Merge tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver subsystem updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem updates
  for 6.10-rc1. Nothing major here, just lots of new drivers and updates
  for apis and new hardware types. Included in here are:

   - big IIO driver updates with more devices and drivers added

   - fpga driver updates

   - hyper-v driver updates

   - uio_pruss driver removal, no one uses it, other drivers control the
     same hardware now

   - binder minor updates

   - mhi driver updates

   - excon driver updates

   - counter driver updates

   - accessability driver updates

   - coresight driver updates

   - other hwtracing driver updates

   - nvmem driver updates

   - slimbus driver updates

   - spmi driver updates

   - other smaller misc and char driver updates

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

* tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (319 commits)
  misc: ntsync: mark driver as "broken" to prevent from building
  spmi: pmic-arb: Add multi bus support
  spmi: pmic-arb: Register controller for bus instead of arbiter
  spmi: pmic-arb: Make core resources acquiring a version operation
  spmi: pmic-arb: Make the APID init a version operation
  spmi: pmic-arb: Fix some compile warnings about members not being described
  dt-bindings: spmi: Deprecate qcom,bus-id
  dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
  spmi: pmic-arb: Replace three IS_ERR() calls by null pointer checks in spmi_pmic_arb_probe()
  spmi: hisi-spmi-controller: Do not override device identifier
  dt-bindings: spmi: hisilicon,hisi-spmi-controller: clean up example
  dt-bindings: spmi: hisilicon,hisi-spmi-controller: fix binding references
  spmi: make spmi_bus_type const
  extcon: adc-jack: Document missing struct members
  extcon: realtek: Remove unused of_gpio.h
  extcon: usbc-cros-ec: Convert to platform remove callback returning void
  extcon: usb-gpio: Convert to platform remove callback returning void
  extcon: max77843: Convert to platform remove callback returning void
  extcon: max3355: Convert to platform remove callback returning void
  extcon: intel-mrfld: Convert to platform remove callback returning void
  ...

1 files changed, 96 insertions, 11 deletions

diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h
index a6d79381866e..8099759d7242 100644
--- a/include/linux/iio/backend.h
+++ b/include/linux/iio/backend.h
@@ -4,6 +4,7 @@
 
 #include <linux/types.h>
 
+struct iio_chan_spec;
 struct fwnode_handle;
 struct iio_backend;
 struct device;
@@ -15,12 +16,32 @@ enum iio_backend_data_type {
 	IIO_BACKEND_DATA_TYPE_MAX
 };
 
+enum iio_backend_data_source {
+	IIO_BACKEND_INTERNAL_CONTINUOS_WAVE,
+	IIO_BACKEND_EXTERNAL,
+	IIO_BACKEND_DATA_SOURCE_MAX
+};
+
+/**
+ * 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
+ */
+#define IIO_BACKEND_EX_INFO(_name, _shared, _what) {	\
+	.name = (_name),				\
+	.shared = (_shared),				\
+	.read =  iio_backend_ext_info_get,		\
+	.write = iio_backend_ext_info_set,		\
+	.private = (_what),				\
+}
+
 /**
  * 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;
@@ -28,15 +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.
- * @request_buffer:	Request an IIO buffer.
- * @free_buffer:	Free an IIO buffer.
+ * @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);
@@ -45,10 +89,30 @@ struct iio_backend_ops {
 	int (*chan_disable)(struct iio_backend *back, unsigned int chan);
 	int (*data_format_set)(struct iio_backend *back, unsigned int chan,
 			       const struct iio_backend_data_fmt *data);
+	int (*data_source_set)(struct iio_backend *back, unsigned int chan,
+			       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,
 			    struct iio_buffer *buffer);
+	int (*extend_chan_spec)(struct iio_backend *back,
+				struct iio_chan_spec *chan);
+	int (*ext_info_set)(struct iio_backend *back, uintptr_t private,
+			    const struct iio_chan_spec *chan,
+			    const char *buf, size_t len);
+	int (*ext_info_get)(struct iio_backend *back, uintptr_t private,
+			    const struct iio_chan_spec *chan, char *buf);
 };
 
 int iio_backend_chan_enable(struct iio_backend *back, unsigned int chan);
@@ -56,10 +120,31 @@ int iio_backend_chan_disable(struct iio_backend *back, unsigned int chan);
 int devm_iio_backend_enable(struct device *dev, struct iio_backend *back);
 int iio_backend_data_format_set(struct iio_backend *back, unsigned int chan,
 				const struct iio_backend_data_fmt *data);
+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);
+ssize_t iio_backend_ext_info_set(struct iio_dev *indio_dev, uintptr_t private,
+				 const struct iio_chan_spec *chan,
+				 const char *buf, size_t len);
+ssize_t iio_backend_ext_info_get(struct iio_dev *indio_dev, uintptr_t private,
+				 const struct iio_chan_spec *chan, char *buf);
 
+int iio_backend_extend_chan_spec(struct iio_dev *indio_dev,
+				 struct iio_backend *back,
+				 struct iio_chan_spec *chan);
 void *iio_backend_get_priv(const struct iio_backend *conv);
 struct iio_backend *devm_iio_backend_get(struct device *dev, const char *name);
 struct iio_backend *