72 	struct iio_backend *back;  member
82 #define iio_backend_check_op(back, op) ({ \  argument
83 	struct iio_backend *____back = back;				\
92 #define iio_backend_op_call(back, op, args...) ({		\  argument
93 	struct iio_backend *__back = back;			\
103 #define iio_backend_ptr_op_call(back, op, args...) ({		\  argument
104 	struct iio_backend *__back = back;			\
117 #define iio_backend_void_op_call(back, op, args...) {		\  argument
118 	struct iio_backend *__back = back;			\
133 	struct iio_backend *back = file->private_data;  in iio_backend_debugfs_read_reg()  local
138 	ret = iio_backend_op_call(back, debugfs_reg_access,  in iio_backend_debugfs_read_reg()
139 				  back->cached_reg_addr, 0, &val);  in iio_backend_debugfs_read_reg()
152 	struct iio_backend *back = file->private_data;  in iio_backend_debugfs_write_reg()  local
162 	ret = sscanf(buf, "%i %i", &back->cached_reg_addr, &val);  in iio_backend_debugfs_write_reg()
168 		ret = iio_backend_op_call(back, debugfs_reg_access,  in iio_backend_debugfs_write_reg()
169 					  back->cached_reg_addr, val, NULL);  in iio_backend_debugfs_write_reg()
188 	struct iio_backend *back = file->private_data;  in iio_backend_debugfs_read_name()  local
192 	len = scnprintf(name, sizeof(name), "%s\n", back->name);  in iio_backend_debugfs_read_name()
204  * @back: Backend device
207 void iio_backend_debugfs_add(struct iio_backend *back,  in iio_backend_debugfs_add()  argument
216 	if (!back->ops->debugfs_reg_access && !back->name)  in iio_backend_debugfs_add()
219 	snprintf(name, sizeof(name), "backend%d", back->idx);  in iio_backend_debugfs_add()
225 	if (back->ops->debugfs_reg_access)  in iio_backend_debugfs_add()
226 		debugfs_create_file("direct_reg_access", 0600, back_d, back,  in iio_backend_debugfs_add()
229 	if (back->name)  in iio_backend_debugfs_add()
230 		debugfs_create_file("name", 0400, back_d, back,  in iio_backend_debugfs_add()
237  * @back: Backend device
249 ssize_t iio_backend_debugfs_print_chan_status(struct iio_backend *back,  in iio_backend_debugfs_print_chan_status()  argument
256 	return iio_backend_op_call(back, debugfs_print_chan_status, chan, buf,  in iio_backend_debugfs_print_chan_status()
263  * @back: Backend device
269 int iio_backend_chan_enable(struct iio_backend *back, unsigned int chan)  in iio_backend_chan_enable()  argument
271 	return iio_backend_op_call(back, chan_enable, chan);  in iio_backend_chan_enable()
277  * @back: Backend device
283 int iio_backend_chan_disable(struct iio_backend *back, unsigned int chan)  in iio_backend_chan_disable()  argument
285 	return iio_backend_op_call(back, chan_disable, chan);  in iio_backend_chan_disable()
289 static void __iio_backend_disable(void *back)  in __iio_backend_disable()  argument
291 	iio_backend_void_op_call(back, disable);  in __iio_backend_disable()
296  * @back: Backend device
298 void iio_backend_disable(struct iio_backend *back)  in iio_backend_disable()  argument
300 	__iio_backend_disable(back);  in iio_backend_disable()
306  * @back: Backend device
311 int iio_backend_enable(struct iio_backend *back)  in iio_backend_enable()  argument
313 	return iio_backend_op_call(back, enable);  in iio_backend_enable()
320  * @back: Backend device
325 int devm_iio_backend_enable(struct device *dev, struct iio_backend *back)  in devm_iio_backend_enable()  argument
329 	ret = iio_backend_enable(back);  in devm_iio_backend_enable()
333 	return devm_add_action_or_reset(dev, __iio_backend_disable, back);  in devm_iio_backend_enable()
339  * @back: Backend device
349 int iio_backend_data_format_set(struct iio_backend *back, unsigned int chan,  in iio_backend_data_format_set()  argument
355 	return iio_backend_op_call(back, data_format_set, chan, data);  in iio_backend_data_format_set()
361  * @back: Backend device
371 int iio_backend_data_source_set(struct iio_backend *back, unsigned int chan,  in iio_backend_data_source_set()  argument
377 	return iio_backend_op_call(back, data_source_set, chan, data);  in iio_backend_data_source_set()
383  * @back: Backend device
390 int iio_backend_set_sampling_freq(struct iio_backend *back, unsigned int chan,  in iio_backend_set_sampling_freq()  argument
393 	return iio_backend_op_call(back, set_sample_rate, chan, sample_rate_hz);  in iio_backend_set_sampling_freq()
399  * @back: Backend device
409 int iio_backend_test_pattern_set(struct iio_backend *back,  in iio_backend_test_pattern_set()  argument
416 	return iio_backend_op_call(back, test_pattern_set, chan, pattern);  in iio_backend_test_pattern_set()
422  * @back: Backend device
432 int iio_backend_chan_status(struct iio_backend *back, unsigned int chan,  in iio_backend_chan_status()  argument
435 	return iio_backend_op_call(back, chan_status, chan, error);  in iio_backend_chan_status()
441  * @back: Backend device
455 int iio_backend_iodelay_set(struct iio_backend *back, unsigned int lane,  in iio_backend_iodelay_set()  argument
