Merge tag 'iio-for-5.20b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

2nd set of IIO new device support, cleanup etc for 5.20

Given the slight delay in the likely start of the merge cycle lets get
a few more things in for IIO.  A few late breaking fixes also included.
Bulk in number of patches is mechanical conversion to new PM macros.

New device support
* npcm
  - Add support for NPCM8XX with different resolution and voltage references
    from previously supported parts.

Tree wide
* pm_ptr()/pm_sleep_ptr()/DEFINE_[SIMPLE/RUNTIME]_DEV_PM_OPS() conversions
  - Convert all the low hanging fruit to the new macros. The remaining
    cases will need more careful consideration.

Tidy-up, fixes and minor features.
* Documentation
  - Fix duplicate ABI definitions and a missing blank line to squash all
    remaining docs build issues in IIO.
* core
  - Make iio_format_avail_range() handle non IIO_VAL_INT cases.
* core/trigger
  - Move the setup of trigger->owner to allocation rather than registration.
    There doesn't seem to be any advantage in doing this late and a few bugs
    have occurred because of mis-balanced module reference counting.
  - coding style fix-ups.
* tests
  - Allow kunit tests to be built as a module.
* ad7949
  - Fix a reversed error message.
* cio-dac
  - Use structures for register map to improve readability.
* cros_ec
  - Register fifo callback only after the sensor is registered. Closes
    a theoretical race.
* hmc5843
  - Duplicate word fix.
* isl29028
  - Fix mixed devm_ and non devm_ for iio_device_register().
* max1027
  - Fix missing unlocks in error paths.
* rm3100
  - Let core code handle setting INDIO_BUFFER_TRIGGERED.
* sca3000
  - Fix ordering and buffer size issue.
* sx_common
  - Don't use the IIO device to get device properties when the parent struct
    device is readily available.
  - Allow the IIO core to connect up the firmware node.
* stx104
  - Use structures for register map to improve readability.
* vf610-adc
  - Add compatible entries for imx6ul and imx6sx with fallback to
    fsl,vf610-adc.

* tag 'iio-for-5.20b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (65 commits)
  dt-bindings: iio: adc: Add compatible for MT8188
  iio: light: isl29028: Fix the warning in isl29028_remove()
  iio: accel: sca3300: Extend the trigger buffer from 16 to 32 bytes
  iio: fix iio_format_avail_range() printing for none IIO_VAL_INT
  iio: adc: max1027: unlock on error path in max1027_read_single_value()
  iio: proximity: sx9324: add empty line in front of bullet list
  iio: magnetometer: hmc5843: Remove duplicate 'the'
  iio: magn: yas530: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: magnetometer: ak8974: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: light: veml6030: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: light: vcnl4035: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: light: vcnl4000: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: light: tsl2591: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr()
  iio: light: tsl2583: Use DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr()
  iio: light: isl29028: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr()
  iio: light: gp2ap002: Switch to DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr()
  iio: adc: imx8qxp: Switch to DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr()
  iio: light: us5182: Switch from CONFIG_PM guards to pm_ptr() etc
  iio: temperature: ltc2983: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  iio: proximity: cros_ec_mkbp: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  ...

Author: gregkh

Documentation/ABI/testing/sysfs-bus-iio

@@ -107,6 +107,9 @@ Description:
 		relevant directories.  If it affects all of the above
 		then it is to be found in the base device directory.
 
