Merge tag 'iio-for-6.10b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: 2nd set of new device support, features and cleanup for 6.10 (take 2)

The usual mixed bag from towards the end of the cycle.
Changes since take 1. Fixed the fixes tag and indeed fixed a rebase I
messed up on the same fix.

New devices support
===================

invensense,icm42600
- Support the ICM-42686-P a high range device going up to 32g and 4000 dps

New features
============

adi,ad7944
- Add support for chain mode in which many ADCs may be daisy chained and
  read out via a single long read.
adi,ad9467/backend library
- Add bus tuning related interfaces.
adi,axi-adc
- Add control for the AXI clock - seems always enabled early in boot for other
  reasons, but the driver should not rely on that..

Cleanups and minor or late breaking fixes
=========================================

Micrsoft/ACPI mount matrix handling.
- Replace several implementations of the Microsoft defined ROTM ACPI
  method with a single one.
multiple drivers
- Don't call the result of wait_for_completion() timeout as it's
  more accurate as time_left.
adi,ad7266
- Stop setting the iio_dev->masklength as it's done by the IIO core and
  should not be set from drivers.
adi,ad799x
- Some checkpatch type fixes.
adi,ad9839
- Ensure compelte MU_CNT1 is written during lock phase.
adi,axi-dac
- Fix inverted parameter.
adi,adis16475
- Drop documentation of non existent sysfs files.
avago,apds9306
- Fix an off by one error that overly restricts the range of persistence
  and adaptive thresholds that the driver accepts.
freescale,mxs-lradc
- Stop setting the iio_dev->masklength as it's done by the IIO core and
  should not be set from drivers.
invensense,timestamp library
- Fix timestamp vs interupt alignment and aovid soms glitches that
  occured when switching sampling frequency.
microchip,mcp3564
- Make use of device_for_each_child_node_scoped() to allow early release
  without manual fwnode_handle_put().
microchip,mcp9600
- Allow for negative temperatures.
microchip,pac1934
- Avoid an out of bounds array index.
richtek,rtq6056
- Use iio_device_claim_direct_scoped() to automate lock release and simplify
  the code.
sensortek,stk3110
- Drop a likely incorrect ACPI ID. No known users of this ID and it's
  not a valid ACPI ID.
ti,ads1015
- Make use of device_for_each_child_node_scoped() to allow early release
  without manual fwnode_handle_put().

* tag 'iio-for-6.10b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (41 commits)
  iio: temperature: mcp9600: Fix temperature reading for negative values
  iio: adc: PAC1934: fix accessing out of bounds array index
  iio: invensense: fix timestamp glitches when switching frequency
  iio: invensense: fix interrupt timestamp alignment
  iio: dac: ad9739a: write complete MU_CNT1 register during lock
  iio: pressure: zpa2326: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: twl6030-gpadc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: stm32-dfsdm-adc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: stm32-adc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: intel_mrfld_adc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: fsl-imx25-gcq: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: exynos_adc: use 'time_left' variable with wait_for_completion_timeout()
  iio: adc: ad_sigma_delta: use 'time_left' variable with wait_for_completion_timeout()
  iio: adc: ti-ads1015: use device_for_each_child_node_scoped()
  iio: adc: ad799x: Prefer to use octal permission
  iio: adc: ad799x: add blank line to avoid warning messages
  iio: adc: ad799x: change 'unsigned' to 'unsigned int' declaration
  iio: adc: mcp3564: Use device_for_each_child_node_scoped()
  iio: adc: ad9467: support digital interface calibration
  iio: adc: adi-axi-adc: support digital interface calibration
  ...

3 files changed, 69 insertions, 21 deletions

diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h
index 9d144631134d..8099759d7242 100644
--- a/include/linux/iio/backend.h
+++ b/include/linux/iio/backend.h
@@ -24,9 +24,9 @@ enum iio_backend_data_source {
 
 /**
  * IIO_BACKEND_EX_INFO - Helper for an IIO extended channel attribute
- * @_name:	Attribute name
- * @_shared:	Whether the attribute is shared between all channels
- * @_what:	Data private to the driver
+ * @_name: Attribute name
+ * @_shared: Whether the attribute is shared between all channels
+ * @_what: Data private to the driver
  */
 #define IIO_BACKEND_EX_INFO(_name, _shared, _what) {	\
 	.name = (_name),				\
@@ -38,10 +38,10 @@ enum iio_backend_data_source {
 
 /**
  * struct iio_backend_data_fmt - Backend data format
- * @type:		Data type.
- * @sign_extend:	Bool to tell if the data is sign extended.
- * @enable:		Enable/Disable the data format module. If disabled,
- *			not formatting will happen.
+ * @type: Data type.
+ * @sign_extend: Bool to tell if the data is sign extended.
+ * @enable: Enable/Disable the data format module. If disabled,
+ *	    not formatting will happen.
  */
 struct iio_backend_data_fmt {
 	enum iio_backend_data_type type;
@@ -49,20 +49,38 @@ struct iio_backend_data_fmt {
 	bool enable;
 };
 
