[PATCH] ASoC: fsl_sai: Add isr to deal with error flag

[Li.Xiubo at freescale.com]

> +	regmap_read(sai->regmap, FSL_SAI_TCSR, &xcsr);
> +	regmap_write(sai->regmap, FSL_SAI_TCSR, xcsr);
> +
> +	if (xcsr & FSL_SAI_CSR_WSF)
> +		dev_dbg(dev, "isr: Start of Tx word detected\n");
> +
> +	if (xcsr & FSL_SAI_CSR_SEF)
> +		dev_dbg(dev, "isr: Tx Frame sync error detected\n");
> +
> +	if (xcsr & FSL_SAI_CSR_FEF)
> +		dev_dbg(dev, "isr: Transmit underrun detected\n");
> +

Actually, the above three isrs should to write a logic 1 to this field
to clear this flag.


> +	if (xcsr & FSL_SAI_CSR_FWF)
> +		dev_dbg(dev, "isr: Enabled transmit FIFO is empty\n");
> +
> +	if (xcsr & FSL_SAI_CSR_FRF)
> +		dev_dbg(dev, "isr: Transmit FIFO watermark has been reached\n");
> +

While are these ones really needed to clear manually ?


Thanks,
--

Best Regards,
Xiubo