Commit 03837341 authored by Vijendar Mukunda's avatar Vijendar Mukunda Committed by Vinod Koul
Browse files

soundwire: amd: serialize amd manager resume sequence during pm_prepare 



During pm_prepare callback, pm_request_resume() delays SoundWire manager D0
entry sequence. Synchronize runtime resume sequence for amd_manager
instance prior to invoking child devices resume sequence for both the amd
power modes(ClockStop Mode and Power off mode).
Change the power_mode_mask check and use pm_runtime_resume() in
amd_pm_prepare() callback.

Signed-off-by: default avatarVijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20250530054447.1645807-3-Vijendar.Mukunda@amd.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 5b8c1f39

drivers/soundwire/amd_manager.c

+3 −3
Original line number Diff line number Diff line
@@ -1178,10 +1178,10 @@ static int __maybe_unused amd_pm_prepare(struct device *dev) 
	 * device is not in runtime suspend state, observed that device alerts are missing

	 * without pm_prepare on AMD platforms in clockstop mode0.

	 */

	if (amd_manager->power_mode_mask & AMD_SDW_CLK_STOP_MODE) {

		ret = pm_request_resume(dev);

	if (amd_manager->power_mode_mask) {

		ret = pm_runtime_resume(dev);

		if (ret < 0) {

			dev_err(bus->dev, "pm_request_resume failed: %d\n", ret);

			dev_err(bus->dev, "pm_runtime_resume failed: %d\n", ret);

			return 0;

		}

	}