Merge tag 'pmdomain-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "pmdomain core:
   - Don't clear suspended_count at genpd_prepare()
   - Update the rejected/usage counters at system suspend too

  pmdomain providers:
   - ti-sci: Fix duplicate PD referrals
   - mediatek: Add MT8188 buck isolation setting
   - renesas: Add R-Car M3-W power-off delay quirk
   - renesas: Split R-Car M3-W and M3-W+ sub-drivers

  cpuidle-psci:
   - Update MAINTAINERS to set a git for DT IDLE PM DOMAIN/ARM PSCI PM
     DOMAIN
   - Update init level to core_initcall()
   - Drop superfluous wrappers psci_dt_attach|detach_cpu()"

* tag 'pmdomain-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: ti-sci: Fix duplicate PD referrals
  pmdomain: core: Don't clear suspended_count at genpd_prepare()
  pmdomain: core: Update the rejected/usage counters at system suspend too
  pmdomain: renesas: rcar-sysc: Add R-Car M3-W power-off delay quirk
  pmdomain: renesas: rcar-sysc: Remove rcar_sysc_nullify() helper
  pmdomain: renesas: rcar-sysc: Split R-Car M3-W and M3-W+ sub-drivers
  pmdomain: renesas: rcar-sysc: Absorb rcar_sysc_ch into rcar_sysc_pd
  MAINTAINERS: Add a git for the DT IDLE PM DOMAIN
  MAINTAINERS: Add a git for the ARM PSCI PM DOMAIN
  cpuidle: psci: Update init level to core_initcall()
  cpuidle: psci: Drop superfluous wrappers psci_dt_attach|detach_cpu()
  pmdomain: mediatek: Add MT8188 buck isolation setting
  pmdomain: mediatek: scpsys: drop driver owner assignment

12 files changed, 125 insertions, 109 deletions

diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c
index b88af1262f1a..fae958794339 100644
--- a/drivers/cpuidle/cpuidle-psci-domain.c
+++ b/drivers/cpuidle/cpuidle-psci-domain.c
@@ -20,6 +20,7 @@
 #include <linux/string.h>
 
 #include "cpuidle-psci.h"
+#include "dt_idle_genpd.h"
 
 struct psci_pd_provider {
 	struct list_head link;
@@ -200,4 +201,4 @@ static int __init psci_idle_init_domains(void)
 {
 	return platform_driver_register(&psci_cpuidle_domain_driver);
 }
-subsys_initcall(psci_idle_init_domains);
+core_initcall(psci_idle_init_domains);
diff --git a/drivers/cpuidle/cpuidle-psci.c b/drivers/cpuidle/cpuidle-psci.c
index bf68920d038a..782030a27703 100644
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -28,6 +28,7 @@
 
 #include "cpuidle-psci.h"
 #include "dt_idle_states.h"
+#include "dt_idle_genpd.h"
 
 struct psci_cpuidle_data {
 	u32 *psci_states;
@@ -224,7 +225,7 @@ static int psci_dt_cpu_init_topology(struct cpuidle_driver *drv,
 	if (IS_ENABLED(CONFIG_PREEMPT_RT))
 		return 0;
 
-	data->dev = psci_dt_attach_cpu(cpu);
+	data->dev = dt_idle_attach_cpu(cpu, "psci");
 	if (IS_ERR_OR_NULL(data->dev))
 		return PTR_ERR_OR_ZERO(data->dev);
 
@@ -311,7 +312,7 @@ static void psci_cpu_deinit_idle(int cpu)
 {
 	struct psci_cpuidle_data *data = per_cpu_ptr(&psci_cpuidle_data, cpu);
 
-	psci_dt_detach_cpu(data->dev);
+	dt_idle_detach_cpu(data->dev);
 	psci_cpuidle_use_cpuhp = false;
 }
 
diff --git a/drivers/cpuidle/cpuidle-psci.h b/drivers/cpuidle/cpuidle-psci.h
index 4e132640ed64..ef004ec7a7c5 100644
--- a/drivers/cpuidle/cpuidle-psci.h
+++ b/drivers/cpuidle/cpuidle-psci.h
@@ -3,29 +3,9 @@
 #ifndef __CPUIDLE_PSCI_H
 #define __CPUIDLE_PSCI_H
 
