Merge tag 'soc-drivers-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "The main change this time was the introduction of the drivers/genpd
  subsystem that gets split out from drivers/soc to keep common
  functionality together.

  The SCMI driver subsystem gets an update to version 3.2 of the
  specification. There are also updates to memory, reset and other
  firmware drivers.

  On the soc driver side, the updates are mostly cleanups across a
  number of Arm platforms. On driver for loongarch adds power management
  for DT based systems, another driver is for HiSilicon's Arm server
  chips with their HCCS system health interface.

  The remaining updates for the most part add support for additional
  hardware in existing drivers or contain minor cleanups. Most of these
  are for the Qualcomm Snapdragon platform"

* tag 'soc-drivers-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (136 commits)
  bus: fsl-mc: Use common ranges functions
  soc: kunpeng_hccs: fix some sparse warnings about incorrect type
  soc: loongson2_pm: add power management support
  soc: dt-bindings: add loongson-2 pm
  soc: rockchip: grf: Fix SDMMC not working on RK3588 with bus-width > 1
  genpd: rockchip: Add PD_VO entry for rv1126
  bus: ti-sysc: Fix cast to enum warning
  soc: kunpeng_hccs: add MAILBOX dependency
  MAINTAINERS: remove OXNAS entry
  dt-bindings: interrupt-controller: arm,versatile-fpga-irq: mark oxnas compatible as deprecated
  irqchip: irq-versatile-fpga: remove obsolete oxnas compatible
  soc: qcom: aoss: Tidy up qmp_send() callers
  soc: qcom: aoss: Format string in qmp_send()
  soc: qcom: aoss: Move length requirements from caller
  soc: kunpeng_hccs: fix size_t format string
  soc: ti: k3-socinfo.c: Add JTAG ID for AM62PX
  dt-bindings: firmware: qcom: scm: Updating VMID list
  firmware: imx: scu-irq: support identifying SCU wakeup source from sysfs
  firmware: imx: scu-irq: enlarge the IMX_SC_IRQ_NUM_GROUP
  firmware: imx: scu-irq: add imx_scu_irq_get_status
  ...

7 files changed, 533 insertions, 251 deletions

diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index ecf5c4de851b..c0cd556fbaae 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -2,19 +2,22 @@
 /*
  * System Control and Management Interface (SCMI) Performance Protocol
  *
- * Copyright (C) 2018-2022 ARM Ltd.
+ * Copyright (C) 2018-2023 ARM Ltd.
  */
 
 #define pr_fmt(fmt) "SCMI Notifications PERF - " fmt
 
 #include <linux/bits.h>
-#include <linux/of.h>
+#include <linux/hashtable.h>
 #include <linux/io.h>
+#include <linux/log2.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_opp.h>
 #include <linux/scmi_protocol.h>
 #include <linux/sort.h>
+#include <linux/xarray.h>
 
 #include <trace/events/scmi.h>
 
@@ -46,6 +49,9 @@ struct scmi_opp {
 	u32 perf;
 	u32 power;
 	u32 trans_latency_us;
+	u32 indicative_freq;
+	u32 level_index;
+	struct hlist_node hash;
 };
 
 struct scmi_msg_resp_perf_attributes {
@@ -66,6 +72,7 @@ struct scmi_msg_resp_perf_domain_attributes {
 #define SUPPORTS_PERF_LEVEL_NOTIFY(x)	((x) & BIT(28))
 #define SUPPORTS_PERF_FASTCHANNELS(x)	((x) & BIT(27))
 #define SUPPORTS_EXTENDED_NAMES(x)	((x) & BIT(26))
+#define SUPPORTS_LEVEL_INDEXING(x)	((x) & BIT(25))
 	__le32 rate_limit_us;
 	__le32 sustained_freq_khz;
 	__le32 sustained_perf_level;
@@ -122,12 +129,27 @@ struct scmi_msg_resp_perf_describe_levels {
 	} opp[];
 };
 
+struct scmi_msg_resp_perf_describe_levels_v4 {
+	__le16 num_returned;
+	__le16 num_remaining;
+	struct {
+		__le32 perf_val;
+		__le32 power;
+		__le16 transition_latency_us;
+		__le16 reserved;
+		__le32 indicative_freq;
+		__le32 level_index;
+	} opp[];
+};
+
 struct perf_dom_info {
+	u32 id;
 	bool set_limits;
 	bool set_perf;
 	bool perf_limit_notify;
 	bool perf_level_notify;
 	bool perf_fastchannels;
+	bool level_indexing_mode;
 	u32 opp_count;
 	u32 sustained_freq_khz;
 	u32 sustained_perf_level;
@@ -135,11 +157,26 @@ struct perf_dom_info {
 	char name[SCMI_MAX_STR_SIZE];
 	struct scmi_opp opp[MAX_OPPS];
 	struct scmi_fc_info *fc_info;
+	struct xarray opps_by_idx;
+	struct xarray opps_by_lvl;
+	DECLARE_HASHTABLE(opps_by_freq, ilog2(MAX_OPPS));
 };
 
+#define LOOKUP_BY_FREQ(__htp, __freq)					\
+({									\
+		/* u32 cast is needed to pick right hash func */	\
+		u32 f_ = (u32)(__freq);					\
+		struct scmi_opp *_opp;					\
+									\
+		hash_for_each_possible((__htp), _opp, hash, f_)		\
+			if (_opp->indicative_freq == f_)		\
+				break;					\
+		_opp;							\
+})
+
 struct scmi_perf_info {
 	u32 version;
-	int num_domains;
+	u16 num_domains;
 	enum scmi_power_scale power_scale;
 	u64 stats_addr;
 	u32 stats_size;
@@ -186,9 +223,20 @@ static int scmi_perf_attributes_get(const struct scmi_protocol_handle *ph,
 	return ret;
 }
 
+static void scmi_perf_xa_destroy(void *data)
+{
+	int domain;
+	struct scmi_perf_info *pinfo = data;
+
+	for (domain = 0; domain < pinfo->num_domains; domain++) {
+		xa_destroy(&((pinfo->dom_info + domain)->opps_by_idx));
+		xa_destroy(&((pinfo->dom_info + domain)->opps_by_lvl));
+	}
+}
+
 static int
 scmi_perf_domain_attributes_get(const struct scmi_protocol_handle *ph,
-				u32 domain, struct perf_dom_info *dom_info,
+				struct perf_dom_info *dom_info,
 				u32 version)
 {
 	int ret;
@@ -197,11 +245,11 @@ scmi_perf_domain_attributes_get(const struct scmi_protocol_handle *ph,
 	struct scmi_msg_resp_perf_domain_attributes *attr;
 
 	ret = ph->xops->xfer_get_init(ph, PERF_DOMAIN_ATTRIBUTES,
-				     sizeof(domain), sizeof(*attr), &t);
+				      sizeof(dom_info->id), sizeof(*attr), &t);
 	if (ret)
 		return ret;
 
-	put_unaligned_le32(domain, t->tx.buf);
+	put_unaligned_le32(dom_info->id, t->tx.buf);
 	attr = t->rx.buf;
 
 	ret = ph->xops->do_xfer(ph, t);
@@ -213,6 +261,9 @@ scmi_perf_domain_attributes_get(const struct scmi_protocol_handle *ph,
 		dom_info->perf_limit_notify = SUPPORTS_PERF_LIMIT_NOTIFY(flags);
 		dom_info->perf_level_notify = SUPPORTS_PERF_LEVEL_NOTIFY(flags);
 		dom_info->perf_fastchannels = SUPPORTS_PERF_FASTCHANNELS(flags);
+		if (PROTOCOL_REV_MAJOR(version) >= 0x4)
+			dom_info->level_indexing_mode =
+				SUPPORTS_LEVEL_INDEXING(flags);
 		dom_info->sustained_freq_khz =
 					le32_to_cpu(attr->sustained_freq_khz);
 		dom_info->sustained_perf_level =
@@ -236,8 +287,15 @@ scmi_perf_domain_attributes_get(const struct scmi_protocol_handle *ph,
 	 */
 	if (!ret && PROTOCOL_REV_MAJOR(version) >= 0x3 &&
 	    SUPPORTS_EXTENDED_NAMES(flags))
-		ph->hops->extended_name_get(ph, PERF_DOMAIN_NAME_GET, domain,
-					    dom_info->name, SCMI_MAX_STR_SIZE);
+		ph->hops->extended_name_get(ph, PERF_DOMAIN_NAME_GET,
+					    dom_info->id, dom_info->name,
+					    SCMI_MAX_STR_SIZE);
+
+	if (dom_info->level_indexing_mode) {
+		xa_init(&dom_info->opps_by_idx);
+		xa_init(&dom_info->opps_by_lvl);
+		hash_init(dom_info->opps_by_freq);
+	}
 
 	return ret;
 }
@@ -250,7 +308,7 @@ static int opp_cmp_func(const void *opp1, const void *opp2)
 }
 
 struct scmi_perf_ipriv {
-	u32 domain;
+	u32 version;
 	struct perf_dom_info *perf_dom;
 };
 
