On Mon, Feb 01, 2016 at 09:27:59AM -0800, Srinivas Kandagatla wrote:
> diff --git a/sound/soc/qcom/lpass-platform.c
> b/sound/soc/qcom/lpass-platform.c
> index 4aeb8e1..a6dce1b 100644
> --- a/sound/soc/qcom/lpass-platform.c
> +++ b/sound/soc/qcom/lpass-platform.c
> @@ -439,39 +439,6 @@ static irqreturn_t lpass_platform_lpaif_irq(int irq,
> void *data)
> return IRQ_HANDLED;
> }
>
> -static int lpass_platform_alloc_buffer(struct snd_pcm_substream
> *substream,
> - struct snd_soc_pcm_runtime *rt)
> -{
> - struct snd_dma_buffer *buf = &substream->dma_buffer;
> - size_t size = lpass_platform_pcm_hardware.buffer_bytes_max;
> -
> - buf->dev.type = SNDRV_DMA_TYPE_DEV;
> - buf->dev.dev = rt->platform->dev;
> - buf->private_data = NULL;
> - buf->area = dma_alloc_coherent(rt->platform->dev, size,
> &buf->addr,
> - GFP_KERNEL);
> - if (!buf->area) {
> - dev_err(rt->platform->dev, "%s: Could not allocate DMA
> buffer\n",
> - __func__);
> - return -ENOMEM;
> - }
...
> @@ -499,7 +467,8 @@ static int lpass_platform_pcm_new(struct
> snd_soc_pcm_runtime *soc_runtime)
>
> snd_soc_pcm_set_drvdata(soc_runtime, data);
>
> - ret = lpass_platform_alloc_buffer(substream, soc_runtime);
> + ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, pcm->card->dev,
> + size, &substream->dma_buffer);
> if (ret)
> return ret;
>
Is there a particular reason for using the soundcard device (pcm-card->dev)
rather than the platform device (rt->platform->dev) for memory
allocation? Especially considering you posted a fix for this several
weeks ago (ASoC: qcom: use correct device pointer in dma allocation).
--
Kenneth Westfield
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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