19 #include <linux/regmap.h>
29 	struct regmap *regmap;  member
43 	struct regmap *regmap;  in of_syscon_register()  local
117 	regmap = regmap_init_mmio(NULL, base, &syscon_config);  in of_syscon_register()
119 	if (IS_ERR(regmap)) {  in of_syscon_register()
120 		pr_err("regmap init failed\n");  in of_syscon_register()
121 		ret = PTR_ERR(regmap);  in of_syscon_register()
133 			ret = regmap_mmio_attach_clk(regmap, clk);  in of_syscon_register()
149 	syscon->regmap = regmap;  in of_syscon_register()
162 	regmap_exit(regmap);  in of_syscon_register()
168 static struct regmap *device_node_get_regmap(struct device_node *np,  in device_node_get_regmap()
193 	return syscon->regmap;  in device_node_get_regmap()
197  * of_syscon_register_regmap() - Register regmap for specified device node
199  * @regmap: Pointer to regmap object
201  * Register an externally created regmap object with syscon for the specified
202  * device tree node. This regmap will then be returned to client drivers using
207 int of_syscon_register_regmap(struct device_node *np, struct regmap *regmap)  in of_syscon_register_regmap()  argument
212 	if (!np || !regmap)  in of_syscon_register_regmap()
228 	syscon->regmap = regmap;  in of_syscon_register_regmap()
231 	/* register the regmap in syscon list */  in of_syscon_register_regmap()
245  * device_node_to_regmap() - Get or create a regmap for specified device node
248  * Get a regmap for the specified device node. If there's not an existing
249  * regmap, then one is instantiated. This function should not be used if the
250  * device node has a custom regmap driver or has resources (clocks, resets) to
253  * Return: regmap ptr on success, negative error code on failure.
255 struct regmap *device_node_to_regmap(struct device_node *np)  in device_node_to_regmap()
262  * syscon_node_to_regmap() - Get or create a regmap for specified syscon device node
265  * Get a regmap for the specified device node. If there's not an existing
266  * regmap, then one is instantiated if the node is a generic "syscon". This
270  * Return: regmap ptr on success, negative error code on failure.
272 struct regmap *syscon_node_to_regmap(struct device_node *np)  in syscon_node_to_regmap()
278 struct regmap *syscon_regmap_lookup_by_compatible(const char *s)  in syscon_regmap_lookup_by_compatible()
281 	struct regmap *regmap;  in syscon_regmap_lookup_by_compatible()  local
287 	regmap = syscon_node_to_regmap(syscon_np);  in syscon_regmap_lookup_by_compatible()
290 	return regmap;  in syscon_regmap_lookup_by_compatible()
294 struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np,  in syscon_regmap_lookup_by_phandle()
298 	struct regmap *regmap;  in syscon_regmap_lookup_by_phandle()  local
308 	regmap = syscon_node_to_regmap(syscon_np);  in syscon_regmap_lookup_by_phandle()
313 	return regmap;  in syscon_regmap_lookup_by_phandle()
317 struct regmap *syscon_regmap_lookup_by_phandle_args(struct device_node *np,  in syscon_regmap_lookup_by_phandle_args()
324 	struct regmap *regmap;  in syscon_regmap_lookup_by_phandle_args()  local
337 	regmap = syscon_node_to_regmap(syscon_np);  in syscon_regmap_lookup_by_phandle_args()
342 	return regmap;  in syscon_regmap_lookup_by_phandle_args()
348  * there is no regmap phandle. In this case, instead of returning -ENODEV,
351 struct regmap *syscon_regmap_lookup_by_phandle_optional(struct device_node *np,  in syscon_regmap_lookup_by_phandle_optional()
354 	struct regmap *regmap;  in syscon_regmap_lookup_by_phandle_optional()  local
356 	regmap = syscon_regmap_lookup_by_phandle(np, property);  in syscon_regmap_lookup_by_phandle_optional()
357 	if (IS_ERR(regmap) && PTR_ERR(regmap) == -ENODEV)  in syscon_regmap_lookup_by_phandle_optional()
360 	return regmap;  in syscon_regmap_lookup_by_phandle_optional()