@@ -261,7 +319,7 @@ static void iter_perf_levels_prepare_message(void *message,
 	struct scmi_msg_perf_describe_levels *msg = message;
 	const struct scmi_perf_ipriv *p = priv;
 
-	msg->domain = cpu_to_le32(p->domain);
+	msg->domain = cpu_to_le32(p->perf_dom->id);
 	/* Set the number of OPPs to be skipped/already read */
 	msg->level_index = cpu_to_le32(desc_index);
 }
@@ -277,31 +335,63 @@ static int iter_perf_levels_update_state(struct scmi_iterator_state *st,
 	return 0;
 }
 
+static inline void
+process_response_opp(struct scmi_opp *opp, unsigned int loop_idx,
+		     const struct scmi_msg_resp_perf_describe_levels *r)
+{
+	opp->perf = le32_to_cpu(r->opp[loop_idx].perf_val);
+	opp->power = le32_to_cpu(r->opp[loop_idx].power);
+	opp->trans_latency_us =
+		le16_to_cpu(r->opp[loop_idx].transition_latency_us);
+}
+
+static inline void
+process_response_opp_v4(struct perf_dom_info *dom, struct scmi_opp *opp,
+			unsigned int loop_idx,
+			const struct scmi_msg_resp_perf_describe_levels_v4 *r)
+{
+	opp->perf = le32_to_cpu(r->opp[loop_idx].perf_val);
+	opp->power = le32_to_cpu(r->opp[loop_idx].power);
+	opp->trans_latency_us =
+		le16_to_cpu(r->opp[loop_idx].transition_latency_us);
+
+	/* Note that PERF v4 reports always five 32-bit words */
+	opp->indicative_freq = le32_to_cpu(r->opp[loop_idx].indicative_freq);
+	if (dom->level_indexing_mode) {
+		opp->level_index = le32_to_cpu(r->opp[loop_idx].level_index);
+
+		xa_store(&dom->opps_by_idx, opp->level_index, opp, GFP_KERNEL);
+		xa_store(&dom->opps_by_lvl, opp->perf, opp, GFP_KERNEL);
+		hash_add(dom->opps_by_freq, &opp->hash, opp->indicative_freq);
+	}
+}
+
 static int
 iter_perf_levels_process_response(const struct scmi_protocol_handle *ph,
 				  const void *response,
 				  struct scmi_iterator_state *st, void *priv)
 {
 	struct scmi_opp *opp;
-	const struct scmi_msg_resp_perf_describe_levels *r = response;
 	struct scmi_perf_ipriv *p = priv;
 
 	opp = &p->perf_dom->opp[st->desc_index + st->loop_idx];
-	opp->perf = le32_to_cpu(r->opp[st->loop_idx].perf_val);
-	opp->power = le32_to_cpu(r->opp[st->loop_idx].power);
-	opp->trans_latency_us =
-		le16_to_cpu(r->opp[st->loop_idx].transition_latency_us);
+	if (PROTOCOL_REV_MAJOR(p->version) <= 0x3)
+		process_response_opp(opp, st->loop_idx, response);
+	else
+		process_response_opp_v4(p->perf_dom, opp, st->loop_idx,
+					response);
 	p->perf_dom->opp_count++;
 
-	dev_dbg(ph->dev, "Level %d Power %d Latency %dus\n",
-		opp->perf, opp->power, opp->trans_latency_us);
+	dev_dbg(ph->dev, "Level %d Power %d Latency %dus Ifreq %d Index %d\n",
+		opp->perf, opp->power, opp->trans_latency_us,
+		opp->indicative_freq, opp->level_index);
 
 	return 0;
 }
 
 static int
-scmi_perf_describe_levels_get(const struct scmi_protocol_handle *ph, u32 domain,
-			      struct perf_dom_info *perf_dom)
+scmi_perf_describe_levels_get(const struct scmi_protocol_handle *ph,
+			      struct perf_dom_info *perf_dom, u32 version)
 {
 	int ret;
 	void *iter;
@@ -311,7 +401,7 @@ scmi_perf_describe_levels_get(const struct scmi_protocol_handle *ph, u32 domain,
 		.process_response = iter_perf_levels_process_response,
 	};
 	struct scmi_perf_ipriv ppriv = {
-		.domain = domain,
+		.version = version,
 		.perf_dom = perf_dom,
 	};
 
@@ -333,8 +423,8 @@ scmi_perf_describe_levels_get(const struct scmi_protocol_handle *ph, u32 domain,
 	return ret;
 }
 
-static int scmi_perf_mb_limits_set(const struct scmi_protocol_handle *ph,
-				   u32 domain, u32 max_perf, u32 min_perf)
+static int scmi_perf_msg_limits_set(const struct scmi_protocol_handle *ph,
+				    u32 domain, u32 max_perf, u32 min_perf)
 {
 	int ret;
 	struct scmi_xfer *t;
@@ -356,31 +446,73 @@ static int scmi_perf_mb_limits_set(const struct scmi_protocol_handle *ph,
 	return ret;
 }
 
-static int scmi_perf_limits_set(const struct scmi_protocol_handle *ph,
-				u32 domain, u32 max_perf, u32 min_perf)
+static inline struct perf_dom_info *
+scmi_perf_domain_lookup(const struct scmi_protocol_handle *ph, u32 domain)
 {
 	struct scmi_perf_info *pi = ph->get_priv(ph);
-	struct perf_dom_info *dom = pi->dom_info + domain;
 
-	if (PROTOCOL_REV_MAJOR(pi->version) >= 0x3 && !max_perf && !min_perf)
-		return -EINVAL;
+	if (domain >= pi->num_domains)
+		return ERR_PTR(-EINVAL);
 
+	return pi->dom_info + domain;
+}
+
+static int __scmi_perf_limits_set(const struct scmi_protocol_handle *ph,
+				  struct perf_dom_info *dom, u32 max_perf,
+				  u32 min_perf)
+{
 	if (dom->fc_info && dom->fc_info[PERF_FC_LIMIT].set_addr) {
 		struct scmi_fc_info *fci = &dom->fc_info[PERF_FC_LIMIT];
 
 		trace_scmi_fc_call(SCMI_PROTOCOL_PERF, PERF_LIMITS_SET,
-				   domain, min_perf, max_perf);
+				   dom->id, min_perf, max_perf);
 		iowrite32(max_perf, fci->set_addr);
 		iowrite32(min_perf, fci->set_addr + 4);
 		ph->hops->fastchannel_db_ring(fci->set_db);
 		return 0;
 	}
 
-	return scmi_perf_mb_limits_set(ph, domain, max_perf, min_perf);
+	return scmi_perf_msg_limits_set(ph, dom->id, max_perf, min_perf);
 }
 
-static int scmi_perf_mb_limits_get(const struct scmi_protocol_handle *ph,
-				   u32 domain, u32 *max_perf, u32 *min_perf)
+static int scmi_perf_limits_set(const struct scmi_protocol_handle *ph,
+				u32 domain, u32 max_perf, u32 min_perf)
+{
+	struct scmi_perf_info *pi = ph->get_priv(ph);
+	struct perf_dom_info *dom;
+
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
+
+	if (PROTOCOL_REV_MAJOR(pi->version) >= 0x3 && !max_perf && !min_perf)
+		return -EINVAL;
+
+	if (dom->level_indexing_mode) {
+		struct scmi_opp *opp;
+
+		if (min_perf) {
+			opp = xa_load(&dom->opps_by_lvl, min_perf);
+			if (!opp)
+				return -EIO;
+
+			min_perf = opp->level_index;
+		}
+
+		if (max_perf) {
+			opp = xa_load(&dom->opps_by_lvl, max_perf);
+			if (!opp)
+				return -EIO;
+
+			max_perf = opp->level_index;
+		}
+	}
+
+	return __scmi_perf_limits_set(ph, dom, max_perf, min_perf);
+}
+
+static int scmi_perf_msg_limits_get(const struct scmi_protocol_handle *ph,
+				    u32 domain, u32 *max_perf, u32 *min_perf)
 {
 	int ret;
 	struct scmi_xfer *t;
@@ -405,27 +537,58 @@ static int scmi_perf_mb_limits_get(const struct scmi_protocol_handle *ph,
 	return ret;
 }
 
