Merge tag 'char-misc-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull Char/Misc updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem updates
  for 6.5-rc1.

  Lots of different, tiny, stuff in here, from a range of smaller driver
  subsystems, including pulls from some substems directly:

   - IIO driver updates and additions

   - W1 driver updates and fixes (and a new maintainer!)

   - FPGA driver updates and fixes

   - Counter driver updates

   - Extcon driver updates

   - Interconnect driver updates

   - Coresight driver updates

   - mfd tree tag merge needed for other updates on top of that, lots of
     small driver updates as patches, including:

   - static const updates for class structures

   - nvmem driver updates

   - pcmcia driver fix

   - lots of other small driver updates and fixes

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'char-misc-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (243 commits)
  bsr: fix build problem with bsr_class static cleanup
  comedi: make all 'class' structures const
  char: xillybus: make xillybus_class a static const structure
  xilinx_hwicap: make icap_class a static const structure
  virtio_console: make port class a static const structure
  ppdev: make ppdev_class a static const structure
  char: misc: make misc_class a static const structure
  /dev/mem: make mem_class a static const structure
  char: lp: make lp_class a static const structure
  dsp56k: make dsp56k_class a static const structure
  bsr: make bsr_class a static const structure
  oradax: make 'cl' a static const structure
  hwtracing: hisi_ptt: Fix potential sleep in atomic context
  hwtracing: hisi_ptt: Advertise PERF_PMU_CAP_NO_EXCLUDE for PTT PMU
  hwtracing: hisi_ptt: Export available filters through sysfs
  hwtracing: hisi_ptt: Add support for dynamically updating the filter list
  hwtracing: hisi_ptt: Factor out filter allocation and release operation
  samples: pfsm: add CC_CAN_LINK dependency
  misc: fastrpc: check return value of devm_kasprintf()
  coresight: dummy: Update type of mode parameter in dummy_{sink,source}_enable()
  ...

13 files changed, 143 insertions, 63 deletions

diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index 5001e14c5c06..c60a6a14638c 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -107,7 +107,7 @@ enum amba_vendor {
 
 extern struct bus_type amba_bustype;
 
-#define to_amba_device(d)	container_of(d, struct amba_device, dev)
+#define to_amba_device(d)	container_of_const(d, struct amba_device, dev)
 
 #define amba_get_drvdata(d)	dev_get_drvdata(&d->dev)
 #define amba_set_drvdata(d,p)	dev_set_drvdata(&d->dev, p)
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index f19a47b9bb5a..bf70987240e4 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -41,10 +41,11 @@ enum coresight_dev_type {
 	CORESIGHT_DEV_TYPE_LINKSINK,
 	CORESIGHT_DEV_TYPE_SOURCE,
 	CORESIGHT_DEV_TYPE_HELPER,
-	CORESIGHT_DEV_TYPE_ECT,
+	CORESIGHT_DEV_TYPE_MAX
 };
 
 enum coresight_dev_subtype_sink {
+	CORESIGHT_DEV_SUBTYPE_SINK_DUMMY,
 	CORESIGHT_DEV_SUBTYPE_SINK_PORT,
 	CORESIGHT_DEV_SUBTYPE_SINK_BUFFER,
 	CORESIGHT_DEV_SUBTYPE_SINK_SYSMEM,
@@ -66,12 +67,7 @@ enum coresight_dev_subtype_source {
 
 enum coresight_dev_subtype_helper {
 	CORESIGHT_DEV_SUBTYPE_HELPER_CATU,
-};
-
-/* Embedded Cross Trigger (ECT) sub-types */
-enum coresight_dev_subtype_ect {
-	CORESIGHT_DEV_SUBTYPE_ECT_NONE,
-	CORESIGHT_DEV_SUBTYPE_ECT_CTI,
+	CORESIGHT_DEV_SUBTYPE_HELPER_ECT_CTI
 };
 
 /**
@@ -84,8 +80,6 @@ enum coresight_dev_subtype_ect {
  *			by @coresight_dev_subtype_source.
  * @helper_subtype:	type of helper this component is, as defined
  *			by @coresight_dev_subtype_helper.
- * @ect_subtype:        type of cross trigger this component is, as
- *			defined by @coresight_dev_subtype_ect
  */
 union coresight_dev_subtype {
 	/* We have some devices which acts as LINK and SINK */
@@ -95,21 +89,25 @@ union coresight_dev_subtype {
 	};
 	enum coresight_dev_subtype_source source_subtype;
 	enum coresight_dev_subtype_helper helper_subtype;
-	enum coresight_dev_subtype_ect ect_subtype;
 };
 