-struct device;
 struct device_node;
 
 void psci_set_domain_state(u32 state);
 int psci_dt_parse_state_node(struct device_node *np, u32 *state);
 
-#ifdef CONFIG_ARM_PSCI_CPUIDLE_DOMAIN
-
-#include "dt_idle_genpd.h"
-
-static inline struct device *psci_dt_attach_cpu(int cpu)
-{
-	return dt_idle_attach_cpu(cpu, "psci");
-}
-
-static inline void psci_dt_detach_cpu(struct device *dev)
-{
-	dt_idle_detach_cpu(dev);
-}
-
-#else
-static inline struct device *psci_dt_attach_cpu(int cpu) { return NULL; }
-static inline void psci_dt_detach_cpu(struct device *dev) { }
-#endif
-
 #endif /* __CPUIDLE_PSCI_H */
diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c
index 4215ffd9b11c..342779464c0d 100644
--- a/drivers/pmdomain/core.c
+++ b/drivers/pmdomain/core.c
@@ -1178,8 +1178,12 @@ static void genpd_sync_power_off(struct generic_pm_domain *genpd, bool use_lock,
 
 	/* Choose the deepest state when suspending */
 	genpd->state_idx = genpd->state_count - 1;
-	if (_genpd_power_off(genpd, false))
+	if (_genpd_power_off(genpd, false)) {
+		genpd->states[genpd->state_idx].rejected++;
 		return;
+	} else {
+		genpd->states[genpd->state_idx].usage++;
+	}
 
 	genpd->status = GENPD_STATE_OFF;
 
@@ -1251,10 +1255,7 @@ static int genpd_prepare(struct device *dev)
 		return -EINVAL;
 
 	genpd_lock(genpd);
-
-	if (genpd->prepared_count++ == 0)
-		genpd->suspended_count = 0;
-
+	genpd->prepared_count++;
 	genpd_unlock(genpd);
 
