Merge tag 'pmdomain-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "Core:
   - Log a message when unused PM domains gets disabled
   - Scale down parent/child performance states in the reverse order

  Providers:
   - qcom: rpmpd: Add power domains support for MSM8974, MSM8974PRO,
     PMA8084 and PM8841
   - renesas: rcar-gen4-sysc: Reduce atomic delays
   - renesas: rcar-sysc: Adjust the waiting time to cover the worst case
   - renesas: r8a779h0-sysc: Add support for the r8a779h0 PM domains
   - imx: imx8mp-blk-ctrl: Add the fdcc clock to the hdmimix domains
   - imx: imx8mp-blk-ctrl: Error out if domains are missing in DT

  Improve support for multiple PM domains:
   - Add two helper functions to attach/detach multiple PM domains
   - Convert a couple of drivers to use the new helper functions"

* tag 'pmdomain-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (22 commits)
  pmdomain: renesas: rcar-gen4-sysc: Reduce atomic delays
  pmdomain: renesas: Adjust the waiting time to cover the worst case
  pmdomain: qcom: rpmpd: Add MSM8974PRO+PMA8084 power domains
  pmdomain: qcom: rpmpd: Add MSM8974+PM8841 power domains
  pmdomain: core: constify of_phandle_args in add device and subdomain
  pmdomain: core: constify of_phandle_args in xlate
  media: venus: Convert to dev_pm_domain_attach|detach_list() for vcodec
  remoteproc: qcom_q6v5_adsp: Convert to dev_pm_domain_attach|detach_list()
  remoteproc: imx_rproc: Convert to dev_pm_domain_attach|detach_list()
  remoteproc: imx_dsp_rproc: Convert to dev_pm_domain_attach|detach_list()
  PM: domains: Add helper functions to attach/detach multiple PM domains
  pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
  pmdomain: mediatek: Use devm_platform_ioremap_resource() in init_scp()
  pmdomain: renesas: r8a779h0-sysc: Add r8a779h0 support
  pmdomain: imx8mp-blk-ctrl: Error out if domains are missing in DT
  pmdomain: ti: Add a null pointer check to the omap_prm_domain_init
  pmdomain: renesas: rcar-gen4-sysc: Remove unneeded includes
  pmdomain: core: Print a message when unused power domains are disabled
  pmdomain: qcom: rpmpd: Keep one RPM handle for all RPMPDs
  pmdomain: core: Scale down parent/child performance states in reverse order
  ...

2 files changed, 56 insertions, 11 deletions

diff --git a/include/dt-bindings/power/qcom-rpmpd.h b/include/dt-bindings/power/qcom-rpmpd.h
index 7f4e2983a4c5..608087fb9a3d 100644
--- a/include/dt-bindings/power/qcom-rpmpd.h
+++ b/include/dt-bindings/power/qcom-rpmpd.h
@@ -308,6 +308,13 @@
 #define MSM8953_VDDMX		5
 #define MSM8953_VDDMX_AO	6
 
+/* MSM8974 Power Domain Indexes */
+#define MSM8974_VDDCX		0
+#define MSM8974_VDDCX_AO	1
+#define MSM8974_VDDCX_VFC	2
+#define MSM8974_VDDGFX		3
+#define MSM8974_VDDGFX_VFC	4
+
 /* MSM8976 Power Domain Indexes */
 #define MSM8976_VDDCX		0
 #define MSM8976_VDDCX_AO	1
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index b97c5e9820f9..772d3280d35f 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -20,6 +20,33 @@
 #include <linux/time64.h>
 
 /*
+ * Flags to control the behaviour when attaching a device to its PM domains.
+ *
+ * PD_FLAG_NO_DEV_LINK:		As the default behaviour creates a device-link
+ *				for every PM domain that gets attached, this
+ *				flag can be used to skip that.
+ *
+ * PD_FLAG_DEV_LINK_ON:		Add the DL_FLAG_RPM_ACTIVE to power-on the
+ *				supplier and its PM domain when creating the
+ *				device-links.
+ *
+ */
+#define PD_FLAG_NO_DEV_LINK		BIT(0)
+#define PD_FLAG_DEV_LINK_ON		BIT(1)
+
+struct dev_pm_domain_attach_data {
+	const char * const *pd_names;
+	const u32 num_pd_names;
+	const u32 pd_flags;
+};
+
+struct dev_pm_domain_list {
+	struct device **pd_devs;
+	struct device_link **pd_links;
+	u32 num_pds;
+};
+
+/*
  * Flags to control the behaviour of a genpd.
  *
  * These flags may be set in the struct generic_pm_domain's flags field by a
@@ -322,7 +349,7 @@ static inline void dev_pm_genpd_resume(struct device *dev) {}
 /* OF PM domain providers */
 struct of_device_id;
 
-typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args,
+typedef struct generic_pm_domain *(*genpd_xlate_t)(const struct of_phandle_args *args,
 						   void *data);
 
 struct genpd_onecell_data {
@@ -337,11 +364,11 @@ int of_genpd_add_provider_simple(struct device_node *np,
 int of_genpd_add_provider_onecell(struct device_node *np,
 				  struct genpd_onecell_data *data);
 void of_genpd_del_provider(struct device_node *np);
-int of_genpd_add_device(struct of_phandle_args *args, struct device *dev);
-int of_genpd_add_subdomain(struct of_phandle_args *parent_spec,
-			   struct of_phandle_args *subdomain_spec);
-int of_genpd_remove_subdomain(struct of_phandle_args *parent_spec,
-			      struct of_phandle_args *subdomain_spec);
+int of_genpd_add_device(const struct of_phandle_args *args, struct device *dev);
+int of_genpd_add_subdomain(const struct of_phandle_args *parent_spec,
+			   const struct of_phandle_args *subdomain_spec);
+int of_genpd_remove_subdomain(const struct of_phandle_args *parent_spec,
+			      const struct of_phandle_args *subdomain_spec);
 struct generic_pm_domain *of_genpd_remove_last(struct device_node *np);
 int of_genpd_parse_idle_states(struct device_node *dn,
 			       struct genpd_power_state **states, int *n);
@@ -366,20 +393,20 @@ static inline int of_genpd_add_provider_onecell(struct device_node *np,
 
 static inline void of_genpd_del_provider(struct device_node *np) {}
 
-static inline int of_genpd_add_device(struct of_phandle_args *args,
+static inline int of_genpd_add_device(const struct of_phandle_args *args,
 				      struct device *dev)
 {
 	return -ENODEV;
 }
 
-static inline int of_genpd_add_subdomain(struct of_phandle_args *parent_spec,
-					 struct of_phandle_args *subdomain_spec)
+static inline int of_genpd_add_subdomain(const struct of_phandle_args *parent_spec,
+					 const struct of_phandle_args *subdomain_spec)
 {
 	return -ENODEV;
 }
 
-static inline int of_genpd_remove_subdomain(struct of_phandle_args *parent_spec,
-					struct of_phandle_args *subdomain_spec)
+static inline int of_genpd_remove_subdomain(const struct of_phandle_args *parent_spec,
+					    const struct of_phandle_args *subdomain_spec)
 {
 	return -ENODEV;
 }
@@ -420,7 +447,11 @@ struct device *dev_pm_domain_attach_by_id(struct device *dev,
 					  unsigned int index);
 struct device *dev_pm_domain_attach_by_name(struct device *dev,
 					    const char *name);
+int dev_pm_domain_attach_list(struct device *dev,
+			      const struct dev_pm_domain_attach_data *data,
+			      struct dev_pm_domain_list **list);
 void dev_pm_domain_detach(struct device *dev, bool power_off);
+void dev_pm_domain_detach_list(struct dev_pm_domain_list *list);
 int dev_pm_domain_start(struct device *dev);
 void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd);
 int dev_pm_domain_set_performance_state(struct device *dev, unsigned int state);
@@ -439,7 +470,14 @@ static inline struct device *dev_pm_domain_attach_by_name(struct device *dev,
 {
 	return NULL;
 }
+static inline int dev_pm_domain_attach_list(struct device *dev,
+				const struct dev_pm_domain_attach_data *data,
+				struct dev_pm_domain_list **list)
+{
+	return 0;
+}
 static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {}
+static inline void dev_pm_domain_detach_list(struct dev_pm_domain_list *list) {}
 static inline int dev_pm_domain_start(struct device *dev)
 {
 	return 0;