From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petr Cvek Date: Sun, 23 Nov 2014 22:31:59 +0000 Subject: Re: [PATCH v2] Fix PXA2xx sound DMA autoincrementation flags Message-Id: <5472605F.4030702@tul.cz> List-Id: References: <54718713.1050902@tul.cz> <54720ACA.2070506@cogentembedded.com> In-Reply-To: <54720ACA.2070506@cogentembedded.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org 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 --- 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