-static int scmi_perf_limits_get(const struct scmi_protocol_handle *ph,
-				u32 domain, u32 *max_perf, u32 *min_perf)
+static int __scmi_perf_limits_get(const struct scmi_protocol_handle *ph,
+				  struct perf_dom_info *dom, u32 *max_perf,
+				  u32 *min_perf)
 {
-	struct scmi_perf_info *pi = ph->get_priv(ph);
-	struct perf_dom_info *dom = pi->dom_info + domain;
-
 	if (dom->fc_info && dom->fc_info[PERF_FC_LIMIT].get_addr) {
 		struct scmi_fc_info *fci = &dom->fc_info[PERF_FC_LIMIT];
 
 		*max_perf = ioread32(fci->get_addr);
 		*min_perf = ioread32(fci->get_addr + 4);
 		trace_scmi_fc_call(SCMI_PROTOCOL_PERF, PERF_LIMITS_GET,
-				   domain, *min_perf, *max_perf);
+				   dom->id, *min_perf, *max_perf);
 		return 0;
 	}
 
-	return scmi_perf_mb_limits_get(ph, domain, max_perf, min_perf);
+	return scmi_perf_msg_limits_get(ph, dom->id, max_perf, min_perf);
 }
 
-static int scmi_perf_mb_level_set(const struct scmi_protocol_handle *ph,
-				  u32 domain, u32 level, bool poll)
+static int scmi_perf_limits_get(const struct scmi_protocol_handle *ph,
+				u32 domain, u32 *max_perf, u32 *min_perf)
+{
+	int ret;
+	struct perf_dom_info *dom;
+
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
+
+	ret = __scmi_perf_limits_get(ph, dom, max_perf, min_perf);
+	if (ret)
+		return ret;
+
+	if (dom->level_indexing_mode) {
+		struct scmi_opp *opp;
+
+		opp = xa_load(&dom->opps_by_idx, *min_perf);
+		if (!opp)
+			return -EIO;
+
+		*min_perf = opp->perf;
+
+		opp = xa_load(&dom->opps_by_idx, *max_perf);
+		if (!opp)
+			return -EIO;
+
+		*max_perf = opp->perf;
+	}
+
+	return 0;
+}
+
+static int scmi_perf_msg_level_set(const struct scmi_protocol_handle *ph,
+				   u32 domain, u32 level, bool poll)
 {
 	int ret;
 	struct scmi_xfer *t;
@@ -446,27 +609,47 @@ static int scmi_perf_mb_level_set(const struct scmi_protocol_handle *ph,
 	return ret;
 }
 
-static int scmi_perf_level_set(const struct scmi_protocol_handle *ph,
-			       u32 domain, u32 level, bool poll)
+static int __scmi_perf_level_set(const struct scmi_protocol_handle *ph,
+				 struct perf_dom_info *dom, u32 level,
+				 bool poll)
 {
-	struct scmi_perf_info *pi = ph->get_priv(ph);
-	struct perf_dom_info *dom = pi->dom_info + domain;
-
 	if (dom->fc_info && dom->fc_info[PERF_FC_LEVEL].set_addr) {
 		struct scmi_fc_info *fci = &dom->fc_info[PERF_FC_LEVEL];
 
 		trace_scmi_fc_call(SCMI_PROTOCOL_PERF, PERF_LEVEL_SET,
-				   domain, level, 0);
+				   dom->id, level, 0);
 		iowrite32(level, fci->set_addr);
 		ph->hops->fastchannel_db_ring(fci->set_db);
 		return 0;
 	}
 
-	return scmi_perf_mb_level_set(ph, domain, level, poll);
+	return scmi_perf_msg_level_set(ph, dom->id, level, poll);
 }
 
-static int scmi_perf_mb_level_get(const struct scmi_protocol_handle *ph,
-				  u32 domain, u32 *level, bool poll)
+static int scmi_perf_level_set(const struct scmi_protocol_handle *ph,
+			       u32 domain, u32 level, bool poll)
+{
+	struct perf_dom_info *dom;
+
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
+
+	if (dom->level_indexing_mode) {
+		struct scmi_opp *opp;
+
+		opp = xa_load(&dom->opps_by_lvl, level);
+		if (!opp)
+			return -EIO;
+
+		level = opp->level_index;
+	}
+
+	return __scmi_perf_level_set(ph, dom, level, poll);
+}
+
+static int scmi_perf_msg_level_get(const struct scmi_protocol_handle *ph,
+				   u32 domain, u32 *level, bool poll)
 {
 	int ret;
 	struct scmi_xfer *t;
@@ -487,20 +670,45 @@ static int scmi_perf_mb_level_get(const struct scmi_protocol_handle *ph,
 	return ret;
 }
 
-static int scmi_perf_level_get(const struct scmi_protocol_handle *ph,
-			       u32 domain, u32 *level, bool poll)
+static int __scmi_perf_level_get(const struct scmi_protocol_handle *ph,
+				 struct perf_dom_info *dom, u32 *level,
+				 bool poll)
 {
-	struct scmi_perf_info *pi = ph->get_priv(ph);
-	struct perf_dom_info *dom = pi->dom_info + domain;
-
 	if (dom->fc_info && dom->fc_info[PERF_FC_LEVEL].get_addr) {
 		*level = ioread32(dom->fc_info[PERF_FC_LEVEL].get_addr);
 		trace_scmi_fc_call(SCMI_PROTOCOL_PERF, PERF_LEVEL_GET,
-				   domain, *level, 0);
+				   dom->id, *level, 0);
 		return 0;
 	}
 
-	return scmi_perf_mb_level_get(ph, domain, level, poll);
+	return scmi_perf_msg_level_get(ph, dom->id, level, poll);
+}
+
+static int scmi_perf_level_get(const struct scmi_protocol_handle *ph,
+			       u32 domain, u32 *level, bool poll)
+{
+	int ret;
+	struct perf_dom_info *dom;
+
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
+
+	ret = __scmi_perf_level_get(ph, dom, level, poll);
+	if (ret)
+		return ret;
+
+	if (dom->level_indexing_mode) {
+		struct scmi_opp *opp;
+
+		opp = xa_load(&dom->opps_by_idx, *level);
+		if (!opp)
+			return -EIO;
+
+		*level = opp->perf;
+	}
+
+	return 0;
 }
 
 static int scmi_perf_level_limits_notify(const struct scmi_protocol_handle *ph,
@@ -574,27 +782,37 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph,
 	unsigned long freq;
 	struct scmi_opp *opp;
 	struct perf_dom_info *dom;
-	struct scmi_perf_info *pi = ph->get_priv(ph);
 
 	domain = scmi_dev_domain_id(dev);
 	if (domain < 0)
-		return domain;
+		return -EINVAL;
 
-	dom = pi->dom_info + domain;
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
 
 	for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) {
-		freq = opp->perf * dom->mult_factor;
+		if (!dom->level_indexing_mode)
+			freq = opp->perf * dom->mult_factor;
+		else
+			freq = opp->indicative_freq * 1000;
 
 		ret = dev_pm_opp_add(dev, freq, 0);
 		if (ret) {
 			dev_warn(dev, "failed to add opp %luHz\n", freq);
 
 			while (idx-- > 0) {
-				freq = (--opp)->perf * dom->mult_factor;
+				if (!dom->level_indexing_mode)
+					freq = (--opp)->perf * dom->mult_factor;
+				else
+					freq = (--opp)->indicative_freq * 1000;
 				dev_pm_opp_remove(dev, freq);
 			}
 			return ret;
 		}
+
+		dev_dbg(dev, "[%d][%s]:: Registered OPP[%d] %lu\n",
+			domain, dom->name, idx, freq);
 	}
 	return 0;
 }
@@ -603,14 +821,17 @@ static int
 scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph,
 				 struct device *dev)
 {
+	int domain;
 	struct perf_dom_info *dom;
-	struct scmi_perf_info *pi = ph->get_priv(ph);
-	int domain = scmi_dev_domain_id(dev);
 
