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media: tw686x: Use managed buffer allocation
Clean up the driver with the new managed buffer allocation API. The hw_params and hw_free callbacks became superfluous and dropped. Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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@ -78,17 +78,6 @@ void tw686x_audio_irq(struct tw686x_dev *dev, unsigned long requests,
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}
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}
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static int tw686x_pcm_hw_params(struct snd_pcm_substream *ss,
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struct snd_pcm_hw_params *hw_params)
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{
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return snd_pcm_lib_malloc_pages(ss, params_buffer_bytes(hw_params));
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}
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static int tw686x_pcm_hw_free(struct snd_pcm_substream *ss)
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{
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return snd_pcm_lib_free_pages(ss);
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}
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/*
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* Audio parameters are global and shared among all
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* capture channels. The driver prevents changes to
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@ -270,8 +259,6 @@ static const struct snd_pcm_ops tw686x_pcm_ops = {
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.open = tw686x_pcm_open,
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.close = tw686x_pcm_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = tw686x_pcm_hw_params,
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.hw_free = tw686x_pcm_hw_free,
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.prepare = tw686x_pcm_prepare,
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.trigger = tw686x_pcm_trigger,
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.pointer = tw686x_pcm_pointer,
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@ -298,7 +285,7 @@ static int tw686x_snd_pcm_init(struct tw686x_dev *dev)
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ss; ss = ss->next, i++)
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snprintf(ss->name, sizeof(ss->name), "vch%u audio", i);
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snd_pcm_lib_preallocate_pages_for_all(pcm,
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snd_pcm_set_managed_buffer_all(pcm,
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SNDRV_DMA_TYPE_DEV,
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&dev->pci_dev->dev,
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TW686X_AUDIO_PAGE_MAX * AUDIO_DMA_SIZE_MAX,
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