From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 4 Dec 2025 21:50:39 +0000 (-0800)
Subject: Merge tag 'pmdomain-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh... 
X-Git-Url: https://gentwo.org/gitweb/?a=commitdiff_plain;h=52206f82d9244546e5790f5ad64465343aa7ffd5;p=linux%2F.git

Merge tag 'pmdomain-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "pmdomain core:
   - Allow power-off for out-of-band wakeup-capable devices
   - Drop the redundant call to dev_pm_domain_detach() for the amba bus
   - Extend the genpd governor for CPUs to account for IPIs

  pmdomain providers:
   - bcm: Add support for BCM2712
   - mediatek: Add support for MFlexGraphics power domains
   - mediatek: Add support for MT8196 power domains
   - qcom: Add RPMh power domain support for Kaanapali
   - rockchip: Add support for RV1126B

  pmdomain consumers:
   - usb: dwc3: Enable out of band wakeup for i.MX95
   - usb: chipidea: Enable out of band wakeup for i.MX95"

* tag 'pmdomain-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (26 commits)
  pmdomain: Extend the genpd governor for CPUs to account for IPIs
  smp: Introduce a helper function to check for pending IPIs
  pmdomain: mediatek: convert from clk round_rate() to determine_rate()
  amba: bus: Drop dev_pm_domain_detach() call
  pmdomain: bcm: bcm2835-power: Prepare to support BCM2712
  pmdomain: mediatek: mtk-mfg: select MAILBOX in Kconfig
  pmdomain: mediatek: Add support for MFlexGraphics
  pmdomain: mediatek: Fix build-errors
  cpuidle: psci: Replace deprecated strcpy in psci_idle_init_cpu
  pmdomain: rockchip: Add support for RV1126B
  pmdomain: mediatek: Add support for MT8196 HFRPSYS power domains
  pmdomain: mediatek: Add support for MT8196 SCPSYS power domains
  pmdomain: mediatek: Add support for secure HWCCF infra power on
  pmdomain: mediatek: Add support for Hardware Voter power domains
  pmdomain: qcom: rpmhpd: Add RPMh power domain support for Kaanapali
  usb: dwc3: imx8mp: Set out of band wakeup for i.MX95
  usb: chipidea: ci_hdrc_imx: Set out of band wakeup for i.MX95
  usb: chipidea: core: detach power domain for ci_hdrc platform device
  pmdomain: core: Allow power-off for out-of-band wakeup-capable devices
  PM: wakeup: Add out-of-band system wakeup support for devices
  ...
---

52206f82d9244546e5790f5ad64465343aa7ffd5
diff --cc drivers/pmdomain/governor.c
index 05e68680f34b,a46470f2261a..96737abbb496
--- a/drivers/pmdomain/governor.c
+++ b/drivers/pmdomain/governor.c
@@@ -408,43 -404,23 +408,49 @@@ static bool cpu_power_down_ok(struct de
  		if ((idle_duration_ns >= (genpd->states[i].residency_ns +
  		    genpd->states[i].power_off_latency_ns)) &&
  		    (global_constraint >= (genpd->states[i].power_on_latency_ns +
- 		    genpd->states[i].power_off_latency_ns))) {
- 			genpd->state_idx = i;
- 			genpd->gd->last_enter = now;
- 			genpd->gd->reflect_residency = true;
- 			return true;
- 		}
+ 		    genpd->states[i].power_off_latency_ns)))
+ 			break;
+ 
  	} while (--i >= 0);
  
- 	return false;
+ 	if (i < 0)
+ 		return false;
+ 
+ 	if (cpus_peek_for_pending_ipi(genpd->cpus))
+ 		return false;
+ 
+ 	genpd->state_idx = i;
+ 	genpd->gd->last_enter = now;
+ 	genpd->gd->reflect_residency = true;
+ 	return true;
  }
  
 +static bool cpu_system_power_down_ok(struct dev_pm_domain *pd)
 +{
 +	s64 constraint_ns = cpu_wakeup_latency_qos_limit() * NSEC_PER_USEC;
 +	struct generic_pm_domain *genpd = pd_to_genpd(pd);
 +	int state_idx = genpd->state_count - 1;
 +
 +	if (!(genpd->flags & GENPD_FLAG_CPU_DOMAIN)) {
 +		genpd->state_idx = state_idx;
 +		return true;
 +	}
 +
 +	/* Find the deepest state for the latency constraint. */
 +	while (state_idx >= 0) {
 +		s64 latency_ns = genpd->states[state_idx].power_off_latency_ns +
 +				 genpd->states[state_idx].power_on_latency_ns;
 +
 +		if (latency_ns <= constraint_ns) {
 +			genpd->state_idx = state_idx;
 +			return true;
 +		}
 +		state_idx--;
 +	}
 +
 +	return false;
 +}
 +
  struct dev_power_governor pm_domain_cpu_gov = {
  	.suspend_ok = default_suspend_ok,
  	.power_down_ok = cpu_power_down_ok,