 /**
  * struct coresight_platform_data - data harvested from the firmware
  * specification.
  *
- * @nr_inport:	Number of elements for the input connections.
- * @nr_outport:	Number of elements for the output connections.
- * @conns:	Sparse array of nr_outport connections from this component.
+ * @nr_inconns: Number of elements for the input connections.
+ * @nr_outconns: Number of elements for the output connections.
+ * @out_conns: Array of nr_outconns pointers to connections from this
+ *	       component.
+ * @in_conns: Sparse array of pointers to input connections. Sparse
+ *            because the source device owns the connection so when it's
+ *            unloaded the connection leaves an empty slot.
  */
 struct coresight_platform_data {
-	int nr_inport;
-	int nr_outport;
-	struct coresight_connection *conns;
+	int nr_inconns;
+	int nr_outconns;
+	struct coresight_connection **out_conns;
+	struct coresight_connection **in_conns;
 };
 
 /**
@@ -164,19 +162,42 @@ struct coresight_desc {
 
 /**
  * struct coresight_connection - representation of a single connection
- * @outport:	a connection's output port number.
- * @child_port:	remote component's port number @output is connected to.
- * @chid_fwnode: remote component's fwnode handle.
- * @child_dev:	a @coresight_device representation of the component
-		connected to @outport.
+ * @src_port:	a connection's output port number.
+ * @dest_port:	destination's input port number @src_port is connected to.
+ * @dest_fwnode: destination component's fwnode handle.
+ * @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.
+ *
+ * The full connection structure looks like this, where in_conns store
+ * references to same connection as the source device's out_conns.
+ *
+ * +-----------------------------+   +-----------------------------+
+ * |coresight_device             |   |coresight_connection         |
+ * |-----------------------------|   |-----------------------------|
+ * |                             |   |                             |
+ * |                             |   |                    dest_dev*|<--
+ * |pdata->out_conns[nr_outconns]|<->|src_dev*                     |   |
+ * |                             |   |                             |   |
+ * +-----------------------------+   +-----------------------------+   |
+ *                                                                     |
+ *                                   +-----------------------------+   |
+ *                                   |coresight_device             |   |
+ *                                   |------------------------------   |
+ *                                   |                             |   |
+ *                                   |  pdata->in_conns[nr_inconns]|<--
+ *                                   |                             |
+ *                                   +-----------------------------+
  */
 struct coresight_connection {
-	int outport;
-	int child_port;
-	struct fwnode_handle *child_fwnode;
-	struct coresight_device *child_dev;
+	int src_port;
+	int dest_port;
+	struct fwnode_handle *dest_fwnode;
+	struct coresight_device *dest_dev;
 	struct coresight_sysfs_link *link;
+	struct coresight_device *src_dev;
+	atomic_t src_refcnt;
+	atomic_t dest_refcnt;
 };
 
 /**
@@ -211,8 +232,6 @@ struct coresight_sysfs_link {
  *		from source to that sink.
  * @ea:		Device attribute for sink representation under PMU directory.
  * @def_sink:	cached reference to default sink found for this device.
- * @ect_dev:	Associated cross trigger device. Not part of the trace data
- *		path or connections.
  * @nr_links:   number of sysfs links created to other components from this
  *		device. These will appear in the "connections" group.
  * @has_conns_grp: Have added a "connections" group for sysfs links.
@@ -228,19 +247,16 @@ struct coresight_device {
 	const struct coresight_ops *ops;
 	struct csdev_access access;
 	struct device dev;
-	atomic_t *refcnt;
+	atomic_t refcnt;
 	bool orphan;
 	bool enable;	/* true only if configured as part of a path */
 	/* sink specific fields */
 	bool activated;	/* true only if a sink is part of a path */
 	struct dev_ext_attribute *ea;
 	struct coresight_device *def_sink;
-	/* cross trigger handling */
-	struct coresight_device *ect_dev;
 	/* sysfs links between components */
 	int nr_links;
 	bool has_conns_grp;
-	bool ect_enabled; /* true only if associated ect device is enabled */
 	/* system configuration and feature lists */
 	struct list_head feature_csdev_list;
 	struct list_head config_csdev_list;
@@ -272,6 +288,12 @@ static struct coresight_dev_list (var) = {				\
 
