[PATCH v2] Fix PXA2xx sound DMA autoincrementation flags
Petr Cvek
petr.cvek at tul.cz
Sun Nov 23 14:31:59 PST 2014
Add support for SCCB devices into PXA27x I2C controller.
Fix generated START but no STOP for message without I2C_M_NOSTART flag. Add support for I2C_M_IGNORE_NAK flag.
Signed-off-by: Petr Cvek <petr.cvek at tul.cz>
---
sound/arm/pxa2xx-pcm-lib.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index a61d7a9..5d3a415 100644
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -45,7 +45,13 @@ 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
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