 	ret = pm_generic_prepare(dev);
diff --git a/drivers/pmdomain/mediatek/mt8188-pm-domains.h b/drivers/pmdomain/mediatek/mt8188-pm-domains.h
index 06834ab6597c..007235be9efe 100644
--- a/drivers/pmdomain/mediatek/mt8188-pm-domains.h
+++ b/drivers/pmdomain/mediatek/mt8188-pm-domains.h
@@ -175,6 +175,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
 		.ctl_offs = 0x35C,
 		.pwr_sta_offs = 0x16C,
 		.pwr_sta2nd_offs = 0x170,
+		.ext_buck_iso_offs = 0x3EC,
+		.ext_buck_iso_mask = BIT(10),
 		.bp_cfg = {
 			BUS_PROT_WR(INFRA,
 				    MT8188_TOP_AXI_PROT_EN_2_ADSP_AO_STEP1,
@@ -187,7 +189,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
 				    MT8188_TOP_AXI_PROT_EN_2_CLR,
 				    MT8188_TOP_AXI_PROT_EN_2_STA),
 		},
-		.caps = MTK_SCPD_ALWAYS_ON,
+		.caps = MTK_SCPD_ALWAYS_ON | MTK_SCPD_EXT_BUCK_ISO,
 	},
 	[MT8188_POWER_DOMAIN_ADSP_INFRA] = {
 		.name = "adsp_infra",
@@ -524,6 +526,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
 		.ctl_offs = 0x3A4,
 		.pwr_sta_offs = 0x16C,
 		.pwr_sta2nd_offs = 0x170,
+		.ext_buck_iso_offs = 0x3EC,
+		.ext_buck_iso_mask = BIT(12),
 		.bp_cfg = {
 			BUS_PROT_WR(INFRA,
 				    MT8188_TOP_AXI_PROT_EN_MM_IMG_VCORE_STEP1,
@@ -541,7 +545,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
 				    MT8188_TOP_AXI_PROT_EN_MM_2_CLR,
 				    MT8188_TOP_AXI_PROT_EN_MM_2_STA),
 		},
-		.caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY,
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY |
+			MTK_SCPD_EXT_BUCK_ISO,
 	},
 	[MT8188_POWER_DOMAIN_IMG_MAIN] = {
 		.name = "img_main",
@@ -591,6 +596,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
 		.ctl_offs = 0x3A0,
 		.pwr_sta_offs = 0x16C,
 		.pwr_sta2nd_offs = 0x170,
+		.ext_buck_iso_offs = 0x3EC,
+		.ext_buck_iso_mask = BIT(11),
 		.bp_cfg = {
 			BUS_PROT_WR(INFRA,
 				    MT8188_TOP_AXI_PROT_EN_MM_CAM_VCORE_STEP1,
@@ -618,7 +625,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
 				    MT8188_TOP_AXI_PROT_EN_MM_2_CLR,
 				    MT8188_TOP_AXI_PROT_EN_MM_2_STA),
 		},
-		.caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY,
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY |
+			MTK_SCPD_EXT_BUCK_ISO,
 	},
 	[MT8188_POWER_DOMAIN_CAM_MAIN] = {
 		.name = "cam_main",
diff --git a/drivers/pmdomain/mediatek/mtk-scpsys.c b/drivers/pmdomain/mediatek/mtk-scpsys.c
index 59a7a8c261ed..1a80c1537a43 100644
--- a/drivers/pmdomain/mediatek/mtk-scpsys.c
+++ b/drivers/pmdomain/mediatek/mtk-scpsys.c
@@ -1138,7 +1138,6 @@ static struct platform_driver scpsys_drv = {
 	.driver = {
 		.name = "mtk-scpsys",
 		.suppress_bind_attrs = true,
-		.owner = THIS_MODULE,
 		.of_match_table = of_scpsys_match_tbl,
 	},
 };
diff --git a/drivers/pmdomain/renesas/Makefile b/drivers/pmdomain/renesas/Makefile
index 89180f19c23b..0391e6e67440 100644
--- a/drivers/pmdomain/renesas/Makefile
+++ b/drivers/pmdomain/renesas/Makefile
@@ -14,8 +14,8 @@ obj-$(CONFIG_SYSC_R8A7791)	+= r8a7791-sysc.o
 obj-$(CONFIG_SYSC_R8A7792)	+= r8a7792-sysc.o
 obj-$(CONFIG_SYSC_R8A7794)	+= r8a7794-sysc.o
 obj-$(CONFIG_SYSC_R8A7795)	+= r8a7795-sysc.o
-obj-$(CONFIG_SYSC_R8A77960)	+= r8a7796-sysc.o
-obj-$(CONFIG_SYSC_R8A77961)	+= r8a7796-sysc.o
+obj-$(CONFIG_SYSC_R8A77960)	+= r8a77960-sysc.o
+obj-$(CONFIG_SYSC_R8A77961)	+= r8a77961-sysc.o
 obj-$(CONFIG_SYSC_R8A77965)	+= r8a77965-sysc.o
 obj-$(CONFIG_SYSC_R8A77970)	+= r8a77970-sysc.o
 obj-$(CONFIG_SYSC_R8A77980)	+= r8a77980-sysc.o
diff --git a/drivers/pmdomain/renesas/r8a77960-sysc.c b/drivers/pmdomain/renesas/r8a77960-sysc.c
new file mode 100644
index 000000000000..2ab3f565d2b0
--- /dev/null
+++ b/drivers/pmdomain/renesas/r8a77960-sysc.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas R-Car M3-W System Controller
+ *
+ * Copyright (C) 2016 Glider bvba
+ * Copyright (C) 2018-2019 Renesas Electronics Corporation
+ */
+
+#include <linux/bits.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7796-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a77960_areas[] __initconst = {
+	{ "always-on",	    0, 0, R8A7796_PD_ALWAYS_ON,	-1, PD_ALWAYS_ON },
+	{ "ca57-scu",	0x1c0, 0, R8A7796_PD_CA57_SCU,	R8A7796_PD_ALWAYS_ON,
+	  PD_SCU },
+	{ "ca57-cpu0",	 0x80, 0, R8A7796_PD_CA57_CPU0,	R8A7796_PD_CA57_SCU,
+	  PD_CPU_NOCR },
+	{ "ca57-cpu1",	 0x80, 1, R8A7796_PD_CA57_CPU1,	R8A7796_PD_CA57_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-scu",	0x140, 0, R8A7796_PD_CA53_SCU,	R8A7796_PD_ALWAYS_ON,
+	  PD_SCU },
+	{ "ca53-cpu0",	0x200, 0, R8A7796_PD_CA53_CPU0,	R8A7796_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-cpu1",	0x200, 1, R8A7796_PD_CA53_CPU1,	R8A7796_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-cpu2",	0x200, 2, R8A7796_PD_CA53_CPU2,	R8A7796_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-cpu3",	0x200, 3, R8A7796_PD_CA53_CPU3,	R8A7796_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "cr7",	0x240, 0, R8A7796_PD_CR7,	R8A7796_PD_ALWAYS_ON },
+	{ "a3vc",	0x380, 0, R8A7796_PD_A3VC,	R8A7796_PD_ALWAYS_ON,
+	  PD_OFF_DELAY },
+	{ "a2vc0",	0x3c0, 0, R8A7796_PD_A2VC0,	R8A7796_PD_A3VC },
+	{ "a2vc1",	0x3c0, 1, R8A7796_PD_A2VC1,	R8A7796_PD_A3VC },
+	{ "3dg-a",	0x100, 0, R8A7796_PD_3DG_A,	R8A7796_PD_ALWAYS_ON },
+	{ "3dg-b",	0x100, 1, R8A7796_PD_3DG_B,	R8A7796_PD_3DG_A },
+	{ "a3ir",	0x180, 0, R8A7796_PD_A3IR,	R8A7796_PD_ALWAYS_ON,
+	  PD_OFF_DELAY },
+};
+
+
+const struct rcar_sysc_info r8a77960_sysc_info __initconst = {
+	.areas = r8a77960_areas,
+	.num_areas = ARRAY_SIZE(r8a77960_areas),
+};
diff --git a/drivers/pmdomain/renesas/r8a7796-sysc.c b/drivers/pmdomain/renesas/r8a77961-sysc.c
index 471bd5b3b6ad..a1155068ee7a 100644
--- a/drivers/pmdomain/renesas/r8a7796-sysc.c
+++ b/drivers/pmdomain/renesas/r8a77961-sysc.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Renesas R-Car M3-W/W+ System Controller
+ * Renesas R-Car M3-W+ System Controller
  *
  * Copyright (C) 2016 Glider bvba
  * Copyright (C) 2018-2019 Renesas Electronics Corporation
@@ -13,7 +13,7 @@
 