+	domain = scmi_dev_domain_id(dev);
 	if (domain < 0)
-		return domain;
+		return -EINVAL;
+
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
 
-	dom = pi->dom_info + domain;
 	/* uS to nS */
 	return dom->opp[dom->opp_count - 1].trans_latency_us * 1000;
 }
@@ -618,10 +839,26 @@ scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph,
 static int scmi_dvfs_freq_set(const struct scmi_protocol_handle *ph, u32 domain,
 			      unsigned long freq, bool poll)
 {
-	struct scmi_perf_info *pi = ph->get_priv(ph);
-	struct perf_dom_info *dom = pi->dom_info + domain;
+	unsigned int level;
+	struct perf_dom_info *dom;
+
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
 
-	return scmi_perf_level_set(ph, domain, freq / dom->mult_factor, poll);
+	if (!dom->level_indexing_mode) {
+		level = freq / dom->mult_factor;
+	} else {
+		struct scmi_opp *opp;
+
+		opp = LOOKUP_BY_FREQ(dom->opps_by_freq, freq / 1000);
+		if (!opp)
+			return -EIO;
+
+		level = opp->level_index;
+	}
+
+	return __scmi_perf_level_set(ph, dom, level, poll);
 }
 
 static int scmi_dvfs_freq_get(const struct scmi_protocol_handle *ph, u32 domain,
@@ -629,12 +866,27 @@ static int scmi_dvfs_freq_get(const struct scmi_protocol_handle *ph, u32 domain,
 {
 	int ret;
 	u32 level;
-	struct scmi_perf_info *pi = ph->get_priv(ph);
-	struct perf_dom_info *dom = pi->dom_info + domain;
+	struct perf_dom_info *dom;
 
-	ret = scmi_perf_level_get(ph, domain, &level, poll);
-	if (!ret)
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
+
+	ret = __scmi_perf_level_get(ph, dom, &level, poll);
+	if (ret)
+		return ret;
+
+	if (!dom->level_indexing_mode) {
 		*freq = level * dom->mult_factor;
+	} else {
+		struct scmi_opp *opp;
+
+		opp = xa_load(&dom->opps_by_idx, level);
+		if (!opp)
+			return -EIO;
+
+		*freq = opp->indicative_freq * 1000;
+	}
 
 	return ret;
 }
@@ -643,18 +895,21 @@ static int scmi_dvfs_est_power_get(const struct scmi_protocol_handle *ph,
 				   u32 domain, unsigned long *freq,
 				   unsigned long *power)
 {
-	struct scmi_perf_info *pi = ph->get_priv(ph);
 	struct perf_dom_info *dom;
 	unsigned long opp_freq;
 	int idx, ret = -EINVAL;
 	struct scmi_opp *opp;
 
-	dom = pi->dom_info + domain;
-	if (!dom)
-		return -EIO;
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return PTR_ERR(dom);
 
 	for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) {
-		opp_freq = opp->perf * dom->mult_factor;
+		if (!dom->level_indexing_mode)
+			opp_freq = opp->perf * dom->mult_factor;
+		else
+			opp_freq = opp->indicative_freq * 1000;
+
 		if (opp_freq < *freq)
 			continue;
 
@@ -670,10 +925,16 @@ static int scmi_dvfs_est_power_get(const struct scmi_protocol_handle *ph,
 static bool scmi_fast_switch_possible(const struct scmi_protocol_handle *ph,
 				      struct device *dev)
 {
+	int domain;
 	struct perf_dom_info *dom;
-	struct scmi_perf_info *pi = ph->get_priv(ph);
 
-	dom = pi->dom_info + scmi_dev_domain_id(dev);
+	domain = scmi_dev_domain_id(dev);
+	if (domain < 0)
+		return false;
+
+	dom = scmi_perf_domain_lookup(ph, domain);
+	if (IS_ERR(dom))
+		return false;
 
 	return dom->fc_info && dom->fc_info[PERF_FC_LEVEL].set_addr;
 }
@@ -831,13 +1092,18 @@ static int scmi_perf_protocol_init(const struct scmi_protocol_handle *ph)
 	for (domain = 0; domain < pinfo->num_domains; domain++) {
 		struct perf_dom_info *dom = pinfo->dom_info + domain;
 
-		scmi_perf_domain_attributes_get(ph, domain, dom, version);
-		scmi_perf_describe_levels_get(ph, domain, dom);
+		dom->id = domain;
+		scmi_perf_domain_attributes_get(ph, dom, version);
+		scmi_perf_describe_levels_get(ph, dom, version);
 
 		if (dom->perf_fastchannels)
-			scmi_perf_domain_init_fc(ph, domain, &dom->fc_info);
+			scmi_perf_domain_init_fc(ph, dom->id, &dom->fc_info);
 	}
 
+	ret = devm_add_action_or_reset(ph->dev, scmi_perf_xa_destroy, pinfo);
+	if (ret)
+		return ret;
+
 	pinfo->version = version;
 
 	return ph->set_priv(ph, pinfo);
diff --git a/drivers/firmware/imx/imx-scu-irq.c b/drivers/firmware/imx/imx-scu-irq.c
index d9dcc20945c6..7cc0dec04587 100644
--- a/drivers/firmware/imx/imx-scu-irq.c
+++ b/drivers/firmware/imx/imx-scu-irq.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright 2019 NXP
+ * Copyright 2019,2023 NXP
  *
  * Implementation of the SCU IRQ functions using MU.
  *
@@ -9,12 +9,14 @@
 #include <dt-bindings/firmware/imx/rsrc.h>
 #include <linux/firmware/imx/ipc.h>
 #include <linux/firmware/imx/sci.h>
+#include <linux/kobject.h>
 #include <linux/mailbox_client.h>
 #include <linux/suspend.h>
+#include <linux/sysfs.h>
 
 #define IMX_SC_IRQ_FUNC_ENABLE	1
 #define IMX_SC_IRQ_FUNC_STATUS	2
-#define IMX_SC_IRQ_NUM_GROUP	4
+#define IMX_SC_IRQ_NUM_GROUP	9
 
 static u32 mu_resource_id;
 
@@ -40,63 +42,102 @@ struct imx_sc_msg_irq_enable {
 	u8 enable;
 } __packed;
 
+struct scu_wakeup {
+	u32 mask;
+	u32 wakeup_src;
+	bool valid;
+};
+
+/* Sysfs functions */
+static struct kobject *wakeup_obj;
+static ssize_t wakeup_source_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf);
+static struct kobj_attribute wakeup_source_attr =
+		__ATTR(wakeup_src, 0660, wakeup_source_show, NULL);
+
+static struct scu_wakeup scu_irq_wakeup[IMX_SC_IRQ_NUM_GROUP];
+
 static struct imx_sc_ipc *imx_sc_irq_ipc_handle;
 static struct work_struct imx_sc_irq_work;
-static ATOMIC_NOTIFIER_HEAD(imx_scu_irq_notifier_chain);
+static BLOCKING_NOTIFIER_HEAD(imx_scu_irq_notifier_chain);
 
 int imx_scu_irq_register_notifier(struct notifier_block *nb)
 {
-	return atomic_notifier_chain_register(
+	return blocking_notifier_chain_register(
 		&imx_scu_irq_notifier_chain, nb);
 }
 EXPORT_SYMBOL(imx_scu_irq_register_notifier);
 
 int imx_scu_irq_unregister_notifier(struct notifier_block *nb)
 {
-	return atomic_notifier_chain_unregister(
+	return blocking_notifier_chain_unregister(
 		&imx_scu_irq_notifier_chain, nb);
 }
 EXPORT_SYMBOL(imx_scu_irq_unregister_notifier);
 
 static int imx_scu_irq_notifier_call_chain(unsigned long status, u8 *group)
 {
-	return atomic_notifier_call_chain(&imx_scu_irq_notifier_chain,
+	return blocking_notifier_call_chain(&imx_scu_irq_notifier_chain,
 		status, (void *)group);
 }
 
 static void imx_scu_irq_work_handler(struct work_struct *work)
 {
-	struct imx_sc_msg_irq_get_status msg;
-	struct imx_sc_rpc_msg *hdr = &msg.hdr;
 	u32 irq_status;
 	int ret;
 	u8 i;
 
 	for (i = 0; i < IMX_SC_IRQ_NUM_GROUP; i++) {
-		hdr->ver = IMX_SC_RPC_VERSION;
-		hdr->svc = IMX_SC_RPC_SVC_IRQ;
-		hdr->func = IMX_SC_IRQ_FUNC_STATUS;
-		hdr->size = 2;
-
-		msg.data.req.resource = mu_resource_id;
-		msg.data.req.group = i;
+		if (scu_irq_wakeup[i].mask) {
+			scu_irq_wakeup[i].valid = false;
+			scu_irq_wakeup[i].wakeup_src = 0;
+		}
 
