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When build with CONFIG_SND_SOC_IMX_PCM_DMA=m, there is error:
ERROR: "snd_pcm_lib_preallocate_free" [sound/soc/fsl/imx-pcm-dma-v2.ko] undefined!
The reason is that snd_pcm_lib_preallocate_free is not declared
with EXPORT_SYMBOL.
In this patch, we use snd_dma_alloc_pages & snd_dma_free_pages to replace
the snd_pcm_lib_preallocate_pages & snd_pcm_lib_preallocate_free to fix
the build issue.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
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Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
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Add component name
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
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sound/soc/fsl/imx-pcm-dma-v2.c: In function ‘imx_pcm_preallocate_dma_buffer’:
sound/soc/fsl/imx-pcm-dma-v2.c:131:6: error: void value not ignored as it ought to be
ret = snd_pcm_lib_preallocate_pages(substream,
^
sound/soc/fsl/imx-pcm-dma-v2.c: In function ‘imx_pcm_free_dma_buffers’:
sound/soc/fsl/imx-pcm-dma-v2.c:144:2: error: void value not ignored as it ought to be
return snd_pcm_lib_preallocate_free(substream);
^
sound/soc/fsl/imx-pcm-dma-v2.c:145:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
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In some platform, the low power audio playback should be
supported, which need the audio buffer allocated from
OCRAM/IRAM. So move the buffer allocation to .open
function at that time the dma chan is allocated.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
(cherry picked from commit 85c59acfc5c8d17aa0f369dbe30e4a5fb128c25f)
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fifo_num is a new added parameter for dma slave config
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Viorel Suman <viorel.suman@nxp.com>
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The filter_data should be used for dma_filter_fn function,
but we used the filter_data wrongly for dma channel name.
This patch is to fix the issue.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviwed-by: Daniel Baluta <daniel.baluta@nxp.com>
[ Aisheng: split out DAI sai&esai changes ]
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
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query the caps of dma, then update the hw parameters according
the caps. for EDMA can't support 24bit sample, but we didn't
add any constraint, that cause issues.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
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fix typo issue
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
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Same as commit c55075170214 ("MLK-14582: ASoC: imx-pcm-rpmsg: fix
audio noise issue with pulseaudio"), need to add a constraint for
SNDRV_PCM_HW_PARAM_PERIODS, which make the period number integer.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
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which don't request the dma channel in the probe, but request
dma channel when needed. for the dma channel of cpu dai in BE
can be reused by the FE.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
[ Aisheng: spli SAI DAI changes ]
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
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