Merge tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem changes
  for 6.8-rc1.

  Other than lots of binder driver changes (as you can see by the merge
  conflicts) included in here are:

   - lots of iio driver updates and additions

   - spmi driver updates

   - eeprom driver updates

   - firmware driver updates

   - ocxl driver updates

   - mhi driver updates

   - w1 driver updates

   - nvmem driver updates

   - coresight driver updates

   - platform driver remove callback api changes

   - tags.sh script updates

   - bus_type constant marking cleanups

   - lots of other small driver updates

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

* tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (341 commits)
  android: removed duplicate linux/errno
  uio: Fix use-after-free in uio_open
  drivers: soc: xilinx: add check for platform
  firmware: xilinx: Export function to use in other module
  scripts/tags.sh: remove find_sources
  scripts/tags.sh: use -n to test archinclude
  scripts/tags.sh: add local annotation
  scripts/tags.sh: use more portable -path instead of -wholename
  scripts/tags.sh: Update comment (addition of gtags)
  firmware: zynqmp: Convert to platform remove callback returning void
  firmware: turris-mox-rwtm: Convert to platform remove callback returning void
  firmware: stratix10-svc: Convert to platform remove callback returning void
  firmware: stratix10-rsu: Convert to platform remove callback returning void
  firmware: raspberrypi: Convert to platform remove callback returning void
  firmware: qemu_fw_cfg: Convert to platform remove callback returning void
  firmware: mtk-adsp-ipc: Convert to platform remove callback returning void
  firmware: imx-dsp: Convert to platform remove callback returning void
  firmware: coreboot_table: Convert to platform remove callback returning void
  firmware: arm_scpi: Convert to platform remove callback returning void
  firmware: arm_scmi: Convert to platform remove callback returning void
  ...

1 files changed, 78 insertions, 4 deletions

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
index ce7ba634643c..ddec9747436c 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
@@ -4,36 +4,92 @@
 $id: http://devicetree.org/schemas/iio/adc/adi,ad7091r5.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Analog Devices AD7091R5 4-Channel 12-Bit ADC
+title: Analog Devices AD7091R-2/-4/-5/-8 Multi-Channel 12-Bit ADCs
 
 maintainers:
   - Michael Hennerich <michael.hennerich@analog.com>
+  - Marcelo Schmitt <marcelo.schmitt@analog.com>
 
 description: |
-  Analog Devices AD7091R5 4-Channel 12-Bit ADC
+  Analog Devices AD7091R5 4-Channel 12-Bit ADC supporting I2C interface
   https://www.analog.com/media/en/technical-documentation/data-sheets/ad7091r-5.pdf
+  Analog Devices AD7091R-2/AD7091R-4/AD7091R-8 2-/4-/8-Channel 12-Bit ADCs
+  supporting SPI interface
+  https://www.analog.com/media/en/technical-documentation/data-sheets/AD7091R-2_7091R-4_7091R-8.pdf
 
 properties:
   compatible:
     enum:
+      - adi,ad7091r2
+      - adi,ad7091r4
       - adi,ad7091r5
+      - adi,ad7091r8
 
   reg:
     maxItems: 1
 
+  vdd-supply:
+    description:
+      Provide VDD power to the sensor (VDD range is from 2.7V to 5.25V).
+
+  vdrive-supply:
+    description:
+      Determines the voltage level at which the interface logic will operate.
+      The V_drive voltage range is from 1.8V to 5.25V and must not exceed VDD by
+      more than 0.3V.
+
   vref-supply:
     description:
       Phandle to the vref power supply
 
-  interrupts:
+  convst-gpios:
+    description:
+      GPIO connected to the CONVST pin.
+      This logic input is used to initiate conversions on the analog
+      input channels.
     maxItems: 1
 
+  reset-gpios:
+    maxItems: 1
+
+  interrupts:
+    description:
+      Interrupt for signaling when conversion results exceed the high limit for
+      ADC readings or fall below the low limit for them. Interrupt source must
+      be attached to ALERT/BUSY/GPO0 pin.
+    maxItems: 1
 
 required:
   - compatible
   - reg
 
-additionalProperties: false
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+  # AD7091R-2 does not have ALERT/BUSY/GPO pin
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,ad7091r2
+    then:
+      properties:
+        interrupts: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,ad7091r2
+              - adi,ad7091r4
+              - adi,ad7091r8
+    then:
+      required:
+        - convst-gpios
+
+unevaluatedProperties: false
 
 examples:
   - |
@@ -51,4 +107,22 @@ examples:
             interrupt-parent = <&gpio>;
         };
     };
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@0 {
+            compatible = "adi,ad7091r8";
+            reg = <0x0>;
+            spi-max-frequency = <1000000>;
+            vref-supply = <&adc_vref>;
+            convst-gpios = <&gpio 25 GPIO_ACTIVE_LOW>;
+            reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
+            interrupts = <22 IRQ_TYPE_EDGE_FALLING>;
+            interrupt-parent = <&gpio>;
+        };
+    };
 ...