458 	return iio_backend_op_call(back, iodelay_set, lane, taps);  in iio_backend_iodelay_set()
464  * @back: Backend device
473 int iio_backend_data_sample_trigger(struct iio_backend *back,  in iio_backend_data_sample_trigger()  argument
479 	return iio_backend_op_call(back, data_sample_trigger, trigger);  in iio_backend_data_sample_trigger()
487 	iio_backend_void_op_call(pair->back, free_buffer, pair->buffer);  in iio_backend_free_buffer()
493  * @back: Backend device
506 				    struct iio_backend *back,  in devm_iio_backend_request_buffer()  argument
516 	buffer = iio_backend_ptr_op_call(back, request_buffer, indio_dev);  in devm_iio_backend_request_buffer()
521 	pair->back = back;  in devm_iio_backend_request_buffer()
530  * @back:	Backend device
539 int iio_backend_read_raw(struct iio_backend *back,  in iio_backend_read_raw()  argument
543 	return iio_backend_op_call(back, read_raw, chan, val, val2, mask);  in iio_backend_read_raw()
549 	struct iio_backend *back = ERR_PTR(-ENODEV), *iter;  in iio_backend_from_indio_dev_parent()  local
561 			if (!IS_ERR(back)) {  in iio_backend_from_indio_dev_parent()
567 			back = iter;  in iio_backend_from_indio_dev_parent()
571 	return back;  in iio_backend_from_indio_dev_parent()
592 	struct iio_backend *back;  in iio_backend_ext_info_get()  local
601 	back = iio_backend_from_indio_dev_parent(indio_dev->dev.parent);  in iio_backend_ext_info_get()
602 	if (IS_ERR(back))  in iio_backend_ext_info_get()
603 		return PTR_ERR(back);  in iio_backend_ext_info_get()
605 	return iio_backend_op_call(back, ext_info_get, private, chan, buf);  in iio_backend_ext_info_get()
629 	struct iio_backend *back;  in iio_backend_ext_info_set()  local
631 	back = iio_backend_from_indio_dev_parent(indio_dev->dev.parent);  in iio_backend_ext_info_set()
632 	if (IS_ERR(back))  in iio_backend_ext_info_set()
633 		return PTR_ERR(back);  in iio_backend_ext_info_set()
635 	return iio_backend_op_call(back, ext_info_set, private, chan, buf, len);  in iio_backend_ext_info_set()
641  * @back: Backend device
650 int iio_backend_extend_chan_spec(struct iio_backend *back,  in iio_backend_extend_chan_spec()  argument
657 	ret = iio_backend_op_call(back, extend_chan_spec, chan);  in iio_backend_extend_chan_spec()
684 	struct iio_backend *back = arg;  in iio_backend_release()  local
686 	module_put(back->owner);  in iio_backend_release()
689 static int __devm_iio_backend_get(struct device *dev, struct iio_backend *back)  in __devm_iio_backend_get()  argument
700 	if (!try_module_get(back->owner))  in __devm_iio_backend_get()
704 	ret = devm_add_action_or_reset(dev, iio_backend_release, back);  in __devm_iio_backend_get()
708 	link = device_link_add(dev, back->dev, DL_FLAG_AUTOREMOVE_CONSUMER);  in __devm_iio_backend_get()
712 				     dev_name(back->dev));  in __devm_iio_backend_get()
714 	back->frontend_dev = dev;  in __devm_iio_backend_get()
716 	dev_dbg(dev, "Found backend(%s) device\n", dev_name(back->dev));  in __devm_iio_backend_get()
725 	struct iio_backend *back;  in __devm_iio_backend_fwnode_get()  local
745 	list_for_each_entry(back, &iio_back_list, entry) {  in __devm_iio_backend_fwnode_get()
746 		if (!device_match_fwnode(back->dev, fwnode_back))  in __devm_iio_backend_fwnode_get()
750 		ret = __devm_iio_backend_get(dev, back);  in __devm_iio_backend_fwnode_get()
755 			back->idx = index;  in __devm_iio_backend_fwnode_get()
757 		return back;  in __devm_iio_backend_fwnode_get()
815 	struct iio_backend *back;  in __devm_iio_backend_get_from_fwnode_lookup()  local
819 	list_for_each_entry(back, &iio_back_list, entry) {  in __devm_iio_backend_get_from_fwnode_lookup()
820 		if (!device_match_fwnode(back->dev, fwnode))  in __devm_iio_backend_get_from_fwnode_lookup()
823 		ret = __devm_iio_backend_get(dev, back);  in __devm_iio_backend_get_from_fwnode_lookup()
827 		return back;  in __devm_iio_backend_get_from_fwnode_lookup()
836  * @back: Backend device
838 void *iio_backend_get_priv(const struct iio_backend *back)  in iio_backend_get_priv()  argument
840 	return back->priv;  in iio_backend_get_priv()
846 	struct iio_backend *back = arg;  in iio_backend_unregister()  local
849 	list_del(&back->entry);  in iio_backend_unregister()
866 	struct iio_backend *back;  in devm_iio_backend_register()  local
877 	back = devm_kzalloc(dev, sizeof(*back), GFP_KERNEL);  in devm_iio_backend_register()
878 	if (!back)  in devm_iio_backend_register()
881 	back->ops = info->ops;  in devm_iio_backend_register()
882 	back->name = info->name;  in devm_iio_backend_register()
883 	back->owner = dev->driver->owner;  in devm_iio_backend_register()
884 	back->dev = dev;  in devm_iio_backend_register()
885 	back->priv = priv;  in devm_iio_backend_register()
887 		list_add(&back->entry, &iio_back_list);  in devm_iio_backend_register()
889 	return devm_add_action_or_reset(dev, iio_backend_unregister, back);  in devm_iio_backend_register()