2  * DT idle states parsing code.
12 #define pr_fmt(fmt) "DT idle-states: " fmt
37 	 * pointer of the passed in struct of_device_id array to the idle  in init_state_node()
70 		 * latencies as defined in idle states bindings  in init_state_node()
83 	err = of_property_read_string(state_node, "idle-state-name", &desc);  in init_state_node()
101  * Check that the idle state is uniform across all CPUs in the CPUidle driver
112 	 * Compare idle state phandles for index idx on all CPUs in the  in idle_state_valid()
121 		curr_state_node = of_parse_phandle(cpu_node, "cpu-idle-states",  in idle_state_valid()
136  * dt_init_idle_driver() - Parse the DT idle states and initialize the
137  *			   idle driver states array
138  * @drv:	  Pointer to CPU idle driver to be initialized
140  *		  compatible idle state nodes. The data pointer for each valid
149  * @start_idx:    First idle state index to be initialized
151  * If DT idle states are detected and are valid the state count and states
155  * Return: number of valid DT idle states parsed, <0 on failure
170 	 * We get the idle states for the first logical cpu in the  in dt_init_idle_driver()
179 		state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);  in dt_init_idle_driver()
189 			pr_warn("%pOF idle state not valid, bailing out\n",  in dt_init_idle_driver()
196 			pr_warn("State index reached static CPU idle driver states array size\n");  in dt_init_idle_driver()
203 			pr_err("Parsing idle state node %pOF failed with err %d\n",  in dt_init_idle_driver()
216 	 * Update the driver state count only if some valid DT idle states  in dt_init_idle_driver()
223 	 * Return the number of present and valid DT idle states, which can  in dt_init_idle_driver()
224 	 * also be 0 on platforms with missing DT idle states or legacy DT  in dt_init_idle_driver()
225 	 * configuration predating the DT idle states bindings.  in dt_init_idle_driver()