Subject: [PATCH v4] Sound: PXA: Fix settings of PXAxxx DMA

From: [email-masked] (Petr Cvek)
Date: Thu, 29 Jan 2015 11:58:37 +0100

Fix PXA DMA autoincrementation, so capture will not use playback settings
(incrementation in register space instead in target buffer).

Signed-off-by: Petr Cvek <[email-masked]>
---
 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