drivers/pinctrl/pinmux.c

56 			dev_err(pctldev->dev, "pinmux ops has no name for function%u\n",
68 	if (!map->data.mux.function) {
69 		pr_err("failed to register map %s (%d): no function given\n",
79  *	is either muxed to a different function or used as gpio.
107  *	name that controls its mux function, or the requested GPIO name
165 	 * If there is no kind of request function for the pin we just assume
204  * This function returns a pointer to the previous owner. This is used
234 	 * If there is no kind of request function for the pin we just assume
322 					const char *function)
328 	/* See if this pctldev has this function */
332 		if (!strcmp(function, fname))
352 		dev_err(pctldev->dev, "does not support mux function\n");
356 	ret = pinmux_func_name_to_selector(pctldev, map->data.mux.function);
358 		dev_err(pctldev->dev, "invalid function %s in map table\n",
359 			map->data.mux.function);
367 		dev_err(pctldev->dev, "can't query groups for function %s\n",
368 			map->data.mux.function);
373 			"function %s can't be selected on any group\n",
374 			map->data.mux.function);
382 				"invalid group \"%s\" for function \"%s\"\n",
383 				group, map->data.mux.function);
403 	/* This function is currently unused */
563 			seq_printf(s, "function %s: COULD NOT GET GROUPS\n",
569 		seq_printf(s, "function %d: %s, groups = [ ", func_selector, func);
639 		/* If mux: print function+group claiming the pin */
641 			seq_printf(s, " function %s group %s\n",
660 		map->data.mux.function);
670 	seq_printf(s, "group: %s (%u) function: %s (%u)\n",
713 	/* drop extra spaces between function and group names */
722 		dev_err(pctldev->dev, "invalid function %s in map table\n", fname);
729 		dev_err(pctldev->dev, "no groups for function %d (%s)", fsel, fname);
784  * pinmux_generic_get_function_name() - returns the function name
786  * @selector: function number
792 	struct function_desc *function;
794 	function = radix_tree_lookup(&pctldev->pin_function_tree,
796 	if (!function)
799 	return function->name;
804  * pinmux_generic_get_function_groups() - gets the function groups
806  * @selector: function number
815 	struct function_desc *function;
817 	function = radix_tree_lookup(&pctldev->pin_function_tree,
819 	if (!function) {
820 		dev_err(pctldev->dev, "%s could not find function%i\n",
824 	*groups = function->group_names;
825 	*num_groups = function->num_group_names;
832  * pinmux_generic_get_function() - returns a function based on the number
834  * @selector: function number
839 	struct function_desc *function;
841 	function = radix_tree_lookup(&pctldev->pin_function_tree,
843 	if (!function)
846 	return function;
851  * pinmux_generic_add_function() - adds a function group
853  * @name: name of the function
864 	struct function_desc *function;
876 	function = devm_kzalloc(pctldev->dev, sizeof(*function), GFP_KERNEL);
877 	if (!function)
880 	function->name = name;
881 	function->group_names = groups;
882 	function->num_group_names = num_groups;
883 	function->data = data;
885 	error = radix_tree_insert(&pctldev->pin_function_tree, selector, function);
896  * pinmux_generic_remove_function() - removes a numbered function
898  * @selector: function number
905 	struct function_desc *function;
907 	function = radix_tree_lookup(&pctldev->pin_function_tree,
909 	if (!function)
913 	devm_kfree(pctldev->dev, function);