 #define to_coresight_device(d) container_of(d, struct coresight_device, dev)
 
+enum cs_mode {
+	CS_MODE_DISABLED,
+	CS_MODE_SYSFS,
+	CS_MODE_PERF,
+};
+
 #define source_ops(csdev)	csdev->ops->source_ops
 #define sink_ops(csdev)		csdev->ops->sink_ops
 #define link_ops(csdev)		csdev->ops->link_ops
@@ -288,7 +310,8 @@ static struct coresight_dev_list (var) = {				\
  * @update_buffer:	update buffer pointers after a trace session.
  */
 struct coresight_ops_sink {
-	int (*enable)(struct coresight_device *csdev, u32 mode, void *data);
+	int (*enable)(struct coresight_device *csdev, enum cs_mode mode,
+		      void *data);
 	int (*disable)(struct coresight_device *csdev);
 	void *(*alloc_buffer)(struct coresight_device *csdev,
 			      struct perf_event *event, void **pages,
@@ -306,8 +329,12 @@ struct coresight_ops_sink {
  * @disable:	disables flow between iport and oport.
  */
 struct coresight_ops_link {
-	int (*enable)(struct coresight_device *csdev, int iport, int oport);
-	void (*disable)(struct coresight_device *csdev, int iport, int oport);
+	int (*enable)(struct coresight_device *csdev,
+		      struct coresight_connection *in,
+		      struct coresight_connection *out);
+	void (*disable)(struct coresight_device *csdev,
+			struct coresight_connection *in,
+			struct coresight_connection *out);
 };
 
 /**
@@ -320,8 +347,8 @@ struct coresight_ops_link {
  */
 struct coresight_ops_source {
 	int (*cpu_id)(struct coresight_device *csdev);
-	int (*enable)(struct coresight_device *csdev,
-		      struct perf_event *event,  u32 mode);
+	int (*enable)(struct coresight_device *csdev, struct perf_event *event,
+		      enum cs_mode mode);
 	void (*disable)(struct coresight_device *csdev,
 			struct perf_event *event);
 };
@@ -336,27 +363,16 @@ struct coresight_ops_source {
  * @disable	: Disable the device
  */
 struct coresight_ops_helper {
-	int (*enable)(struct coresight_device *csdev, void *data);
+	int (*enable)(struct coresight_device *csdev, enum cs_mode mode,
+		      void *data);
 	int (*disable)(struct coresight_device *csdev, void *data);
 };
 
-/**
- * struct coresight_ops_ect - Ops for an embedded cross trigger device
- *
- * @enable	: Enable the device
- * @disable	: Disable the device
- */
-struct coresight_ops_ect {
-	int (*enable)(struct coresight_device *csdev);
-	int (*disable)(struct coresight_device *csdev);
-};
-
 struct coresight_ops {
 	const struct coresight_ops_sink *sink_ops;
 	const struct coresight_ops_link *link_ops;
 	const struct coresight_ops_source *source_ops;
 	const struct coresight_ops_helper *helper_ops;
-	const struct coresight_ops_ect *ect_ops;
 };
 
 #if IS_ENABLED(CONFIG_CORESIGHT)
@@ -602,5 +618,18 @@ static inline void coresight_write64(struct coresight_device *csdev, u64 val, u3
 extern int coresight_get_cpu(struct device *dev);
 
 struct coresight_platform_data *coresight_get_platform_data(struct device *dev);
+struct coresight_connection *
+coresight_add_out_conn(struct device *dev,
+		       struct coresight_platform_data *pdata,
+		       const struct coresight_connection *new_conn);
+int coresight_add_in_conn(struct coresight_connection *conn);
+struct coresight_device *
+coresight_find_input_type(struct coresight_platform_data *pdata,
+			  enum coresight_dev_type type,
+			  union coresight_dev_subtype subtype);
+struct coresight_device *
+coresight_find_output_type(struct coresight_platform_data *pdata,
+			   enum coresight_dev_type type,
+			   union coresight_dev_subtype subtype);
 
