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From: Petr Cvek <petr.cvek@tul.cz>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] Fix PXA2xx sound DMA autoincrementation flags
Date: Sun, 23 Nov 2014 22:31:59 +0000	[thread overview]
Message-ID: <5472605F.4030702@tul.cz> (raw)
In-Reply-To: <54720ACA.2070506@cogentembedded.com>

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@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



  reply	other threads:[~2014-11-23 22:31 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-23  7:04 [PATCH] Fix PXA2xx sound DMA autoincrementation flags Petr Cvek
2014-11-23 16:26 ` Sergei Shtylyov
2014-11-23 22:31   ` Petr Cvek [this message]
2014-11-24 11:50     ` [PATCH v2] " Sergei Shtylyov
2014-11-24 21:19       ` [PATCH v3] " Petr Cvek

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