Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc drivers updates from Greg KH:
 "Here is the "big" set of char/misc and other driver subsystems for
  6.4-rc1.

  It's pretty big, but due to the removal of pcmcia drivers, almost
  breaks even for number of lines added vs. removed, a nice change.

  Included in here are:

   - removal of unused PCMCIA drivers (finally!)

   - Interconnect driver updates and additions

   - Lots of IIO driver updates and additions

   - MHI driver updates

   - Coresight driver updates

   - NVMEM driver updates, which required some OF updates

   - W1 driver updates and a new maintainer to manage the subsystem

   - FPGA driver updates

   - New driver subsystem, CDX, for AMD systems

   - lots of other small driver updates and additions

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

* tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits)
  mcb-lpc: Reallocate memory region to avoid memory overlapping
  mcb-pci: Reallocate memory region to avoid memory overlapping
  mcb: Return actual parsed size when reading chameleon table
  kernel/configs: Drop Android config fragments
  virt: acrn: Replace obsolete memalign() with posix_memalign()
  spmi: Add a check for remove callback when removing a SPMI driver
  spmi: fix W=1 kernel-doc warnings
  spmi: mtk-pmif: Drop of_match_ptr for ID table
  spmi: pmic-arb: Convert to platform remove callback returning void
  spmi: mtk-pmif: Convert to platform remove callback returning void
  spmi: hisi-spmi-controller: Convert to platform remove callback returning void
  w1: gpio: remove unnecessary ENOMEM messages
  w1: omap-hdq: remove unnecessary ENOMEM messages
  w1: omap-hdq: add SPDX tag
  w1: omap-hdq: allow compile testing
  w1: matrox: remove unnecessary ENOMEM messages
  w1: matrox: use inline over __inline__
  w1: matrox: switch from asm to linux header
  w1: ds2482: do not use assignment in if condition
  w1: ds2482: drop unnecessary header
  ...

CREDITS

@@ -3475,6 +3475,11 @@ D: several improvements to system programs
 S: Oldenburg
 S: Germany
 
+N: Mathieu Poirier
+E: mathieu.poirier@linaro.org
+D: CoreSight kernel subsystem, Maintainer 2014-2022
+D: Perf tool support for CoreSight
+
 N: Robert Schwebel
 E: robert@schwebel.de
 W: https://www.schwebel.de

Documentation/ABI/testing/sysfs-bus-cdx

+What:		/sys/bus/cdx/rescan
+Date:		March 2023
+Contact:	nipun.gupta@amd.com
+Description:
+		Writing y/1/on to this file will cause rescan of the bus
+		and devices on the CDX bus. Any new devices are scanned and
+		added to the list of Linux devices and any devices removed are
+		also deleted from Linux.
+
+		For example::
+
+		  # echo 1 > /sys/bus/cdx/rescan
+
+What:		/sys/bus/cdx/devices/.../vendor
+Date:		March 2023
+Contact:	nipun.gupta@amd.com
+Description:
+		Vendor ID for this CDX device, in hexadecimal. Vendor ID is
+		16 bit identifier which is specific to the device manufacturer.
+		Combination of Vendor ID and Device ID identifies a device.
+
+What:		/sys/bus/cdx/devices/.../device
+Date:		March 2023
+Contact:	nipun.gupta@amd.com
+Description:
+		Device ID for this CDX device, in hexadecimal. Device ID is
+		16 bit identifier to identify a device type within the range
+		of a device manufacturer.
+		Combination of Vendor ID and Device ID identifies a device.
+
+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.
+
+		For example::
+
+		  # echo 1 > /sys/bus/cdx/.../reset
+
+What:		/sys/bus/cdx/devices/.../remove
+Date:		March 2023
+Contact:	tarak.reddy@amd.com
+Description:
+		Writing y/1/on to this file removes the corresponding
+		device from the CDX bus. If the device is to be reconfigured
+		reconfigured in the Hardware, the device can be removed, so
+		that the device driver does not access the device while it is
+		being reconfigured.
+
+		For example::
+
+		  # echo 1 > /sys/bus/cdx/devices/.../remove

Documentation/ABI/testing/sysfs-bus-iio

@@ -1807,8 +1807,8 @@ What:		/sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
 KernelVersion:	4.3
 Contact:	linux-iio@vger.kernel.org
 Description:
-		Raw (unscaled no offset etc.) resistance reading that can be processed
-		into an ohm value.
+		Raw (unscaled no offset etc.) resistance reading.
+		Units after application of scale and offset are ohms.
 
 What:		/sys/bus/iio/devices/iio:deviceX/heater_enable
 KernelVersion:	4.1.0
@@ -1894,8 +1894,9 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
 KernelVersion:	4.8
 Contact:	linux-iio@vger.kernel.org
 Description:
-		Raw (unscaled no offset etc.) electric conductivity reading that
-		can be processed to siemens per meter.
+		Raw (unscaled no offset etc.) electric conductivity reading.
+		Units after application of scale and offset are siemens per
+		meter.
 
 What:		/sys/bus/iio/devices/iio:deviceX/in_countY_raw
 KernelVersion:	4.10
@@ -1951,8 +1952,8 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
 KernelVersion:	4.18
 Contact:	linux-iio@vger.kernel.org
 Description:
-		Raw (unscaled) phase difference reading from channel Y
-		that can be processed to radians.
+		Raw (unscaled) phase difference reading from channel Y.
+		Units after application of scale and offset are radians.
 
 What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
 What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input

Documentation/ABI/testing/sysfs-bus-platform-devices-ampere-smpro

@@ -234,8 +234,8 @@ Description:
 		For details, see section `5.10 RAS Internal Error Register Definitions,
 		Altra Family Soc BMC Interface Specification`.
 
-What:		/sys/bus/platform/devices/smpro-errmon.*/event_[vrd_warn_fault|vrd_hot|dimm_hot]
-KernelVersion:	6.1
+What:		/sys/bus/platform/devices/smpro-errmon.*/event_[vrd_warn_fault|vrd_hot|dimm_hot|dimm_2x_refresh]
+KernelVersion:	6.1 (event_[vrd_warn_fault|vrd_hot|dimm_hot]), 6.4 (event_dimm_2x_refresh)
 Contact:	Quan Nguyen <quan@os.amperecomputing.com>
 Description:
 		(RO) Contains the detail information in case of VRD/DIMM warning/hot events
@@ -258,8 +258,21 @@ Description:
 		+---------------+---------------------------------------------------------------+---------------------+
 		| DIMM HOT      | /sys/bus/platform/devices/smpro-errmon.*/event_dimm_hot       | DIMM Hot            |
 		+---------------+---------------------------------------------------------------+---------------------+
+		| DIMM 2X       | /sys/bus/platform/devices/smpro-errmon.*/event_dimm_2x_refresh| DIMM 2x refresh rate|
+		| REFRESH RATE  |                                                               | event in high temp  |
+		+---------------+---------------------------------------------------------------+---------------------+
+
+		For more details, see section `5.7 GPI Status Registers and 5.9 Memory Error Register Definitions,
+		Altra Family Soc BMC Interface Specification`.
+
+What:		/sys/bus/platform/devices/smpro-errmon.*/event_dimm[0-15]_syndrome
+KernelVersion:	6.4
+Contact:	Quan Nguyen <quan@os.amperecomputing.com>
+Description:
+		(RO) The sysfs returns the 2-byte DIMM failure syndrome data for slot
+		0-15 if it failed to initialize.
 
-		For more details, see section `5.7 GPI Status Registers,
+		For more details, see section `5.11 Boot Stage Register Definitions,
 		Altra Family Soc BMC Interface Specification`.
 
 What:		/sys/bus/platform/devices/smpro-misc.*/boot_progress

Documentation/ABI/testing/sysfs-driver-zynqmp-fpga

+What:		/sys/bus/platform/drivers/zynqmp_fpga_manager/firmware:zynqmp-firmware:pcap/status
+Date:		February 2023
+KernelVersion:	6.4
+Contact:	Nava kishore Manne <nava.kishore.manne@amd.com>
+Description:	(RO) Read fpga status.
+		Read returns a hexadecimal value that tells the current status
+		of the FPGA device. Each bit position in the status value is
+		described Below(see ug570 chapter 9).
+		https://docs.xilinx.com/v/u/en-US/ug570-ultrascale-configuration
+
+		======================  ==============================================
+		BIT(0)			0: No CRC error
+					1: CRC error
+
+		BIT(1)			0: Decryptor security not set
+					1: Decryptor security set
+
+		BIT(2)			0: MMCMs/PLLs are not locked
+					1: MMCMs/PLLs are locked
+
+		BIT(3)			0: DCI not matched
+					1: DCI matched
+
+		BIT(4)			0: Start-up sequence has not finished
+					1: Start-up sequence has finished
+
+		BIT(5)			0: All I/Os are placed in High-Z state
+					1: All I/Os behave as configured
+
+		BIT(6)			0: Flip-flops and block RAM are write disabled
+					1: Flip-flops and block RAM are write enabled
+
+		BIT(7)			0: GHIGH_B_STATUS asserted
+					1: GHIGH_B_STATUS deasserted
+
+		BIT(8) to BIT(10)	Status of the mode pins
+
+		BIT(11)			0: Initialization has not finished
+					1: Initialization finished
+
+		BIT(12)			Value on INIT_B_PIN pin
+
+		BIT(13)			0: Signal not released
+					1: Signal released
+
+		BIT(14)			Value on DONE_PIN pin.
+
+		BIT(15)			0: No IDCODE_ERROR
+					1: IDCODE_ERROR
+
+		BIT(16)			0: No SECURITY_ERROR
+					1: SECURITY_ERROR
+
+		BIT(17)			System Monitor over-temperature if set
+
+		BIT(18) to BIT(20)	Start-up state machine (0 to 7)
+					Phase 0 = 000
+					Phase 1 = 001
+					Phase 2 = 011
+					Phase 3 = 010
+					Phase 4 = 110
+					Phase 5 = 111
+					Phase 6 = 101
+					Phase 7 = 100
+
+		BIT(25) to BIT(26)	Indicates the detected bus width
+					00 = x1
+					01 = x8
+					10 = x16
+					11 = x32
+		======================  ==============================================
+
+		The other bits are reserved.

Documentation/devicetree/bindings/bus/xlnx,versal-net-cdx.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/xlnx,versal-net-cdx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMD CDX bus controller
+
+description: |
+  CDX bus controller for AMD devices is implemented to dynamically
+  detect CDX bus and devices using the firmware.
+  The CDX bus manages multiple FPGA based hardware devices, which
+  can support network, crypto or any other specialized type of
+  devices. These FPGA based devices can be added/modified dynamically
+  on run-time.
+
+  All devices on the CDX bus will have a unique streamid (for IOMMU)
+  and a unique device ID (for MSI) corresponding to a requestor ID
+  (one to one associated with the device). The streamid and deviceid
+  are used to configure SMMU and GIC-ITS respectively.
+
+  iommu-map property is used to define the set of stream ids
+  corresponding to each device and the associated IOMMU.
+
+  The MSI writes are accompanied by sideband data (Device ID).
+  The msi-map property is used to associate the devices with the
+  device ID as well as the associated ITS controller.
+
+  rproc property (xlnx,rproc) is used to identify the remote processor
+  with which APU (Application Processor Unit) interacts to find out
+  the bus and device configuration.
+
+maintainers:
+  - Nipun Gupta <nipun.gupta@amd.com>
+  - Nikhil Agarwal <nikhil.agarwal@amd.com>
+
+properties:
+  compatible:
+    const: xlnx,versal-net-cdx
+
+  iommu-map: true
+
+  msi-map: true
+
+  xlnx,rproc:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle to the remoteproc_r5 rproc node using which APU interacts
+      with remote processor.
+
+  ranges: true
+
+  "#address-cells":
+    enum: [1, 2]
+
+  "#size-cells":
+    enum: [1, 2]
+
+required:
+  - compatible
+  - iommu-map
+  - msi-map
+  - xlnx,rproc
+  - ranges
+  - "#address-cells"
+  - "#size-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    cdx {
+        compatible = "xlnx,versal-net-cdx";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        /* define map for RIDs 250-259 */
+        iommu-map = <250 &smmu 250 10>;
+        /* define msi map for RIDs 250-259 */
+        msi-map = <250 &its 250 10>;
+        xlnx,rproc = <&remoteproc_r5>;
+        ranges;
+    };

Documentation/devicetree/bindings/iio/adc/renesas,rcar-gyroadc.yaml

@@ -34,9 +34,11 @@ properties:
   clock-names:
     const: fck
 
-  power-domains: true
+  power-domains:
+    maxItems: 1
 
-  resets: true
+  resets:
+    maxItems: 1
 
   "#address-cells":
     const: 1
@@ -51,6 +53,8 @@ required:
   - reg
   - clocks
   - clock-names
+  - power-domains
+  - resets
   - "#address-cells"
   - "#size-cells"
 
@@ -108,21 +112,16 @@ patternProperties:
 
 examples:
   - |
-    #include <dt-bindings/clock/r8a7791-clock.h>
+    #include <dt-bindings/clock/r8a7791-cpg-mssr.h>
     #include <dt-bindings/power/r8a7791-sysc.h>
-    soc {
-        #address-cells = <2>;
-        #size-cells = <2>;
 
     adc@e6e54000 {
         compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
-            reg = <0 0xe6e54000 0 64>;
-            clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
+        reg = <0xe6e54000 64>;
+        clocks = <&cpg CPG_MOD 901>;
         clock-names = "fck";
         power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
-
-            pinctrl-0 = <&adc_pins>;
-            pinctrl-names = "default";
+        resets = <&cpg 901>;
 
         #address-cells = <1>;
         #size-cells = <0>;
@@ -139,5 +138,4 @@ examples:
             vref-supply = <&vref_max1162>;
         };
     };
-    };
 ...

