#ifndef _INCLUDE_REGULATOR_H_
#define _INCLUDE_REGULATOR_H_
+struct udevice;
+
/**
* U-Boot Voltage/Current Regulator
* ================================
* 'UCLASS_REGULATOR' and the regulator driver API.
*
* The regulator uclass - is based on uclass platform data which is allocated,
- * automatically for each regulator device on bind and 'dev->uclass_platdata'
- * points to it. The data type is: 'struct dm_regulator_uclass_platdata'.
+ * automatically for each regulator device on bind and 'dev->uclass_plat'
+ * points to it. The data type is: 'struct dm_regulator_uclass_plat'.
* The uclass file: 'drivers/power/regulator/regulator-uclass.c'
*
* The regulator device - is based on driver's model 'struct udevice'.
* The API can use regulator name in two meanings:
* - devname - the regulator device's name: 'dev->name'
- * - platname - the device's platdata's name. So in the code it looks like:
- * 'uc_pdata = dev->uclass_platdata'; 'name = uc_pdata->name'.
+ * - platname - the device's plat's name. So in the code it looks like:
+ * 'uc_pdata = dev->uclass_plat'; 'name = uc_pdata->name'.
*
* The regulator device driver - provide an implementation of uclass operations
* pointed by 'dev->driver->ops' as a struct of type 'struct dm_regulator_ops'.
};
/**
- * struct dm_regulator_uclass_platdata - pointed by dev->uclass_platdata, and
+ * struct dm_regulator_uclass_plat - pointed by dev->uclass_plat, and
* allocated on each regulator bind. This structure holds an information
* about each regulator's constraints and supported operation modes.
* There is no "step" voltage value - so driver should take care of this.
* @max_uA* - maximum amperage (micro Amps)
* @always_on* - bool type, true or false
* @boot_on* - bool type, true or false
+ * @force_off* - bool type, true or false
* TODO(sjg@chromium.org): Consider putting the above two into @flags
+ * @ramp_delay - Time to settle down after voltage change (unit: uV/us)
* @flags: - flags value (see REGULATOR_FLAG_...)
* @name** - fdt regulator name - should be taken from the device tree
* ctrl_reg: - Control register offset used to enable/disable regulator
* The constraints: type, mode, mode_count, can be set by device driver, e.g.
* by the driver '.probe' method.
*/
-struct dm_regulator_uclass_platdata {
+struct dm_regulator_uclass_plat {
enum regulator_type type;
struct dm_regulator_mode *mode;
int mode_count;
int min_uV;
int max_uV;
+ int init_uV;
int min_uA;
int max_uA;
+ unsigned int ramp_delay;
bool always_on;
bool boot_on;
+ bool force_off;
const char *name;
int flags;
u8 ctrl_reg;
u8 volt_reg;
+ bool suspend_on;
+ u32 suspend_uV;
};
/* Regulator device operations */
int (*set_value)(struct udevice *dev, int uV);
/**
+ * The regulator suspend output value function calls operates
+ * on a micro Volts.
+ *
+ * get/set_suspen_value - get/set suspend mode output value
+ * @dev - regulator device
+ * Sets:
+ * @uV - set the suspend output value [micro Volts]
+ * @return output value [uV] on success or negative errno if fail.
+ */
+ int (*set_suspend_value)(struct udevice *dev, int uV);
+ int (*get_suspend_value)(struct udevice *dev);
+
+ /**
* The regulator output current function calls operates on a micro Amps.
*
* get/set_current - get/set output current of the given output number
int (*set_enable)(struct udevice *dev, bool enable);
/**
+ * The most basic feature of the regulator output is its enable state
+ * in suspend mode.
+ *
+ * get/set_suspend_enable - get/set enable state of the suspend output
+ * @dev - regulator device
+ * Sets:
+ * @enable - set true - enable or false - disable
+ * @return true/false for get or -errno if fail; 0 / -errno for set.
+ */
+ int (*set_suspend_enable)(struct udevice *dev, bool enable);
+ int (*get_suspend_enable)(struct udevice *dev);
+
+ /**
* The 'get/set_mode()' function calls should operate on a driver-
* specific mode id definitions, which should be found in:
* field 'id' of struct dm_regulator_mode.
int (*set_mode)(struct udevice *dev, int mode_id);
};
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
/**
* regulator_mode: returns a pointer to the array of regulator mode info
*
* @dev - pointer to the regulator device
* @modep - pointer to the returned mode info array
- * @return - count of modep entries on success or negative errno if fail.
+ * Return: - count of modep entries on success or negative errno if fail.
*/
int regulator_mode(struct udevice *dev, struct dm_regulator_mode **modep);
* regulator_get_value: get microvoltage voltage value of a given regulator
*
* @dev - pointer to the regulator device
- * @return - positive output value [uV] on success or negative errno if fail.
