[alsa-devel] [PATCH 13/35] ASoC: Intel: Skylake: Reuse sst_dsp_new

[Pierre-Louis Bossart]

On 8/22/19 2:04 PM, Cezary Rojewski wrote:
> skl_dsp_ctx_init is dumplication of sst_dsp_new and usage of such

typo: duplication.

> bypasses natural DSP framework's flow. Remove it and reuse sst_dsp_new
> constructor which invokes sst specific init internally so nothing is
> missed.
> 
> Skylake does not even define any sst_ops::init so portion of existing
> skl_dsp_ctx_init can be regarded as DEADCODE.

this is also hard to review, you have lines like

 > -	return skl_dsp_acquire_irq(sst);
 > +	return 0;

that seem like a different change than what is described here.

> 
> Signed-off-by: Cezary Rojewski <cezary.rojewski at intel.com>
> ---
>   sound/soc/intel/skylake/bxt-sst.c       |  2 +-
>   sound/soc/intel/skylake/cnl-sst.c       |  2 +-
>   sound/soc/intel/skylake/skl-sst-dsp.c   | 28 -------------------------
>   sound/soc/intel/skylake/skl-sst-dsp.h   |  2 --
>   sound/soc/intel/skylake/skl-sst-utils.c |  6 +++++-
>   sound/soc/intel/skylake/skl-sst.c       |  2 +-
>   6 files changed, 8 insertions(+), 34 deletions(-)
> 
> diff --git a/sound/soc/intel/skylake/bxt-sst.c b/sound/soc/intel/skylake/bxt-sst.c
> index e3614acff34d..a8a2783f9b37 100644
> --- a/sound/soc/intel/skylake/bxt-sst.c
> +++ b/sound/soc/intel/skylake/bxt-sst.c
> @@ -588,7 +588,7 @@ int bxt_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
>   	INIT_DELAYED_WORK(&skl->d0i3.work, bxt_set_dsp_D0i3);
>   	skl->d0i3.state = SKL_DSP_D0I3_NONE;
>   
> -	return skl_dsp_acquire_irq(sst);
> +	return 0;
>   }
>   EXPORT_SYMBOL_GPL(bxt_sst_dsp_init);
>   
> diff --git a/sound/soc/intel/skylake/cnl-sst.c b/sound/soc/intel/skylake/cnl-sst.c
> index 84dc6b82831d..0b0337f6ebff 100644
> --- a/sound/soc/intel/skylake/cnl-sst.c
> +++ b/sound/soc/intel/skylake/cnl-sst.c
> @@ -460,7 +460,7 @@ int cnl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
>   	cnl->boot_complete = false;
>   	init_waitqueue_head(&cnl->boot_wait);
>   
> -	return skl_dsp_acquire_irq(sst);
> +	return 0;
>   }
>   EXPORT_SYMBOL_GPL(cnl_sst_dsp_init);
>   
> diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c
> index 1c4ecbcd7db7..9d8eb1af4798 100644
> --- a/sound/soc/intel/skylake/skl-sst-dsp.c
> +++ b/sound/soc/intel/skylake/skl-sst-dsp.c
> @@ -418,34 +418,6 @@ int skl_dsp_sleep(struct sst_dsp *ctx)
>   }
>   EXPORT_SYMBOL_GPL(skl_dsp_sleep);
>   
> -struct sst_dsp *skl_dsp_ctx_init(struct device *dev,
> -		struct sst_pdata *pdata, int irq)
> -{
> -	int ret;
> -	struct sst_dsp *sst;
> -
> -	sst = devm_kzalloc(dev, sizeof(*sst), GFP_KERNEL);
> -	if (sst == NULL)
> -		return NULL;
> -
> -	spin_lock_init(&sst->spinlock);
> -	mutex_init(&sst->mutex);
> -	sst->dev = dev;
> -	sst->pdata = pdata;
> -	sst->irq = irq;
> -	sst->ops = pdata->ops;
> -	sst->thread_context = pdata->dsp;
> -
> -	/* Initialise SST Audio DSP */
> -	if (sst->ops->init) {
> -		ret = sst->ops->init(sst, NULL);
> -		if (ret < 0)
> -			return NULL;
> -	}
> -
> -	return sst;
> -}
> -
>   int skl_dsp_acquire_irq(struct sst_dsp *sst)
>   {
>   	int ret;
> diff --git a/sound/soc/intel/skylake/skl-sst-dsp.h b/sound/soc/intel/skylake/skl-sst-dsp.h
> index ba37433e4efa..1d579d59de60 100644
> --- a/sound/soc/intel/skylake/skl-sst-dsp.h
> +++ b/sound/soc/intel/skylake/skl-sst-dsp.h
> @@ -196,8 +196,6 @@ int skl_cldma_prepare(struct sst_dsp *ctx);
>   int skl_cldma_wait_interruptible(struct sst_dsp *ctx);
>   
>   void skl_dsp_set_state_locked(struct sst_dsp *ctx, int state);
> -struct sst_dsp *skl_dsp_ctx_init(struct device *dev,
> -		struct sst_pdata *pdata, int irq);
>   int skl_dsp_acquire_irq(struct sst_dsp *sst);
>   bool is_skl_dsp_running(struct sst_dsp *ctx);
>   
> diff --git a/sound/soc/intel/skylake/skl-sst-utils.c b/sound/soc/intel/skylake/skl-sst-utils.c
> index 9061a9b17ea0..8e03a10855c4 100644
> --- a/sound/soc/intel/skylake/skl-sst-utils.c
> +++ b/sound/soc/intel/skylake/skl-sst-utils.c
> @@ -6,6 +6,7 @@
>    */
>   
>   #include <linux/device.h>
> +#include <linux/pci.h>
>   #include <linux/slab.h>
>   #include <linux/uuid.h>
>   #include "../common/sst-dsp.h"
> @@ -360,10 +361,13 @@ int skl_sst_ctx_init(struct device *dev, int irq, const char *fw_name,
>   	struct skl_dev *skl = *dsp;
>   	struct sst_dsp *sst;
>   
> +	pdata->id = skl->pci->device;
> +	pdata->irq = irq;
> +	pdata->resindex_dma_base = -1;
>   	skl->dev = dev;
>   	pdata->dsp = skl;
>   	INIT_LIST_HEAD(&skl->uuid_list);
> -	skl->dsp = skl_dsp_ctx_init(dev, pdata, irq);
> +	skl->dsp = sst_dsp_new(dev, pdata);
>   	if (!skl->dsp) {
>   		dev_err(skl->dev, "%s: no device\n", __func__);
>   		return -ENODEV;
> diff --git a/sound/soc/intel/skylake/skl-sst.c b/sound/soc/intel/skylake/skl-sst.c
> index e55523826346..6bb003add9e2 100644
> --- a/sound/soc/intel/skylake/skl-sst.c
> +++ b/sound/soc/intel/skylake/skl-sst.c
> @@ -550,7 +550,7 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
>   
>   	sst->fw_ops = skl_fw_ops;
>   
> -	return skl_dsp_acquire_irq(sst);
> +	return 0;
>   }
>   EXPORT_SYMBOL_GPL(skl_sst_dsp_init);
>   
>