Merge tag 'scmi-updates-6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers

Arm SCMI updates for v6.17

1. A fix is introduced to correct turbo frequency marking for 64-bit
   devices with sustained frequencies over 4GHz, ensuring accurate turbo
   frequency identification.

2. Debug capabilities are being improved by introducing in-flight transfer
   tracking using debug counters, which help diagnose transfer congestion
   and behavior. Additional tracepoints are added to log in-flight counts
   at transfer begin and end, offering better runtime insight. The debug
   counters now support decrement operations using a newly added
   scmi_dec_count helper, making counter tracking symmetric and more robust.

3. A race condition in suspend-resume logic is being resolved by ensuring
   SCMI_SYSPOWER_IDLE state is set early during resume, improving suspend
   reliability under certain conditions. New suspend and resume operations
   are added to the scmi_bus_type to enable finer power management control
   for SCMI-based devices.

4. Finally enhancements are also made to avoid registering notifiers for
   events that a platform does not support, reducing unnecessary overhead
   by checking for unsupported event types during protocolinitialization.

* tag 'scmi-updates-6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: Convert to SYSTEM_SLEEP_PM_OPS
  firmware: arm_scmi: Avoid notifier registration for unsupported events
  firmware: arm_scmi: power_control: Ensure SCMI_SYSPOWER_IDLE is set early during resume
  firmware: arm_scmi: Add power management operations to SCMI bus
  include: trace:  Add tracepoint support for inflight xfer count
  firmware: arm_scmi: Track number of inflight SCMI transfers
  firmware: arm_scmi: Add support for debug counter decrement
  firmware: arm_scmi: Fix up turbo frequencies selection

Link: https://lore.kernel.org/r/20250709122907.1171913-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 14 insertions, 10 deletions

diff --git a/include/trace/events/scmi.h b/include/trace/events/scmi.h
index 127300481123..703b7bb68e44 100644
--- a/include/trace/events/scmi.h
+++ b/include/trace/events/scmi.h
@@ -36,8 +36,8 @@ TRACE_EVENT(scmi_fc_call,
 
 TRACE_EVENT(scmi_xfer_begin,
 	TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,
-		 bool poll),
-	TP_ARGS(transfer_id, msg_id, protocol_id, seq, poll),
+		 bool poll, int inflight),
+	TP_ARGS(transfer_id, msg_id, protocol_id, seq, poll, inflight),
 
 	TP_STRUCT__entry(
 		__field(int, transfer_id)
@@ -45,6 +45,7 @@ TRACE_EVENT(scmi_xfer_begin,
 		__field(u8, protocol_id)
 		__field(u16, seq)
 		__field(bool, poll)
+		__field(int, inflight)
 	),
 
 	TP_fast_assign(
@@ -53,11 +54,12 @@ TRACE_EVENT(scmi_xfer_begin,
 		__entry->protocol_id = protocol_id;
 		__entry->seq = seq;
 		__entry->poll = poll;
+		__entry->inflight = inflight;
 	),
 
-	TP_printk("pt=%02X msg_id=%02X seq=%04X transfer_id=%X poll=%u",
-		__entry->protocol_id, __entry->msg_id, __entry->seq,
-		__entry->transfer_id, __entry->poll)
+	TP_printk("pt=%02X msg_id=%02X seq=%04X transfer_id=%X poll=%u inflight=%d",
+		  __entry->protocol_id, __entry->msg_id, __entry->seq,
+		  __entry->transfer_id, __entry->poll, __entry->inflight)
 );
 
 TRACE_EVENT(scmi_xfer_response_wait,
@@ -90,8 +92,8 @@ TRACE_EVENT(scmi_xfer_response_wait,
 
 TRACE_EVENT(scmi_xfer_end,
 	TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,
-		 int status),
-	TP_ARGS(transfer_id, msg_id, protocol_id, seq, status),
+		 int status, int inflight),
+	TP_ARGS(transfer_id, msg_id, protocol_id, seq, status, inflight),
 
 	TP_STRUCT__entry(
 		__field(int, transfer_id)
@@ -99,6 +101,7 @@ TRACE_EVENT(scmi_xfer_end,
 		__field(u8, protocol_id)
 		__field(u16, seq)
 		__field(int, status)
+		__field(int, inflight)
 	),
 
 	TP_fast_assign(
@@ -107,11 +110,12 @@ TRACE_EVENT(scmi_xfer_end,
 		__entry->protocol_id = protocol_id;
 		__entry->seq = seq;
 		__entry->status = status;
+		__entry->inflight = inflight;
 	),
 
-	TP_printk("pt=%02X msg_id=%02X seq=%04X transfer_id=%X s=%d",
-		__entry->protocol_id, __entry->msg_id, __entry->seq,
-		__entry->transfer_id, __entry->status)
+	TP_printk("pt=%02X msg_id=%02X seq=%04X transfer_id=%X s=%d inflight=%d",
+		  __entry->protocol_id, __entry->msg_id, __entry->seq,
+		  __entry->transfer_id, __entry->status, __entry->inflight)
 );
 
 TRACE_EVENT(scmi_rx_done,