linux3.10:pwm:support pwm set voltage by regulator

[firefly-linux-kernel-4.4.55.git] / drivers / regulator / of_regulator.c

diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
old mode 100644 (file)
new mode 100755 (executable)
index 66ca769..a90e3d8
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -16,11 +16,21 @@
 #include <linux/regulator/machine.h>
 #include <linux/regulator/of_regulator.h>
 
+static void set_regulator_state_constraints(struct device_node *np,
+               struct regulator_state *state)
+{
+       of_property_read_u32(np, "regulator-state-uv", &state->uV);
+       of_property_read_u32(np, "regulator-state-mode", &state->mode);
+       state->enabled = of_property_read_bool(np, "regulator-state-enabled");
+       state->disabled = of_property_read_bool(np, "regulator-state-disabled");
+}
+
 static void of_get_regulation_constraints(struct device_node *np,
                                        struct regulator_init_data **init_data)
 {
        const __be32 *min_uV, *max_uV, *uV_offset;
        const __be32 *min_uA, *max_uA, *ramp_delay;
+       struct device_node *state;
        struct regulation_constraints *constraints = &(*init_data)->constraints;
 
        constraints->name = of_get_property(np, "regulator-name", NULL);
@@ -64,6 +74,33 @@ static void of_get_regulation_constraints(struct device_node *np,
        ramp_delay = of_get_property(np, "regulator-ramp-delay", NULL);
        if (ramp_delay)
                constraints->ramp_delay = be32_to_cpu(*ramp_delay);
+       
+       of_property_read_u32(np, "regulator-valid-modes-mask",
+                                       &constraints->valid_modes_mask);
+       of_property_read_u32(np, "regulator-input-uv",
+                                       &constraints->input_uV);
+       of_property_read_u32(np, "regulator-initial-mode",
+                                       &constraints->initial_mode);
+       of_property_read_u32(np, "regulator-initial-state",
+                                       &constraints->initial_state);
+
+       /* regulator state during low power system states */
+       state = of_find_node_by_name(np, "regulator-state-mem");
+       if (state)
+               set_regulator_state_constraints(state,
+                               &constraints->state_mem);
+
+       state = of_find_node_by_name(np, "regulator-state-disk");
+       if (state)
+               set_regulator_state_constraints(state,
+                               &constraints->state_disk);
+
+       state = of_find_node_by_name(np, "regulator-state-standby");
+       if (state)
+               set_regulator_state_constraints(state,
+                               &constraints->state_standby);
+
+       
 }
 
 /**