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
  ...

4 files changed, 217 insertions, 4 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-cdx b/Documentation/ABI/testing/sysfs-bus-cdx
index 7af477f49998..8c067ff99e54 100644
--- a/Documentation/ABI/testing/sysfs-bus-cdx
+++ b/Documentation/ABI/testing/sysfs-bus-cdx
@@ -28,14 +28,57 @@ Description:
 		of a device manufacturer.
 		Combination of Vendor ID and Device ID identifies a device.
 
+What:		/sys/bus/cdx/devices/.../subsystem_vendor
+Date:		July 2023
+Contact:	puneet.gupta@amd.com
+Description:
+		Subsystem Vendor ID for this CDX device, in hexadecimal.
+		Subsystem Vendor ID is 16 bit identifier specific to the
+		card manufacturer.
+
+What:		/sys/bus/cdx/devices/.../subsystem_device
+Date:		July 2023
+Contact:	puneet.gupta@amd.com
+Description:
+		Subsystem Device ID for this CDX device, in hexadecimal
+		Subsystem Device ID is 16 bit identifier specific to the
+		card manufacturer.
+
+What:		/sys/bus/cdx/devices/.../class
+Date:		July 2023
+Contact:	puneet.gupta@amd.com
+Description:
+		This file contains the class of the CDX device, in hexadecimal.
+		Class is 24 bit identifier specifies the functionality of the device.
+
+What:		/sys/bus/cdx/devices/.../revision
+Date:		July 2023
+Contact:	puneet.gupta@amd.com
+Description:
+		This file contains the revision field of the CDX device, in hexadecimal.
+		Revision is 8 bit revision identifier of the device.
+
+What:		/sys/bus/cdx/devices/.../enable
+Date:		October 2023
+Contact:	abhijit.gangurde@amd.com
+Description:
+		CDX bus should be disabled before updating the devices in FPGA.
+		Writing n/0/off will attempt to disable the CDX bus and.
+		writing y/1/on will attempt to enable the CDX bus. Reading this file
+		gives the current state of the bus, 1 for enabled and 0 for disabled.
+
+		For example::
+
+		  # echo 1 > /sys/bus/cdx/.../enable
+
 What:		/sys/bus/cdx/devices/.../reset
 Date:		March 2023
 Contact:	nipun.gupta@amd.com
 Description:
-		Writing y/1/on to this file resets the CDX device.
-		On resetting the device, the corresponding driver is notified
-		twice, once before the device is being reset, and again after
-		the reset has been complete.
+		Writing y/1/on to this file resets the CDX device or all devices
+		on the bus. On resetting the device, the corresponding driver is
+		notified twice, once before the device is being reset, and again
+		after the reset has been complete.
 
 		For example::
 
@@ -54,3 +97,18 @@ Description:
 		For example::
 
 		  # echo 1 > /sys/bus/cdx/devices/.../remove
+
+What:		/sys/bus/cdx/devices/.../modalias
+Date:		July 2023
+Contact:	nipun.gupta@amd.com
+Description:
+		This attribute indicates the CDX ID of the device.
+		That is in the format:
+		cdx:vXXXXdXXXXsvXXXXsdXXXXcXXXXXX,
+		where:
+
+		    - vXXXX contains the vendor ID;
+		    - dXXXX contains the device ID;
+		    - svXXXX contains the subsystem vendor ID;
+		    - sdXXXX contains the subsystem device ID;
+		    - cXXXXXX contains the device class.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index a2854dc9a839..19cde14f3869 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -279,6 +279,35 @@ Description:
 		but should match other such assignments on device).
 		Units after application of scale and offset are m/s^2.
 
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_x_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_y_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_z_raw
+KernelVersion:	6.5
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Angular displacement between two consecutive samples on x, y or
+		z (may be arbitrarily assigned but should match other such
+		assignments on device).
+		In order to compute the total angular displacement during a
+		desired period of time, the application should sum-up the delta
+		angle samples acquired during that time.
+		Units after application of scale and offset are radians.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_x_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_y_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_z_raw
+KernelVersion:	6.5
+Contact:	linux-iio@vger.kernel.org
+Description:
+		The linear velocity change between two consecutive samples on x,
+		y or z (may be arbitrarily assigned but should match other such
+		assignments on device).
+		In order to compute the total linear velocity change during a
+		desired period of time, the application should sum-up the delta
+		velocity samples acquired during that time.
+		Units after application of scale and offset are meters per
+		second.
+
 What:		/sys/bus/iio/devices/iio:deviceX/in_angl_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_raw
 KernelVersion:	4.17
@@ -461,6 +490,8 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_scale
+What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
@@ -1332,6 +1363,12 @@ Description:
 What:		/sys/.../iio:deviceX/bufferY/in_accel_x_en
 What:		/sys/.../iio:deviceX/bufferY/in_accel_y_en
 What:		/sys/.../iio:deviceX/bufferY/in_accel_z_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_x_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_y_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_z_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_x_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_y_en
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_z_en
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_en
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_en
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_en
@@ -1362,6 +1399,8 @@ Description:
 		Scan element control for triggered data capture.
 