 #include "rcar-sysc.h"
 
-static struct rcar_sysc_area r8a7796_areas[] __initdata = {
+static const struct rcar_sysc_area r8a77961_areas[] __initconst = {
 	{ "always-on",	    0, 0, R8A7796_PD_ALWAYS_ON,	-1, PD_ALWAYS_ON },
 	{ "ca57-scu",	0x1c0, 0, R8A7796_PD_CA57_SCU,	R8A7796_PD_ALWAYS_ON,
 	  PD_SCU },
@@ -33,35 +33,15 @@ static struct rcar_sysc_area r8a7796_areas[] __initdata = {
 	  PD_CPU_NOCR },
 	{ "cr7",	0x240, 0, R8A7796_PD_CR7,	R8A7796_PD_ALWAYS_ON },
 	{ "a3vc",	0x380, 0, R8A7796_PD_A3VC,	R8A7796_PD_ALWAYS_ON },
-	{ "a2vc0",	0x3c0, 0, R8A7796_PD_A2VC0,	R8A7796_PD_A3VC },
 	{ "a2vc1",	0x3c0, 1, R8A7796_PD_A2VC1,	R8A7796_PD_A3VC },
 	{ "3dg-a",	0x100, 0, R8A7796_PD_3DG_A,	R8A7796_PD_ALWAYS_ON },
 	{ "3dg-b",	0x100, 1, R8A7796_PD_3DG_B,	R8A7796_PD_3DG_A },
 	{ "a3ir",	0x180, 0, R8A7796_PD_A3IR,	R8A7796_PD_ALWAYS_ON },
 };
 
