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
  ...

Author: torvalds

Documentation/devicetree/bindings/power/mediatek,mt8196-gpufreq.yaml

@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/mediatek,mt8196-gpufreq.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MFlexGraphics Power and Frequency Controller
+
+maintainers:
+  - Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
+
+description:
+  A special-purpose embedded MCU to control power and frequency of GPU devices
+  using MediaTek Flexible Graphics integration hardware.
+
+properties:
+  $nodename:
+    pattern: '^power-controller@[a-f0-9]+$'
+
+  compatible:
+    enum:
+      - mediatek,mt8196-gpufreq
+
+  reg:
+    items:
+      - description: GPR memory area
+      - description: RPC memory area
+      - description: SoC variant ID register
+
+  reg-names:
+    items:
+      - const: gpr
+      - const: rpc
+      - const: hw-revision
+
+  clocks:
+    items:
+      - description: main clock of the embedded controller (EB)
+      - description: core PLL
+      - description: stack 0 PLL
+      - description: stack 1 PLL
+
+  clock-names:
+    items:
+      - const: eb
+      - const: core
+      - const: stack0
+      - const: stack1
+
+  mboxes:
+    items:
+      - description: FastDVFS events
+      - description: frequency control
+      - description: sleep control
+      - description: timer control
+      - description: frequency hopping control
+      - description: hardware voter control
+      - description: FastDVFS control
+
+  mbox-names:
+    items:
+      - const: fast-dvfs-event
+      - const: gpufreq
+      - const: sleep
+      - const: timer
+      - const: fhctl
+      - const: ccf
+      - const: fast-dvfs
+
+  memory-region:
+    items:
+      - description: phandle to the GPUEB shared memory
+
+  "#clock-cells":
+    const: 1
+
+  "#power-domain-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - mboxes
+  - mbox-names
+  - memory-region
+  - "#clock-cells"
+  - "#power-domain-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mediatek,mt8196-clock.h>
+
+    power-controller@4b09fd00 {
+        compatible = "mediatek,mt8196-gpufreq";
+        reg = <0x4b09fd00 0x80>,
+              <0x4b800000 0x1000>,
+              <0x4b860128 0x4>;
+        reg-names = "gpr", "rpc", "hw-revision";
+        clocks = <&topckgen CLK_TOP_MFG_EB>,
+                 <&mfgpll CLK_MFG_AO_MFGPLL>,
+                 <&mfgpll_sc0 CLK_MFGSC0_AO_MFGPLL_SC0>,
+                 <&mfgpll_sc1 CLK_MFGSC1_AO_MFGPLL_SC1>;
+        clock-names = "eb", "core", "stack0", "stack1";
+        mboxes = <&gpueb_mbox 0>, <&gpueb_mbox 1>, <&gpueb_mbox 2>,
+                 <&gpueb_mbox 3>, <&gpueb_mbox 4>, <&gpueb_mbox 5>,
+                 <&gpueb_mbox 7>;
+        mbox-names = "fast-dvfs-event", "gpufreq", "sleep", "timer", "fhctl",
+                     "ccf", "fast-dvfs";
+        memory-region = <&gpueb_shared_memory>;
+        #clock-cells = <1>;
+        #power-domain-cells = <0>;
+    };

Documentation/devicetree/bindings/power/mediatek,power-controller.yaml

@@ -33,6 +33,9 @@ properties:
       - mediatek,mt8188-power-controller
       - mediatek,mt8192-power-controller
       - mediatek,mt8195-power-controller
+      - mediatek,mt8196-hwv-hfrp-power-controller
+      - mediatek,mt8196-hwv-scp-power-controller
+      - mediatek,mt8196-power-controller
       - mediatek,mt8365-power-controller
 
   '#power-domain-cells':
@@ -157,6 +160,7 @@ allOf:
           contains:
             enum:
               - mediatek,mt8183-power-controller
+              - mediatek,mt8196-power-controller
     then:
       properties:
         access-controllers:

Documentation/devicetree/bindings/power/qcom,rpmpd.yaml

@@ -18,6 +18,7 @@ properties:
     oneOf:
       - enum:
           - qcom,glymur-rpmhpd
+          - qcom,kaanapali-rpmhpd
           - qcom,mdm9607-rpmpd
           - qcom,milos-rpmhpd
           - qcom,msm8226-rpmpd

Documentation/devicetree/bindings/power/rockchip,power-controller.yaml

@@ -46,6 +46,7 @@ properties:
       - rockchip,rk3576-power-controller
       - rockchip,rk3588-power-controller
       - rockchip,rv1126-power-controller
+      - rockchip,rv1126b-power-controller
 
   "#power-domain-cells":
     const: 1
@@ -126,6 +127,7 @@ $defs:
           "include/dt-bindings/power/rk3568-power.h"
           "include/dt-bindings/power/rk3588-power.h"
           "include/dt-bindings/power/rockchip,rv1126-power.h"
+          "include/dt-bindings/power/rockchip,rv1126b-power-controller.h"
 
       clocks:
         minItems: 1

Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml

@@ -13,23 +13,21 @@ description: |
 maintainers:
   - Nicolas Saenz Julienne <nsaenz@kernel.org>
 
-allOf:
-  - $ref: /schemas/watchdog/watchdog.yaml#
-
 properties:
   compatible:
     items:
       - enum:
           - brcm,bcm2835-pm
           - brcm,bcm2711-pm
+          - brcm,bcm2712-pm
       - const: brcm,bcm2835-pm-wdt
 
   reg:
-    minItems: 2
+    minItems: 1
     maxItems: 3
 
   reg-names:
-    minItems: 2
+    minItems: 1
     items:
       - const: pm
       - const: asb
@@ -62,7 +60,35 @@ required:
   - reg
   - "#power-domain-cells"
   - "#reset-cells"
-  - clocks
+
+allOf:
+  - $ref: /schemas/watchdog/watchdog.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - brcm,bcm2835-pm
+              - brcm,bcm2711-pm
+    then:
+      required:
+        - clocks
+
+      properties:
+        reg:
+          minItems: 2
+
+        reg-names:
+          minItems: 2
+
+    else:
+      properties:
+        reg:
+          maxItems: 1
+
+        reg-names:
+          maxItems: 1
 
 additionalProperties: false
 

drivers/amba/bus.c

@@ -291,15 +291,14 @@ static int amba_probe(struct device *dev)
 		if (ret < 0)
 			break;
 
-		ret = dev_pm_domain_attach(dev, PD_FLAG_ATTACH_POWER_ON);
+		ret = dev_pm_domain_attach(dev, PD_FLAG_ATTACH_POWER_ON |
+						PD_FLAG_DETACH_POWER_OFF);
 		if (ret)
 			break;
 
 		ret = amba_get_enable_pclk(pcdev);
-		if (ret) {
-			dev_pm_domain_detach(dev, true);
+		if (ret)
 			break;
-		}
 
 		pm_runtime_get_noresume(dev);
 		pm_runtime_set_active(dev);
@@ -314,7 +313,6 @@ static int amba_probe(struct device *dev)
 		pm_runtime_put_noidle(dev);
 
 		amba_put_disable_pclk(pcdev);
-		dev_pm_domain_detach(dev, true);
 	} while (0);
 
 	return ret;
@@ -336,7 +334,6 @@ static void amba_remove(struct device *dev)
 	pm_runtime_put_noidle(dev);
 
 	amba_put_disable_pclk(pcdev);
-	dev_pm_domain_detach(dev, true);
 }
 
 static void amba_shutdown(struct device *dev)

drivers/base/power/main.c

@@ -2148,6 +2148,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
 	device_lock(dev);
 
 	dev->power.wakeup_path = false;
+	dev->power.out_band_wakeup = false;
 
 	if (dev->power.no_pm_callbacks)
 		goto unlock;

drivers/cpuidle/cpuidle-psci.c

@@ -382,8 +382,8 @@ static int psci_idle_init_cpu(struct device *dev, int cpu)
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
 	drv->states[0].power_usage = UINT_MAX;
-	strcpy(drv->states[0].name, "WFI");
-	strcpy(drv->states[0].desc, "ARM WFI");
+	strscpy(drv->states[0].name, "WFI");
+	strscpy(drv->states[0].desc, "ARM WFI");
 
