Merge tag 'char-misc-6.7-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 small driver subsystem
  changes for 6.7-rc1. Included in here are:

   - IIO subsystem driver updates and additions (largest part of this
     pull request)

   - FPGA subsystem driver updates

   - Counter subsystem driver updates

   - ICC subsystem driver updates

   - extcon subsystem driver updates

   - mei driver updates and additions

   - nvmem subsystem driver updates and additions

   - comedi subsystem dependency fixes

   - parport driver fixups

   - cdx subsystem driver and core updates

   - splice support for /dev/zero and /dev/full

   - other smaller driver cleanups

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

* tag 'char-misc-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (326 commits)
  cdx: add sysfs for subsystem, class and revision
  cdx: add sysfs for bus reset
  cdx: add support for bus enable and disable
  cdx: Register cdx bus as a device on cdx subsystem
  cdx: Create symbol namespaces for cdx subsystem
  cdx: Introduce lock to protect controller ops
  cdx: Remove cdx controller list from cdx bus system
  dts: ti: k3-am625-beagleplay: Add beaglecc1352
  greybus: Add BeaglePlay Linux Driver
  dt-bindings: net: Add ti,cc1352p7
  dt-bindings: eeprom: at24: allow NVMEM cells based on old syntax
  dt-bindings: nvmem: SID: allow NVMEM cells based on old syntax
  Revert "nvmem: add new config option"
  MAINTAINERS: coresight: Add missing Coresight files
  misc: pci_endpoint_test: Add deviceID for J721S2 PCIe EP device support
  firmware: xilinx: Move EXPORT_SYMBOL_GPL next to zynqmp_pm_feature definition
  uacce: make uacce_class constant
  ocxl: make ocxl_class constant
  cxl: make cxl_class constant
  misc: phantom: make phantom_class constant
  ...

12 files changed, 134 insertions, 34 deletions

diff --git a/include/linux/cdx/cdx_bus.h b/include/linux/cdx/cdx_bus.h
index 8320ec3b9e37..94ad2c9017c9 100644
--- a/include/linux/cdx/cdx_bus.h
+++ b/include/linux/cdx/cdx_bus.h
@@ -30,6 +30,10 @@ struct cdx_device_config {
 	bool bus_master_enable;
 };
 
+typedef int (*cdx_bus_enable_cb)(struct cdx_controller *cdx, u8 bus_num);
+
+typedef int (*cdx_bus_disable_cb)(struct cdx_controller *cdx, u8 bus_num);
+
 typedef int (*cdx_scan_cb)(struct cdx_controller *cdx);
 
 typedef int (*cdx_dev_configure_cb)(struct cdx_controller *cdx,
@@ -37,6 +41,19 @@ typedef int (*cdx_dev_configure_cb)(struct cdx_controller *cdx,
 				    struct cdx_device_config *dev_config);
 
 /**
+ * CDX_DEVICE - macro used to describe a specific CDX device
+ * @vend: the 16 bit CDX Vendor ID
+ * @dev: the 16 bit CDX Device ID
+ *
+ * This macro is used to create a struct cdx_device_id that matches a
+ * specific device. The subvendor and subdevice fields will be set to
+ * CDX_ANY_ID.
+ */
+#define CDX_DEVICE(vend, dev) \
+	.vendor = (vend), .device = (dev), \
+	.subvendor = CDX_ANY_ID, .subdevice = CDX_ANY_ID
+
+/**
  * CDX_DEVICE_DRIVER_OVERRIDE - macro used to describe a CDX device with
  *                              override_only flags.
  * @vend: the 16 bit CDX Vendor ID
@@ -44,18 +61,24 @@ typedef int (*cdx_dev_configure_cb)(struct cdx_controller *cdx,
  * @driver_override: the 32 bit CDX Device override_only
  *
  * This macro is used to create a struct cdx_device_id that matches only a
- * driver_override device.
+ * driver_override device. The subvendor and subdevice fields will be set to
+ * CDX_ANY_ID.
  */
 #define CDX_DEVICE_DRIVER_OVERRIDE(vend, dev, driver_override) \
-	.vendor = (vend), .device = (dev), .override_only = (driver_override)
+	.vendor = (vend), .device = (dev), .subvendor = CDX_ANY_ID,\
+	.subdevice = CDX_ANY_ID, .override_only = (driver_override)
 