 #endif		/* _LINUX_COREISGHT_H */
diff --git a/include/linux/device.h b/include/linux/device.h
index 472dd24d4823..58f4f5948edb 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -223,6 +223,17 @@ static inline void *devm_kcalloc(struct device *dev,
 {
 	return devm_kmalloc_array(dev, n, size, flags | __GFP_ZERO);
 }
+static inline __realloc_size(3, 4) void * __must_check
+devm_krealloc_array(struct device *dev, void *p, size_t new_n, size_t new_size, gfp_t flags)
+{
+	size_t bytes;
+
+	if (unlikely(check_mul_overflow(new_n, new_size, &bytes)))
+		return NULL;
+
+	return devm_krealloc(dev, p, bytes, flags);
+}
+
 void devm_kfree(struct device *dev, const void *p);
 char *devm_kstrdup(struct device *dev, const char *s, gfp_t gfp) __malloc;
 const char *devm_kstrdup_const(struct device *dev, const char *s, gfp_t gfp);
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index f5da51677069..9dda7d9898ff 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -4,7 +4,7 @@
  *
  *  Copyright (C) 2014-2021 Xilinx
  *
- *  Michal Simek <michal.simek@xilinx.com>
+ *  Michal Simek <michal.simek@amd.com>
  *  Davorin Mista <davorin.mista@aggios.com>
  *  Jolly Shah <jollys@xilinx.com>
  *  Rajan Vaja <rajanv@xilinx.com>
diff --git a/include/linux/i8254.h b/include/linux/i8254.h
new file mode 100644
index 000000000000..a675c309232b
--- /dev/null
+++ b/include/linux/i8254.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) William Breathitt Gray */
+#ifndef _I8254_H_
+#define _I8254_H_
+
+struct device;
+struct regmap;
+
+/**
+ * struct i8254_regmap_config - Configuration for the register map of an i8254
+ * @parent:	parent device
+ * @map:	regmap for the i8254
+ */
+struct i8254_regmap_config {
+	struct device *parent;
+	struct regmap *map;
+};
+
+int devm_i8254_regmap_register(struct device *dev, const struct i8254_regmap_config *config);
+
+#endif /* _I8254_H_ */
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index f5f3ee57bc70..607c3a89a647 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -22,6 +22,7 @@
 #include <linux/platform_data/st_sensors_pdata.h>
 
 #define LSM9DS0_IMU_DEV_NAME		"lsm9ds0"
+#define LSM303D_IMU_DEV_NAME		"lsm303d"
 
 /*
  * Buffer size max case: 2bytes per channel, 3 channels in total +
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index d28a5e8097e4..202e55b0a28b 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -221,6 +221,9 @@ struct iio_event_spec {
  * @extend_name:	Allows labeling of channel attributes with an
  *			informative name. Note this has no effect codes etc,
  *			unlike modifiers.
+ *			This field is deprecated in favour of providing
+ *			iio_info->read_label() to override the label, which
+ *			unlike @extend_name does not affect sysfs filenames.
  * @datasheet_name:	A name used in in-kernel mapping of channels. It should
  *			correspond to the first name that the channel is referred
  *			to by in the datasheet (e.g. IND), or the nearest
diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
index 51f52c5c6092..bce3b1788199 100644
--- a/include/linux/iio/trigger.h
+++ b/include/linux/iio/trigger.h
@@ -171,6 +171,7 @@ void iio_trigger_free(struct iio_trigger *trig);
  */
 bool iio_trigger_using_own(struct iio_dev *indio_dev);
 
+int iio_validate_own_trigger(struct iio_dev *idev, struct iio_trigger *trig);
 int iio_trigger_validate_own_device(struct iio_trigger *trig,
 				     struct iio_dev *indio_dev);
 
diff --git a/include/linux/interconnect-clk.h b/include/linux/interconnect-clk.h
new file mode 100644
index 000000000000..0cd80112bea5
--- /dev/null
+++ b/include/linux/interconnect-clk.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023, Linaro Ltd.
+ */
+
+#ifndef __LINUX_INTERCONNECT_CLK_H
+#define __LINUX_INTERCONNECT_CLK_H
+
+struct device;
+
+struct icc_clk_data {
+	struct clk *clk;
+	const char *name;
+};
+
+struct icc_provider *icc_clk_register(struct device *dev,
+				      unsigned int first_id,
+				      unsigned int num_clocks,
+				      const struct icc_clk_data *data);
+void icc_clk_unregister(struct icc_provider *provider);
+
+#endif
diff --git a/include/linux/interconnect.h b/include/linux/interconnect.h
index 2b0e784ba771..97ac253df62c 100644
--- a/include/linux/interconnect.h
+++ b/include/linux/interconnect.h
@@ -40,8 +40,6 @@ struct icc_bulk_data {
 
