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-rw-r--r--include/regulator.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/regulator.h b/include/regulator.h
index cd1d3cc..156acb8 100644
--- a/include/regulator.h
+++ b/include/regulator.h
@@ -4,6 +4,35 @@
/* struct regulator is an opaque object for consumers */
struct regulator;
+/**
+ * struct regulator_desc - Static regulator descriptor
+ *
+ * Each regulator registered with the core is described with a
+ * structure of this type and a struct regulator_config. This
+ * structure contains the non-varying parts of the regulator
+ * description.
+ *
+ * @n_voltages: Number of selectors available for ops.list_voltage().
+ * @ops: Regulator operations table.
+ *
+ * @min_uV: Voltage given by the lowest selector (if linear mapping)
+ * @uV_step: Voltage increase with each selector (if linear mapping)
+ * @linear_min_sel: Minimal selector for starting linear mapping
+ *
+ * @vsel_reg: Register for selector when using regulator_regmap_X_voltage_
+ * @vsel_mask: Mask for register bitfield used for selector
+ * @apply_reg: Register for initiate voltage change on the output when
+ * using regulator_set_voltage_sel_regmap
+ * @apply_bit: Register bitfield used for initiate voltage change on the
+ * output when using regulator_set_voltage_sel_regmap
+ * @enable_reg: Register for control when using regmap enable/disable ops
+ * @enable_mask: Mask for control when using regmap enable/disable ops
+ * @enable_val: Enabling value for control when using regmap enable/disable ops
+ * @disable_val: Disabling value for control when using regmap enable/disable ops
+ * @enable_is_inverted: A flag to indicate set enable_mask bits to disable
+ * when using regulator_enable_regmap and friends APIs.
+ */
+
struct regulator_desc {
unsigned n_voltages;
const struct regulator_ops *ops;
@@ -21,6 +50,9 @@ struct regulator_desc {
unsigned int enable_val;
unsigned int disable_val;
bool enable_is_inverted;
+
+ const struct regulator_linear_range *linear_ranges;
+ int n_linear_ranges;
};
struct regulator_dev {
@@ -37,8 +69,36 @@ struct regulator_ops {
int (*list_voltage) (struct regulator_dev *, unsigned int);
int (*set_voltage_sel) (struct regulator_dev *, unsigned int);
+ int (*map_voltage)(struct regulator_dev *, int min_uV, int max_uV);
+};
+
+/*
+ * struct regulator_linear_range - specify linear voltage ranges
+ *
+ * Specify a range of voltages for regulator_map_linear_range() and
+ * regulator_list_linear_range().
+ *
+ * @min_uV: Lowest voltage in range
+ * @min_sel: Lowest selector for range
+ * @max_sel: Highest selector for range
+ * @uV_step: Step size
+ */
+struct regulator_linear_range {
+ unsigned int min_uV;
+ unsigned int min_sel;
+ unsigned int max_sel;
+ unsigned int uV_step;
};
+/* Initialize struct regulator_linear_range */
+#define REGULATOR_LINEAR_RANGE(_min_uV, _min_sel, _max_sel, _step_uV) \
+{ \
+ .min_uV = _min_uV, \
+ .min_sel = _min_sel, \
+ .max_sel = _max_sel, \
+ .uV_step = _step_uV, \
+}
+
#ifdef CONFIG_OFDEVICE
int of_regulator_register(struct regulator_dev *rd, struct device_node *node);
#else
@@ -65,8 +125,22 @@ int regulator_set_voltage_sel_regmap(struct regulator_dev *, unsigned);
int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
int regulator_map_voltage_linear(struct regulator_dev *rdev,
int min_uV, int max_uV);
+int regulator_map_voltage_linear_range(struct regulator_dev *rdev,
+ int min_uV, int max_uV);
int regulator_list_voltage_linear(struct regulator_dev *rdev,
unsigned int selector);
+int regulator_list_voltage_linear_range(struct regulator_dev *rdev,
+ unsigned int selector);
+int regulator_get_voltage_sel_regmap(struct regulator_dev *rdev);
+int regulator_map_voltage_iterate(struct regulator_dev *rdev,
+ int min_uV, int max_uV);
+
+/*
+ * Helper functions intended to be used by regulator drivers prior registering
+ * their regulators.
+ */
+int regulator_desc_list_voltage_linear_range(const struct regulator_desc *desc,
+ unsigned int selector);
#else
static inline struct regulator *regulator_get(struct device_d *dev, const char *id)