-		ret = imx_scu_call_rpc(imx_sc_irq_ipc_handle, &msg, true);
+		ret = imx_scu_irq_get_status(i, &irq_status);
 		if (ret) {
 			pr_err("get irq group %d status failed, ret %d\n",
 			       i, ret);
 			return;
 		}
 
-		irq_status = msg.data.resp.status;
 		if (!irq_status)
 			continue;
+		if (scu_irq_wakeup[i].mask & irq_status) {
+			scu_irq_wakeup[i].valid = true;
+			scu_irq_wakeup[i].wakeup_src = irq_status & scu_irq_wakeup[i].mask;
+		} else {
+			scu_irq_wakeup[i].wakeup_src = irq_status;
+		}
 
 		pm_system_wakeup();
 		imx_scu_irq_notifier_call_chain(irq_status, &i);
 	}
 }
 
+int imx_scu_irq_get_status(u8 group, u32 *irq_status)
+{
+	struct imx_sc_msg_irq_get_status msg;
+	struct imx_sc_rpc_msg *hdr = &msg.hdr;
+	int ret;
+
+	hdr->ver = IMX_SC_RPC_VERSION;
+	hdr->svc = IMX_SC_RPC_SVC_IRQ;
+	hdr->func = IMX_SC_IRQ_FUNC_STATUS;
+	hdr->size = 2;
+
+	msg.data.req.resource = mu_resource_id;
+	msg.data.req.group = group;
+
+	ret = imx_scu_call_rpc(imx_sc_irq_ipc_handle, &msg, true);
+	if (ret)
+		return ret;
+
+	if (irq_status)
+		*irq_status = msg.data.resp.status;
+
+	return 0;
+}
+EXPORT_SYMBOL(imx_scu_irq_get_status);
+
 int imx_scu_irq_group_enable(u8 group, u32 mask, u8 enable)
 {
 	struct imx_sc_msg_irq_enable msg;
@@ -121,6 +162,11 @@ int imx_scu_irq_group_enable(u8 group, u32 mask, u8 enable)
 		pr_err("enable irq failed, group %d, mask %d, ret %d\n",
 			group, mask, ret);
 
+	if (enable)
+		scu_irq_wakeup[group].mask |= mask;
+	else
+		scu_irq_wakeup[group].mask &= ~mask;
+
 	return ret;
 }
 EXPORT_SYMBOL(imx_scu_irq_group_enable);
@@ -130,6 +176,25 @@ static void imx_scu_irq_callback(struct mbox_client *c, void *msg)
 	schedule_work(&imx_sc_irq_work);
 }
 
+static ssize_t wakeup_source_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
+{
+	int i;
+
+	for (i = 0; i < IMX_SC_IRQ_NUM_GROUP; i++) {
+		if (!scu_irq_wakeup[i].wakeup_src)
+			continue;
+
+		if (scu_irq_wakeup[i].valid)
+			sprintf(buf, "Wakeup source group = %d, irq = 0x%x\n",
+				i, scu_irq_wakeup[i].wakeup_src);
+		else
+			sprintf(buf, "Spurious SCU wakeup, group = %d, irq = 0x%x\n",
+				i, scu_irq_wakeup[i].wakeup_src);
+	}
+
+	return strlen(buf);
+}
+
 int imx_scu_enable_general_irq_channel(struct device *dev)
 {
 	struct of_phandle_args spec;
@@ -169,6 +234,25 @@ int imx_scu_enable_general_irq_channel(struct device *dev)
 
 	mu_resource_id = IMX_SC_R_MU_0A + i;
 
+	/* Create directory under /sysfs/firmware */
+	wakeup_obj = kobject_create_and_add("scu_wakeup_source", firmware_kobj);
+	if (!wakeup_obj) {
+		ret = -ENOMEM;
+		goto free_ch;
+	}
+
+	ret = sysfs_create_file(wakeup_obj, &wakeup_source_attr.attr);
+	if (ret) {
+		dev_err(dev, "Cannot create wakeup source src file......\n");
+		kobject_put(wakeup_obj);
+		goto free_ch;
+	}
+
+	return 0;
+
+free_ch:
+	mbox_free_channel(ch);
+
 	return ret;
 }
 EXPORT_SYMBOL(imx_scu_enable_general_irq_channel);
diff --git a/drivers/firmware/imx/imx-scu-soc.c b/drivers/firmware/imx/imx-scu-soc.c
index 2f32353de2c9..497192320562 100644
--- a/drivers/firmware/imx/imx-scu-soc.c
+++ b/drivers/firmware/imx/imx-scu-soc.c
@@ -78,6 +78,22 @@ static int imx_scu_soc_id(void)
 	return msg.data.resp.id;
 }
 
+static const char *imx_scu_soc_name(u32 id)
+{
+	switch (id) {
+	case 0x1:
+		return "i.MX8QM";
+	case 0x2:
+		return "i.MX8QXP";
+	case 0xe:
+		return "i.MX8DXL";
+	default:
+		break;
+	}
+
+	return "NULL";
+}
+
 int imx_scu_soc_init(struct device *dev)
 {
 	struct soc_device_attribute *soc_dev_attr;
@@ -113,9 +129,7 @@ int imx_scu_soc_init(struct device *dev)
 
 	/* format soc_id value passed from SCU firmware */
 	val = id & 0x1f;
-	soc_dev_attr->soc_id = devm_kasprintf(dev, GFP_KERNEL, "0x%x", val);
-	if (!soc_dev_attr->soc_id)
-		return -ENOMEM;
+	soc_dev_attr->soc_id = imx_scu_soc_name(val);
 
 	/* format revision value passed from SCU firmware */
 	val = (id >> 5) & 0xf;
diff --git a/drivers/firmware/imx/imx-scu.c b/drivers/firmware/imx/imx-scu.c
index 47db49911e7b..14ff9d3504bf 100644
--- a/drivers/firmware/imx/imx-scu.c
+++ b/drivers/firmware/imx/imx-scu.c
@@ -20,7 +20,7 @@
 #include <linux/platform_device.h>
 
 #define SCU_MU_CHAN_NUM		8
-#define MAX_RX_TIMEOUT		(msecs_to_jiffies(30))
+#define MAX_RX_TIMEOUT		(msecs_to_jiffies(3000))
 
 struct imx_sc_chan {
 	struct imx_sc_ipc *sc_ipc;
@@ -353,7 +353,12 @@ static struct platform_driver imx_scu_driver = {
 	},
 	.probe = imx_scu_probe,
 };
-builtin_platform_driver(imx_scu_driver);
+
+static int __init imx_scu_driver_init(void)
+{
+	return platform_driver_register(&imx_scu_driver);
+}
+subsys_initcall_sync(imx_scu_driver_init);
 
 MODULE_AUTHOR("Dong Aisheng <aisheng.dong@nxp.com>");
 MODULE_DESCRIPTION("IMX SCU firmware protocol driver");
diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c
index 798bcdb05d84..9a2656d73600 100644
--- a/drivers/firmware/meson/meson_sm.c
+++ b/drivers/firmware/meson/meson_sm.c
@@ -292,6 +292,8 @@ static int __init meson_sm_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	chip = of_match_device(meson_sm_ids, dev)->data;
+	if (!chip)
+		return -EINVAL;
 
 	if (chip->cmd_shmem_in_base) {
 		fw->sm_shmem_in_base = meson_sm_map_shmem(chip->cmd_shmem_in_base,
diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index fde33acd46b7..06fe8aca870d 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -26,10 +26,6 @@
 static bool download_mode = IS_ENABLED(CONFIG_QCOM_SCM_DOWNLOAD_MODE_DEFAULT);
 module_param(download_mode, bool, 0);
 
