19 #include <linux/regmap.h>
29 	struct regmap *regmap;  member
43 	struct regmap *regmap;  in of_syscon_register()  local
110 	regmap = regmap_init_mmio(NULL, base, &syscon_config);  in of_syscon_register()
112 	if (IS_ERR(regmap)) {  in of_syscon_register()
113 		pr_err("regmap init failed\n");  in of_syscon_register()
114 		ret = PTR_ERR(regmap);  in of_syscon_register()
126 			ret = regmap_mmio_attach_clk(regmap, clk);  in of_syscon_register()
142 	syscon->regmap = regmap;  in of_syscon_register()
155 	regmap_exit(regmap);  in of_syscon_register()
161 static struct regmap *device_node_get_regmap(struct device_node *np,  in device_node_get_regmap()
186 	return syscon->regmap;  in device_node_get_regmap()
190  * of_syscon_register_regmap() - Register regmap for specified device node
192  * @regmap: Pointer to regmap object
194  * Register an externally created regmap object with syscon for the specified
195  * device tree node. This regmap will then be returned to client drivers using
200 int of_syscon_register_regmap(struct device_node *np, struct regmap *regmap)  in of_syscon_register_regmap()  argument
205 	if (!np || !regmap)  in of_syscon_register_regmap()
221 	syscon->regmap = regmap;  in of_syscon_register_regmap()
224 	/* register the regmap in syscon list */  in of_syscon_register_regmap()
238  * device_node_to_regmap() - Get or create a regmap for specified device node
241  * Get a regmap for the specified device node. If there's not an existing
242  * regmap, then one is instantiated. This function should not be used if the
243  * device node has a custom regmap driver or has resources (clocks, resets) to
246  * Return: regmap ptr on success, negative error code on failure.
248 struct regmap *device_node_to_regmap(struct device_node *np)  in device_node_to_regmap()
255  * syscon_node_to_regmap() - Get or create a regmap for specified syscon device node
258  * Get a regmap for the specified device node. If there's not an existing
259  * regmap, then one is instantiated if the node is a generic "syscon". This
263  * Return: regmap ptr on success, negative error code on failure.
265 struct regmap *syscon_node_to_regmap(struct device_node *np)  in syscon_node_to_regmap()
271 struct regmap *syscon_regmap_lookup_by_compatible(const char *s)  in syscon_regmap_lookup_by_compatible()
274 	struct regmap *regmap;  in syscon_regmap_lookup_by_compatible()  local
280 	regmap = syscon_node_to_regmap(syscon_np);  in syscon_regmap_lookup_by_compatible()
283 	return regmap;  in syscon_regmap_lookup_by_compatible()
287 struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np,  in syscon_regmap_lookup_by_phandle()
291 	struct regmap *regmap;  in syscon_regmap_lookup_by_phandle()  local
301 	regmap = syscon_node_to_regmap(syscon_np);  in syscon_regmap_lookup_by_phandle()
306 	return regmap;  in syscon_regmap_lookup_by_phandle()
310 struct regmap *syscon_regmap_lookup_by_phandle_args(struct device_node *np,  in syscon_regmap_lookup_by_phandle_args()
317 	struct regmap *regmap;  in syscon_regmap_lookup_by_phandle_args()  local
330 	regmap = syscon_node_to_regmap(syscon_np);  in syscon_regmap_lookup_by_phandle_args()
335 	return regmap;  in syscon_regmap_lookup_by_phandle_args()
341  * there is no regmap phandle. In this case, instead of returning -ENODEV,
344 struct regmap *syscon_regmap_lookup_by_phandle_optional(struct device_node *np,  in syscon_regmap_lookup_by_phandle_optional()
347 	struct regmap *regmap;  in syscon_regmap_lookup_by_phandle_optional()  local
349 	regmap = syscon_regmap_lookup_by_phandle(np, property);  in syscon_regmap_lookup_by_phandle_optional()
350 	if (IS_ERR(regmap) && PTR_ERR(regmap) == -ENODEV)  in syscon_regmap_lookup_by_phandle_optional()
353 	return regmap;  in syscon_regmap_lookup_by_phandle_optional()