+/* vendor specific from 32 */
+enum iio_backend_test_pattern {
+	IIO_BACKEND_NO_TEST_PATTERN,
+	/* modified prbs9 */
+	IIO_BACKEND_ADI_PRBS_9A = 32,
+	IIO_BACKEND_TEST_PATTERN_MAX
+};
+
+enum iio_backend_sample_trigger {
+	IIO_BACKEND_SAMPLE_TRIGGER_EDGE_FALLING,
+	IIO_BACKEND_SAMPLE_TRIGGER_EDGE_RISING,
+	IIO_BACKEND_SAMPLE_TRIGGER_MAX
+};
+
 /**
  * struct iio_backend_ops - operations structure for an iio_backend
- * @enable:		Enable backend.
- * @disable:		Disable backend.
- * @chan_enable:	Enable one channel.
- * @chan_disable:	Disable one channel.
- * @data_format_set:	Configure the data format for a specific channel.
- * @data_source_set:	Configure the data source for a specific channel.
- * @set_sample_rate:	Configure the sampling rate for a specific channel.
- * @request_buffer:	Request an IIO buffer.
- * @free_buffer:	Free an IIO buffer.
- * @extend_chan_spec:	Extend an IIO channel.
- * @ext_info_set:	Extended info setter.
- * @ext_info_get:	Extended info getter.
+ * @enable: Enable backend.
+ * @disable: Disable backend.
+ * @chan_enable: Enable one channel.
+ * @chan_disable: Disable one channel.
+ * @data_format_set: Configure the data format for a specific channel.
+ * @data_source_set: Configure the data source for a specific channel.
+ * @set_sample_rate: Configure the sampling rate for a specific channel.
+ * @test_pattern_set: Configure a test pattern.
+ * @chan_status: Get the channel status.
+ * @iodelay_set: Set digital I/O delay.
+ * @data_sample_trigger: Control when to sample data.
+ * @request_buffer: Request an IIO buffer.
+ * @free_buffer: Free an IIO buffer.
+ * @extend_chan_spec: Extend an IIO channel.
+ * @ext_info_set: Extended info setter.
+ * @ext_info_get: Extended info getter.
  **/
 struct iio_backend_ops {
 	int (*enable)(struct iio_backend *back);
@@ -75,6 +93,15 @@ struct iio_backend_ops {
 			       enum iio_backend_data_source data);
 	int (*set_sample_rate)(struct iio_backend *back, unsigned int chan,
 			       u64 sample_rate_hz);
+	int (*test_pattern_set)(struct iio_backend *back,
+				unsigned int chan,
+				enum iio_backend_test_pattern pattern);
+	int (*chan_status)(struct iio_backend *back, unsigned int chan,
+			   bool *error);
+	int (*iodelay_set)(struct iio_backend *back, unsigned int chan,
+			   unsigned int taps);
+	int (*data_sample_trigger)(struct iio_backend *back,
+				   enum iio_backend_sample_trigger trigger);
 	struct iio_buffer *(*request_buffer)(struct iio_backend *back,
 					     struct iio_dev *indio_dev);
 	void (*free_buffer)(struct iio_backend *back,
@@ -97,6 +124,15 @@ int iio_backend_data_source_set(struct iio_backend *back, unsigned int chan,
 				enum iio_backend_data_source data);
 int iio_backend_set_sampling_freq(struct iio_backend *back, unsigned int chan,
 				  u64 sample_rate_hz);
+int iio_backend_test_pattern_set(struct iio_backend *back,
+				 unsigned int chan,
+				 enum iio_backend_test_pattern pattern);
+int iio_backend_chan_status(struct iio_backend *back, unsigned int chan,
+			    bool *error);
+int iio_backend_iodelay_set(struct iio_backend *back, unsigned int lane,
+			    unsigned int taps);
+int iio_backend_data_sample_trigger(struct iio_backend *back,
+				    enum iio_backend_sample_trigger trigger);
 int devm_iio_backend_request_buffer(struct device *dev,
 				    struct iio_backend *back,
 				    struct iio_dev *indio_dev);
diff --git a/include/linux/iio/common/inv_sensors_timestamp.h b/include/linux/iio/common/inv_sensors_timestamp.h
index a47d304d1ba7..8d506f1e9df2 100644
--- a/include/linux/iio/common/inv_sensors_timestamp.h
+++ b/include/linux/iio/common/inv_sensors_timestamp.h
@@ -71,8 +71,7 @@ int inv_sensors_timestamp_update_odr(struct inv_sensors_timestamp *ts,
 				     uint32_t period, bool fifo);
 
 void inv_sensors_timestamp_interrupt(struct inv_sensors_timestamp *ts,
-				     uint32_t fifo_period, size_t fifo_nb,
-				     size_t sensor_nb, int64_t timestamp);
+				     size_t sample_nb, int64_t timestamp);
 
 static inline int64_t inv_sensors_timestamp_pop(struct inv_sensors_timestamp *ts)
 {
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index e370a7bb3300..55e2b22086a1 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -788,6 +788,19 @@ static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev)
 }
 #endif
 
+#ifdef CONFIG_ACPI
+bool iio_read_acpi_mount_matrix(struct device *dev,
+				struct iio_mount_matrix *orientation,
+				char *acpi_method);
+#else
+static inline bool iio_read_acpi_mount_matrix(struct device *dev,
+					      struct iio_mount_matrix *orientation,
+					      char *acpi_method)
+{
+	return false;
+}
+#endif
+
 ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals);
 
 int iio_str_to_fixpoint(const char *str, int fract_mult, int *integer,