+ * Return: - positive output value [uV] on success or negative errno if fail.
*/
int regulator_get_value(struct udevice *dev);
*
* @dev - pointer to the regulator device
* @uV - the output value to set [micro Volts]
- * @return - 0 on success or -errno val if fails
+ * Return: - 0 on success or -errno val if fails
*/
int regulator_set_value(struct udevice *dev, int uV);
/**
+ * regulator_set_suspend_value: set the suspend microvoltage value of a given regulator.
+ *
+ * @dev - pointer to the regulator device
+ * @uV - the output suspend value to set [micro Volts]
+ * Return: - 0 on success or -errno val if fails
+ */
+int regulator_set_suspend_value(struct udevice *dev, int uV);
+
+/**
+ * regulator_get_suspend_value: get the suspend microvoltage value of a given regulator.
+ *
+ * @dev - pointer to the regulator device
+ * Return: - positive output value [uV] on success or negative errno if fail.
+ */
+int regulator_get_suspend_value(struct udevice *dev);
+
+/**
* regulator_set_value_force: set the microvoltage value of a given regulator
* without any min-,max condition check
*
* @dev - pointer to the regulator device
* @uV - the output value to set [micro Volts]
- * @return - 0 on success or -errno val if fails
+ * Return: - 0 on success or -errno val if fails
*/
int regulator_set_value_force(struct udevice *dev, int uV);
* regulator_get_current: get microampere value of a given regulator
*
* @dev - pointer to the regulator device
- * @return - positive output current [uA] on success or negative errno if fail.
+ * Return: - positive output current [uA] on success or negative errno if fail.
*/
int regulator_get_current(struct udevice *dev);
*
* @dev - pointer to the regulator device
* @uA - set the output current [micro Amps]
- * @return - 0 on success or -errno val if fails
+ * Return: - 0 on success or -errno val if fails
*/
int regulator_set_current(struct udevice *dev, int uA);
* regulator_get_enable: get regulator device enable state.
*
* @dev - pointer to the regulator device
- * @return - true/false of enable state or -errno val if fails
+ * Return: - true/false of enable state or -errno val if fails
*/
int regulator_get_enable(struct udevice *dev);
*
* @dev - pointer to the regulator device
* @enable - set true or false
- * @return - 0 on success or -errno val if fails
+ * Return: - 0 on success or -errno val if fails
*/
int regulator_set_enable(struct udevice *dev, bool enable);
*
* @dev - pointer to the regulator device
* @enable - set true or false
- * @return - 0 on success or if enabling is not supported
+ * Return: - 0 on success or if enabling is not supported
* -errno val if fails.
*/
int regulator_set_enable_if_allowed(struct udevice *dev, bool enable);
/**
+ * regulator_set_suspend_enable: set regulator suspend enable state
+ *
+ * @dev - pointer to the regulator device
+ * @enable - set true or false
+ * Return: - 0 on success or -errno val if fails
+ */
+int regulator_set_suspend_enable(struct udevice *dev, bool enable);
+
+/**
+ * regulator_get_suspend_enable: get regulator suspend enable state
+ *
+ * @dev - pointer to the regulator device
+ * Return: - true/false of enable state or -errno val if fails
+ */
+int regulator_get_suspend_enable(struct udevice *dev);
+
+/**
* regulator_get_mode: get active operation mode id of a given regulator
*
* @dev - pointer to the regulator device
- * @return - positive mode 'id' number on success or -errno val if fails
+ * Return: - positive mode 'id' number on success or -errno val if fails
* Note:
* The device can provide an array of operating modes, which is type of struct
* dm_regulator_mode. Each mode has it's own 'id', which should be unique inside
*
* @dev - pointer to the regulator device
* @mode_id - mode id to set ('id' field of struct type dm_regulator_mode)
- * @return - 0 on success or -errno value if fails
+ * Return: - 0 on success or -errno value if fails
* Note:
* The device can provide an array of operating modes, which is type of struct
* dm_regulator_mode. Each mode has it's own 'id', which should be unique inside
int regulators_enable_boot_on(bool verbose);
/**
+ * regulators_enable_boot_off() - disable regulators needed for boot
+ *
+ * This disables all regulators which are marked to be off at boot time.
+ *
+ * This effectively calls regulator_unset() for every regulator.
+ */
+int regulators_enable_boot_off(bool verbose);
+
+/**
* regulator_autoset: setup the voltage/current on a regulator
*
* The setup depends on constraints found in device's uclass's platform data
- * (struct dm_regulator_uclass_platdata):
+ * (struct dm_regulator_uclass_plat):
*
* - Enable - will set - if any of: 'always_on' or 'boot_on' is set to true,
* or if both are unset, then the function returns
*
* The function returns on the first-encountered error.