-#define SCM_HAS_CORE_CLK	BIT(0)
-#define SCM_HAS_IFACE_CLK	BIT(1)
-#define SCM_HAS_BUS_CLK		BIT(2)
-
 struct qcom_scm {
 	struct device *dev;
 	struct clk *core_clk;
@@ -351,7 +347,7 @@ int qcom_scm_set_warm_boot_addr(void *entry)
 		return qcom_scm_set_boot_addr(entry, qcom_scm_cpu_warm_bits);
 	return 0;
 }
-EXPORT_SYMBOL(qcom_scm_set_warm_boot_addr);
+EXPORT_SYMBOL_GPL(qcom_scm_set_warm_boot_addr);
 
 /**
  * qcom_scm_set_cold_boot_addr() - Set the cold boot address for all cpus
@@ -364,7 +360,7 @@ int qcom_scm_set_cold_boot_addr(void *entry)
 		return qcom_scm_set_boot_addr(entry, qcom_scm_cpu_cold_bits);
 	return 0;
 }
-EXPORT_SYMBOL(qcom_scm_set_cold_boot_addr);
+EXPORT_SYMBOL_GPL(qcom_scm_set_cold_boot_addr);
 
 /**
  * qcom_scm_cpu_power_down() - Power down the cpu
@@ -386,7 +382,7 @@ void qcom_scm_cpu_power_down(u32 flags)
 
 	qcom_scm_call_atomic(__scm ? __scm->dev : NULL, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_cpu_power_down);
+EXPORT_SYMBOL_GPL(qcom_scm_cpu_power_down);
 
 int qcom_scm_set_remote_state(u32 state, u32 id)
 {
@@ -405,7 +401,7 @@ int qcom_scm_set_remote_state(u32 state, u32 id)
 
 	return ret ? : res.result[0];
 }
-EXPORT_SYMBOL(qcom_scm_set_remote_state);
+EXPORT_SYMBOL_GPL(qcom_scm_set_remote_state);
 
 static int __qcom_scm_set_dload_mode(struct device *dev, bool enable)
 {
@@ -515,7 +511,7 @@ out:
 
 	return ret ? : res.result[0];
 }
-EXPORT_SYMBOL(qcom_scm_pas_init_image);
+EXPORT_SYMBOL_GPL(qcom_scm_pas_init_image);
 
 /**
  * qcom_scm_pas_metadata_release() - release metadata context
@@ -532,7 +528,7 @@ void qcom_scm_pas_metadata_release(struct qcom_scm_pas_metadata *ctx)
 	ctx->phys = 0;
 	ctx->size = 0;
 }
-EXPORT_SYMBOL(qcom_scm_pas_metadata_release);
+EXPORT_SYMBOL_GPL(qcom_scm_pas_metadata_release);
 
 /**
  * qcom_scm_pas_mem_setup() - Prepare the memory related to a given peripheral
@@ -571,7 +567,7 @@ int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr, phys_addr_t size)
 
 	return ret ? : res.result[0];
 }
-EXPORT_SYMBOL(qcom_scm_pas_mem_setup);
+EXPORT_SYMBOL_GPL(qcom_scm_pas_mem_setup);
 
 /**
  * qcom_scm_pas_auth_and_reset() - Authenticate the given peripheral firmware
@@ -606,7 +602,7 @@ int qcom_scm_pas_auth_and_reset(u32 peripheral)
 
 	return ret ? : res.result[0];
 }
-EXPORT_SYMBOL(qcom_scm_pas_auth_and_reset);
+EXPORT_SYMBOL_GPL(qcom_scm_pas_auth_and_reset);
 
 /**
  * qcom_scm_pas_shutdown() - Shut down the remote processor
@@ -641,7 +637,7 @@ int qcom_scm_pas_shutdown(u32 peripheral)
 
 	return ret ? : res.result[0];
 }
-EXPORT_SYMBOL(qcom_scm_pas_shutdown);
+EXPORT_SYMBOL_GPL(qcom_scm_pas_shutdown);
 
 /**
  * qcom_scm_pas_supported() - Check if the peripheral authentication service is
@@ -670,7 +666,7 @@ bool qcom_scm_pas_supported(u32 peripheral)
 
 	return ret ? false : !!res.result[0];
 }
-EXPORT_SYMBOL(qcom_scm_pas_supported);
+EXPORT_SYMBOL_GPL(qcom_scm_pas_supported);
 
 static int __qcom_scm_pas_mss_reset(struct device *dev, bool reset)
 {
@@ -732,7 +728,7 @@ int qcom_scm_io_readl(phys_addr_t addr, unsigned int *val)
 
 	return ret < 0 ? ret : 0;
 }
-EXPORT_SYMBOL(qcom_scm_io_readl);
+EXPORT_SYMBOL_GPL(qcom_scm_io_readl);
 
 int qcom_scm_io_writel(phys_addr_t addr, unsigned int val)
 {
@@ -747,7 +743,7 @@ int qcom_scm_io_writel(phys_addr_t addr, unsigned int val)
 
 	return qcom_scm_call_atomic(__scm->dev, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_io_writel);
+EXPORT_SYMBOL_GPL(qcom_scm_io_writel);
 
 /**
  * qcom_scm_restore_sec_cfg_available() - Check if secure environment
@@ -760,7 +756,7 @@ bool qcom_scm_restore_sec_cfg_available(void)
 	return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_MP,
 					    QCOM_SCM_MP_RESTORE_SEC_CFG);
 }
-EXPORT_SYMBOL(qcom_scm_restore_sec_cfg_available);
+EXPORT_SYMBOL_GPL(qcom_scm_restore_sec_cfg_available);
 
 int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare)
 {
@@ -779,7 +775,7 @@ int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare)
 
 	return ret ? : res.result[0];
 }
-EXPORT_SYMBOL(qcom_scm_restore_sec_cfg);
+EXPORT_SYMBOL_GPL(qcom_scm_restore_sec_cfg);
 
 int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size)
 {
@@ -800,7 +796,7 @@ int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size)
 
 	return ret ? : res.result[1];
 }
-EXPORT_SYMBOL(qcom_scm_iommu_secure_ptbl_size);
+EXPORT_SYMBOL_GPL(qcom_scm_iommu_secure_ptbl_size);
 
 int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare)
 {
@@ -824,7 +820,7 @@ int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare)
 
 	return ret;
 }
-EXPORT_SYMBOL(qcom_scm_iommu_secure_ptbl_init);
+EXPORT_SYMBOL_GPL(qcom_scm_iommu_secure_ptbl_init);
 
 int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size)
 {
@@ -839,7 +835,7 @@ int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size)
 
 	return qcom_scm_call(__scm->dev, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_iommu_set_cp_pool_size);
+EXPORT_SYMBOL_GPL(qcom_scm_iommu_set_cp_pool_size);
 
 int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
 				   u32 cp_nonpixel_start,
@@ -863,7 +859,7 @@ int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
 
 	return ret ? : res.result[0];
 }
-EXPORT_SYMBOL(qcom_scm_mem_protect_video_var);
+EXPORT_SYMBOL_GPL(qcom_scm_mem_protect_video_var);
 
 static int __qcom_scm_assign_mem(struct device *dev, phys_addr_t mem_region,
 				 size_t mem_sz, phys_addr_t src, size_t src_sz,
@@ -972,7 +968,7 @@ int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
 	*srcvm = next_vm;
 	return 0;
 }
-EXPORT_SYMBOL(qcom_scm_assign_mem);
+EXPORT_SYMBOL_GPL(qcom_scm_assign_mem);
 
 /**
  * qcom_scm_ocmem_lock_available() - is OCMEM lock/unlock interface available
@@ -982,7 +978,7 @@ bool qcom_scm_ocmem_lock_available(void)
 	return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_OCMEM,
 					    QCOM_SCM_OCMEM_LOCK_CMD);
 }
-EXPORT_SYMBOL(qcom_scm_ocmem_lock_available);
+EXPORT_SYMBOL_GPL(qcom_scm_ocmem_lock_available);
 