Documentation/devicetree/bindings/iio/adc/ti,ads1100.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads1100.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI ADS1100/ADS1000 single channel I2C analog to digital converter
+
+maintainers:
+  - Mike Looijmans <mike.looijmans@topic.nl>
+
+description: |
+  Datasheet at: https://www.ti.com/lit/gpn/ads1100
+
+properties:
+  compatible:
+    enum:
+      - ti,ads1100
+      - ti,ads1000
+
+  reg:
+    maxItems: 1
+
+  vdd-supply: true
+
+  "#io-channel-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@49 {
+            compatible = "ti,ads1100";
+            reg = <0x49>;
+        };
+    };
+...

Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml

@@ -101,6 +101,15 @@ patternProperties:
           When not configured as a comparator, the GPO will be treated as an
           output-only GPIO.
 
+      drive-strength-microamp:
+        description: |
+          For channels configured as digital input, this configures the sink
+          current.
+        minimum: 0
+        maximum: 1800
+        default: 0
+        multipleOf: 120
+
     required:
       - reg
 

Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml

@@ -46,6 +46,9 @@ properties:
       - items:
           - const: st,ism330is
           - const: st,lsm6dso16is
+      - items:
+          - const: st,asm330lhb
+          - const: st,asm330lhh
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/iio/light/rohm,bu27034.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/rohm,bu27034.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BU27034 ambient light sensor
+
+maintainers:
+  - Matti Vaittinen <mazziesaccount@gmail.com>
+
+description: |
+  ROHM BU27034 is an ambient light sesnor with 3 channels and 3 photo diodes
+  capable of detecting a very wide range of illuminance. Typical application
+  is adjusting LCD and backlight power of TVs and mobile phones.
+  https://fscdn.rohm.com/en/products/databook/datasheet/ic/sensor/light/bu27034nuc-e.pdf
+
+properties:
+  compatible:
+    const: rohm,bu27034
+
+  reg:
+    maxItems: 1
+
+  vdd-supply: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      light-sensor@38 {
+        compatible = "rohm,bu27034";
+        reg = <0x38>;
+        vdd-supply = <&vdd>;
+      };
+    };
+
+...

Documentation/devicetree/bindings/iio/pressure/bmp085.yaml

@@ -17,6 +17,7 @@ description: |
     https://www.bosch-sensortec.com/bst/products/all_products/bmp280
     https://www.bosch-sensortec.com/bst/products/all_products/bme280
     https://www.bosch-sensortec.com/bst/products/all_products/bmp380
+    https://www.bosch-sensortec.com/bst/products/all_products/bmp580
 
 properties:
   compatible:
@@ -26,6 +27,7 @@ properties:
       - bosch,bmp280
       - bosch,bme280
       - bosch,bmp380
+      - bosch,bmp580
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/iio/st,st-sensors.yaml

@@ -11,9 +11,6 @@ description: The STMicroelectronics sensor devices are pretty straight-forward
   what type of sensor it is.
   Note that whilst this covers many STMicro MEMs sensors, some more complex
   IMUs need their own bindings.
-  The STMicroelectronics sensor devices are pretty straight-forward I2C or
-  SPI devices, all sharing the same device tree descriptions no matter what
-  type of sensor it is.
 
 maintainers:
   - Denis Ciocca <denis.ciocca@st.com>
@@ -48,6 +45,9 @@ properties:
           - st,lsm330d-accel
           - st,lsm330dl-accel
           - st,lsm330dlc-accel
+      - items:
+          - const: st,iis328dq
+          - const: st,h3lis331dl-accel
       - description: Silan Accelerometers
         enum:
           - silan,sc7a20

Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml

@@ -18,6 +18,28 @@ description: |
   https://www.analog.com/media/en/technical-documentation/data-sheets/29861fa.pdf
   https://www.analog.com/media/en/technical-documentation/data-sheets/ltm2985.pdf
 
+$defs:
+  sensor-node:
+    type: object
+    description: Sensor node common constraints
+
+    properties:
+      reg:
+        description:
+          Channel number. Connects the sensor to the channel with this number
+          of the device.
+        minimum: 1
+        maximum: 20
+
+      adi,sensor-type:
+        description: Type of sensor connected to the device.
+        $ref: /schemas/types.yaml#/definitions/uint32
+
+    required:
+      - reg
+      - adi,sensor-type
+
+
 properties:
   compatible:
     oneOf:
@@ -64,28 +86,10 @@ properties:
     const: 0
 
 patternProperties:
-  "@([0-9a-f]+)$":
-    type: object
-    description: Sensor.
-
-    properties:
-      reg:
-        description:
-          Channel number. Connects the sensor to the channel with this number
-          of the device.
-        minimum: 1
-        maximum: 20
-
-      adi,sensor-type:
-        description: Type of sensor connected to the device.
-        $ref: /schemas/types.yaml#/definitions/uint32
-
-    required:
-      - reg
-      - adi,sensor-type
-
   "^thermocouple@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
+
     description: Thermocouple sensor.
 
     properties:
@@ -123,7 +127,7 @@ patternProperties:
         description:
           Used for digitizing custom thermocouples.
           See Page 59 of the datasheet.
-        $ref: /schemas/types.yaml#/definitions/uint64-matrix
+        $ref: /schemas/types.yaml#/definitions/int64-matrix
         minItems: 3
         maxItems: 64
         items:
@@ -141,7 +145,9 @@ patternProperties:
             - adi,custom-thermocouple
 
   "^diode@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
+
     description: Diode sensor.
 
     properties:
@@ -184,7 +190,8 @@ patternProperties:
         default: 0
 
   "^rtd@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: RTD sensor.
 
     properties:
@@ -282,7 +289,8 @@ patternProperties:
             - adi,custom-rtd
 
   "^thermistor@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: Thermistor sensor.
 
     properties:
@@ -383,7 +391,8 @@ patternProperties:
             - adi,custom-thermistor
 
   "^adc@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: Direct ADC sensor.
 
     properties:
@@ -397,7 +406,8 @@ patternProperties:
         type: boolean
 
   "^temp@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: Active analog temperature sensor.
 
     properties:
@@ -426,7 +436,8 @@ patternProperties:
       - adi,custom-temp
 
   "^rsense@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: Sense resistor sensor.
 
     properties:

Documentation/devicetree/bindings/iio/temperature/ti,tmp117.yaml

@@ -7,9 +7,10 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: TI TMP117 - Digital temperature sensor with integrated NV memory
 
 description: |
-    TI TMP117 - Digital temperature sensor with integrated NV memory that supports
-    I2C interface.
-      https://www.ti.com/lit/gpn/tmp1
+    TI TMP116/117 - Digital temperature sensor with integrated NV memory that
+    supports I2C interface.
+      https://www.ti.com/lit/gpn/tmp116
+      https://www.ti.com/lit/gpn/tmp117
 
 maintainers:
   - Puranjay Mohan <puranjay12@gmail.com>
@@ -17,6 +18,7 @@ maintainers:
 properties:
   compatible:
     enum:
+      - ti,tmp116
       - ti,tmp117
 
   reg:

Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml

@@ -22,14 +22,14 @@ description: |
 properties:
   compatible:
     oneOf:
+      - const: qcom,msm8998-bwmon       # BWMON v4
       - items:
           - enum:
               - qcom,sc7280-cpu-bwmon
               - qcom,sc8280xp-cpu-bwmon
-              - qcom,sdm845-bwmon
+              - qcom,sdm845-cpu-bwmon
               - qcom,sm8550-cpu-bwmon
-          - const: qcom,msm8998-bwmon
-      - const: qcom,msm8998-bwmon       # BWMON v4
+          - const: qcom,sdm845-bwmon    # BWMON v4, unified register space
       - items:
           - enum:
               - qcom,sc8280xp-llcc-bwmon
@@ -49,9 +49,13 @@ properties:
     type: object
 
   reg:
-    # BWMON v4 (currently described) and BWMON v5 use one register address
-    # space.  BWMON v2 uses two register spaces - not yet described.
-    maxItems: 1
+    # BWMON v5 uses one register address space, v1-v4 use one or two.
+    minItems: 1
+    maxItems: 2
+
+  reg-names:
+    minItems: 1
+    maxItems: 2
 
 required:
   - compatible
@@ -63,13 +67,36 @@ required:
 
 additionalProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          const: qcom,msm8998-bwmon
+    then:
+      properties:
+        reg:
+          minItems: 2
+
+        reg-names:
+          items:
+            - const: monitor
+            - const: global
+
+    else:
+      properties:
+        reg:
+          maxItems: 1
+
+        reg-names:
+          maxItems: 1
+
 examples:
   - |
     #include <dt-bindings/interconnect/qcom,sdm845.h>
     #include <dt-bindings/interrupt-controller/arm-gic.h>
 
     pmu@1436400 {
-        compatible = "qcom,sdm845-bwmon", "qcom,msm8998-bwmon";
+        compatible = "qcom,sdm845-cpu-bwmon", "qcom,sdm845-bwmon";
         reg = <0x01436400 0x600>;
         interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
         interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_LLCC 3>;

Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml

@@ -29,6 +29,7 @@ properties:
           - enum:
               - qcom,sc7280-epss-l3
               - qcom,sc8280xp-epss-l3
+              - qcom,sm6375-cpucp-l3
               - qcom,sm8250-epss-l3
               - qcom,sm8350-epss-l3
           - const: qcom,epss-l3

Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml

@@ -11,7 +11,7 @@ maintainers:
   - Maxime Ripard <mripard@kernel.org>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/amlogic,meson-gxbb-efuse.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/amlogic,meson-gxbb-efuse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson GX eFuse
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+
+allOf:
+  - $ref: nvmem.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: amlogic,meson-gxbb-efuse
+      - items:
+          - const: amlogic,meson-gx-efuse
+          - const: amlogic,meson-gxbb-efuse
+
+  clocks:
+    maxItems: 1
+
+  secure-monitor:
+    description: phandle to the secure-monitor node
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+  - compatible
+  - clocks
+  - secure-monitor
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    efuse: efuse {
+        compatible = "amlogic,meson-gxbb-efuse";
+        clocks = <&clk_efuse>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+        secure-monitor = <&sm>;
+
+        sn: sn@14 {
+            reg = <0x14 0x10>;
+        };
+
+        eth_mac: mac@34 {
+            reg = <0x34 0x10>;
+        };
+
+        bid: bid@46 {
+            reg = <0x46 0x30>;
+        };
+    };

Documentation/devicetree/bindings/nvmem/amlogic,meson6-efuse.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/amlogic,meson6-efuse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson6 eFuse
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+  - Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+
+allOf:
+  - $ref: nvmem.yaml#
+
+properties:
+  compatible:
+    enum:
+      - amlogic,meson6-efuse
+      - amlogic,meson8-efuse
+      - amlogic,meson8b-efuse
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: core
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    efuse: efuse@0 {
+        compatible = "amlogic,meson6-efuse";
+        reg = <0x0 0x2000>;
+        clocks = <&clk_efuse>;
+        clock-names = "core";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        ethernet_mac_address: mac@1b4 {
+            reg = <0x1b4 0x6>;
+        };
+
+        temperature_calib: calib@1f4 {
+             reg = <0x1f4 0x4>;
+        };
+    };

Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt

-= Amlogic Meson GX eFuse device tree bindings =
-
-Required properties:
-- compatible: should be "amlogic,meson-gxbb-efuse"
-- clocks: phandle to the efuse peripheral clock provided by the
-	  clock controller.
-- secure-monitor: phandle to the secure-monitor node
-
-= Data cells =
-Are child nodes of eFuse, bindings of which as described in
-bindings/nvmem/nvmem.txt
-
-Example:
-
-	efuse: efuse {
-		compatible = "amlogic,meson-gxbb-efuse";
-		clocks = <&clkc CLKID_EFUSE>;
-		#address-cells = <1>;
-		#size-cells = <1>;
-		secure-monitor = <&sm>;
-
-		sn: sn@14 {
-			reg = <0x14 0x10>;
-		};
-
-		eth_mac: eth_mac@34 {
-			reg = <0x34 0x10>;
-		};
-
-		bid: bid@46 {
-			reg = <0x46 0x30>;
-		};
-	};
-
-	sm: secure-monitor {
-		compatible = "amlogic,meson-gxbb-sm";
-	};
-
-= Data consumers =
-Are device nodes which consume nvmem data cells.
-
-For example:
-
-	eth_mac {
-		...
-		nvmem-cells = <&eth_mac>;
-		nvmem-cell-names = "eth_mac";
-	};

Documentation/devicetree/bindings/nvmem/amlogic-meson-mx-efuse.txt

-Amlogic Meson6/Meson8/Meson8b efuse
-
-Required Properties:
-- compatible: depending on the SoC this should be one of:
-	- "amlogic,meson6-efuse"
-	- "amlogic,meson8-efuse"
-	- "amlogic,meson8b-efuse"
-- reg: base address and size of the efuse registers
-- clocks: a reference to the efuse core gate clock
-- clock-names: must be "core"
-
-All properties and sub-nodes as well as the consumer bindings
-defined in nvmem.txt in this directory are also supported.
-
-
-Example:
-	efuse: nvmem@0 {
-		compatible = "amlogic,meson8-efuse";
-		reg = <0x0 0x2000>;
-		clocks = <&clkc CLKID_EFUSE>;
-		clock-names = "core";
-	};

Documentation/devicetree/bindings/nvmem/apple,efuses.yaml

@@ -15,7 +15,7 @@ maintainers:
   - Sven Peter <sven@svenpeter.dev>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml

@@ -20,7 +20,7 @@ maintainers:
   - Rafał Miłecki <rafal@milecki.pl>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml

@@ -14,7 +14,7 @@ description: |
   unique identifier per part.
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/imx-iim.yaml

@@ -14,7 +14,7 @@ description: |
   i.MX25, i.MX27, i.MX31, i.MX35, i.MX51 and i.MX53 SoCs.
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/imx-ocotp.yaml

@@ -15,7 +15,7 @@ description: |
   i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM, i.MX8MN and i.MX8MP SoCs.
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/ingenic,jz4780-efuse.yaml

@@ -10,7 +10,7 @@ maintainers:
   - PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/layouts/onie,tlv-layout.yaml

@@ -61,7 +61,7 @@ properties:
     type: object
     additionalProperties: false
 
-  platforn-name:
+  platform-name:
     type: object
     additionalProperties: false
 

Documentation/devicetree/bindings/nvmem/mediatek,efuse.yaml

@@ -15,7 +15,7 @@ maintainers:
   - Lala Lin <lala.lin@mediatek.com>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   $nodename:

Documentation/devicetree/bindings/nvmem/microchip,sama7g5-otpc.yaml

@@ -15,7 +15,7 @@ description: |
   settings, chip identifiers) or user specific data could be stored.
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/mxs-ocotp.yaml

@@ -10,7 +10,7 @@ maintainers:
   - Anson Huang <Anson.Huang@nxp.com>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml

@@ -17,7 +17,7 @@ maintainers:
   - Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml

@@ -10,7 +10,7 @@ maintainers:
   - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:
@@ -32,6 +32,8 @@ properties:
           - qcom,sdm670-qfprom
           - qcom,sdm845-qfprom
           - qcom,sm6115-qfprom
+          - qcom,sm6350-qfprom
+          - qcom,sm6375-qfprom
           - qcom,sm8150-qfprom
           - qcom,sm8250-qfprom
       - const: qcom,qfprom

Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml

@@ -15,7 +15,7 @@ description: |
   to/from the PBUS.
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:
@@ -42,11 +42,15 @@ unevaluatedProperties: false
 
 examples:
   - |
+    pmic {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
         sdam_1: nvram@b000 {
+            compatible = "qcom,spmi-sdam";
+            reg = <0xb000>;
             #address-cells = <1>;
             #size-cells = <1>;
-          compatible = "qcom,spmi-sdam";
-          reg = <0xb000 0x100>;
             ranges = <0 0xb000 0x100>;
 
             /* Data cells */
@@ -55,4 +59,5 @@ examples:
                 bits = <6 2>;
             };
         };
+    };
 ...

Documentation/devicetree/bindings/nvmem/rmem.yaml

@@ -10,7 +10,7 @@ maintainers:
   - Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml

@@ -10,7 +10,7 @@ maintainers:
   - Heiko Stuebner <heiko@sntech.de>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/socionext,uniphier-efuse.yaml

@@ -11,7 +11,7 @@ maintainers:
   - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   "#address-cells": true

Documentation/devicetree/bindings/nvmem/st,stm32-romem.yaml

@@ -16,7 +16,7 @@ maintainers:
   - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/sunplus,sp7021-ocotp.yaml

@@ -11,7 +11,7 @@ maintainers:
   - Vincent Shih <vincent.sunplus@gmail.com>
 
 allOf:
-  - $ref: "nvmem.yaml#"
+  - $ref: nvmem.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/nvmem/u-boot,env.yaml

@@ -50,7 +50,11 @@ properties:
 
   ethaddr:
     type: object
-    description: Ethernet interface's MAC address
+    description: Ethernet interfaces base MAC address.
+    properties:
+      "#nvmem-cell-cells":
+        description: The first argument is a MAC address offset.
+        const: 1
 
 additionalProperties: false
 
@@ -72,6 +76,7 @@ examples:
             reg = <0x40000 0x10000>;
 
             mac: ethaddr {
+                #nvmem-cell-cells = <1>;
             };
         };
     };

Documentation/devicetree/bindings/w1/maxim,ds2482.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/w1/maxim,ds2482.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim One wire bus master controller
+
+maintainers:
+  - Stefan Wahren <stefan.wahren@chargebyte.com>
+
+description: |
+  I2C to 1-wire bridges
+
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ds2482-100.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/DS2482-800.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/DS2484.pdf
+
+properties:
+  compatible:
+    enum:
+      - maxim,ds2482
+      - maxim,ds2484
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties:
+  type: object
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      onewire@18 {
+        compatible = "maxim,ds2484";
+        reg = <0x18>;
+      };
+    };

Documentation/driver-api/nvmem.rst

@@ -185,3 +185,18 @@ ex::
 =====================
 
 See Documentation/devicetree/bindings/nvmem/nvmem.txt
+
+8. NVMEM layouts
+================
+
+NVMEM layouts are yet another mechanism to create cells. With the device
+tree binding it is possible to specify simple cells by using an offset
+and a length. Sometimes, the cells doesn't have a static offset, but
+the content is still well defined, e.g. tag-length-values. In this case,
+the NVMEM device content has to be first parsed and the cells need to
+be added accordingly. Layouts let you read the content of the NVMEM device
+and let you add cells dynamically.
+
+Another use case for layouts is the post processing of cells. With layouts,
+it is possible to associate a custom post processing hook to a cell. It
+even possible to add this hook to cells not created by the layout itself.

Documentation/process/magic-number.rst

@@ -72,7 +72,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``

Documentation/translations/it_IT/process/magic-number.rst

@@ -78,7 +78,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``

Documentation/translations/sp_SP/process/magic-number.rst

@@ -77,7 +77,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``

Documentation/translations/zh_CN/process/magic-number.rst

@@ -61,7 +61,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``

Documentation/translations/zh_TW/process/magic-number.rst

@@ -64,7 +64,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``

Documentation/userspace-api/ioctl/ioctl-number.rst

@@ -222,7 +222,6 @@ Code  Seq#    Include File                                           Comments
 'b'   00-FF                                                          conflict! bit3 vme host bridge
                                                                      <mailto:natalia@nikhefk.nikhef.nl>
 'b'   00-0F  linux/dma-buf.h                                         conflict!
-'c'   all    linux/cm4000_cs.h                                       conflict!
 'c'   00-7F  linux/comstats.h                                        conflict!
 'c'   00-7F  linux/coda.h                                            conflict!
 'c'   00-1F  linux/chio.h                                            conflict!

MAINTAINERS

@@ -964,6 +964,14 @@ Q:	https://patchwork.kernel.org/project/linux-rdma/list/
 F:	drivers/infiniband/hw/efa/
 F:	include/uapi/rdma/efa-abi.h
 
+AMD CDX BUS DRIVER
+M:	Nipun Gupta <nipun.gupta@amd.com>
+M:	Nikhil Agarwal <nikhil.agarwal@amd.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/bus/xlnx,versal-net-cdx.yaml
+F:	drivers/cdx/*
+F:	include/linux/cdx/*
+
 AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER
 M:	Tom Lendacky <thomas.lendacky@amd.com>
 M:	John Allen <john.allen@amd.com>
@@ -1431,11 +1439,6 @@ S:	Supported
 F:	drivers/clk/analogbits/*
 F:	include/linux/clk/analogbits*
 
-ANDROID CONFIG FRAGMENTS
-M:	Rob Herring <robh@kernel.org>
-S:	Supported
-F:	kernel/configs/android*
-
 ANDROID DRIVERS
 M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 M:	Arve Hjønnevåg <arve@android.com>
@@ -2095,7 +2098,6 @@ F:	arch/arm/boot/dts/cx92755*
 N:	digicolor
 
 ARM/CORESIGHT FRAMEWORK AND DRIVERS
-M:	Mathieu Poirier <mathieu.poirier@linaro.org>
 M:	Suzuki K Poulose <suzuki.poulose@arm.com>
 R:	Mike Leach <mike.leach@linaro.org>
 R:	Leo Yan <leo.yan@linaro.org>
@@ -10005,6 +10007,13 @@ F:	Documentation/ABI/testing/sysfs-bus-iio-adc-envelope-detector
 F:	Documentation/devicetree/bindings/iio/adc/envelope-detector.yaml
 F:	drivers/iio/adc/envelope-detector.c
 
+IIO LIGHT SENSOR GAIN-TIME-SCALE HELPERS
+M:	Matti Vaittinen <mazziesaccount@gmail.com>
+L:	linux-iio@vger.kernel.org
+S:	Maintained
+F:	drivers/iio/light/gain-time-scale-helper.c
+F:	drivers/iio/light/gain-time-scale-helper.h
+
 IIO MULTIPLEXER
 M:	Peter Rosin <peda@axentia.se>
 L:	linux-iio@vger.kernel.org
@@ -10528,6 +10537,7 @@ F:	drivers/watchdog/mei_wdt.c
 F:	include/linux/mei_aux.h
 F:	include/linux/mei_cl_bus.h
 F:	include/uapi/linux/mei.h
+F:	include/uapi/linux/mei_uuid.h
 F:	include/uapi/linux/uuid.h
 F:	samples/mei/*
 
@@ -15411,18 +15421,6 @@ S:	Maintained
 F:	Documentation/filesystems/omfs.rst
 F:	fs/omfs/
 
-OMNIKEY CARDMAN 4000 DRIVER
-M:	Harald Welte <laforge@gnumonks.org>
-S:	Maintained
-F:	drivers/char/pcmcia/cm4000_cs.c
-F:	include/linux/cm4000_cs.h
-F:	include/uapi/linux/cm4000_cs.h
-
-OMNIKEY CARDMAN 4040 DRIVER
-M:	Harald Welte <laforge@gnumonks.org>
-S:	Maintained
-F:	drivers/char/pcmcia/cm4040_cs.*
-
 OMNIVISION OG01A1B SENSOR DRIVER
 M:	Shawn Tu <shawnx.tu@intel.com>
 L:	linux-media@vger.kernel.org
@@ -15640,6 +15638,12 @@ L:	linux-hwmon@vger.kernel.org
 S:	Maintained
 F:	drivers/hwmon/oxp-sensors.c
 
+ONIE TLV NVMEM LAYOUT DRIVER
+M:	Miquel Raynal <miquel.raynal@bootlin.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/nvmem/layouts/onie,tlv-layout.yaml
+F:	drivers/nvmem/layouts/onie-tlv.c
+
 ONION OMEGA2+ BOARD
 M:	Harvey Hunt <harveyhuntnexus@gmail.com>
 L:	linux-mips@vger.kernel.org
@@ -18203,6 +18207,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/iio/light/bh1750.yaml
 F:	drivers/iio/light/bh1750.c
 
+ROHM BU27034 AMBIENT LIGHT SENSOR DRIVER
+M:	Matti Vaittinen <mazziesaccount@gmail.com>
+L:	linux-iio@vger.kernel.org
+S:	Supported
+F:	drivers/iio/light/rohm-bu27034.c
+
 ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS
 M:	Marek Vasut <marek.vasut+renesas@gmail.com>
 L:	linux-kernel@vger.kernel.org
@@ -18727,11 +18737,6 @@ F:	include/linux/wait.h
 F:	include/uapi/linux/sched.h
 F:	kernel/sched/
 
-SCR24X CHIP CARD INTERFACE DRIVER
-M:	Lubomir Rintel <lkundrak@v3.sk>
-S:	Supported
-F:	drivers/char/pcmcia/scr24x_cs.c
-
 SCSI RDMA PROTOCOL (SRP) INITIATOR
 M:	Bart Van Assche <bvanassche@acm.org>
 L:	linux-rdma@vger.kernel.org
@@ -19310,6 +19315,12 @@ F:	drivers/irqchip/irq-sl28cpld.c
 F:	drivers/pwm/pwm-sl28cpld.c
 F:	drivers/watchdog/sl28cpld_wdt.c
 
+SL28 VPD NVMEM LAYOUT DRIVER
+M:	Michael Walle <michael@walle.cc>
+S:	Maintained
+F:	Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml
+F:	drivers/nvmem/layouts/sl28vpd.c
+
 SLAB ALLOCATOR
 M:	Christoph Lameter <cl@linux.com>
 M:	Pekka Enberg <penberg@kernel.org>
@@ -22566,7 +22577,7 @@ S:	Orphan
 F:	drivers/mmc/host/vub300.c
 
 W1 DALLAS'S 1-WIRE BUS
-M:	Evgeniy Polyakov <zbr@ioremap.net>
+M:	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
 S:	Maintained
 F:	Documentation/devicetree/bindings/w1/
 F:	Documentation/w1/

arch/powerpc/configs/ppc6xx_defconfig

@@ -614,8 +614,6 @@ CONFIG_HW_RANDOM=y
 CONFIG_HW_RANDOM_VIRTIO=m
 CONFIG_NVRAM=y
 CONFIG_DTLK=m
-CONFIG_CARDMAN_4000=m
-CONFIG_CARDMAN_4040=m
 CONFIG_IPWIRELESS=m
 CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_HYDRA=m

drivers/Kconfig

@@ -241,4 +241,6 @@ source "drivers/peci/Kconfig"
 
 source "drivers/hte/Kconfig"
 