 #if IS_ENABLED(CONFIG_INTERCONNECT)
 
-struct icc_path *icc_get(struct device *dev, const int src_id,
-			 const int dst_id);
 struct icc_path *of_icc_get(struct device *dev, const char *name);
 struct icc_path *devm_of_icc_get(struct device *dev, const char *name);
 int devm_of_icc_bulk_get(struct device *dev, int num_paths, struct icc_bulk_data *paths);
@@ -61,12 +59,6 @@ void icc_bulk_disable(int num_paths, const struct icc_bulk_data *paths);
 
 #else
 
-static inline struct icc_path *icc_get(struct device *dev, const int src_id,
-				       const int dst_id)
-{
-	return NULL;
-}
-
 static inline struct icc_path *of_icc_get(struct device *dev,
 					  const char *name)
 {
diff --git a/include/linux/parport.h b/include/linux/parport.h
index 243c82d7f852..999eddd619b7 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -516,7 +516,7 @@ extern int parport_device_proc_register(struct pardevice *device);
 extern int parport_device_proc_unregister(struct pardevice *device);
 
 /* If PC hardware is the only type supported, we can optimise a bit.  */
-#if !defined(CONFIG_PARPORT_NOT_PC)
+#if !defined(CONFIG_PARPORT_NOT_PC) && defined(CONFIG_PARPORT_PC)
 
 #include <linux/parport_pc.h>
 #define parport_write_data(p,x)            parport_pc_write_data(p,x)
diff --git a/include/linux/platform_data/st_sensors_pdata.h b/include/linux/platform_data/st_sensors_pdata.h
index 897051e51b78..a657830232ae 100644
--- a/include/linux/platform_data/st_sensors_pdata.h
+++ b/include/linux/platform_data/st_sensors_pdata.h
@@ -15,7 +15,7 @@
  * @drdy_int_pin: Redirect DRDY on pin 1 (1) or pin 2 (2).
  *	Available only for accelerometer, magnetometer and pressure sensors.
  *	Accelerometer DRDY on LSM330 available only on pin 1 (see datasheet).
- *	Magnetometer DRDY is supported only on LSM9DS0.
+ *	Magnetometer DRDY is supported only on LSM9DS0 and LSM303D.
  * @open_drain: set the interrupt line to be open drain if possible.
  * @spi_3wire: enable spi-3wire mode.
  * @pullups: enable/disable i2c controller pullup resistors.
diff --git a/include/linux/uacce.h b/include/linux/uacce.h
index 0a81c3dfd26c..e290c0269944 100644
--- a/include/linux/uacce.h
+++ b/include/linux/uacce.h
@@ -86,6 +86,7 @@ enum uacce_q_state {
  * @state: queue state machine
  * @pasid: pasid associated to the mm
  * @handle: iommu_sva handle returned by iommu_sva_bind_device()
+ * @mapping: user space mapping of the queue
  */
 struct uacce_queue {
 	struct uacce_device *uacce;
@@ -97,6 +98,7 @@ struct uacce_queue {
 	enum uacce_q_state state;
 	u32 pasid;
 	struct iommu_sva *handle;
+	struct address_space *mapping;
 };
 
 /**
@@ -114,7 +116,6 @@ struct uacce_queue {
  * @mutex: protects uacce operation
  * @priv: private pointer of the uacce
  * @queues: list of queues
- * @inode: core vfs
  */
 struct uacce_device {
 	const char *algs;
@@ -130,7 +131,6 @@ struct uacce_device {
 	struct mutex mutex;
 	void *priv;
 	struct list_head queues;
-	struct inode *inode;
 };
 
 #if IS_ENABLED(CONFIG_UACCE)