Merge tag 'soc-drivers-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "There are few major updates in the SoC specific drivers, mainly the
  usual reworks and support for variants of the existing SoC. While this
  remains Arm centric for the most part, the branch now also contains
  updates to risc-v and loongarch specific code in drivers/soc/.

  Notable changes include:

   - Support for the newly added Qualcomm Snapdragon variants (MSM8956,
     MSM8976, SM6115, SM4250, SM8150, SA8155 and SM8550) in the soc ID,
     rpmh, rpm, spm and powerdomain drivers.

   - Documentation for the somewhat controversial qcom,board-id
     properties that are required for booting a number of machines

   - A new SoC identification driver for the loongson-2 (loongarch)
     platform

   - memory controller updates for stm32, tegra, and renesas.

   - a new DT binding to better describe LPDDR2/3/4/5 chips in the
     memory controller subsystem

   - Updates for Tegra specific drivers across multiple subsystems,
     improving support for newer SoCs and better identification

   - Minor fixes for Broadcom, Freescale, Apple, Renesas, Sifive, TI,
     Mediatek and Marvell SoC drivers"

* tag 'soc-drivers-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (137 commits)
  soc: qcom: socinfo: Add SM6115 / SM4250 SoC IDs to the soc_id table
  dt-bindings: arm: qcom,ids: Add SoC IDs for SM6115 / SM4250 and variants
  soc: qcom: socinfo: Add SM8150 and SA8155 SoC IDs to the soc_id table
  dt-bindings: arm: qcom,ids: Add SoC IDs for SM8150 and SA8155
  dt-bindings: soc: qcom: apr: document generic qcom,apr compatible
  soc: qcom: Select REMAP_MMIO for ICC_BWMON driver
  soc: qcom: Select REMAP_MMIO for LLCC driver
  soc: qcom: rpmpd: Add SM4250 support
  dt-bindings: power: rpmpd: Add SM4250 support
  dt-bindings: soc: qcom: aoss: Add compatible for SM8550
  soc: qcom: llcc: Add configuration data for SM8550
  dt-bindings: arm: msm: Add LLCC compatible for SM8550
  soc: qcom: llcc: Add v4.1 HW version support
  soc: qcom: socinfo: Add SM8550 ID
  soc: qcom: rpmh-rsc: Avoid unnecessary checks on irq-done response
  soc: qcom: rpmh-rsc: Add support for RSC v3 register offsets
  soc: qcom: rpmhpd: Add SM8550 power domains
  dt-bindings: power: rpmpd: Add SM8550 to rpmpd binding
  soc: qcom: socinfo: Add MSM8956/76 SoC IDs to the soc_id table
  dt-bindings: arm: qcom,ids: Add SoC IDs for MSM8956 and MSM8976
  ...

2 files changed, 29 insertions, 0 deletions

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 6471b559230e..a3df9b949aeb 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -494,6 +494,31 @@ void dev_pm_genpd_set_next_wakeup(struct device *dev, ktime_t next)
 }
 EXPORT_SYMBOL_GPL(dev_pm_genpd_set_next_wakeup);
 
+/**
+ * dev_pm_genpd_get_next_hrtimer - Return the next_hrtimer for the genpd
+ * @dev: A device that is attached to the genpd.
+ *
+ * This routine should typically be called for a device, at the point of when a
+ * GENPD_NOTIFY_PRE_OFF notification has been sent for it.
+ *
+ * Returns the aggregated value of the genpd's next hrtimer or KTIME_MAX if no
+ * valid value have been set.
+ */
+ktime_t dev_pm_genpd_get_next_hrtimer(struct device *dev)
+{
+	struct generic_pm_domain *genpd;
+
+	genpd = dev_to_genpd_safe(dev);
+	if (!genpd)
+		return KTIME_MAX;
+
+	if (genpd->gd)
+		return genpd->gd->next_hrtimer;
+
+	return KTIME_MAX;
+}
+EXPORT_SYMBOL_GPL(dev_pm_genpd_get_next_hrtimer);
+
 static int _genpd_power_on(struct generic_pm_domain *genpd, bool timed)
 {
 	unsigned int state_idx = genpd->state_idx;
@@ -1994,6 +2019,7 @@ static int genpd_alloc_data(struct generic_pm_domain *genpd)
 		gd->max_off_time_ns = -1;
 		gd->max_off_time_changed = true;
 		gd->next_wakeup = KTIME_MAX;
+		gd->next_hrtimer = KTIME_MAX;
 	}
 
 	/* Use only one "off" state if there were no states declared */
diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c
index 282a3a135827..cc2c3a5a6d35 100644
--- a/drivers/base/power/domain_governor.c
+++ b/drivers/base/power/domain_governor.c
@@ -375,6 +375,9 @@ static bool cpu_power_down_ok(struct dev_pm_domain *pd)
 	if (idle_duration_ns <= 0)
 		return false;
 
+	/* Store the next domain_wakeup to allow consumers to use it. */
+	genpd->gd->next_hrtimer = domain_wakeup;
+
 	/*
 	 * Find the deepest idle state that has its residency value satisfied
 	 * and by also taking into account the power off latency for the state.