+source "drivers/cdx/Kconfig"
+
 endmenu

drivers/Makefile

@@ -194,3 +194,4 @@ obj-$(CONFIG_MOST)		+= most/
 obj-$(CONFIG_PECI)		+= peci/
 obj-$(CONFIG_HTE)		+= hte/
 obj-$(CONFIG_DRM_ACCEL)		+= accel/
+obj-$(CONFIG_CDX_BUS)		+= cdx/

drivers/acpi/bus.c

@@ -810,9 +810,10 @@ static bool acpi_of_modalias(struct acpi_device *adev,
  * @modalias:   Pointer to buffer that modalias value will be copied into
  * @len:	Length of modalias buffer
  *
- * This is a counterpart of of_modalias_node() for struct acpi_device objects.
- * If there is a compatible string for @adev, it will be copied to @modalias
- * with the vendor prefix stripped; otherwise, @default_id will be used.
+ * This is a counterpart of of_alias_from_compatible() for struct acpi_device
+ * objects. If there is a compatible string for @adev, it will be copied to
+ * @modalias with the vendor prefix stripped; otherwise, @default_id will be
+ * used.
  */
 void acpi_set_modalias(struct acpi_device *adev, const char *default_id,
 		       char *modalias, size_t len)

drivers/bus/mhi/ep/main.c

@@ -126,7 +126,7 @@ static int mhi_ep_process_cmd_ring(struct mhi_ep_ring *ring, struct mhi_ring_ele
 
 	/* Check if the channel is supported by the controller */
 	if ((ch_id >= mhi_cntrl->max_chan) || !mhi_cntrl->mhi_chan[ch_id].name) {
-		dev_err(dev, "Channel (%u) not supported!\n", ch_id);
+		dev_dbg(dev, "Channel (%u) not supported!\n", ch_id);
 		return -ENODEV;
 	}
 
@@ -702,7 +702,7 @@ static void mhi_ep_cmd_ring_worker(struct work_struct *work)
 		el = &ring->ring_cache[ring->rd_offset];
 
 		ret = mhi_ep_process_cmd_ring(ring, el);
-		if (ret)
+		if (ret && ret != -ENODEV)
 			dev_err(dev, "Error processing cmd ring element: %zu\n", ring->rd_offset);
 
 		mhi_ep_ring_inc_index(ring);

drivers/bus/mhi/host/boot.c

@@ -391,6 +391,7 @@ void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl)
 {
 	const struct firmware *firmware = NULL;
 	struct device *dev = &mhi_cntrl->mhi_dev->dev;
+	enum mhi_pm_state new_state;
 	const char *fw_name;
 	void *buf;
 	dma_addr_t dma_addr;
@@ -508,7 +509,10 @@ void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl)
 	}
 
 error_fw_load:
-	mhi_cntrl->pm_state = MHI_PM_FW_DL_ERR;
+	write_lock_irq(&mhi_cntrl->pm_lock);
+	new_state = mhi_tryset_pm_state(mhi_cntrl, MHI_PM_FW_DL_ERR);
+	write_unlock_irq(&mhi_cntrl->pm_lock);
+	if (new_state == MHI_PM_FW_DL_ERR)
 		wake_up_all(&mhi_cntrl->state_event);
 }
 
@@ -516,6 +520,7 @@ int mhi_download_amss_image(struct mhi_controller *mhi_cntrl)
 {
 	struct image_info *image_info = mhi_cntrl->fbc_image;
 	struct device *dev = &mhi_cntrl->mhi_dev->dev;
+	enum mhi_pm_state new_state;
 	int ret;
 
 	if (!image_info)
@@ -526,7 +531,10 @@ int mhi_download_amss_image(struct mhi_controller *mhi_cntrl)
 			       &image_info->mhi_buf[image_info->entries - 1]);
 	if (ret) {
 		dev_err(dev, "MHI did not load AMSS, ret:%d\n", ret);
-		mhi_cntrl->pm_state = MHI_PM_FW_DL_ERR;
+		write_lock_irq(&mhi_cntrl->pm_lock);
+		new_state = mhi_tryset_pm_state(mhi_cntrl, MHI_PM_FW_DL_ERR);
+		write_unlock_irq(&mhi_cntrl->pm_lock);
+		if (new_state == MHI_PM_FW_DL_ERR)
 			wake_up_all(&mhi_cntrl->state_event);
 	}
 

drivers/bus/mhi/host/init.c

@@ -516,6 +516,12 @@ int mhi_init_mmio(struct mhi_controller *mhi_cntrl)
 		return -EIO;
 	}
 
+	if (val >= mhi_cntrl->reg_len - (8 * MHI_DEV_WAKE_DB)) {
+		dev_err(dev, "CHDB offset: 0x%x is out of range: 0x%zx\n",
+			val, mhi_cntrl->reg_len - (8 * MHI_DEV_WAKE_DB));
+		return -ERANGE;
+	}
+
 	/* Setup wake db */
 	mhi_cntrl->wake_db = base + val + (8 * MHI_DEV_WAKE_DB);
 	mhi_cntrl->wake_set = false;
@@ -532,6 +538,12 @@ int mhi_init_mmio(struct mhi_controller *mhi_cntrl)
 		return -EIO;
 	}
 
+	if (val >= mhi_cntrl->reg_len - (8 * mhi_cntrl->total_ev_rings)) {
+		dev_err(dev, "ERDB offset: 0x%x is out of range: 0x%zx\n",
+			val, mhi_cntrl->reg_len - (8 * mhi_cntrl->total_ev_rings));
+		return -ERANGE;
+	}
+
 	/* Setup event db address for each ev_ring */
 	mhi_event = mhi_cntrl->mhi_event;
 	for (i = 0; i < mhi_cntrl->total_ev_rings; i++, val += 8, mhi_event++) {
@@ -1100,7 +1112,7 @@ int mhi_prepare_for_power_up(struct mhi_controller *mhi_cntrl)
 	if (bhi_off >= mhi_cntrl->reg_len) {
 		dev_err(dev, "BHI offset: 0x%x is out of range: 0x%zx\n",
 			bhi_off, mhi_cntrl->reg_len);
-		ret = -EINVAL;
+		ret = -ERANGE;
 		goto error_reg_offset;
 	}
 	mhi_cntrl->bhi = mhi_cntrl->regs + bhi_off;
@@ -1117,7 +1129,7 @@ int mhi_prepare_for_power_up(struct mhi_controller *mhi_cntrl)
 			dev_err(dev,
 				"BHIe offset: 0x%x is out of range: 0x%zx\n",
 				bhie_off, mhi_cntrl->reg_len);
-			ret = -EINVAL;
+			ret = -ERANGE;
 			goto error_reg_offset;
 		}
 		mhi_cntrl->bhie = mhi_cntrl->regs + bhie_off;

drivers/bus/mhi/host/main.c

@@ -503,7 +503,7 @@ irqreturn_t mhi_intvec_threaded_handler(int irq_number, void *priv)
 	}
 	write_unlock_irq(&mhi_cntrl->pm_lock);
 
-	if (pm_state != MHI_PM_SYS_ERR_DETECT || ee == mhi_cntrl->ee)
+	if (pm_state != MHI_PM_SYS_ERR_DETECT)
 		goto exit_intvec;
 
 	switch (ee) {
@@ -961,7 +961,9 @@ int mhi_process_ctrl_ev_ring(struct mhi_controller *mhi_cntrl,
 	}
 
 	read_lock_bh(&mhi_cntrl->pm_lock);
-	if (likely(MHI_DB_ACCESS_VALID(mhi_cntrl)))
+
+	/* Ring EV DB only if there is any pending element to process */
+	if (likely(MHI_DB_ACCESS_VALID(mhi_cntrl)) && count)
 		mhi_ring_er_db(mhi_event);
 	read_unlock_bh(&mhi_cntrl->pm_lock);
 
@@ -1031,7 +1033,9 @@ int mhi_process_data_event_ring(struct mhi_controller *mhi_cntrl,
 		count++;
 	}
 	read_lock_bh(&mhi_cntrl->pm_lock);
-	if (likely(MHI_DB_ACCESS_VALID(mhi_cntrl)))
+
+	/* Ring EV DB only if there is any pending element to process */
+	if (likely(MHI_DB_ACCESS_VALID(mhi_cntrl)) && count)
 		mhi_ring_er_db(mhi_event);
 	read_unlock_bh(&mhi_cntrl->pm_lock);
 
@@ -1679,18 +1683,3 @@ void mhi_unprepare_from_transfer(struct mhi_device *mhi_dev)
 	}
 }
 EXPORT_SYMBOL_GPL(mhi_unprepare_from_transfer);
-
-int mhi_poll(struct mhi_device *mhi_dev, u32 budget)
-{
-	struct mhi_controller *mhi_cntrl = mhi_dev->mhi_cntrl;
-	struct mhi_chan *mhi_chan = mhi_dev->dl_chan;
-	struct mhi_event *mhi_event = &mhi_cntrl->mhi_event[mhi_chan->er_index];
-	int ret;
-
-	spin_lock_bh(&mhi_event->lock);
-	ret = mhi_event->process_event(mhi_cntrl, mhi_event, budget);
-	spin_unlock_bh(&mhi_event->lock);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(mhi_poll);

drivers/bus/mhi/host/pci_generic.c

@@ -8,7 +8,6 @@
  * Copyright (C) 2020 Linaro Ltd <loic.poulain@linaro.org>
  */
 
-#include <linux/aer.h>
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/mhi.h>
@@ -344,8 +343,6 @@ static const struct mhi_channel_config mhi_foxconn_sdx55_channels[] = {
 	MHI_CHANNEL_CONFIG_DL(13, "MBIM", 32, 0),
 	MHI_CHANNEL_CONFIG_UL(32, "DUN", 32, 0),
 	MHI_CHANNEL_CONFIG_DL(33, "DUN", 32, 0),
-	MHI_CHANNEL_CONFIG_UL(92, "DUN2", 32, 1),
-	MHI_CHANNEL_CONFIG_DL(93, "DUN2", 32, 1),
 	MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0_MBIM", 128, 2),
 	MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3),
 };
@@ -366,6 +363,15 @@ static const struct mhi_controller_config modem_foxconn_sdx55_config = {
 	.event_cfg = mhi_foxconn_sdx55_events,
 };
 
+static const struct mhi_pci_dev_info mhi_foxconn_sdx24_info = {
+	.name = "foxconn-sdx24",
+	.config = &modem_foxconn_sdx55_config,
+	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
+	.dma_data_width = 32,
+	.mru_default = 32768,
+	.sideband_wake = false,
+};
+
 static const struct mhi_pci_dev_info mhi_foxconn_sdx55_info = {
 	.name = "foxconn-sdx55",
 	.fw = "qcom/sdx55m/sbl1.mbn",
@@ -590,6 +596,15 @@ static const struct pci_device_id mhi_pci_id_table[] = {
 	/* T99W373 (sdx62) */
 	{ PCI_DEVICE(PCI_VENDOR_ID_FOXCONN, 0xe0d9),
 		.driver_data = (kernel_ulong_t) &mhi_foxconn_sdx65_info },
+	/* T99W510 (sdx24), variant 1 */
+	{ PCI_DEVICE(PCI_VENDOR_ID_FOXCONN, 0xe0f0),
+		.driver_data = (kernel_ulong_t) &mhi_foxconn_sdx24_info },
+	/* T99W510 (sdx24), variant 2 */
+	{ PCI_DEVICE(PCI_VENDOR_ID_FOXCONN, 0xe0f1),
+		.driver_data = (kernel_ulong_t) &mhi_foxconn_sdx24_info },
+	/* T99W510 (sdx24), variant 3 */
+	{ PCI_DEVICE(PCI_VENDOR_ID_FOXCONN, 0xe0f2),
+		.driver_data = (kernel_ulong_t) &mhi_foxconn_sdx24_info },
 	/* MV31-W (Cinterion) */
 	{ PCI_DEVICE(PCI_VENDOR_ID_THALES, 0x00b3),
 		.driver_data = (kernel_ulong_t) &mhi_mv31_info },
@@ -903,11 +918,9 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	mhi_pdev->pci_state = pci_store_saved_state(pdev);
 	pci_load_saved_state(pdev, NULL);
 
-	pci_enable_pcie_error_reporting(pdev);
-
 	err = mhi_register_controller(mhi_cntrl, mhi_cntrl_config);
 	if (err)
-		goto err_disable_reporting;
+		return err;
 