 /**
  * struct cdx_ops - Callbacks supported by CDX controller.
+ * @bus_enable: enable bus on the controller
+ * @bus_disable: disable bus on the controller
  * @scan: scan the devices on the controller
  * @dev_configure: configuration like reset, master_enable,
  *		   msi_config etc for a CDX device
  */
 struct cdx_ops {
+	cdx_bus_enable_cb bus_enable;
+	cdx_bus_disable_cb bus_disable;
 	cdx_scan_cb scan;
 	cdx_dev_configure_cb dev_configure;
 };
@@ -65,12 +88,14 @@ struct cdx_ops {
  * @dev: Linux device associated with the CDX controller.
  * @priv: private data
  * @id: Controller ID
+ * @controller_registered: controller registered with bus
  * @ops: CDX controller ops
  */
 struct cdx_controller {
 	struct device *dev;
 	void *priv;
 	u32 id;
+	bool controller_registered;
 	struct cdx_ops *ops;
 };
 
@@ -80,6 +105,10 @@ struct cdx_controller {
  * @cdx: CDX controller associated with the device
  * @vendor: Vendor ID for CDX device
  * @device: Device ID for CDX device
+ * @subsystem_vendor: Subsystem Vendor ID for CDX device
+ * @subsystem_device: Subsystem Device ID for CDX device
+ * @class: Class for the CDX device
+ * @revision: Revision of the CDX device
  * @bus_num: Bus number for this CDX device
  * @dev_num: Device number for this device
  * @res: array of MMIO region entries
@@ -88,6 +117,8 @@ struct cdx_controller {
  * @dma_mask: Default DMA mask
  * @flags: CDX device flags
  * @req_id: Requestor ID associated with CDX device
+ * @is_bus: Is this bus device
+ * @enabled: is this bus enabled
  * @driver_override: driver name to force a match; do not set directly,
  *                   because core frees it; use driver_set_override() to
  *                   set or clear it.
@@ -97,6 +128,10 @@ struct cdx_device {
 	struct cdx_controller *cdx;
 	u16 vendor;
 	u16 device;
+	u16 subsystem_vendor;
+	u16 subsystem_device;
+	u32 class;
+	u8 revision;
 	u8 bus_num;
 	u8 dev_num;
 	struct resource res[MAX_CDX_DEV_RESOURCES];
@@ -104,6 +139,8 @@ struct cdx_device {
 	u64 dma_mask;
 	u16 flags;
 	u32 req_id;
+	bool is_bus;
+	bool enabled;
 	const char *driver_override;
 };
 
diff --git a/include/linux/comedi/comedi_8254.h b/include/linux/comedi/comedi_8254.h
index d8264417e53c..d527f04400df 100644
--- a/include/linux/comedi/comedi_8254.h
+++ b/include/linux/comedi/comedi_8254.h
@@ -12,6 +12,8 @@
 #define _COMEDI_8254_H
 
 #include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/err.h>
 
 struct comedi_device;
 struct comedi_insn;
@@ -57,10 +59,24 @@ struct comedi_subdevice;
 /* counter maps zero to 0x10000 */
 #define I8254_MAX_COUNT			0x10000
 
+struct comedi_8254;
+
+/**
+ * typedef comedi_8254_iocb_fn - call-back function type for 8254 register access
+ * @i8254:		pointer to struct comedi_8254
+ * @dir:		direction (0 = read, 1 = write)
+ * @reg:		register number
+ * @val:		value to write
+ *
+ * Return: Register value when reading, 0 when writing.
+ */
+typedef unsigned int comedi_8254_iocb_fn(struct comedi_8254 *i8254, int dir,
+					 unsigned int reg, unsigned int val);
+
 /**
  * struct comedi_8254 - private data used by this module
- * @iobase:		PIO base address of the registers (in/out)
- * @mmio:		MMIO base address of the registers (read/write)
+ * @iocb:		I/O call-back function for register access
+ * @context:		context for register access (e.g. a base address)
  * @iosize:		I/O size used to access the registers (b/w/l)
  * @regshift:		register gap shift
  * @osc_base:		cascaded oscillator speed in ns
@@ -76,8 +92,8 @@ struct comedi_subdevice;
  * @insn_config:	driver specific (*insn_config) callback
  */
 struct comedi_8254 {
-	unsigned long iobase;
-	void __iomem *mmio;
+	comedi_8254_iocb_fn *iocb;
+	unsigned long context;
 	unsigned int iosize;
 	unsigned int regshift;
 	unsigned int osc_base;
@@ -122,13 +138,24 @@ void comedi_8254_set_busy(struct comedi_8254 *i8254,
 void comedi_8254_subdevice_init(struct comedi_subdevice *s,
 				struct comedi_8254 *i8254);
 
