From: petr.cvek@tul.cz (Petr Cvek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4] Sound: PXA: Fix settings of PXAxxx DMA
Date: Thu, 29 Jan 2015 11:58:37 +0100 [thread overview]
Message-ID: <54CA125D.7010908@tul.cz> (raw)
Fix PXA DMA autoincrementation, so capture will not use playback settings
(incrementation in register space instead in target buffer).
Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
---
sound/arm/pxa2xx-pcm-lib.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index 01f8fdc..f8ca3ca 100644
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -45,7 +45,12 @@ int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
size_t period = params_period_bytes(params);
pxa_dma_desc *dma_desc;
dma_addr_t dma_buff_phys, next_desc_phys;
- u32 dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG;
+ u32 dcmd = 0;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG;
+ else
+ dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC;
/* temporary transition hack */
switch (rtd->params->addr_width) {
--
1.7.12.1
next reply other threads:[~2015-01-29 10:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-29 10:58 Petr Cvek [this message]
2015-01-29 11:02 ` [PATCH v4] Sound: PXA: Fix settings of PXAxxx DMA Daniel Mack
2015-01-29 11:05 ` Daniel Mack
2015-01-29 11:24 ` Mark Brown
2015-01-29 12:45 ` [RESEND PATCH " Petr Cvek
2015-01-29 19:43 ` Robert Jarzmik
2015-02-27 12:15 ` [PATCH " Petr Cvek
2015-03-02 18:18 ` Mark Brown
2015-03-06 11:07 ` Petr Cvek
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