 /**
  * qcom_scm_ocmem_lock() - call OCMEM lock interface to assign an OCMEM
@@ -1008,7 +1004,7 @@ int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset, u32 size,
 
 	return qcom_scm_call(__scm->dev, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_ocmem_lock);
+EXPORT_SYMBOL_GPL(qcom_scm_ocmem_lock);
 
 /**
  * qcom_scm_ocmem_unlock() - call OCMEM unlock interface to release an OCMEM
@@ -1031,7 +1027,7 @@ int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id, u32 offset, u32 size)
 
 	return qcom_scm_call(__scm->dev, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_ocmem_unlock);
+EXPORT_SYMBOL_GPL(qcom_scm_ocmem_unlock);
 
 /**
  * qcom_scm_ice_available() - Is the ICE key programming interface available?
@@ -1046,7 +1042,7 @@ bool qcom_scm_ice_available(void)
 		__qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_ES,
 					     QCOM_SCM_ES_CONFIG_SET_ICE_KEY);
 }
-EXPORT_SYMBOL(qcom_scm_ice_available);
+EXPORT_SYMBOL_GPL(qcom_scm_ice_available);
 
 /**
  * qcom_scm_ice_invalidate_key() - Invalidate an inline encryption key
@@ -1072,7 +1068,7 @@ int qcom_scm_ice_invalidate_key(u32 index)
 
 	return qcom_scm_call(__scm->dev, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_ice_invalidate_key);
+EXPORT_SYMBOL_GPL(qcom_scm_ice_invalidate_key);
 
 /**
  * qcom_scm_ice_set_key() - Set an inline encryption key
@@ -1138,7 +1134,7 @@ int qcom_scm_ice_set_key(u32 index, const u8 *key, u32 key_size,
 	dma_free_coherent(__scm->dev, key_size, keybuf, key_phys);
 	return ret;
 }
-EXPORT_SYMBOL(qcom_scm_ice_set_key);
+EXPORT_SYMBOL_GPL(qcom_scm_ice_set_key);
 
 /**
  * qcom_scm_hdcp_available() - Check if secure environment supports HDCP.
@@ -1160,7 +1156,7 @@ bool qcom_scm_hdcp_available(void)
 
 	return avail;
 }
-EXPORT_SYMBOL(qcom_scm_hdcp_available);
+EXPORT_SYMBOL_GPL(qcom_scm_hdcp_available);
 
 /**
  * qcom_scm_hdcp_req() - Send HDCP request.
@@ -1207,7 +1203,7 @@ int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp)
 
 	return ret;
 }
-EXPORT_SYMBOL(qcom_scm_hdcp_req);
+EXPORT_SYMBOL_GPL(qcom_scm_hdcp_req);
 
 int qcom_scm_iommu_set_pt_format(u32 sec_id, u32 ctx_num, u32 pt_fmt)
 {
@@ -1223,7 +1219,7 @@ int qcom_scm_iommu_set_pt_format(u32 sec_id, u32 ctx_num, u32 pt_fmt)
 
 	return qcom_scm_call(__scm->dev, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_iommu_set_pt_format);
+EXPORT_SYMBOL_GPL(qcom_scm_iommu_set_pt_format);
 
 int qcom_scm_qsmmu500_wait_safe_toggle(bool en)
 {
@@ -1239,13 +1235,13 @@ int qcom_scm_qsmmu500_wait_safe_toggle(bool en)
 
 	return qcom_scm_call_atomic(__scm->dev, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_qsmmu500_wait_safe_toggle);
+EXPORT_SYMBOL_GPL(qcom_scm_qsmmu500_wait_safe_toggle);
 
 bool qcom_scm_lmh_dcvsh_available(void)
 {
 	return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_LMH, QCOM_SCM_LMH_LIMIT_DCVSH);
 }
-EXPORT_SYMBOL(qcom_scm_lmh_dcvsh_available);
+EXPORT_SYMBOL_GPL(qcom_scm_lmh_dcvsh_available);
 
 int qcom_scm_lmh_profile_change(u32 profile_id)
 {
@@ -1259,7 +1255,7 @@ int qcom_scm_lmh_profile_change(u32 profile_id)
 
 	return qcom_scm_call(__scm->dev, &desc, NULL);
 }
-EXPORT_SYMBOL(qcom_scm_lmh_profile_change);
+EXPORT_SYMBOL_GPL(qcom_scm_lmh_profile_change);
 
 int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val,
 		       u64 limit_node, u32 node_id, u64 version)
@@ -1297,7 +1293,7 @@ int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val,
 	dma_free_coherent(__scm->dev, payload_size, payload_buf, payload_phys);
 	return ret;
 }
-EXPORT_SYMBOL(qcom_scm_lmh_dcvsh);
+EXPORT_SYMBOL_GPL(qcom_scm_lmh_dcvsh);
 
 static int qcom_scm_find_dload_address(struct device *dev, u64 *addr)
 {
@@ -1332,7 +1328,7 @@ bool qcom_scm_is_available(void)
 {
 	return !!__scm;
 }
-EXPORT_SYMBOL(qcom_scm_is_available);
+EXPORT_SYMBOL_GPL(qcom_scm_is_available);
 
 static int qcom_scm_assert_valid_wq_ctx(u32 wq_ctx)
 {
@@ -1405,7 +1401,6 @@ out:
 static int qcom_scm_probe(struct platform_device *pdev)
 {
 	struct qcom_scm *scm;
-	unsigned long clks;
 	int irq, ret;
 
 	scm = devm_kzalloc(&pdev->dev, sizeof(*scm), GFP_KERNEL);
@@ -1418,51 +1413,22 @@ static int qcom_scm_probe(struct platform_device *pdev)
 
 	mutex_init(&scm->scm_bw_lock);
 
-	clks = (unsigned long)of_device_get_match_data(&pdev->dev);
-
 	scm->path = devm_of_icc_get(&pdev->dev, NULL);
 	if (IS_ERR(scm->path))
 		return dev_err_probe(&pdev->dev, PTR_ERR(scm->path),
 				     "failed to acquire interconnect path\n");
 
-	scm->core_clk = devm_clk_get(&pdev->dev, "core");
-	if (IS_ERR(scm->core_clk)) {
-		if (PTR_ERR(scm->core_clk) == -EPROBE_DEFER)
-			return PTR_ERR(scm->core_clk);
-
-		if (clks & SCM_HAS_CORE_CLK) {
-			dev_err(&pdev->dev, "failed to acquire core clk\n");
-			return PTR_ERR(scm->core_clk);
-		}
-
-		scm->core_clk = NULL;
-	}
-
-	scm->iface_clk = devm_clk_get(&pdev->dev, "iface");
-	if (IS_ERR(scm->iface_clk)) {
-		if (PTR_ERR(scm->iface_clk) == -EPROBE_DEFER)
-			return PTR_ERR(scm->iface_clk);
-
-		if (clks & SCM_HAS_IFACE_CLK) {
-			dev_err(&pdev->dev, "failed to acquire iface clk\n");
-			return PTR_ERR(scm->iface_clk);
-		}
-
-		scm->iface_clk = NULL;
-	}
+	scm->core_clk = devm_clk_get_optional(&pdev->dev, "core");
+	if (IS_ERR(scm->core_clk))
+		return PTR_ERR(scm->core_clk);
 
-	scm->bus_clk = devm_clk_get(&pdev->dev, "bus");
-	if (IS_ERR(scm->bus_clk)) {
-		if (PTR_ERR(scm->bus_clk) == -EPROBE_DEFER)
-			return PTR_ERR(scm->bus_clk);
+	scm->iface_clk = devm_clk_get_optional(&pdev->dev, "iface");
+	if (IS_ERR(scm->iface_clk))
+		return PTR_ERR(scm->iface_clk);
 
