On 18-08-21, 10:49, Bard Liao wrote: > Intel validation reported an issue where the HW_RST self-clearing bit > is not cleared in hardware, which as a ripple effect creates issues > with the clock stop mode. > > This happens is a specific sequence where the Intel manager is > pm_runtime suspended with the clock-stop mode enabled. During the > system suspend, we currently do nothing, which can lead to potential > issues on system resume and the following pm_runtime suspend, > depending on the hardware state. > > This patch suggests a full resume if the clock-stop mode is used. This > may require extra time but will make the suspend/resume flows > completely symmetric. This also removes a race condition where we > could not access SHIM registers if the parent was suspended as > well. Resuming the link also resumes the parent by construction. Applied all, thanks -- ~Vinod