 What:		/sys/.../iio:deviceX/bufferY/in_accel_type
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_type
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_type
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_type
 What:		/sys/.../iio:deviceX/bufferY/in_magn_type
 What:		/sys/.../iio:deviceX/bufferY/in_incli_type
@@ -1416,6 +1455,12 @@ What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_index
 What:		/sys/.../iio:deviceX/bufferY/in_accel_x_index
 What:		/sys/.../iio:deviceX/bufferY/in_accel_y_index
 What:		/sys/.../iio:deviceX/bufferY/in_accel_z_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_x_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_y_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_z_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_x_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_y_index
+What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_z_index
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_index
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_index
 What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_index
@@ -2179,3 +2224,33 @@ Contact:	linux-iio@vger.kernel.org
 Description:
 		Number of conditions that must occur, during a running
 		period, before an event is generated.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_colortemp_raw
+KernelVersion:	6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Represents light color temperature, which measures light color
+		temperature in Kelvin.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_x_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_y_raw
+KernelVersion:	6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		The x and y light color coordinate on the CIE 1931 chromaticity
+		diagram.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_either_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_rising_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_falling_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_rising_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_anglvelY_mag_rising_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_anglY_thresh_rising_label
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_phaseY_mag_rising_label
+KernelVersion:	6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Optional symbolic label to a device channel event.
+		If a label is defined for this event add that to the event
+		specific attributes. This is useful for userspace to be able to
+		better identify an individual event.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-mcp3564 b/Documentation/ABI/testing/sysfs-bus-iio-adc-mcp3564
new file mode 100644
index 000000000000..b168aa44b233
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-mcp3564
@@ -0,0 +1,53 @@
+What:		/sys/bus/iio/devices/iio:deviceX/boost_current_gain
+KernelVersion:	6.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is used to set the gain of the biasing current
+		circuit of the Delta-Sigma modulator. The different BOOST
+		settings are applied to the entire modulator circuit, including
+		the voltage reference buffers.
+
+What:		/sys/bus/iio/devices/iio:deviceX/boost_current_gain_available
+KernelVersion:	6.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns a list with the possible gain values for
+		the current biasing circuit of the Delta-Sigma modulator.
+
+What:		/sys/bus/iio/devices/iio:deviceX/auto_zeroing_mux_enable
+KernelVersion:	6.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is used to enable the analog input multiplexer
+		auto-zeroing algorithm (the input multiplexer and the ADC
+		include an offset cancellation algorithm that cancels the offset
+		contribution of the ADC). When the offset cancellation algorithm
+		is enabled, ADC takes two conversions, one with the differential
+		input as VIN+/VIN-, one with VIN+/VIN- inverted. In this case the
+		conversion time is multiplied by two compared to the default
+		case where the algorithm is disabled. This technique allows the
+		cancellation of the ADC offset error and the achievement of
+		ultra-low offset without any digital calibration. The resulting
+		offset is the residue of the difference between the two
+		conversions, which is on the order of magnitude of the noise
+		floor. This offset is effectively canceled at every conversion,
+		so the residual offset error temperature drift is extremely low.
+		Write '1' to enable it, write '0' to disable it.
+
+What:		/sys/bus/iio/devices/iio:deviceX/auto_zeroing_ref_enable
+KernelVersion:	6.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is used to enable the chopping algorithm for the
+		internal voltage reference buffer. This setting has no effect
+		when external voltage reference is selected.
+		Internal voltage reference buffer injects a certain quantity of
+		1/f noise into the system that can be modulated with the
+		incoming input signals and can limit the SNR performance at
+		higher Oversampling Ratio values (over 256). To overcome this
+		limitation, the buffer includes an auto-zeroing algorithm that
+		greatly reduces (cancels out) the 1/f noise and cancels the
+		offset value of the reference buffer. As a result, the SNR of
+		the system is not affected by this 1/f noise component of the
+		reference buffer, even at maximum oversampling ratio values.
+		Write '1' to enable it, write '0' to disable it.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-resolver-ad2s1210 b/Documentation/ABI/testing/sysfs-bus-iio-resolver-ad2s1210
new file mode 100644
index 000000000000..f92c79342b93
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-resolver-ad2s1210
@@ -0,0 +1,27 @@
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max
+KernelVersion:  6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns the current Degradation of Signal Reset Maximum
+		Threshold value in millivolts. Writing sets the value.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max_available
+KernelVersion:  6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns the allowable voltage range for
+		in_altvoltage0_mag_rising_reset_max.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min
+KernelVersion:  6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns the current Degradation of Signal Reset Minimum
+		Threshold value in millivolts. Writing sets the value.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min_available
+KernelVersion:  6.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns the allowable voltage range for
+		in_altvoltage0_mag_rising_reset_min.