Re: [PATCH 1/1] tty: replace chan->device->dev with dmaengine_get_provider_device()

[Andy Shevchenko]

On Tue, Nov 03, 2026 at 04:59:45PM -0500, Frank.Li@xxxxxxxxxxx wrote:
> 
> Use the dmaengine_get_provider_device() API instead of directly
> accessing chan->device->dev to get the DMA provider device.
> 
> No functional change. Prepare make to struct dma_device private to the DMA
> engine.

...

>  static bool dw8250_idma_filter(struct dma_chan *chan, void *param)
>  {
> -	return param == chan->device->dev;
> +	return param == dmaengine_get_provider_device(chan);
>  }

As mentioned in SPI patch, with another helper this function will gone.

...

>  	if ((chan->chan_id == param->chan_id) && (param->dma_dev ==
> -						  chan->device->dev)) {
> +						  dmaengine_get_provider_device(chan))) {

Fix indentation while at it.

	if ((chan->chan_id == param->chan_id) &&
	    (param->dma_dev == dmaengine_get_provider_device(chan))) {

>  		chan->private = param;
>  		return true;

-- 
With Best Regards,
Andy Shevchenko