-		if (clks & SCM_HAS_BUS_CLK) {
-			dev_err(&pdev->dev, "failed to acquire bus clk\n");
-			return PTR_ERR(scm->bus_clk);
-		}
-
-		scm->bus_clk = NULL;
-	}
+	scm->bus_clk = devm_clk_get_optional(&pdev->dev, "bus");
+	if (IS_ERR(scm->bus_clk))
+		return PTR_ERR(scm->bus_clk);
 
 	scm->reset.ops = &qcom_scm_pas_reset_ops;
 	scm->reset.nr_resets = 1;
@@ -1512,39 +1478,15 @@ static void qcom_scm_shutdown(struct platform_device *pdev)
 }
 
 static const struct of_device_id qcom_scm_dt_match[] = {
-	{ .compatible = "qcom,scm-apq8064",
-	  /* FIXME: This should have .data = (void *) SCM_HAS_CORE_CLK */
-	},
-	{ .compatible = "qcom,scm-apq8084", .data = (void *)(SCM_HAS_CORE_CLK |
-							     SCM_HAS_IFACE_CLK |
-							     SCM_HAS_BUS_CLK)
-	},
+	{ .compatible = "qcom,scm" },
+
+	/* Legacy entries kept for backwards compatibility */
+	{ .compatible = "qcom,scm-apq8064" },
+	{ .compatible = "qcom,scm-apq8084" },
 	{ .compatible = "qcom,scm-ipq4019" },
-	{ .compatible = "qcom,scm-mdm9607", .data = (void *)(SCM_HAS_CORE_CLK |
-							     SCM_HAS_IFACE_CLK |
-							     SCM_HAS_BUS_CLK) },
-	{ .compatible = "qcom,scm-msm8660", .data = (void *) SCM_HAS_CORE_CLK },
-	{ .compatible = "qcom,scm-msm8960", .data = (void *) SCM_HAS_CORE_CLK },
-	{ .compatible = "qcom,scm-msm8916", .data = (void *)(SCM_HAS_CORE_CLK |
-							     SCM_HAS_IFACE_CLK |
-							     SCM_HAS_BUS_CLK)
-	},
-	{ .compatible = "qcom,scm-msm8953", .data = (void *)(SCM_HAS_CORE_CLK |
-							     SCM_HAS_IFACE_CLK |
-							     SCM_HAS_BUS_CLK)
-	},
-	{ .compatible = "qcom,scm-msm8974", .data = (void *)(SCM_HAS_CORE_CLK |
-							     SCM_HAS_IFACE_CLK |
-							     SCM_HAS_BUS_CLK)
-	},
-	{ .compatible = "qcom,scm-msm8976", .data = (void *)(SCM_HAS_CORE_CLK |
-							     SCM_HAS_IFACE_CLK |
-							     SCM_HAS_BUS_CLK)
-	},
-	{ .compatible = "qcom,scm-msm8994" },
+	{ .compatible = "qcom,scm-msm8953" },
+	{ .compatible = "qcom,scm-msm8974" },
 	{ .compatible = "qcom,scm-msm8996" },
-	{ .compatible = "qcom,scm-sm6375", .data = (void *)SCM_HAS_CORE_CLK },
-	{ .compatible = "qcom,scm" },
 	{}
 };
 MODULE_DEVICE_TABLE(of, qcom_scm_dt_match);
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 039d92a595ec..26a37f47f4ca 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -97,7 +97,6 @@ struct ti_sci_desc {
  * @node:	list head
  * @host_id:	Host ID
  * @users:	Number of users of this instance
- * @is_suspending: Flag set to indicate in suspend path.
  */
 struct ti_sci_info {
 	struct device *dev;
@@ -116,7 +115,6 @@ struct ti_sci_info {
 	u8 host_id;
 	/* protected by ti_sci_list_mutex */
 	int users;
-	bool is_suspending;
 };
 
 #define cl_to_ti_sci_info(c)	container_of(c, struct ti_sci_info, cl)
@@ -418,14 +416,14 @@ static inline int ti_sci_do_xfer(struct ti_sci_info *info,
 
 	ret = 0;
 
-	if (!info->is_suspending) {
+	if (system_state <= SYSTEM_RUNNING) {
 		/* And we wait for the response. */
 		timeout = msecs_to_jiffies(info->desc->max_rx_timeout_ms);
 		if (!wait_for_completion_timeout(&xfer->done, timeout))
 			ret = -ETIMEDOUT;
 	} else {
 		/*
-		 * If we are suspending, we cannot use wait_for_completion_timeout
+		 * If we are !running, we cannot use wait_for_completion_timeout
 		 * during noirq phase, so we must manually poll the completion.
 		 */
 		ret = read_poll_timeout_atomic(try_wait_for_completion, done_state,
@@ -1978,8 +1976,6 @@ static int ti_sci_free_irq(const struct ti_sci_handle *handle, u32 valid_params,
  * @src_index:		IRQ source index within the source device
  * @dst_id:		Device ID of the IRQ destination
  * @dst_host_irq:	IRQ number of the destination device
- * @vint_irq:		Boolean specifying if this interrupt belongs to
- *			Interrupt Aggregator.
  *
  * Return: 0 if all went fine, else return appropriate error.
  */
@@ -2026,8 +2022,6 @@ static int ti_sci_cmd_set_event_map(const struct ti_sci_handle *handle,
  * @src_index:		IRQ source index within the source device
  * @dst_id:		Device ID of the IRQ destination
  * @dst_host_irq:	IRQ number of the destination device
- * @vint_irq:		Boolean specifying if this interrupt belongs to
- *			Interrupt Aggregator.
  *
  * Return: 0 if all went fine, else return appropriate error.
  */
@@ -2620,6 +2614,7 @@ fail:
  *				    configuration flags
  * @handle:		Pointer to TI SCI handle
  * @proc_id:		Processor ID this request is for
+ * @bootvector:		Processor Boot vector (start address)
  * @config_flags_set:	Configuration flags to be set
  * @config_flags_clear:	Configuration flags to be cleared.
  *
@@ -2736,9 +2731,13 @@ fail:
 }
 
 /**
- * ti_sci_cmd_get_boot_status() - Command to get the processor boot status
+ * ti_sci_cmd_proc_get_status() - Command to get the processor boot status
  * @handle:	Pointer to TI SCI handle
  * @proc_id:	Processor ID this request is for
+ * @bv:		Processor Boot vector (start address)
+ * @cfg_flags:	Processor specific configuration flags
+ * @ctrl_flags:	Processor specific control flags
+ * @sts_flags:	Processor specific status flags
  *
  * Return: 0 if all went well, else returns appropriate error value.
  */
@@ -3256,7 +3255,7 @@ EXPORT_SYMBOL_GPL(devm_ti_sci_get_of_resource);
  * @handle:	TISCI handle
  * @dev:	Device pointer to which the resource is assigned
  * @dev_id:	TISCI device id to which the resource is assigned
- * @suub_type:	TISCI resource subytpe representing the resource.
+ * @sub_type:	TISCI resource subytpe representing the resource.
  *
  * Return: Pointer to ti_sci_resource if all went well else appropriate
  *	   error pointer.
@@ -3281,35 +3280,6 @@ static int tisci_reboot_handler(struct notifier_block *nb, unsigned long mode,
 	return NOTIFY_BAD;
 }
 
-static void ti_sci_set_is_suspending(struct ti_sci_info *info, bool is_suspending)
-{
-	info->is_suspending = is_suspending;
-}
-
-static int ti_sci_suspend(struct device *dev)
-{
-	struct ti_sci_info *info = dev_get_drvdata(dev);
-	/*
-	 * We must switch operation to polled mode now as drivers and the genpd
-	 * layer may make late TI SCI calls to change clock and device states
-	 * from the noirq phase of suspend.
-	 */
-	ti_sci_set_is_suspending(info, true);
-
-	return 0;
-}
-
-static int ti_sci_resume(struct device *dev)
-{
-	struct ti_sci_info *info = dev_get_drvdata(dev);
-
-	ti_sci_set_is_suspending(info, false);
-
-	return 0;
-}
-
-static DEFINE_SIMPLE_DEV_PM_OPS(ti_sci_pm_ops, ti_sci_suspend, ti_sci_resume);
-
 /* Description for K2G */
 static const struct ti_sci_desc ti_sci_pmmc_k2g_desc = {
 	.default_host_id = 2,
@@ -3516,7 +3486,6 @@ static struct platform_driver ti_sci_driver = {
 	.driver = {
 		   .name = "ti-sci",
 		   .of_match_table = of_match_ptr(ti_sci_of_match),
-		   .pm = &ti_sci_pm_ops,
 	},
 };
 module_platform_driver(ti_sci_driver);