 	/* MHI bus does not power up the controller by default */
 	err = mhi_prepare_for_power_up(mhi_cntrl);
@@ -941,8 +954,6 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	mhi_unprepare_after_power_down(mhi_cntrl);
 err_unregister:
 	mhi_unregister_controller(mhi_cntrl);
-err_disable_reporting:
-	pci_disable_pcie_error_reporting(pdev);
 
 	return err;
 }
@@ -965,7 +976,6 @@ static void mhi_pci_remove(struct pci_dev *pdev)
 		pm_runtime_get_noresume(&pdev->dev);
 
 	mhi_unregister_controller(mhi_cntrl);
-	pci_disable_pcie_error_reporting(pdev);
 }
 
 static void mhi_pci_shutdown(struct pci_dev *pdev)

drivers/cdx/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+#
+# CDX bus configuration
+#
+# Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+#
+
+config CDX_BUS
+	bool "CDX Bus driver"
+	depends on OF && ARM64
+	help
+	  Driver to enable Composable DMA Transfer(CDX) Bus. CDX bus
+	  exposes Fabric devices which uses composable DMA IP to the
+	  APU. CDX bus provides a mechanism for scanning and probing
+	  of CDX devices. CDX devices are memory mapped on system bus
+	  for embedded CPUs. CDX bus uses CDX controller and firmware
+	  to scan these CDX devices.
+
+source "drivers/cdx/controller/Kconfig"

drivers/cdx/Makefile

+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for CDX
+#
+# Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+#
+
+obj-$(CONFIG_CDX_BUS) += cdx.o controller/

drivers/cdx/cdx.h

+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Header file for the CDX Bus
+ *
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#ifndef _CDX_H_
+#define _CDX_H_
+
+#include <linux/cdx/cdx_bus.h>
+
+/**
+ * struct cdx_dev_params - CDX device parameters
+ * @cdx: CDX controller associated with the device
+ * @parent: Associated CDX controller
+ * @vendor: Vendor ID for CDX device
+ * @device: Device ID for CDX device
+ * @bus_num: Bus number for this CDX device
+ * @dev_num: Device number for this device
+ * @res: array of MMIO region entries
+ * @res_count: number of valid MMIO regions
+ * @req_id: Requestor ID associated with CDX device
+ */
+struct cdx_dev_params {
+	struct cdx_controller *cdx;
+	u16 vendor;
+	u16 device;
+	u8 bus_num;
+	u8 dev_num;
+	struct resource res[MAX_CDX_DEV_RESOURCES];
+	u8 res_count;
+	u32 req_id;
+};
+
+/**
+ * cdx_register_controller - Register a CDX controller and its ports
+ *		on the CDX bus.
+ * @cdx: The CDX controller to register
+ *
+ * Return: -errno on failure, 0 on success.
+ */
+int cdx_register_controller(struct cdx_controller *cdx);
+
+/**
+ * cdx_unregister_controller - Unregister a CDX controller
+ * @cdx: The CDX controller to unregister
+ */
+void cdx_unregister_controller(struct cdx_controller *cdx);
+
+/**
+ * cdx_device_add - Add a CDX device. This function adds a CDX device
+ *		on the CDX bus as per the device parameters provided
+ *		by caller. It also creates and registers an associated
+ *		Linux generic device.
+ * @dev_params: device parameters associated with the device to be created.
+ *
+ * Return: -errno on failure, 0 on success.
+ */
+int cdx_device_add(struct cdx_dev_params *dev_params);
+
+#endif /* _CDX_H_ */

drivers/cdx/controller/Kconfig

+# SPDX-License-Identifier: GPL-2.0-only
+#
+# CDX controller configuration
+#
+# Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+#
+
+if CDX_BUS
+
+config CDX_CONTROLLER
+	tristate "CDX bus controller"
+	select REMOTEPROC
+	select RPMSG
+	help
+	  CDX controller drives the CDX bus. It interacts with
+	  firmware to get the hardware devices and registers with
+	  the CDX bus. Say Y to enable the CDX hardware driver.
+
+	  If unsure, say N.
+
+config MCDI_LOGGING
+	bool "MCDI Logging for the CDX controller"
+	depends on CDX_CONTROLLER
+	help
+	  Enable MCDI Logging for
+	  the CDX Controller for debug
+	  purpose.
+
+	  If unsure, say N.
+
+endif

drivers/cdx/controller/Makefile

+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for CDX controller drivers
+#
+# Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+#
+
+obj-$(CONFIG_CDX_CONTROLLER) += cdx-controller.o
+cdx-controller-objs := cdx_controller.o cdx_rpmsg.o mcdi.o mcdi_functions.o

drivers/cdx/controller/bitfield.h

+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2013 Solarflare Communications Inc.
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#ifndef CDX_BITFIELD_H
+#define CDX_BITFIELD_H
+
+#include <linux/bitfield.h>
+
+/* Lowest bit numbers and widths */
+#define CDX_DWORD_LBN 0
+#define CDX_DWORD_WIDTH 32
+
+/* Specified attribute (e.g. LBN) of the specified field */
+#define CDX_VAL(field, attribute) field ## _ ## attribute
+/* Low bit number of the specified field */
+#define CDX_LOW_BIT(field) CDX_VAL(field, LBN)
+/* Bit width of the specified field */
+#define CDX_WIDTH(field) CDX_VAL(field, WIDTH)
+/* High bit number of the specified field */
+#define CDX_HIGH_BIT(field) (CDX_LOW_BIT(field) + CDX_WIDTH(field) - 1)
+
+/* A doubleword (i.e. 4 byte) datatype - little-endian in HW */
+struct cdx_dword {
+	__le32 cdx_u32;
+};
+
+/* Value expanders for printk */
+#define CDX_DWORD_VAL(dword)				\
+	((unsigned int)le32_to_cpu((dword).cdx_u32))
+
+/*
+ * Extract bit field portion [low,high) from the 32-bit little-endian
+ * element which contains bits [min,max)
+ */
+#define CDX_DWORD_FIELD(dword, field)					\
+	(FIELD_GET(GENMASK(CDX_HIGH_BIT(field), CDX_LOW_BIT(field)),	\
+		   le32_to_cpu((dword).cdx_u32)))
+
+/*
+ * Creates the portion of the named bit field that lies within the
+ * range [min,max).
+ */
+#define CDX_INSERT_FIELD(field, value)				\
+	(FIELD_PREP(GENMASK(CDX_HIGH_BIT(field),		\
+			    CDX_LOW_BIT(field)), value))
+
+/*
+ * Creates the portion of the named bit fields that lie within the
+ * range [min,max).
+ */
+#define CDX_INSERT_FIELDS(field1, value1,		\
+			  field2, value2,		\
+			  field3, value3,		\
+			  field4, value4,		\
+			  field5, value5,		\
+			  field6, value6,		\
+			  field7, value7)		\
+	(CDX_INSERT_FIELD(field1, (value1)) |		\
+	 CDX_INSERT_FIELD(field2, (value2)) |		\
+	 CDX_INSERT_FIELD(field3, (value3)) |		\
+	 CDX_INSERT_FIELD(field4, (value4)) |		\
+	 CDX_INSERT_FIELD(field5, (value5)) |		\
+	 CDX_INSERT_FIELD(field6, (value6)) |		\
+	 CDX_INSERT_FIELD(field7, (value7)))
+
+#define CDX_POPULATE_DWORD(dword, ...)					\
+	(dword).cdx_u32 = cpu_to_le32(CDX_INSERT_FIELDS(__VA_ARGS__))
+
+/* Populate a dword field with various numbers of arguments */
+#define CDX_POPULATE_DWORD_7 CDX_POPULATE_DWORD
+#define CDX_POPULATE_DWORD_6(dword, ...) \
+	CDX_POPULATE_DWORD_7(dword, CDX_DWORD, 0, __VA_ARGS__)
+#define CDX_POPULATE_DWORD_5(dword, ...) \
+	CDX_POPULATE_DWORD_6(dword, CDX_DWORD, 0, __VA_ARGS__)
+#define CDX_POPULATE_DWORD_4(dword, ...) \
+	CDX_POPULATE_DWORD_5(dword, CDX_DWORD, 0, __VA_ARGS__)
+#define CDX_POPULATE_DWORD_3(dword, ...) \
+	CDX_POPULATE_DWORD_4(dword, CDX_DWORD, 0, __VA_ARGS__)
+#define CDX_POPULATE_DWORD_2(dword, ...) \
+	CDX_POPULATE_DWORD_3(dword, CDX_DWORD, 0, __VA_ARGS__)
+#define CDX_POPULATE_DWORD_1(dword, ...) \
+	CDX_POPULATE_DWORD_2(dword, CDX_DWORD, 0, __VA_ARGS__)
+#define CDX_SET_DWORD(dword) \
+	CDX_POPULATE_DWORD_1(dword, CDX_DWORD, 0xffffffff)
+
+#endif /* CDX_BITFIELD_H */

drivers/cdx/controller/cdx_controller.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * CDX host controller driver for AMD versal-net platform.
+ *
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#include <linux/of_platform.h>
+#include <linux/slab.h>
+#include <linux/cdx/cdx_bus.h>
+
+#include "cdx_controller.h"
+#include "../cdx.h"
+#include "mcdi_functions.h"
+#include "mcdi.h"
+
+static unsigned int cdx_mcdi_rpc_timeout(struct cdx_mcdi *cdx, unsigned int cmd)
+{
+	return MCDI_RPC_TIMEOUT;
+}
+
+static void cdx_mcdi_request(struct cdx_mcdi *cdx,
+			     const struct cdx_dword *hdr, size_t hdr_len,
+			     const struct cdx_dword *sdu, size_t sdu_len)
+{
+	if (cdx_rpmsg_send(cdx, hdr, hdr_len, sdu, sdu_len))
+		dev_err(&cdx->rpdev->dev, "Failed to send rpmsg data\n");
+}
+
+static const struct cdx_mcdi_ops mcdi_ops = {
+	.mcdi_rpc_timeout = cdx_mcdi_rpc_timeout,
+	.mcdi_request = cdx_mcdi_request,
+};
+
+void cdx_rpmsg_post_probe(struct cdx_controller *cdx)
+{
+	/* Register CDX controller with CDX bus driver */
+	if (cdx_register_controller(cdx))
+		dev_err(cdx->dev, "Failed to register CDX controller\n");
+}
+
+void cdx_rpmsg_pre_remove(struct cdx_controller *cdx)
+{
+	cdx_unregister_controller(cdx);
+	cdx_mcdi_wait_for_quiescence(cdx->priv, MCDI_RPC_TIMEOUT);
+}
+
+static int cdx_configure_device(struct cdx_controller *cdx,
+				u8 bus_num, u8 dev_num,
+				struct cdx_device_config *dev_config)
+{
+	int ret = 0;
+
+	switch (dev_config->type) {
+	case CDX_DEV_RESET_CONF:
+		ret = cdx_mcdi_reset_device(cdx->priv, bus_num, dev_num);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int cdx_scan_devices(struct cdx_controller *cdx)
+{
+	struct cdx_mcdi *cdx_mcdi = cdx->priv;
+	u8 bus_num, dev_num, num_cdx_bus;
+	int ret;
+
+	/* MCDI FW Read: Fetch the number of CDX buses on this controller */
+	ret = cdx_mcdi_get_num_buses(cdx_mcdi);
+	if (ret < 0) {
+		dev_err(cdx->dev,
+			"Get number of CDX buses failed: %d\n", ret);
+		return ret;
+	}
+	num_cdx_bus = (u8)ret;
+
+	for (bus_num = 0; bus_num < num_cdx_bus; bus_num++) {
+		u8 num_cdx_dev;
+
+		/* MCDI FW Read: Fetch the number of devices present */
+		ret = cdx_mcdi_get_num_devs(cdx_mcdi, bus_num);
+		if (ret < 0) {
+			dev_err(cdx->dev,
+				"Get devices on CDX bus %d failed: %d\n", bus_num, ret);
+			continue;
+		}
+		num_cdx_dev = (u8)ret;
+
+		for (dev_num = 0; dev_num < num_cdx_dev; dev_num++) {
+			struct cdx_dev_params dev_params;
+
+			/* MCDI FW: Get the device config */
+			ret = cdx_mcdi_get_dev_config(cdx_mcdi, bus_num,
+						      dev_num, &dev_params);
+			if (ret) {
+				dev_err(cdx->dev,
+					"CDX device config get failed for %d(bus):%d(dev), %d\n",
+					bus_num, dev_num, ret);
+				continue;
+			}
+			dev_params.cdx = cdx;
+
+			/* Add the device to the cdx bus */
+			ret = cdx_device_add(&dev_params);
+			if (ret) {
+				dev_err(cdx->dev, "registering cdx dev: %d failed: %d\n",
+					dev_num, ret);
+				continue;
+			}
+
+			dev_dbg(cdx->dev, "CDX dev: %d on cdx bus: %d created\n",
+				dev_num, bus_num);
+		}
+	}
+
+	return 0;
+}
+
+static struct cdx_ops cdx_ops = {
+	.scan		= cdx_scan_devices,
+	.dev_configure	= cdx_configure_device,
+};
+
+static int xlnx_cdx_probe(struct platform_device *pdev)
+{
+	struct cdx_controller *cdx;
+	struct cdx_mcdi *cdx_mcdi;
+	int ret;
+
+	cdx_mcdi = kzalloc(sizeof(*cdx_mcdi), GFP_KERNEL);
+	if (!cdx_mcdi)
+		return -ENOMEM;
+
+	/* Store the MCDI ops */
+	cdx_mcdi->mcdi_ops = &mcdi_ops;
+	/* MCDI FW: Initialize the FW path */
+	ret = cdx_mcdi_init(cdx_mcdi);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "MCDI Initialization failed\n");
+		goto mcdi_init_fail;
+	}
+
+	cdx = kzalloc(sizeof(*cdx), GFP_KERNEL);
+	if (!cdx) {
+		ret = -ENOMEM;
+		goto cdx_alloc_fail;
+	}
+	platform_set_drvdata(pdev, cdx);
+
+	cdx->dev = &pdev->dev;
+	cdx->priv = cdx_mcdi;
+	cdx->ops = &cdx_ops;
+
+	ret = cdx_setup_rpmsg(pdev);
+	if (ret) {
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Failed to register CDX RPMsg transport\n");
+		goto cdx_rpmsg_fail;
+	}
+
+	dev_info(&pdev->dev, "Successfully registered CDX controller with RPMsg as transport\n");
+	return 0;
+
+cdx_rpmsg_fail:
+	kfree(cdx);
+cdx_alloc_fail:
+	cdx_mcdi_finish(cdx_mcdi);
+mcdi_init_fail:
+	kfree(cdx_mcdi);
+
+	return ret;
+}
+
+static int xlnx_cdx_remove(struct platform_device *pdev)
+{
+	struct cdx_controller *cdx = platform_get_drvdata(pdev);
+	struct cdx_mcdi *cdx_mcdi = cdx->priv;
+
+	cdx_destroy_rpmsg(pdev);
+
+	kfree(cdx);
+
+	cdx_mcdi_finish(cdx_mcdi);
+	kfree(cdx_mcdi);
+
+	return 0;
+}
+
+static const struct of_device_id cdx_match_table[] = {
+	{.compatible = "xlnx,versal-net-cdx",},
+	{ },
+};
+
+MODULE_DEVICE_TABLE(of, cdx_match_table);
+
+static struct platform_driver cdx_pdriver = {
+	.driver = {
+		   .name = "cdx-controller",
+		   .pm = NULL,
+		   .of_match_table = cdx_match_table,
+		   },
+	.probe = xlnx_cdx_probe,
+	.remove = xlnx_cdx_remove,
+};
+
+static int __init cdx_controller_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&cdx_pdriver);
+	if (ret)
+		pr_err("platform_driver_register() failed: %d\n", ret);
+
+	return ret;
+}
+
+static void __exit cdx_controller_exit(void)
+{
+	platform_driver_unregister(&cdx_pdriver);
+}
+
+module_init(cdx_controller_init);
+module_exit(cdx_controller_exit);
+
+MODULE_AUTHOR("AMD Inc.");
+MODULE_DESCRIPTION("CDX controller for AMD devices");
+MODULE_LICENSE("GPL");