 	/*
 	 * If no DT idle states are detected (ret == 0) let the driver

drivers/pmdomain/bcm/bcm2835-power.c

@@ -79,6 +79,7 @@
 #define PM_IMAGE			0x108
 #define PM_GRAFX			0x10c
 #define PM_PROC				0x110
+#define PM_GRAFX_2712			0x304
 #define PM_ENAB				BIT(12)
 #define PM_ISPRSTN			BIT(8)
 #define PM_H264RSTN			BIT(7)
@@ -381,6 +382,9 @@ static int bcm2835_power_pd_power_on(struct generic_pm_domain *domain)
 		return bcm2835_power_power_on(pd, PM_GRAFX);
 
 	case BCM2835_POWER_DOMAIN_GRAFX_V3D:
+		if (!power->asb)
+			return bcm2835_asb_power_on(pd, PM_GRAFX_2712,
+						    0, 0, PM_V3DRSTN);
 		return bcm2835_asb_power_on(pd, PM_GRAFX,
 					    ASB_V3D_M_CTRL, ASB_V3D_S_CTRL,
 					    PM_V3DRSTN);
@@ -447,6 +451,9 @@ static int bcm2835_power_pd_power_off(struct generic_pm_domain *domain)
 		return bcm2835_power_power_off(pd, PM_GRAFX);
 
 	case BCM2835_POWER_DOMAIN_GRAFX_V3D:
+		if (!power->asb)
+			return bcm2835_asb_power_off(pd, PM_GRAFX_2712,
+						     0, 0, PM_V3DRSTN);
 		return bcm2835_asb_power_off(pd, PM_GRAFX,
 					     ASB_V3D_M_CTRL, ASB_V3D_S_CTRL,
 					     PM_V3DRSTN);
@@ -635,10 +642,12 @@ static int bcm2835_power_probe(struct platform_device *pdev)
 	power->asb = pm->asb;
 	power->rpivid_asb = pm->rpivid_asb;
 
-	id = readl(power->asb + ASB_AXI_BRDG_ID);
-	if (id != BCM2835_BRDG_ID /* "BRDG" */) {
-		dev_err(dev, "ASB register ID returned 0x%08x\n", id);
-		return -ENODEV;
+	if (power->asb) {
+		id = readl(power->asb + ASB_AXI_BRDG_ID);
+		if (id != BCM2835_BRDG_ID /* "BRDG" */) {
+			dev_err(dev, "ASB register ID returned 0x%08x\n", id);
+			return -ENODEV;
+		}
 	}
 
 	if (power->rpivid_asb) {

drivers/pmdomain/core.c

@@ -1551,7 +1551,8 @@ static int genpd_finish_suspend(struct device *dev,
 	if (ret)
 		return ret;
 
-	if (device_awake_path(dev) && genpd_is_active_wakeup(genpd))
+	if (device_awake_path(dev) && genpd_is_active_wakeup(genpd) &&
+	    !device_out_band_wakeup(dev))
 		return 0;
 
 	if (genpd->dev_ops.stop && genpd->dev_ops.start &&
@@ -1606,7 +1607,8 @@ static int genpd_finish_resume(struct device *dev,
 	if (IS_ERR(genpd))
 		return -EINVAL;
 
-	if (device_awake_path(dev) && genpd_is_active_wakeup(genpd))
+	if (device_awake_path(dev) && genpd_is_active_wakeup(genpd) &&
+	    !device_out_band_wakeup(dev))
 		return resume_noirq(dev);
 
 	genpd_lock(genpd);