08898550a117c890f4e /sound/soc/atmel | |
| parent | ASoC: atmel_ssc_dai: refactor the startup and shutdown (diff) | |
| download | wireguard-linux-3fd5b30c577bdd51168f38cf4f2d322619015a53.tar.xz wireguard-linux-3fd5b30c577bdd51168f38cf4f2d322619015a53.zip | |
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>
Diffstat (limited to 'sound/soc/atmel')
| -rw-r--r-- | sound/soc/atmel/atmel_ssc_dai.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c index 76a9754370e8..379ac2a6ab16 100644 --- a/sound/soc/atmel/atmel_ssc_dai.c +++ b/sound/soc/atmel/atmel_ssc_dai.c @@ -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); - - 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); + 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); + } ret = request_irq(ssc_p->ssc->irq, atmel_ssc_interrupt, 0, ssc_p->name, ssc_p); |