drivers/cdx/controller/cdx_controller.h

+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Header file for the CDX Controller
+ *
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#ifndef _CDX_CONTROLLER_H_
+#define _CDX_CONTROLLER_H_
+
+#include <linux/cdx/cdx_bus.h>
+#include "mcdi_functions.h"
+
+void cdx_rpmsg_post_probe(struct cdx_controller *cdx);
+
+void cdx_rpmsg_pre_remove(struct cdx_controller *cdx);
+
+int cdx_rpmsg_send(struct cdx_mcdi *cdx_mcdi,
+		   const struct cdx_dword *hdr, size_t hdr_len,
+		   const struct cdx_dword *sdu, size_t sdu_len);
+
+void cdx_rpmsg_read_resp(struct cdx_mcdi *cdx_mcdi,
+			 struct cdx_dword *outbuf, size_t offset,
+			 size_t outlen);
+
+int cdx_setup_rpmsg(struct platform_device *pdev);
+
+void cdx_destroy_rpmsg(struct platform_device *pdev);
+
+#endif /* _CDX_CONT_PRIV_H_ */

drivers/cdx/controller/cdx_rpmsg.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Platform driver for CDX bus.
+ *
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#include <linux/rpmsg.h>
+#include <linux/remoteproc.h>
+#include <linux/of_platform.h>
+#include <linux/cdx/cdx_bus.h>
+#include <linux/module.h>
+
+#include "../cdx.h"
+#include "cdx_controller.h"
+#include "mcdi_functions.h"
+#include "mcdi.h"
+
+static struct rpmsg_device_id cdx_rpmsg_id_table[] = {
+	{ .name = "mcdi_ipc" },
+	{ },
+};
+MODULE_DEVICE_TABLE(rpmsg, cdx_rpmsg_id_table);
+
+int cdx_rpmsg_send(struct cdx_mcdi *cdx_mcdi,
+		   const struct cdx_dword *hdr, size_t hdr_len,
+		   const struct cdx_dword *sdu, size_t sdu_len)
+{
+	unsigned char *send_buf;
+	int ret;
+
+	send_buf = kzalloc(hdr_len + sdu_len, GFP_KERNEL);
+	if (!send_buf)
+		return -ENOMEM;
+
+	memcpy(send_buf, hdr, hdr_len);
+	memcpy(send_buf + hdr_len, sdu, sdu_len);
+
+	ret = rpmsg_send(cdx_mcdi->ept, send_buf, hdr_len + sdu_len);
+	kfree(send_buf);
+
+	return ret;
+}
+
+static int cdx_attach_to_rproc(struct platform_device *pdev)
+{
+	struct device_node *r5_core_node;
+	struct cdx_controller *cdx_c;
+	struct cdx_mcdi *cdx_mcdi;
+	struct device *dev;
+	struct rproc *rp;
+	int ret;
+
+	dev = &pdev->dev;
+	cdx_c = platform_get_drvdata(pdev);
+	cdx_mcdi = cdx_c->priv;
+
+	r5_core_node = of_parse_phandle(dev->of_node, "xlnx,rproc", 0);
+	if (!r5_core_node) {
+		dev_err(&pdev->dev, "xlnx,rproc: invalid phandle\n");
+		return -EINVAL;
+	}
+
+	rp = rproc_get_by_phandle(r5_core_node->phandle);
+	if (!rp) {
+		ret = -EPROBE_DEFER;
+		goto pdev_err;
+	}
+
+	/* Attach to remote processor */
+	ret = rproc_boot(rp);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to attach to remote processor\n");
+		rproc_put(rp);
+		goto pdev_err;
+	}
+
+	cdx_mcdi->r5_rproc = rp;
+pdev_err:
+	of_node_put(r5_core_node);
+	return ret;
+}
+
+static void cdx_detach_to_r5(struct platform_device *pdev)
+{
+	struct cdx_controller *cdx_c;
+	struct cdx_mcdi *cdx_mcdi;
+
+	cdx_c = platform_get_drvdata(pdev);
+	cdx_mcdi = cdx_c->priv;
+
+	rproc_detach(cdx_mcdi->r5_rproc);
+	rproc_put(cdx_mcdi->r5_rproc);
+}
+
+static int cdx_rpmsg_cb(struct rpmsg_device *rpdev, void *data,
+			int len, void *priv, u32 src)
+{
+	struct cdx_controller *cdx_c = dev_get_drvdata(&rpdev->dev);
+	struct cdx_mcdi *cdx_mcdi = cdx_c->priv;
+
+	if (len > MCDI_BUF_LEN)
+		return -EINVAL;
+
+	cdx_mcdi_process_cmd(cdx_mcdi, (struct cdx_dword *)data, len);
+
+	return 0;
+}
+
+static void cdx_rpmsg_post_probe_work(struct work_struct *work)
+{
+	struct cdx_controller *cdx_c;
+	struct cdx_mcdi *cdx_mcdi;
+
+	cdx_mcdi = container_of(work, struct cdx_mcdi, work);
+	cdx_c = dev_get_drvdata(&cdx_mcdi->rpdev->dev);
+	cdx_rpmsg_post_probe(cdx_c);
+}
+
+static int cdx_rpmsg_probe(struct rpmsg_device *rpdev)
+{
+	struct rpmsg_channel_info chinfo = {0};
+	struct cdx_controller *cdx_c;
+	struct cdx_mcdi *cdx_mcdi;
+
+	cdx_c = (struct cdx_controller *)cdx_rpmsg_id_table[0].driver_data;
+	cdx_mcdi = cdx_c->priv;
+
+	chinfo.src = RPMSG_ADDR_ANY;
+	chinfo.dst = rpdev->dst;
+	strscpy(chinfo.name, cdx_rpmsg_id_table[0].name,
+		strlen(cdx_rpmsg_id_table[0].name));
+
+	cdx_mcdi->ept = rpmsg_create_ept(rpdev, cdx_rpmsg_cb, NULL, chinfo);
+	if (!cdx_mcdi->ept) {
+		dev_err_probe(&rpdev->dev, -ENXIO,
+			      "Failed to create ept for channel %s\n",
+			      chinfo.name);
+		return -EINVAL;
+	}
+
+	cdx_mcdi->rpdev = rpdev;
+	dev_set_drvdata(&rpdev->dev, cdx_c);
+
+	schedule_work(&cdx_mcdi->work);
+	return 0;
+}
+
+static void cdx_rpmsg_remove(struct rpmsg_device *rpdev)
+{
+	struct cdx_controller *cdx_c = dev_get_drvdata(&rpdev->dev);
+	struct cdx_mcdi *cdx_mcdi = cdx_c->priv;
+
+	flush_work(&cdx_mcdi->work);
+	cdx_rpmsg_pre_remove(cdx_c);
+
+	rpmsg_destroy_ept(cdx_mcdi->ept);
+	dev_set_drvdata(&rpdev->dev, NULL);
+}
+
+static struct rpmsg_driver cdx_rpmsg_driver = {
+	.drv.name = KBUILD_MODNAME,
+	.id_table = cdx_rpmsg_id_table,
+	.probe = cdx_rpmsg_probe,
+	.remove = cdx_rpmsg_remove,
+	.callback = cdx_rpmsg_cb,
+};
+
+int cdx_setup_rpmsg(struct platform_device *pdev)
+{
+	struct cdx_controller *cdx_c;
+	struct cdx_mcdi *cdx_mcdi;
+	int ret;
+
+	/* Attach to remote processor */
+	ret = cdx_attach_to_rproc(pdev);
+	if (ret)
+		return ret;
+
+	cdx_c = platform_get_drvdata(pdev);
+	cdx_mcdi = cdx_c->priv;
+
+	/* Register RPMsg driver */
+	cdx_rpmsg_id_table[0].driver_data = (kernel_ulong_t)cdx_c;
+
+	INIT_WORK(&cdx_mcdi->work, cdx_rpmsg_post_probe_work);
+	ret = register_rpmsg_driver(&cdx_rpmsg_driver);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Failed to register cdx RPMsg driver: %d\n", ret);
+		cdx_detach_to_r5(pdev);
+	}
+
+	return ret;
+}
+
+void cdx_destroy_rpmsg(struct platform_device *pdev)
+{
+	unregister_rpmsg_driver(&cdx_rpmsg_driver);
+
+	cdx_detach_to_r5(pdev);
+}

