[PATCH 03/16] soundwire: cadence: add interface to check clock status

[Pierre-Louis Bossart]

>> +/**
>> + * sdw_cdns_is_clock_stop: Check clock status
>> + *
>> + * @cdns: Cadence instance
>> + */
>> +bool sdw_cdns_is_clock_stop(struct sdw_cdns *cdns)
>> +{
>> +	u32 status;
>> +
>> +	status = cdns_readl(cdns, CDNS_MCP_STAT) & CDNS_MCP_STAT_CLK_STOP;
>> +	if (status) {
>> +		dev_dbg(cdns->dev, "Clock is stopped\n");
>> +		return true;
>> +	}
> 
> This can be further optimized to:
> 
>          return !!(cdns_readl(cdns, CDNS_MCP_STAT) & CDNS_MCP_STAT_CLK_STOP);

The logs are very useful for debug.