-struct comedi_8254 *comedi_8254_init(unsigned long iobase,
-				     unsigned int osc_base,
-				     unsigned int iosize,
-				     unsigned int regshift);
-struct comedi_8254 *comedi_8254_mm_init(void __iomem *mmio,
-					unsigned int osc_base,
-					unsigned int iosize,
-					unsigned int regshift);
+#ifdef CONFIG_HAS_IOPORT
+struct comedi_8254 *comedi_8254_io_alloc(unsigned long iobase,
+					 unsigned int osc_base,
+					 unsigned int iosize,
+					 unsigned int regshift);
+#else
+static inline struct comedi_8254 *comedi_8254_io_alloc(unsigned long iobase,
+						       unsigned int osc_base,
+						       unsigned int iosize,
+						       unsigned int regshift)
+{
+	return ERR_PTR(-ENXIO);
+}
+#endif
+
+struct comedi_8254 *comedi_8254_mm_alloc(void __iomem *mmio,
+					 unsigned int osc_base,
+					 unsigned int iosize,
+					 unsigned int regshift);
 
 #endif	/* _COMEDI_8254_H */
diff --git a/include/linux/comedi/comedi_8255.h b/include/linux/comedi/comedi_8255.h
index b2a5bc6b3a49..d24a69da389b 100644
--- a/include/linux/comedi/comedi_8255.h
+++ b/include/linux/comedi/comedi_8255.h
@@ -10,6 +10,8 @@
 #ifndef _COMEDI_8255_H
 #define _COMEDI_8255_H
 
+#include <linux/errno.h>
+
 #define I8255_SIZE		0x04
 
 #define I8255_DATA_A_REG	0x00
@@ -27,16 +29,26 @@
 struct comedi_device;
 struct comedi_subdevice;
 
-int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s,
-		     int (*io)(struct comedi_device *dev, int dir, int port,
-			       int data, unsigned long regbase),
-		     unsigned long regbase);
+#ifdef CONFIG_HAS_IOPORT
+int subdev_8255_io_init(struct comedi_device *dev, struct comedi_subdevice *s,
+			unsigned long regbase);
+#else
+static inline int subdev_8255_io_init(struct comedi_device *dev,
+				      struct comedi_subdevice *s,
+				      unsigned long regbase)
+{
+	return -ENXIO;
+}
+#endif
 
 int subdev_8255_mm_init(struct comedi_device *dev, struct comedi_subdevice *s,
-			int (*io)(struct comedi_device *dev, int dir, int port,
-				  int data, unsigned long regbase),
 			unsigned long regbase);
 
+int subdev_8255_cb_init(struct comedi_device *dev, struct comedi_subdevice *s,
+			int (*io)(struct comedi_device *dev, int dir, int port,
+				  int data, unsigned long context),
+			unsigned long context);
+
 unsigned long subdev_8255_regbase(struct comedi_subdevice *s);
 
 #endif
diff --git a/include/linux/comedi/comedidev.h b/include/linux/comedi/comedidev.h
index 0a1150900ef3..c08416a7364b 100644
--- a/include/linux/comedi/comedidev.h
+++ b/include/linux/comedi/comedidev.h
@@ -633,7 +633,7 @@ extern const struct comedi_lrange range_unknown;
  */
 struct comedi_lrange {
 	int length;
-	struct comedi_krange range[];
+	struct comedi_krange range[] __counted_by(length);
 };
 
 /**
diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h
index 13b1e65fbdcc..6730ee900ee1 100644
--- a/include/linux/hid-sensor-ids.h
+++ b/include/linux/hid-sensor-ids.h
@@ -21,6 +21,10 @@
 #define HID_USAGE_SENSOR_ALS					0x200041
 #define HID_USAGE_SENSOR_DATA_LIGHT				0x2004d0
 #define HID_USAGE_SENSOR_LIGHT_ILLUM				0x2004d1
+#define HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE		0x2004d2
+#define HID_USAGE_SENSOR_LIGHT_CHROMATICITY			0x2004d3
+#define HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X			0x2004d4
+#define HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y			0x2004d5
 