+		The stm32-timer-trigger has the additional characteristic that
+		a sampling_frequency of 0 is defined to stop sampling.
+
 What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available

Documentation/ABI/testing/sysfs-bus-iio-sx9324

@@ -5,6 +5,7 @@ Contact:	Gwendal Grignou <gwendal@chromium.org>
 Description:
 		SX9324 has 3 inputs, CS0, CS1 and CS2. Hardware layout
 		defines if the input is
+
 		+ not connected (HZ),
 		+ grounded (GD),
 		+ connected to an antenna where it can act as a base

Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856

@@ -0,0 +1,18 @@
+What:		/sys/bus/iio/devices/iio:deviceX/fault_ovuv
+KernelVersion:	5.1
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Overvoltage or Undervoltage Input Fault. The internal circuitry
+		is protected from excessive voltages applied to the thermocouple
+		cables. The device can also detect if such a condition occurs.
+
+		Reading returns '1' if input voltage is negative or greater
+		than VDD, otherwise '0'.
+
+What:		/sys/bus/iio/devices/iio:deviceX/fault_oc
+KernelVersion:	5.1
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Open-circuit fault. The detection of open-circuit faults,
+		such as those caused by broken thermocouple wires.
+		Reading returns '1' if fault, '0' otherwise.

Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865

@@ -90,14 +90,6 @@ Description:
 		Reading returns the current master modes.
 		Writing set the master mode
 
-What:		/sys/bus/iio/devices/triggerX/sampling_frequency
-KernelVersion:	4.11
-Contact:	benjamin.gaignard@st.com
-Description:
-		Reading returns the current sampling frequency.
-		Writing an value different of 0 set and start sampling.
-		Writing 0 stop sampling.
-
 What:		/sys/bus/iio/devices/iio:deviceX/in_count0_preset
 KernelVersion:	4.12
 Contact:	benjamin.gaignard@st.com

Documentation/ABI/testing/sysfs-bus-iio-thermocouple

@@ -14,7 +14,14 @@ description:
 
 properties:
   compatible:
-    const: fsl,vf610-adc
+    oneOf:
+      - items:
+          - enum:
+              - fsl,imx6sx-adc
+              - fsl,imx6ul-adc
+          - const: fsl,vf610-adc
+      - items:
+          - const: fsl,vf610-adc
 
   reg:
     maxItems: 1

Documentation/ABI/testing/sysfs-bus-iio-timer-stm32

@@ -35,6 +35,7 @@ properties:
           - enum:
               - mediatek,mt8183-auxadc
               - mediatek,mt8186-auxadc
+              - mediatek,mt8188-auxadc
               - mediatek,mt8195-auxadc
               - mediatek,mt8516-auxadc
           - const: mediatek,mt8173-auxadc

Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml

@@ -10,11 +10,14 @@ maintainers:
   - Tomer Maimon <tmaimon77@gmail.com>
 
 description:
-  The NPCM ADC is a 10-bit converter for eight channel inputs.
+  The NPCM7XX ADC is a 10-bit converter and NPCM8XX ADC is a 12-bit converter,
+  both have eight channel inputs.
 
 properties:
   compatible:
-    const: nuvoton,npcm750-adc
+    enum:
+      - nuvoton,npcm750-adc
+      - nuvoton,npcm845-adc
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml

@@ -289,20 +289,20 @@ static int bma220_probe(struct spi_device *spi)
 	return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
-static __maybe_unused int bma220_suspend(struct device *dev)
+static int bma220_suspend(struct device *dev)
 {
 	struct spi_device *spi = to_spi_device(dev);
 
 	return bma220_power(spi, false);
 }
 
-static __maybe_unused int bma220_resume(struct device *dev)
+static int bma220_resume(struct device *dev)
 {
 	struct spi_device *spi = to_spi_device(dev);
 
 	return bma220_power(spi, true);
 }
-static SIMPLE_DEV_PM_OPS(bma220_pm_ops, bma220_suspend, bma220_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(bma220_pm_ops, bma220_suspend, bma220_resume);
 
 static const struct spi_device_id bma220_spi_id[] = {
 	{"bma220", 0},
@@ -318,7 +318,7 @@ MODULE_DEVICE_TABLE(spi, bma220_spi_id);
 static struct spi_driver bma220_driver = {
 	.driver = {
 		.name = "bma220_spi",
-		.pm = &bma220_pm_ops,
+		.pm = pm_sleep_ptr(&bma220_pm_ops),
 		.acpi_match_table = bma220_acpi_id,
 	},
 	.probe =            bma220_probe,