*
- * @platname - expected string for dm_regulator_uclass_platdata .name field
+ * @platname - expected string for dm_regulator_uclass_plat .name field
* @devp - returned pointer to the regulator device - if non-NULL passed
* @return: 0 on success or negative value of errno.
*/
int regulator_autoset(struct udevice *dev);
/**
+ * regulator_unset: turn off a regulator
+ *
+ * The setup depends on constraints found in device's uclass's platform data
+ * (struct dm_regulator_uclass_platdata):
+ *
+ * - Disable - will set - if 'force_off' is set to true,
+ *
+ * The function returns on the first-encountered error.
+ */
+int regulator_unset(struct udevice *dev);
+
+/**
* regulator_autoset_by_name: setup the regulator given by its uclass's
* platform data name field. The setup depends on constraints found in device's
- * uclass's platform data (struct dm_regulator_uclass_platdata):
+ * uclass's platform data (struct dm_regulator_uclass_plat):
* - Enable - will set - if any of: 'always_on' or 'boot_on' is set to true,
* or if both are unset, then the function returns
* - Voltage value - will set - if '.min_uV' and '.max_uV' values are equal
*
* The function returns on first encountered error.
*
- * @platname - expected string for dm_regulator_uclass_platdata .name field
+ * @platname - expected string for dm_regulator_uclass_plat .name field
* @devp - returned pointer to the regulator device - if non-NULL passed
* @return: 0 on success or negative value of errno.
*
* regulator_autoset_by_name() for each name from the list.
*
* @list_platname - an array of expected strings for .name field of each
- * regulator's uclass platdata
+ * regulator's uclass plat
* @list_devp - an array of returned pointers to the successfully setup
* regulator devices if non-NULL passed
* @verbose - (true/false) print each regulator setup info, or be quiet
- * @return 0 on successfully setup of all list entries, otherwise first error.
+ * Return: 0 on successfully setup of all list entries, otherwise first error.
*
* The returned 'regulator' devices can be used with:
* - regulator_get/set_*
*
* @devname - expected string for 'dev->name' of regulator device
* @devp - returned pointer to the regulator device
- * @return 0 on success or negative value of errno.
+ * Return: 0 on success or negative value of errno.
*
* The returned 'regulator' device is probed and can be used with:
* - regulator_get/set_*
/**
* regulator_get_by_platname: returns the pointer to the pmic regulator device.
- * Search by name, found in regulator uclass platdata.
+ * Search by name, found in regulator uclass plat.
*
- * @platname - expected string for uc_pdata->name of regulator uclass platdata
+ * @platname - expected string for uc_pdata->name of regulator uclass plat
* @devp - returns pointer to the regulator device or NULL on error
- * @return 0 on success or negative value of errno.
+ * Return: 0 on success or negative value of errno.
*
* The returned 'regulator' device is probed and can be used with:
* - regulator_get/set_*
* @dev - device with supply phandle
* @supply_name - phandle name of regulator
* @devp - returned pointer to the supply device
- * @return 0 on success or negative value of errno.
+ * Return: 0 on success or negative value of errno.
*/
int device_get_supply_regulator(struct udevice *dev, const char *supply_name,
struct udevice **devp);
+#else
+static inline int regulator_mode(struct udevice *dev, struct dm_regulator_mode **modep)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_get_value(struct udevice *dev)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_set_value(struct udevice *dev, int uV)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_set_suspend_value(struct udevice *dev, int uV)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_get_suspend_value(struct udevice *dev)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_set_value_force(struct udevice *dev, int uV)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_get_current(struct udevice *dev)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_set_current(struct udevice *dev, int uA)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_get_enable(struct udevice *dev)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_set_enable(struct udevice *dev, bool enable)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_set_enable_if_allowed(struct udevice *dev, bool enable)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_set_suspend_enable(struct udevice *dev, bool enable)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_get_suspend_enable(struct udevice *dev)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_get_mode(struct udevice *dev)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_set_mode(struct udevice *dev, int mode_id)
+{
+ return -ENOSYS;
+}
+
+static inline int regulators_enable_boot_on(bool verbose)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_autoset(struct udevice *dev)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_autoset_by_name(const char *platname, struct udevice **devp)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_list_autoset(const char *list_platname[], struct udevice *list_devp[],
+ bool verbose)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_get_by_devname(const char *devname, struct udevice **devp)
+{
+ return -ENOSYS;
+}
+
+static inline int regulator_get_by_platname(const char *platname, struct udevice **devp)
+{
+ return -ENOSYS;
+}
+
+static inline int device_get_supply_regulator(struct udevice *dev, const char *supply_name,
+ struct udevice **devp)
+{
+ return -ENOSYS;
+}
+#endif
#endif /* _INCLUDE_REGULATOR_H_ */
projects / platform / kernel / u-boot.git / blobdiff