drivers/cdx/controller/mcdi.h

+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright 2008-2013 Solarflare Communications Inc.
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#ifndef CDX_MCDI_H
+#define CDX_MCDI_H
+
+#include <linux/mutex.h>
+#include <linux/kref.h>
+#include <linux/rpmsg.h>
+
+#include "bitfield.h"
+#include "mc_cdx_pcol.h"
+
+#ifdef DEBUG
+#define CDX_WARN_ON_ONCE_PARANOID(x) WARN_ON_ONCE(x)
+#define CDX_WARN_ON_PARANOID(x) WARN_ON(x)
+#else
+#define CDX_WARN_ON_ONCE_PARANOID(x) do {} while (0)
+#define CDX_WARN_ON_PARANOID(x) do {} while (0)
+#endif
+
+/**
+ * enum cdx_mcdi_mode - MCDI transaction mode
+ * @MCDI_MODE_EVENTS: wait for an mcdi response callback.
+ * @MCDI_MODE_FAIL: we think MCDI is dead, so fail-fast all calls
+ */
+enum cdx_mcdi_mode {
+	MCDI_MODE_EVENTS,
+	MCDI_MODE_FAIL,
+};
+
+#define MCDI_RPC_TIMEOUT	(10 * HZ)
+#define MCDI_RPC_LONG_TIMEOU	(60 * HZ)
+#define MCDI_RPC_POST_RST_TIME	(10 * HZ)
+
+#define MCDI_BUF_LEN (8 + MCDI_CTL_SDU_LEN_MAX)
+
+/**
+ * enum cdx_mcdi_cmd_state - State for an individual MCDI command
+ * @MCDI_STATE_QUEUED: Command not started and is waiting to run.
+ * @MCDI_STATE_RETRY: Command was submitted and MC rejected with no resources,
+ *	as MC have too many outstanding commands. Command will be retried once
+ *	another command returns.
+ * @MCDI_STATE_RUNNING: Command was accepted and is running.
+ * @MCDI_STATE_RUNNING_CANCELLED: Command is running but the issuer cancelled
+ *	the command.
+ * @MCDI_STATE_FINISHED: Processing of this command has completed.
+ */
+
+enum cdx_mcdi_cmd_state {
+	MCDI_STATE_QUEUED,
+	MCDI_STATE_RETRY,
+	MCDI_STATE_RUNNING,
+	MCDI_STATE_RUNNING_CANCELLED,
+	MCDI_STATE_FINISHED,
+};
+
+/**
+ * struct cdx_mcdi - CDX MCDI Firmware interface, to interact
+ *	with CDX controller.
+ * @mcdi: MCDI interface
+ * @mcdi_ops: MCDI operations
+ * @r5_rproc : R5 Remoteproc device handle
+ * @rpdev: RPMsg device
+ * @ept: RPMsg endpoint
+ * @work: Post probe work
+ */
+struct cdx_mcdi {
+	/* MCDI interface */
+	struct cdx_mcdi_data *mcdi;
+	const struct cdx_mcdi_ops *mcdi_ops;
+
+	struct rproc *r5_rproc;
+	struct rpmsg_device *rpdev;
+	struct rpmsg_endpoint *ept;
+	struct work_struct work;
+};
+
+struct cdx_mcdi_ops {
+	void (*mcdi_request)(struct cdx_mcdi *cdx,
+			     const struct cdx_dword *hdr, size_t hdr_len,
+			     const struct cdx_dword *sdu, size_t sdu_len);
+	unsigned int (*mcdi_rpc_timeout)(struct cdx_mcdi *cdx, unsigned int cmd);
+};
+
+typedef void cdx_mcdi_async_completer(struct cdx_mcdi *cdx,
+				      unsigned long cookie, int rc,
+				      struct cdx_dword *outbuf,
+				      size_t outlen_actual);
+
+/**
+ * struct cdx_mcdi_cmd - An outstanding MCDI command
+ * @ref: Reference count. There will be one reference if the command is
+ *	in the mcdi_iface cmd_list, another if it's on a cleanup list,
+ *	and a third if it's queued in the work queue.
+ * @list: The data for this entry in mcdi->cmd_list
+ * @cleanup_list: The data for this entry in a cleanup list
+ * @work: The work item for this command, queued in mcdi->workqueue
+ * @mcdi: The mcdi_iface for this command
+ * @state: The state of this command
+ * @inlen: inbuf length
+ * @inbuf: Input buffer
+ * @quiet: Whether to silence errors
+ * @reboot_seen: Whether a reboot has been seen during this command,
+ *	to prevent duplicates
+ * @seq: Sequence number
+ * @started: Jiffies this command was started at
+ * @cookie: Context for completion function
+ * @completer: Completion function
+ * @handle: Command handle
+ * @cmd: Command number
+ * @rc: Return code
+ * @outlen: Length of output buffer
+ * @outbuf: Output buffer
+ */
+struct cdx_mcdi_cmd {
+	struct kref ref;
+	struct list_head list;
+	struct list_head cleanup_list;
+	struct work_struct work;
+	struct cdx_mcdi_iface *mcdi;
+	enum cdx_mcdi_cmd_state state;
+	size_t inlen;
+	const struct cdx_dword *inbuf;
+	bool quiet;
+	bool reboot_seen;
+	u8 seq;
+	unsigned long started;
+	unsigned long cookie;
+	cdx_mcdi_async_completer *completer;
+	unsigned int handle;
+	unsigned int cmd;
+	int rc;
+	size_t outlen;
+	struct cdx_dword *outbuf;
+	/* followed by inbuf data if necessary */
+};
+
+/**
+ * struct cdx_mcdi_iface - MCDI protocol context
+ * @cdx: The associated NIC
+ * @iface_lock: Serialise access to this structure
+ * @outstanding_cleanups: Count of cleanups
+ * @cmd_list: List of outstanding and running commands
+ * @workqueue: Workqueue used for delayed processing
+ * @cmd_complete_wq: Waitqueue for command completion
+ * @db_held_by: Command the MC doorbell is in use by
+ * @seq_held_by: Command each sequence number is in use by
+ * @prev_handle: The last used command handle
+ * @mode: Poll for mcdi completion, or wait for an mcdi_event
+ * @prev_seq: The last used sequence number
+ * @new_epoch: Indicates start of day or start of MC reboot recovery
+ * @logging_buffer: Buffer that may be used to build MCDI tracing messages
+ * @logging_enabled: Whether to trace MCDI
+ */
+struct cdx_mcdi_iface {
+	struct cdx_mcdi *cdx;
+	/* Serialise access */
+	struct mutex iface_lock;
+	unsigned int outstanding_cleanups;
+	struct list_head cmd_list;
+	struct workqueue_struct *workqueue;
+	wait_queue_head_t cmd_complete_wq;
+	struct cdx_mcdi_cmd *db_held_by;
+	struct cdx_mcdi_cmd *seq_held_by[16];
+	unsigned int prev_handle;
+	enum cdx_mcdi_mode mode;
+	u8 prev_seq;
+	bool new_epoch;
+#ifdef CONFIG_MCDI_LOGGING
+	bool logging_enabled;
+	char *logging_buffer;
+#endif
+};
+
+/**
+ * struct cdx_mcdi_data - extra state for NICs that implement MCDI
+ * @iface: Interface/protocol state
+ * @fn_flags: Flags for this function, as returned by %MC_CMD_DRV_ATTACH.
+ */
+struct cdx_mcdi_data {
+	struct cdx_mcdi_iface iface;
+	u32 fn_flags;
+};
+
+static inline struct cdx_mcdi_iface *cdx_mcdi_if(struct cdx_mcdi *cdx)
+{
+	return cdx->mcdi ? &cdx->mcdi->iface : NULL;
+}
+
+int cdx_mcdi_init(struct cdx_mcdi *cdx);
+void cdx_mcdi_finish(struct cdx_mcdi *cdx);
+
+void cdx_mcdi_process_cmd(struct cdx_mcdi *cdx, struct cdx_dword *outbuf, int len);
+int cdx_mcdi_rpc(struct cdx_mcdi *cdx, unsigned int cmd,
+		 const struct cdx_dword *inbuf, size_t inlen,
+		 struct cdx_dword *outbuf, size_t outlen, size_t *outlen_actual);
+int cdx_mcdi_rpc_async(struct cdx_mcdi *cdx, unsigned int cmd,
+		       const struct cdx_dword *inbuf, size_t inlen,
+		       cdx_mcdi_async_completer *complete,
+		       unsigned long cookie);
+int cdx_mcdi_wait_for_quiescence(struct cdx_mcdi *cdx,
+				 unsigned int timeout_jiffies);
+
+/*
+ * We expect that 16- and 32-bit fields in MCDI requests and responses
+ * are appropriately aligned, but 64-bit fields are only
+ * 32-bit-aligned.
+ */
+#define MCDI_DECLARE_BUF(_name, _len) struct cdx_dword _name[DIV_ROUND_UP(_len, 4)] = {{0}}
+#define _MCDI_PTR(_buf, _offset)					\
+	((u8 *)(_buf) + (_offset))
+#define MCDI_PTR(_buf, _field)						\
+	_MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST)
+#define _MCDI_CHECK_ALIGN(_ofst, _align)				\
+	((void)BUILD_BUG_ON_ZERO((_ofst) & ((_align) - 1)),		\
+	 (_ofst))
+#define _MCDI_DWORD(_buf, _field)					\
+	((_buf) + (_MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, 4) >> 2))
+
+#define MCDI_BYTE(_buf, _field)						\
+	((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 1),	\
+	 *MCDI_PTR(_buf, _field))
+#define MCDI_WORD(_buf, _field)						\
+	((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2),	\
+	 le16_to_cpu(*(__force const __le16 *)MCDI_PTR(_buf, _field)))
+#define MCDI_SET_DWORD(_buf, _field, _value)				\
+	CDX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), CDX_DWORD, _value)
+#define MCDI_DWORD(_buf, _field)					\
+	CDX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), CDX_DWORD)
+#define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1)		\
+	CDX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field),		\
+			     MC_CMD_ ## _name1, _value1)
+#define MCDI_SET_QWORD(_buf, _field, _value)				\
+	do {								\
+		CDX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0],	\
+				     CDX_DWORD, (u32)(_value));	\
+		CDX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1],	\
+				     CDX_DWORD, (u64)(_value) >> 32);	\
+	} while (0)
+#define MCDI_QWORD(_buf, _field)					\
+	(CDX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], CDX_DWORD) |	\
+	(u64)CDX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], CDX_DWORD) << 32)
+
+#endif /* CDX_MCDI_H */

drivers/cdx/controller/mcdi_functions.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#include <linux/module.h>
+
+#include "mcdi.h"
+#include "mcdi_functions.h"
+
+int cdx_mcdi_get_num_buses(struct cdx_mcdi *cdx)
+{
+	MCDI_DECLARE_BUF(outbuf, MC_CMD_CDX_BUS_ENUM_BUSES_OUT_LEN);
+	size_t outlen;
+	int ret;
+
+	ret = cdx_mcdi_rpc(cdx, MC_CMD_CDX_BUS_ENUM_BUSES, NULL, 0,
+			   outbuf, sizeof(outbuf), &outlen);
+	if (ret)
+		return ret;
+
+	if (outlen != MC_CMD_CDX_BUS_ENUM_BUSES_OUT_LEN)
+		return -EIO;
+
+	return MCDI_DWORD(outbuf, CDX_BUS_ENUM_BUSES_OUT_BUS_COUNT);
+}
+
+int cdx_mcdi_get_num_devs(struct cdx_mcdi *cdx, int bus_num)
+{
+	MCDI_DECLARE_BUF(outbuf, MC_CMD_CDX_BUS_ENUM_DEVICES_OUT_LEN);
+	MCDI_DECLARE_BUF(inbuf, MC_CMD_CDX_BUS_ENUM_DEVICES_IN_LEN);
+	size_t outlen;
+	int ret;
+
+	MCDI_SET_DWORD(inbuf, CDX_BUS_ENUM_DEVICES_IN_BUS, bus_num);
+
+	ret = cdx_mcdi_rpc(cdx, MC_CMD_CDX_BUS_ENUM_DEVICES, inbuf, sizeof(inbuf),
+			   outbuf, sizeof(outbuf), &outlen);
+	if (ret)
+		return ret;
+
+	if (outlen != MC_CMD_CDX_BUS_ENUM_DEVICES_OUT_LEN)
+		return -EIO;
+
+	return MCDI_DWORD(outbuf, CDX_BUS_ENUM_DEVICES_OUT_DEVICE_COUNT);
+}
+
+int cdx_mcdi_get_dev_config(struct cdx_mcdi *cdx,
+			    u8 bus_num, u8 dev_num,
+			    struct cdx_dev_params *dev_params)
+{
+	MCDI_DECLARE_BUF(outbuf, MC_CMD_CDX_BUS_GET_DEVICE_CONFIG_OUT_LEN);
+	MCDI_DECLARE_BUF(inbuf, MC_CMD_CDX_BUS_GET_DEVICE_CONFIG_IN_LEN);
+	struct resource *res = &dev_params->res[0];
+	size_t outlen;
+	u32 req_id;
+	int ret;
+
+	MCDI_SET_DWORD(inbuf, CDX_BUS_GET_DEVICE_CONFIG_IN_BUS, bus_num);
+	MCDI_SET_DWORD(inbuf, CDX_BUS_GET_DEVICE_CONFIG_IN_DEVICE, dev_num);
+
+	ret = cdx_mcdi_rpc(cdx, MC_CMD_CDX_BUS_GET_DEVICE_CONFIG, inbuf, sizeof(inbuf),
+			   outbuf, sizeof(outbuf), &outlen);
+	if (ret)
+		return ret;
+
+	if (outlen != MC_CMD_CDX_BUS_GET_DEVICE_CONFIG_OUT_LEN)
+		return -EIO;
+
+	dev_params->bus_num = bus_num;
+	dev_params->dev_num = dev_num;
+
+	req_id = MCDI_DWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_REQUESTER_ID);
+	dev_params->req_id = req_id;
+
+	dev_params->res_count = 0;
+	if (MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION0_SIZE) != 0) {
+		res[dev_params->res_count].start =
+			MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION0_BASE);
+		res[dev_params->res_count].end =
+			MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION0_BASE) +
+				   MCDI_QWORD(outbuf,
+					      CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION0_SIZE) - 1;
+		res[dev_params->res_count].flags = IORESOURCE_MEM;
+		dev_params->res_count++;
+	}
+
+	if (MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION1_SIZE) != 0) {
+		res[dev_params->res_count].start =
+			MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION1_BASE);
+		res[dev_params->res_count].end =
+			MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION1_BASE) +
+				   MCDI_QWORD(outbuf,
+					      CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION1_SIZE) - 1;
+		res[dev_params->res_count].flags = IORESOURCE_MEM;
+		dev_params->res_count++;
+	}
+
+	if (MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION2_SIZE) != 0) {
+		res[dev_params->res_count].start =
+			MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION2_BASE);
+		res[dev_params->res_count].end =
+			MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION2_BASE) +
+				   MCDI_QWORD(outbuf,
+					      CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION2_SIZE) - 1;
+		res[dev_params->res_count].flags = IORESOURCE_MEM;
+		dev_params->res_count++;
+	}
+
+	if (MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION3_SIZE) != 0) {
+		res[dev_params->res_count].start =
+			MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION3_BASE);
+		res[dev_params->res_count].end =
+			MCDI_QWORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION3_BASE) +
+				   MCDI_QWORD(outbuf,
+					      CDX_BUS_GET_DEVICE_CONFIG_OUT_MMIO_REGION3_SIZE) - 1;
+		res[dev_params->res_count].flags = IORESOURCE_MEM;
+		dev_params->res_count++;
+	}
+
+	dev_params->vendor = MCDI_WORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_VENDOR_ID);
+	dev_params->device = MCDI_WORD(outbuf, CDX_BUS_GET_DEVICE_CONFIG_OUT_DEVICE_ID);
+
+	return 0;
+}
+
+int cdx_mcdi_reset_device(struct cdx_mcdi *cdx, u8 bus_num, u8 dev_num)
+{
+	MCDI_DECLARE_BUF(inbuf, MC_CMD_CDX_DEVICE_RESET_IN_LEN);
+	int ret;
+
+	MCDI_SET_DWORD(inbuf, CDX_DEVICE_RESET_IN_BUS, bus_num);
+	MCDI_SET_DWORD(inbuf, CDX_DEVICE_RESET_IN_DEVICE, dev_num);
+
+	ret = cdx_mcdi_rpc(cdx, MC_CMD_CDX_DEVICE_RESET, inbuf, sizeof(inbuf),
+			   NULL, 0, NULL);
+
+	return ret;
+}

drivers/cdx/controller/mcdi_functions.h

+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Header file for MCDI FW interaction for CDX bus.
+ *
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#ifndef CDX_MCDI_FUNCTIONS_H
+#define CDX_MCDI_FUNCTIONS_H
+
+#include "mcdi.h"
+#include "../cdx.h"
+
+/**
+ * cdx_mcdi_get_num_buses - Get the total number of buses on
+ *	the controller.
+ * @cdx: pointer to MCDI interface.
+ *
+ * Return: total number of buses available on the controller,
+ *	<0 on failure
+ */
+int cdx_mcdi_get_num_buses(struct cdx_mcdi *cdx);
+
+/**
+ * cdx_mcdi_get_num_devs - Get the total number of devices on
+ *	a particular bus of the controller.
+ * @cdx: pointer to MCDI interface.
+ * @bus_num: Bus number.
+ *
+ * Return: total number of devices available on the bus, <0 on failure
+ */
+int cdx_mcdi_get_num_devs(struct cdx_mcdi *cdx, int bus_num);
+
+/**
+ * cdx_mcdi_get_dev_config - Get configuration for a particular
+ *	bus_num:dev_num
+ * @cdx: pointer to MCDI interface.
+ * @bus_num: Bus number.
+ * @dev_num: Device number.
+ * @dev_params: Pointer to cdx_dev_params, this is populated by this
+ *	device with the configuration corresponding to the provided
+ *	bus_num:dev_num.
+ *
+ * Return: 0 total number of devices available on the bus, <0 on failure
+ */
+int cdx_mcdi_get_dev_config(struct cdx_mcdi *cdx,
+			    u8 bus_num, u8 dev_num,
+			    struct cdx_dev_params *dev_params);
+
+/**
+ * cdx_mcdi_reset_device - Reset cdx device represented by bus_num:dev_num
+ * @cdx: pointer to MCDI interface.
+ * @bus_num: Bus number.
+ * @dev_num: Device number.
+ *
+ * Return: 0 on success, <0 on failure
+ */
+int cdx_mcdi_reset_device(struct cdx_mcdi *cdx,
+			  u8 bus_num, u8 dev_num);
+
+#endif /* CDX_MCDI_FUNCTIONS_H */

drivers/char/Kconfig

@@ -247,8 +247,6 @@ config SONYPI
 	  To compile this driver as a module, choose M here: the
 	  module will be called sonypi.
 
