sugar/linux
1
0
Fork 0
Code Activity

soundwire: amd: serialize amd manager resume sequence during pm_prepare

Browse Source 
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: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20250530054447.1645807-3-Vijendar.Mukunda@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Vijendar Mukunda
2025-05-30 11:13:40 +05:30
committed by Vinod Koul
parent 5b8c1f39b5
commit 0383734179
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/soundwire/amd_manager.c
View File

@@ -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;
}
}