Merge branch 'for-6.15/amd_sfh' into for-linus

From: Mario Limonciello <mario.limonciello@amd.com>

Some platforms include a human presence detection (HPD) sensor. When
enabled and a user is detected a wake event will be emitted from the
sensor fusion hub that software can react to.

Example use cases are "wake from suspend on approach" or to "lock
when leaving".

This is currently enabled by default on supported systems, but users
can't control it. This essentially means that wake on approach is
enabled which is a really surprising behavior to users that don't
expect it.

Instead of defaulting to enabled add a sysfs knob that users can
use to enable the feature if desirable and set it to disabled by
default.

1 files changed, 14 insertions, 3 deletions

diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index c13342594278..17276965ff1d 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -172,6 +172,9 @@ struct coresight_desc {
  * @dest_dev:	a @coresight_device representation of the component
 		connected to @src_port. NULL until the device is created
  * @link: Representation of the connection as a sysfs link.
+ * @filter_src_fwnode: filter source component's fwnode handle.
+ * @filter_src_dev: a @coresight_device representation of the component that
+		needs to be filtered.
  *
  * The full connection structure looks like this, where in_conns store
  * references to same connection as the source device's out_conns.
@@ -200,8 +203,10 @@ struct coresight_connection {
 	struct coresight_device *dest_dev;
 	struct coresight_sysfs_link *link;
 	struct coresight_device *src_dev;
-	atomic_t src_refcnt;
-	atomic_t dest_refcnt;
+	struct fwnode_handle *filter_src_fwnode;
+	struct coresight_device *filter_src_dev;
+	int src_refcnt;
+	int dest_refcnt;
 };
 
 /**
@@ -588,9 +593,14 @@ static inline void csdev_access_write64(struct csdev_access *csa, u64 val, u32 o
 }
 #endif	/* CONFIG_64BIT */
 
+static inline bool coresight_is_device_source(struct coresight_device *csdev)
+{
+	return csdev && (csdev->type == CORESIGHT_DEV_TYPE_SOURCE);
+}
+
 static inline bool coresight_is_percpu_source(struct coresight_device *csdev)
 {
-	return csdev && (csdev->type == CORESIGHT_DEV_TYPE_SOURCE) &&
+	return csdev && coresight_is_device_source(csdev) &&
 	       (csdev->subtype.source_subtype == CORESIGHT_DEV_SUBTYPE_SOURCE_PROC);
 }
 
@@ -662,6 +672,7 @@ void coresight_relaxed_write64(struct coresight_device *csdev,
 void coresight_write64(struct coresight_device *csdev, u64 val, u32 offset);
 
 extern int coresight_get_cpu(struct device *dev);
+extern int coresight_get_static_trace_id(struct device *dev, u32 *id);
 
 struct coresight_platform_data *coresight_get_platform_data(struct device *dev);
 struct coresight_connection *