soundwire: intel: pm_runtime idle scheduling

#define SDW_INTEL_MASTER_DISABLE_PM_RUNTIME		BIT(0)

#define SDW_INTEL_MASTER_DISABLE_CLOCK_STOP		BIT(1)

#define SDW_INTEL_MASTER_DISABLE_PM_RUNTIME_IDLE	BIT(2)

static int md_flags;

module_param_named(sdw_md_flags, md_flags, int, 0444);

		pm_runtime_enable(dev);

	}

	/*

	 * The runtime PM status of Slave devices is "Unsupported"

	 * until they report as ATTACHED. If they don't, e.g. because

	 * there are no Slave devices populated or if the power-on is

	 * delayed or dependent on a power switch, the Master will

	 * remain active and prevent its parent from suspending.

	 *

	 * Conditionally force the pm_runtime core to re-evaluate the

	 * Master status in the absence of any Slave activity. A quirk

	 * is provided to e.g. deal with Slaves that may be powered on

	 * with a delay. A more complete solution would require the

	 * definition of Master properties.

	 */

	if (!(link_flags & SDW_INTEL_MASTER_DISABLE_PM_RUNTIME_IDLE))

		pm_runtime_idle(dev);

	return 0;

err_interrupt:

	struct sdw_cdns *cdns = dev_get_drvdata(dev);

	struct sdw_intel *sdw = cdns_to_intel(cdns);

	struct sdw_bus *bus = &cdns->bus;

	int link_flags;

	int ret;

	if (bus->prop.hw_disabled) {

		pm_runtime_set_active(dev);

		pm_runtime_mark_last_busy(dev);

		pm_runtime_enable(dev);

		link_flags = md_flags >> (bus->link_id * 8);

		if (!(link_flags & SDW_INTEL_MASTER_DISABLE_PM_RUNTIME_IDLE))

			pm_runtime_idle(dev);

	}

	ret = intel_init(sdw);