-source "drivers/char/pcmcia/Kconfig"
-
 config MWAVE
 	tristate "ACP Modem (Mwave) support"
 	depends on X86 && TTY

drivers/char/Makefile

@@ -35,7 +35,6 @@ obj-$(CONFIG_TELCLOCK)		+= tlclk.o
 
 obj-$(CONFIG_MWAVE)		+= mwave/
 obj-y				+= agp/
-obj-$(CONFIG_PCMCIA)		+= pcmcia/
 
 obj-$(CONFIG_HANGCHECK_TIMER)	+= hangcheck-timer.o
 obj-$(CONFIG_TCG_TPM)		+= tpm/

drivers/char/pcmcia/Kconfig

-# SPDX-License-Identifier: GPL-2.0-only
-#
-# PCMCIA character device configuration
-#
-
-menu "PCMCIA character devices"
-	depends on PCMCIA!=n
-
-config SYNCLINK_CS
-	tristate "SyncLink PC Card support"
-	depends on PCMCIA && TTY
-	help
-	  Enable support for the SyncLink PC Card serial adapter, running
-	  asynchronous and HDLC communications up to 512Kbps. The port is
-	  selectable for RS-232, V.35, RS-449, RS-530, and X.21
-
-	  This driver may be built as a module ( = code which can be
-	  inserted in and removed from the running kernel whenever you want).
-	  The module will be called synclink_cs.  If you want to do that, say M
-	  here.
-
-config CARDMAN_4000
-	tristate "Omnikey Cardman 4000 support"
-	depends on PCMCIA
-	select BITREVERSE
-	help
-	  Enable support for the Omnikey Cardman 4000 PCMCIA Smartcard
-	  reader.
-
-	  This kernel driver requires additional userspace support, either
-	  by the vendor-provided PC/SC ifd_handler (http://www.omnikey.com/),
-	  or via the cm4000 backend of OpenCT (http://www.opensc-project.org/opensc).
-
-config CARDMAN_4040
-	tristate "Omnikey CardMan 4040 support"
-	depends on PCMCIA
-	help
-	  Enable support for the Omnikey CardMan 4040 PCMCIA Smartcard
-	  reader.
-
-	  This card is basically a USB CCID device connected to a FIFO
-	  in I/O space.  To use the kernel driver, you will need either the
-	  PC/SC ifdhandler provided from the Omnikey homepage
-	  (http://www.omnikey.com/), or a current development version of OpenCT
-	  (http://www.opensc-project.org/opensc).
-
-config SCR24X
-	tristate "SCR24x Chip Card Interface support"
-	depends on PCMCIA
-	help
-	  Enable support for the SCR24x PCMCIA Chip Card Interface.
-
-	  To compile this driver as a module, choose M here.
-	  The module will be called scr24x_cs..
-
-	  If unsure say N.
-
-config IPWIRELESS
-	tristate "IPWireless 3G UMTS PCMCIA card support"
-	depends on PCMCIA && NETDEVICES && TTY
-	select PPP
-	help
-	  This is a driver for 3G UMTS PCMCIA card from IPWireless company. In
-	  some countries (for example Czech Republic, T-Mobile ISP) this card
-	  is shipped for service called UMTS 4G.
-
-endmenu
-

drivers/char/pcmcia/Makefile

-# SPDX-License-Identifier: GPL-2.0-only
-#
-# drivers/char/pcmcia/Makefile
-#
-# Makefile for the Linux PCMCIA char device drivers.
-#
-
-obj-$(CONFIG_SYNCLINK_CS) += synclink_cs.o
-obj-$(CONFIG_CARDMAN_4000) += cm4000_cs.o
-obj-$(CONFIG_CARDMAN_4040) += cm4040_cs.o
-obj-$(CONFIG_SCR24X) += scr24x_cs.o

drivers/char/pcmcia/cm4040_cs.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef	_CM4040_H_
-#define	_CM4040_H_
-
-#define	CM_MAX_DEV		4
-
-#define	DEVICE_NAME		"cmx"
-#define	MODULE_NAME		"cm4040_cs"
-
-#define REG_OFFSET_BULK_OUT      0
-#define REG_OFFSET_BULK_IN       0
-#define REG_OFFSET_BUFFER_STATUS 1
-#define REG_OFFSET_SYNC_CONTROL  2
-
-#define BSR_BULK_IN_FULL  0x02
-#define BSR_BULK_OUT_FULL 0x01
-
-#define SCR_HOST_TO_READER_START 0x80
-#define SCR_ABORT                0x40
-#define SCR_EN_NOTIFY            0x20
-#define SCR_ACK_NOTIFY           0x10
-#define SCR_READER_TO_HOST_DONE  0x08
-#define SCR_HOST_TO_READER_DONE  0x04
-#define SCR_PULSE_INTERRUPT      0x02
-#define SCR_POWER_DOWN           0x01
-
-
-#define  CMD_PC_TO_RDR_ICCPOWERON       0x62
-#define  CMD_PC_TO_RDR_GETSLOTSTATUS    0x65
-#define  CMD_PC_TO_RDR_ICCPOWEROFF      0x63
-#define  CMD_PC_TO_RDR_SECURE           0x69
-#define  CMD_PC_TO_RDR_GETPARAMETERS    0x6C
-#define  CMD_PC_TO_RDR_RESETPARAMETERS  0x6D
-#define  CMD_PC_TO_RDR_SETPARAMETERS    0x61
-#define  CMD_PC_TO_RDR_XFRBLOCK         0x6F
-#define  CMD_PC_TO_RDR_ESCAPE           0x6B
-#define  CMD_PC_TO_RDR_ICCCLOCK         0x6E
-#define  CMD_PC_TO_RDR_TEST_SECURE      0x74
-#define  CMD_PC_TO_RDR_OK_SECURE        0x89
-
-
-#define  CMD_RDR_TO_PC_SLOTSTATUS         0x81
-#define  CMD_RDR_TO_PC_DATABLOCK          0x80
-#define  CMD_RDR_TO_PC_PARAMETERS         0x82
-#define  CMD_RDR_TO_PC_ESCAPE             0x83
-#define  CMD_RDR_TO_PC_OK_SECURE          0x89
-
-#endif	/* _CM4040_H_ */

drivers/firmware/dmi-sysfs.c

@@ -304,7 +304,7 @@ static struct attribute *dmi_sysfs_sel_attrs[] = {
 };
 ATTRIBUTE_GROUPS(dmi_sysfs_sel);
 
-static struct kobj_type dmi_system_event_log_ktype = {
+static const struct kobj_type dmi_system_event_log_ktype = {
 	.release = dmi_entry_free,
 	.sysfs_ops = &dmi_sysfs_specialize_attr_ops,
 	.default_groups = dmi_sysfs_sel_groups,
@@ -563,7 +563,7 @@ static void dmi_sysfs_entry_release(struct kobject *kobj)
 	kfree(entry);
 }
 
-static struct kobj_type dmi_sysfs_entry_ktype = {
+static const struct kobj_type dmi_sysfs_entry_ktype = {
 	.release = dmi_sysfs_entry_release,
 	.sysfs_ops = &dmi_sysfs_attr_ops,
 	.default_groups = dmi_sysfs_entry_groups,

drivers/firmware/edd.c

@@ -608,7 +608,7 @@ static void edd_release(struct kobject * kobj)
 	kfree(dev);
 }
 
-static struct kobj_type edd_ktype = {
+static const struct kobj_type edd_ktype = {
 	.release	= edd_release,
 	.sysfs_ops	= &edd_attr_ops,
 };

drivers/firmware/stratix10-svc.c

@@ -1133,8 +1133,8 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev)
 		return ret;
 
 	genpool = svc_create_memory_pool(pdev, sh_memory);
-	if (!genpool)
-		return -ENOMEM;
+	if (IS_ERR(genpool))
+		return PTR_ERR(genpool);
 
 	/* allocate service controller and supporting channel */
 	controller = devm_kzalloc(dev, sizeof(*controller), GFP_KERNEL);

drivers/firmware/xilinx/zynqmp.c

@@ -971,6 +971,39 @@ int zynqmp_pm_fpga_get_status(u32 *value)
 }
 EXPORT_SYMBOL_GPL(zynqmp_pm_fpga_get_status);
 
+/**
+ * zynqmp_pm_fpga_get_config_status - Get the FPGA configuration status.
+ * @value: Buffer to store FPGA configuration status.
+ *
+ * This function provides access to the pmufw to get the FPGA configuration
+ * status
+ *
+ * Return: 0 on success, a negative value on error
+ */
+int zynqmp_pm_fpga_get_config_status(u32 *value)
+{
+	u32 ret_payload[PAYLOAD_ARG_CNT];
+	u32 buf, lower_addr, upper_addr;
+	int ret;
+
+	if (!value)
+		return -EINVAL;
+
+	lower_addr = lower_32_bits((u64)&buf);
+	upper_addr = upper_32_bits((u64)&buf);
+
+	ret = zynqmp_pm_invoke_fn(PM_FPGA_READ,
+				  XILINX_ZYNQMP_PM_FPGA_CONFIG_STAT_OFFSET,
+				  lower_addr, upper_addr,
+				  XILINX_ZYNQMP_PM_FPGA_READ_CONFIG_REG,
+				  ret_payload);
+
+	*value = ret_payload[1];
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_fpga_get_config_status);
+
 /**
  * zynqmp_pm_pinctrl_request - Request Pin from firmware
  * @pin: Pin number to request

drivers/fpga/fpga-bridge.c

@@ -115,7 +115,7 @@ static int fpga_bridge_dev_match(struct device *dev, const void *data)
 /**
  * fpga_bridge_get - get an exclusive reference to an fpga bridge
  * @dev:	parent device that fpga bridge was registered with
- * @info:	fpga manager info
+ * @info:	fpga image specific information
  *
  * Given a device, get an exclusive reference to an fpga bridge.
  *

drivers/fpga/zynqmp-fpga.c

@@ -77,6 +77,26 @@ static enum fpga_mgr_states zynqmp_fpga_ops_state(struct fpga_manager *mgr)
 	return FPGA_MGR_STATE_UNKNOWN;
 }
 
+static ssize_t status_show(struct device *dev,
+			   struct device_attribute *attr, char *buf)
+{
+	u32 status;
+	int ret;
+
+	ret = zynqmp_pm_fpga_get_config_status(&status);
+	if (ret)
+		return ret;
+
+	return sysfs_emit(buf, "0x%x\n", status);
+}
+static DEVICE_ATTR_RO(status);
+
+static struct attribute *zynqmp_fpga_attrs[] = {
+	&dev_attr_status.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(zynqmp_fpga);
+
 static const struct fpga_manager_ops zynqmp_fpga_ops = {
 	.state = zynqmp_fpga_ops_state,
 	.write_init = zynqmp_fpga_ops_write_init,
@@ -113,6 +133,7 @@ static struct platform_driver zynqmp_fpga_driver = {
 	.driver = {
 		.name = "zynqmp_fpga_manager",
 		.of_match_table = of_match_ptr(zynqmp_fpga_of_match),
+		.dev_groups = zynqmp_fpga_groups,
 	},
 };
 

drivers/gpu/drm/drm_mipi_dsi.c

@@ -160,7 +160,7 @@ of_mipi_dsi_device_add(struct mipi_dsi_host *host, struct device_node *node)
 	int ret;
 	u32 reg;
 
-	if (of_modalias_node(node, info.type, sizeof(info.type)) < 0) {
+	if (of_alias_from_compatible(node, info.type, sizeof(info.type)) < 0) {
 		drm_err(host, "modalias failure on %pOF\n", node);
 		return ERR_PTR(-EINVAL);
 	}

drivers/hsi/hsi_core.c

@@ -207,7 +207,7 @@ static void hsi_add_client_from_dt(struct hsi_port *port,
 	if (!cl)
 		return;
 
-	err = of_modalias_node(client, name, sizeof(name));
+	err = of_alias_from_compatible(client, name, sizeof(name));
 	if (err)
 		goto err;
 

drivers/hwtracing/coresight/coresight-etm-perf.c

@@ -901,6 +901,7 @@ int __init etm_perf_init(void)
 	etm_pmu.addr_filters_sync	= etm_addr_filters_sync;
 	etm_pmu.addr_filters_validate	= etm_addr_filters_validate;
 	etm_pmu.nr_addr_filters		= ETM_ADDR_CMP_MAX;
+	etm_pmu.module			= THIS_MODULE;
 
 	ret = perf_pmu_register(&etm_pmu, CORESIGHT_ETM_PMU_NAME, -1);
 	if (ret == 0)