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authorBo Shen <voice.shen@atmel.com>2015-01-30 12:38:44 +0300
committerMark Brown <broonie@kernel.org>2015-01-30 16:20:24 +0300
commit3fd5b30c577bdd51168f38cf4f2d322619015a53 (patch)
tree05d10f8b28bb79351c7ab08898550a117c890f4e /sound/soc/atmel
parentcbaadf0f90d6d406a36bb389fbdea524d6d89d8d (diff)
downloadlinux-3fd5b30c577bdd51168f38cf4f2d322619015a53.tar.xz
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.c20
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);