-
-#ifdef CONFIG_SYSC_R8A77960
-const struct rcar_sysc_info r8a77960_sysc_info __initconst = {
-	.areas = r8a7796_areas,
-	.num_areas = ARRAY_SIZE(r8a7796_areas),
-};
-#endif /* CONFIG_SYSC_R8A77960 */
-
-#ifdef CONFIG_SYSC_R8A77961
-static int __init r8a77961_sysc_init(void)
-{
-	rcar_sysc_nullify(r8a7796_areas, ARRAY_SIZE(r8a7796_areas),
-			  R8A7796_PD_A2VC0);
-
-	return 0;
-}
-
 const struct rcar_sysc_info r8a77961_sysc_info __initconst = {
-	.init = r8a77961_sysc_init,
-	.areas = r8a7796_areas,
-	.num_areas = ARRAY_SIZE(r8a7796_areas),
+	.areas = r8a77961_areas,
+	.num_areas = ARRAY_SIZE(r8a77961_areas),
 	.extmask_offs = 0x2f8,
 	.extmask_val = BIT(0),
 };
-#endif /* CONFIG_SYSC_R8A77961 */
diff --git a/drivers/pmdomain/renesas/rcar-sysc.c b/drivers/pmdomain/renesas/rcar-sysc.c
index 35d9aa0dfab8..b99326917330 100644
--- a/drivers/pmdomain/renesas/rcar-sysc.c
+++ b/drivers/pmdomain/renesas/rcar-sysc.c
@@ -56,17 +56,20 @@
 
 #define RCAR_PD_ALWAYS_ON	32	/* Always-on power area */
 
-struct rcar_sysc_ch {
+struct rcar_sysc_pd {
+	struct generic_pm_domain genpd;
 	u16 chan_offs;
 	u8 chan_bit;
 	u8 isr_bit;
+	unsigned int flags;
+	char name[];
 };
 
 static void __iomem *rcar_sysc_base;
 static DEFINE_SPINLOCK(rcar_sysc_lock); /* SMP CPUs + I/O devices */
 static u32 rcar_sysc_extmask_offs, rcar_sysc_extmask_val;
 
-static int rcar_sysc_pwr_on_off(const struct rcar_sysc_ch *sysc_ch, bool on)
+static int rcar_sysc_pwr_on_off(const struct rcar_sysc_pd *pd, bool on)
 {
 	unsigned int sr_bit, reg_offs;
 	u32 val;
@@ -87,17 +90,20 @@ static int rcar_sysc_pwr_on_off(const struct rcar_sysc_ch *sysc_ch, bool on)
 	if (ret)
 		return -EAGAIN;
 
+	/* Power-off delay quirk */
+	if (!on && (pd->flags & PD_OFF_DELAY))
+		udelay(1);
+
 	/* Submit power shutoff or power resume request */
-	iowrite32(BIT(sysc_ch->chan_bit),
-		  rcar_sysc_base + sysc_ch->chan_offs + reg_offs);
+	iowrite32(BIT(pd->chan_bit), rcar_sysc_base + pd->chan_offs + reg_offs);
 
 	return 0;
 }
 
-static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
+static int rcar_sysc_power(const struct rcar_sysc_pd *pd, bool on)
 {
-	unsigned int isr_mask = BIT(sysc_ch->isr_bit);
-	unsigned int chan_mask = BIT(sysc_ch->chan_bit);
+	unsigned int isr_mask = BIT(pd->isr_bit);
+	unsigned int chan_mask = BIT(pd->chan_bit);
 	unsigned int status, k;
 	unsigned long flags;
 	int ret;
@@ -125,12 +131,11 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
 