 /* PROX (200011) */
 #define HID_USAGE_SENSOR_PROX                                   0x200011
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 202e55b0a28b..d0ce3b71106a 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -427,6 +427,8 @@ struct iio_trigger; /* forward declaration */
  * @write_event_config:	set if the event is enabled.
  * @read_event_value:	read a configuration value associated with the event.
  * @write_event_value:	write a configuration value for the event.
+ * @read_event_label:	function to request label name for a specified label,
+ *			for better event identification.
  * @validate_trigger:	function to validate the trigger when the
  *			current trigger gets changed.
  * @update_scan_mode:	function to configure device and scan buffer when
@@ -511,6 +513,12 @@ struct iio_info {
 				 enum iio_event_direction dir,
 				 enum iio_event_info info, int val, int val2);
 
+	int (*read_event_label)(struct iio_dev *indio_dev,
+				struct iio_chan_spec const *chan,
+				enum iio_event_type type,
+				enum iio_event_direction dir,
+				char *label);
+
 	int (*validate_trigger)(struct iio_dev *indio_dev,
 				struct iio_trigger *trig);
 	int (*update_scan_mode)(struct iio_dev *indio_dev,
@@ -556,7 +564,9 @@ struct iio_buffer_setup_ops {
  *			and owner
  * @buffer:		[DRIVER] any buffer present
  * @scan_bytes:		[INTERN] num bytes captured to be fed to buffer demux
- * @available_scan_masks: [DRIVER] optional array of allowed bitmasks
+ * @available_scan_masks: [DRIVER] optional array of allowed bitmasks. Sort the
+ *			   array in order of preference, the most preferred
+ *			   masks first.
  * @masklength:		[INTERN] the length of the mask established from
  *			channels
  * @active_scan_mask:	[INTERN] union of all scan masks requested by buffers
diff --git a/include/linux/iio/sw_device.h b/include/linux/iio/sw_device.h
index eff1e6b2595c..0f7fe7b522e3 100644
--- a/include/linux/iio/sw_device.h
+++ b/include/linux/iio/sw_device.h
@@ -51,9 +51,6 @@ void iio_unregister_sw_device_type(struct iio_sw_device_type *dt);
 struct iio_sw_device *iio_sw_device_create(const char *, const char *);
 void iio_sw_device_destroy(struct iio_sw_device *);
 
-int iio_sw_device_type_configfs_register(struct iio_sw_device_type *dt);
-void iio_sw_device_type_configfs_unregister(struct iio_sw_device_type *dt);
-
 static inline
 void iio_swd_group_init_type_name(struct iio_sw_device *d,
 				  const char *name,
diff --git a/include/linux/iio/sw_trigger.h b/include/linux/iio/sw_trigger.h
index 47de2443e984..bc77f88df303 100644
--- a/include/linux/iio/sw_trigger.h
+++ b/include/linux/iio/sw_trigger.h
@@ -51,9 +51,6 @@ void iio_unregister_sw_trigger_type(struct iio_sw_trigger_type *tt);
 struct iio_sw_trigger *iio_sw_trigger_create(const char *, const char *);
 void iio_sw_trigger_destroy(struct iio_sw_trigger *);
 
-int iio_sw_trigger_type_configfs_register(struct iio_sw_trigger_type *tt);
-void iio_sw_trigger_type_configfs_unregister(struct iio_sw_trigger_type *tt);
-
 static inline
 void iio_swt_group_init_type_name(struct iio_sw_trigger *t,
 				  const char *name,
diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h
index fd6e0620658d..b38a56a13f39 100644
--- a/include/linux/mei_cl_bus.h
+++ b/include/linux/mei_cl_bus.h
@@ -31,11 +31,11 @@ typedef void (*mei_cldev_cb_t)(struct mei_cl_device *cldev);
  * @rx_work: async work to execute Rx event callback
  * @rx_cb: Drivers register this callback to get asynchronous ME
  *	Rx buffer pending notifications.
- * @notif_work: async work to execute FW notif event callback
+ * @notif_work: async work to execute FW notify event callback
  * @notif_cb: Drivers register this callback to get asynchronous ME
  *	FW notification pending notifications.
  *
- * @do_match: wheather device can be matched with a driver
+ * @do_match: whether the device can be matched with a driver
  * @is_added: device is already scanned
  * @priv_data: client private data
  */
@@ -94,15 +94,23 @@ void mei_cldev_driver_unregister(struct mei_cl_driver *cldrv);
 
