Merge tag 'pmdomain-v7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "pmdomain core:
   - Add a genpd config to support unknown initial status
   - Add support system wide resume latency constraints
   - Enable a non-CPU device in a CPU PM domain to do power on
   - Fall back to use device node name for domain idle states

  pmdomain providers:
   - cpuidle-psci: Initialize the PM domains in powered off state for OSI
   - cpuidle-psci: Move initialization a bit earlier in the boot sequence
   - qcom: Add NMXC power domain for Nord
   - qcom: Add support for SM7250, Kuno and MSM8952 power domains
   - renesas: Add support for r8a774a3 SYSC power domains
   - renesas: Fix lockdep false positive for r8a78000
   - riscv: Add RPMI device power service
   - st: Add the actual power domains on U8500
   - st: Convert Ux500 PM domains to schema

  pm qos:
   - Add a flag for system wide latency constraints
   - Add lockless read for flags"

* tag 'pmdomain-v7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (36 commits)
  dt-bindings: arm: Add the actual power domains on U8500
  dt-bindings: arm: ux500: Drop NR_DOMAINS
  dt-bindings: power: Convert Ux500 PM domains to schema
  dt-bindings: power: rpmpd: Add MSM8952 power domains
  pmdomain: rockchip: drop duplicated errno from supply failure message
  pmdomain: core: add support system-wide resume latency constraints
  pmdomain: core: add genpd_for_each_child() helper
  PM / QoS: add lockless read for flags
  PM / QoS: add flag to indicate latency applies system-wide
  pmdomain: renesas: rcar-sys: Add r8a774a3 support
  dt-bindings: power: Add r8a774a3 SYSC power domain definitions
  dt-bindings: power: renesas,rcar-sysc: Document vendor-prefixed header paths
  pmdomain: imx93-blk-ctrl: Use pm_runtime_resume_and_get()
  pmdomain: imx8m-blk-ctrl: Use pm_runtime_resume_and_get()
  pmdomain: imx: gpcv2: Use pm_runtime_resume_and_get()
  pmdomain: rockchip: Fix domain check in rockchip_pm_add_one_domain()
  pmdomain: core: Fall back to node name for idle states
  pmdomain: renesas: r8a78000: Fix lockdep false positive
  pmdomain: fix typo "releated" in comment
  pmdomain: imx: Propagate SCU provider registration failures
  ...

3 files changed, 29 insertions, 0 deletions

diff --git a/include/linux/mailbox/riscv-rpmi-message.h b/include/linux/mailbox/riscv-rpmi-message.h
index e135c6564d0c..d5362b5821f9 100644
--- a/include/linux/mailbox/riscv-rpmi-message.h
+++ b/include/linux/mailbox/riscv-rpmi-message.h
@@ -93,6 +93,7 @@ static inline int rpmi_to_linux_error(int rpmi_error)
 /* RPMI service group IDs */
 #define RPMI_SRVGRP_SYSTEM_MSI		0x00002
 #define RPMI_SRVGRP_CLOCK		0x00008
+#define RPMI_SRVGRP_DEVICE_POWER	0x00009
 
 /* RPMI clock service IDs */
 enum rpmi_clock_service_id {
@@ -119,6 +120,16 @@ enum rpmi_sysmsi_service_id {
 	RPMI_SYSMSI_SRV_ID_MAX_COUNT
 };
 
+/* RPMI device power service IDs */
+enum rpmi_device_power_service_id {
+	RPMI_DP_SRV_ENABLE_NOTIFICATION = 0x01,
+	RPMI_DP_SRV_GET_NUM_DOMAINS  = 0x02,
+	RPMI_DP_SRV_GET_ATTRS = 0x03,
+	RPMI_DP_SRV_SET_STATE = 0x04,
+	RPMI_DP_SRV_GET_STATE = 0x05,
+	RPMI_DP_SRV_ID_MAX_COUNT,
+};
+
 /* RPMI Linux mailbox attribute IDs */
 enum rpmi_mbox_attribute_id {
 	RPMI_MBOX_ATTR_SPEC_VERSION,
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index f925614aebdb..14e0e346c610 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -121,6 +121,14 @@ struct dev_pm_domain_list {
  *				powered-off until the ->sync_state() callback is
  *				invoked. This flag informs genpd to allow a
  *				power-off without waiting for ->sync_state().
+ *
+ * GENPD_FLAG_POWER_UNKNOWN:	Use this flag to inform	genpd that its initial
+ *				status for the PM domain is set to powered off,
+ *				which may not correctly reflect the state of the
+ *				HW, as it's unknown. If the PM domain becomes
+ *				powered on during boot, genpd will prevent it
+ *				from being powered off until the ->sync_state
+ *				callback is invoked for it.
  */
 #define GENPD_FLAG_PM_CLK	 (1U << 0)
 #define GENPD_FLAG_IRQ_SAFE	 (1U << 1)
@@ -133,6 +141,7 @@ struct dev_pm_domain_list {
 #define GENPD_FLAG_DEV_NAME_FW	 (1U << 8)
 #define GENPD_FLAG_NO_SYNC_STATE (1U << 9)
 #define GENPD_FLAG_NO_STAY_ON	 (1U << 10)
+#define GENPD_FLAG_POWER_UNKNOWN (1U << 11)
 
 enum gpd_status {
 	GENPD_STATE_ON = 0,	/* PM domain is on */
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 6cea4455f867..439a9e779d81 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -37,6 +37,8 @@ enum pm_qos_flags_status {
 #define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT	(-1)
 
 #define PM_QOS_FLAG_NO_POWER_OFF	(1 << 0)
+/* latency value applies to system-wide suspend/s2idle */
+#define PM_QOS_FLAG_LATENCY_SYS		(2 << 0)
 
 enum pm_qos_type {
 	PM_QOS_UNITIALIZED,
@@ -217,6 +219,12 @@ static inline s32 dev_pm_qos_raw_resume_latency(struct device *dev)
 		PM_QOS_RESUME_LATENCY_NO_CONSTRAINT :
 		pm_qos_read_value(&dev->power.qos->resume_latency);
 }
+
+static inline s32 dev_pm_qos_raw_flags(struct device *dev)
+{
+	return IS_ERR_OR_NULL(dev->power.qos) ?
+		0 : READ_ONCE(dev->power.qos->flags.effective_flags);
+}
 #else
 static inline enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev,
 							  s32 mask)
@@ -298,6 +306,7 @@ static inline s32 dev_pm_qos_raw_resume_latency(struct device *dev)
 {
 	return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
 }
+static inline s32 dev_pm_qos_raw_flags(struct device *dev) { return 0; }
 #endif
 
 static inline int freq_qos_request_active(struct freq_qos_request *req)