 	/* Submit power shutoff or resume request until it was accepted */
 	for (k = 0; k < PWRER_RETRIES; k++) {
-		ret = rcar_sysc_pwr_on_off(sysc_ch, on);
+		ret = rcar_sysc_pwr_on_off(pd, on);
 		if (ret)
 			goto out;
 
-		status = ioread32(rcar_sysc_base +
-				  sysc_ch->chan_offs + PWRER_OFFS);
+		status = ioread32(rcar_sysc_base + pd->chan_offs + PWRER_OFFS);
 		if (!(status & chan_mask))
 			break;
 
@@ -158,28 +163,21 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
 	spin_unlock_irqrestore(&rcar_sysc_lock, flags);
 
 	pr_debug("sysc power %s domain %d: %08x -> %d\n", on ? "on" : "off",
-		 sysc_ch->isr_bit, ioread32(rcar_sysc_base + SYSCISR), ret);
+		 pd->isr_bit, ioread32(rcar_sysc_base + SYSCISR), ret);
 	return ret;
 }
 
-static bool rcar_sysc_power_is_off(const struct rcar_sysc_ch *sysc_ch)
+static bool rcar_sysc_power_is_off(const struct rcar_sysc_pd *pd)
 {
 	unsigned int st;
 
-	st = ioread32(rcar_sysc_base + sysc_ch->chan_offs + PWRSR_OFFS);
-	if (st & BIT(sysc_ch->chan_bit))
+	st = ioread32(rcar_sysc_base + pd->chan_offs + PWRSR_OFFS);
+	if (st & BIT(pd->chan_bit))
 		return true;
 
 	return false;
 }
 
-struct rcar_sysc_pd {
-	struct generic_pm_domain genpd;
-	struct rcar_sysc_ch ch;
-	unsigned int flags;
-	char name[];
-};
-
 static inline struct rcar_sysc_pd *to_rcar_pd(struct generic_pm_domain *d)
 {
 	return container_of(d, struct rcar_sysc_pd, genpd);
@@ -190,7 +188,7 @@ static int rcar_sysc_pd_power_off(struct generic_pm_domain *genpd)
 	struct rcar_sysc_pd *pd = to_rcar_pd(genpd);
 
 	pr_debug("%s: %s\n", __func__, genpd->name);
-	return rcar_sysc_power(&pd->ch, false);
+	return rcar_sysc_power(pd, false);
 }
 
 static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd)
@@ -198,7 +196,7 @@ static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd)
 	struct rcar_sysc_pd *pd = to_rcar_pd(genpd);
 
 	pr_debug("%s: %s\n", __func__, genpd->name);
-	return rcar_sysc_power(&pd->ch, true);
+	return rcar_sysc_power(pd, true);
 }
 
 static bool has_cpg_mstp;
@@ -252,12 +250,12 @@ static int __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd)
 		goto finalize;
 	}
 
-	if (!rcar_sysc_power_is_off(&pd->ch)) {
+	if (!rcar_sysc_power_is_off(pd)) {
 		pr_debug("%s: %s is already powered\n", __func__, genpd->name);
 		goto finalize;
 	}
 
-	rcar_sysc_power(&pd->ch, true);
+	rcar_sysc_power(pd, true);
 
 finalize:
 	error = pm_genpd_init(genpd, &simple_qos_governor, false);
@@ -412,9 +410,9 @@ static int __init rcar_sysc_pd_init(void)
 
 		memcpy(pd->name, area->name, n);
 		pd->genpd.name = pd->name;
-		pd->ch.chan_offs = area->chan_offs;
-		pd->ch.chan_bit = area->chan_bit;
-		pd->ch.isr_bit = area->isr_bit;
+		pd->chan_offs = area->chan_offs;
+		pd->chan_bit = area->chan_bit;
+		pd->isr_bit = area->isr_bit;
 		pd->flags = area->flags;
 
 		error = rcar_sysc_pd_setup(pd);
@@ -445,18 +443,6 @@ out_put:
 }
 early_initcall(rcar_sysc_pd_init);
 