 ssize_t mei_cldev_send(struct mei_cl_device *cldev, const u8 *buf,
 		       size_t length);
+ssize_t mei_cldev_send_timeout(struct mei_cl_device *cldev, const u8 *buf,
+			       size_t length, unsigned long timeout);
 ssize_t mei_cldev_recv(struct mei_cl_device *cldev, u8 *buf, size_t length);
 ssize_t mei_cldev_recv_nonblock(struct mei_cl_device *cldev, u8 *buf,
 				size_t length);
+ssize_t mei_cldev_recv_timeout(struct mei_cl_device *cldev, u8 *buf, size_t length,
+			       unsigned long timeout);
 ssize_t mei_cldev_send_vtag(struct mei_cl_device *cldev, const u8 *buf,
 			    size_t length, u8 vtag);
+ssize_t mei_cldev_send_vtag_timeout(struct mei_cl_device *cldev, const u8 *buf,
+				    size_t length, u8 vtag, unsigned long timeout);
 ssize_t mei_cldev_recv_vtag(struct mei_cl_device *cldev, u8 *buf, size_t length,
 			    u8 *vtag);
 ssize_t mei_cldev_recv_nonblock_vtag(struct mei_cl_device *cldev, u8 *buf,
 				     size_t length, u8 *vtag);
+ssize_t mei_cldev_recv_vtag_timeout(struct mei_cl_device *cldev, u8 *buf, size_t length,
+			    u8 *vtag, unsigned long timeout);
 
 int mei_cldev_register_rx_cb(struct mei_cl_device *cldev, mei_cldev_cb_t rx_cb);
 int mei_cldev_register_notif_cb(struct mei_cl_device *cldev,
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index b0678b093cb2..aa3c28781248 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -935,6 +935,12 @@ enum {
  * struct cdx_device_id - CDX device identifier
  * @vendor: Vendor ID
  * @device: Device ID
+ * @subvendor: Subsystem vendor ID (or CDX_ANY_ID)
+ * @subdevice: Subsystem device ID (or CDX_ANY_ID)
+ * @class: Device class
+ *         Most drivers do not need to specify class/class_mask
+ *         as vendor/device is normally sufficient.
+ * @class_mask: Limit which sub-fields of the class field are compared.
  * @override_only: Match only when dev->driver_override is this driver.
  *
  * Type of entries in the "device Id" table for CDX devices supported by
@@ -943,6 +949,10 @@ enum {
 struct cdx_device_id {
 	__u16 vendor;
 	__u16 device;
+	__u16 subvendor;
+	__u16 subdevice;
+	__u32 class;
+	__u32 class_mask;
 	__u32 override_only;
 };
 
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index dae26295e6be..e3930835235b 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h
@@ -82,13 +82,13 @@ struct nvmem_cell_info {
  * @owner:	Pointer to exporter module. Used for refcounting.
  * @cells:	Optional array of pre-defined NVMEM cells.
  * @ncells:	Number of elements in cells.
+ * @add_legacy_fixed_of_cells:	Read fixed NVMEM cells from old OF syntax.
  * @keepout:	Optional array of keepout ranges (sorted ascending by start).
  * @nkeepout:	Number of elements in the keepout array.
  * @type:	Type of the nvmem storage
  * @read_only:	Device is read-only.
  * @root_only:	Device is accessibly to root only.
  * @of_node:	If given, this will be used instead of the parent's of_node.
- * @no_of_node:	Device should not use the parent's of_node even if it's !NULL.
  * @reg_read:	Callback to read data.
  * @reg_write:	Callback to write data.
  * @size:	Device size.
@@ -112,6 +112,7 @@ struct nvmem_config {
 	struct module		*owner;
 	const struct nvmem_cell_info	*cells;
 	int			ncells;
+	bool			add_legacy_fixed_of_cells;
 	const struct nvmem_keepout *keepout;
 	unsigned int		nkeepout;
 	enum nvmem_type		type;
@@ -120,7 +121,6 @@ struct nvmem_config {
 	bool			ignore_wp;
 	struct nvmem_layout	*layout;
 	struct device_node	*of_node;
-	bool			no_of_node;
 	nvmem_reg_read_t	reg_read;
 	nvmem_reg_write_t	reg_write;
 	int	size;
diff --git a/include/linux/parport.h b/include/linux/parport.h
index 999eddd619b7..fff39bc30629 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -180,8 +180,6 @@ struct ieee1284_info {
 	struct semaphore irq;
 };
 
-#define PARPORT_NAME_MAX_LEN 15
-
 /* A parallel port */
 struct parport {
 	unsigned long base;	/* base address */