-void __init rcar_sysc_nullify(struct rcar_sysc_area *areas,
-			      unsigned int num_areas, u8 id)
-{
-	unsigned int i;
-
-	for (i = 0; i < num_areas; i++)
-		if (areas[i].isr_bit == id) {
-			areas[i].name = NULL;
-			return;
-		}
-}
-
 #ifdef CONFIG_ARCH_R8A7779
 static int rcar_sysc_power_cpu(unsigned int idx, bool on)
 {
@@ -473,10 +459,10 @@ static int rcar_sysc_power_cpu(unsigned int idx, bool on)
 			continue;
 
 		pd = to_rcar_pd(genpd);
-		if (!(pd->flags & PD_CPU) || pd->ch.chan_bit != idx)
+		if (!(pd->flags & PD_CPU) || pd->chan_bit != idx)
 			continue;
 
-		return rcar_sysc_power(&pd->ch, on);
+		return rcar_sysc_power(pd, on);
 	}
 
 	return -ENOENT;
diff --git a/drivers/pmdomain/renesas/rcar-sysc.h b/drivers/pmdomain/renesas/rcar-sysc.h
index 266c599a0a9b..07ffce310686 100644
--- a/drivers/pmdomain/renesas/rcar-sysc.h
+++ b/drivers/pmdomain/renesas/rcar-sysc.h
@@ -16,6 +16,7 @@
 #define PD_CPU		BIT(0)	/* Area contains main CPU core */
 #define PD_SCU		BIT(1)	/* Area contains SCU and L2 cache */
 #define PD_NO_CR	BIT(2)	/* Area lacks PWR{ON,OFF}CR registers */
+#define PD_OFF_DELAY	BIT(3)	/* Area is subject to power-off delay quirk */
 
 #define PD_CPU_CR	PD_CPU		  /* CPU area has CR (R-Car H1) */
 #define PD_CPU_NOCR	PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
@@ -71,12 +72,4 @@ extern const struct rcar_sysc_info r8a77980_sysc_info;
 extern const struct rcar_sysc_info r8a77990_sysc_info;
 extern const struct rcar_sysc_info r8a77995_sysc_info;
 
-
-    /*
-     * Helpers for fixing up power area tables depending on SoC revision
-     */
-
-extern void rcar_sysc_nullify(struct rcar_sysc_area *areas,
-			      unsigned int num_areas, u8 id);
-
 #endif /* __SOC_RENESAS_RCAR_SYSC_H__ */
diff --git a/drivers/pmdomain/ti/ti_sci_pm_domains.c b/drivers/pmdomain/ti/ti_sci_pm_domains.c
index 9dddf227a3a6..1510d5ddae3d 100644
--- a/drivers/pmdomain/ti/ti_sci_pm_domains.c
+++ b/drivers/pmdomain/ti/ti_sci_pm_domains.c
@@ -114,6 +114,18 @@ static const struct of_device_id ti_sci_pm_domain_matches[] = {
 };
 MODULE_DEVICE_TABLE(of, ti_sci_pm_domain_matches);
 
+static bool ti_sci_pm_idx_exists(struct ti_sci_genpd_provider *pd_provider, u32 idx)
+{
+	struct ti_sci_pm_domain *pd;
+
+	list_for_each_entry(pd, &pd_provider->pd_list, node) {
+		if (pd->idx == idx)
+			return true;
+	}
+
+	return false;
+}
+
 static int ti_sci_pm_domain_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -149,8 +161,14 @@ static int ti_sci_pm_domain_probe(struct platform_device *pdev)
 				break;
 
 			if (args.args_count >= 1 && args.np == dev->of_node) {
-				if (args.args[0] > max_id)
+				if (args.args[0] > max_id) {
 					max_id = args.args[0];
+				} else {
+					if (ti_sci_pm_idx_exists(pd_provider, args.args[0])) {
+						index++;
+						continue;
+					}
+				}
 
 				pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
 				if (!pd) {