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-rw-r--r--include/linux/regulator/consumer.h15
-rw-r--r--include/linux/regulator/driver.h15
-rw-r--r--include/linux/regulator/fan53555.h60
-rw-r--r--include/linux/regulator/machine.h2
4 files changed, 92 insertions, 0 deletions
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index da339fd8c755..c43cd3556b1f 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -177,6 +177,8 @@ int regulator_set_mode(struct regulator *regulator, unsigned int mode);
unsigned int regulator_get_mode(struct regulator *regulator);
int regulator_set_optimum_mode(struct regulator *regulator, int load_uA);
+int regulator_allow_bypass(struct regulator *regulator, bool allow);
+
/* regulator notifier block */
int regulator_register_notifier(struct regulator *regulator,
struct notifier_block *nb);
@@ -328,6 +330,12 @@ static inline int regulator_set_optimum_mode(struct regulator *regulator,
return REGULATOR_MODE_NORMAL;
}
+static inline int regulator_allow_bypass(struct regulator *regulator,
+ bool allow)
+{
+ return 0;
+}
+
static inline int regulator_register_notifier(struct regulator *regulator,
struct notifier_block *nb)
{
@@ -352,4 +360,11 @@ static inline void regulator_set_drvdata(struct regulator *regulator,
#endif
+static inline int regulator_set_voltage_tol(struct regulator *regulator,
+ int new_uV, int tol_uV)
+{
+ return regulator_set_voltage(regulator,
+ new_uV - tol_uV, new_uV + tol_uV);
+}
+
#endif
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 4a9ca04a13ef..7932a3bf21bd 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -32,6 +32,8 @@ enum regulator_status {
REGULATOR_STATUS_NORMAL,
REGULATOR_STATUS_IDLE,
REGULATOR_STATUS_STANDBY,
+ /* The regulator is enabled but not regulating */
+ REGULATOR_STATUS_BYPASS,
/* in case that any other status doesn't apply */
REGULATOR_STATUS_UNDEFINED,
};
@@ -58,6 +60,7 @@ enum regulator_status {
* regulator_desc.n_voltages. Voltages may be reported in any order.
*
* @set_current_limit: Configure a limit for a current-limited regulator.
+ * The driver should select the current closest to max_uA.
* @get_current_limit: Get the configured limit for a current-limited regulator.
*
* @set_mode: Set the configured operating mode for the regulator.
@@ -67,6 +70,9 @@ enum regulator_status {
* @get_optimum_mode: Get the most efficient operating mode for the regulator
* when running with the specified parameters.
*
+ * @set_bypass: Set the regulator in bypass mode.
+ * @get_bypass: Get the regulator bypass mode state.
+ *
* @enable_time: Time taken for the regulator voltage output voltage to
* stabilise after being enabled, in microseconds.
* @set_ramp_delay: Set the ramp delay for the regulator. The driver should
@@ -133,6 +139,10 @@ struct regulator_ops {
unsigned int (*get_optimum_mode) (struct regulator_dev *, int input_uV,
int output_uV, int load_uA);
+ /* control and report on bypass mode */
+ int (*set_bypass)(struct regulator_dev *dev, bool enable);
+ int (*get_bypass)(struct regulator_dev *dev, bool *enable);
+
/* the operations below are for configuration of regulator state when
* its parent PMIC enters a global STANDBY/HIBERNATE state */
@@ -205,6 +215,8 @@ struct regulator_desc {
unsigned int vsel_mask;
unsigned int enable_reg;
unsigned int enable_mask;
+ unsigned int bypass_reg;
+ unsigned int bypass_mask;
unsigned int enable_time;
};
@@ -254,6 +266,7 @@ struct regulator_dev {
int exclusive;
u32 use_count;
u32 open_count;
+ u32 bypass_count;
/* lists we belong to */
struct list_head list; /* list of all regulators */
@@ -311,6 +324,8 @@ int regulator_disable_regmap(struct regulator_dev *rdev);
int regulator_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector);
+int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable);
+int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable);
void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data);
diff --git a/include/linux/regulator/fan53555.h b/include/linux/regulator/fan53555.h
new file mode 100644
index 000000000000..5c45c85d52ca
--- /dev/null
+++ b/include/linux/regulator/fan53555.h
@@ -0,0 +1,60 @@
+/*
+ * fan53555.h - Fairchild Regulator FAN53555 Driver
+ *
+ * Copyright (C) 2012 Marvell Technology Ltd.
+ * Yunfan Zhang <yfzhang@marvell.com>
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __FAN53555_H__
+
+/* VSEL ID */
+enum {
+ FAN53555_VSEL_ID_0 = 0,
+ FAN53555_VSEL_ID_1,
+};
+
+/* Transition slew rate limiting from a low to high voltage.
+ * -----------------------
+ * Bin |Slew Rate(mV/uS)
+ * ------|----------------
+ * 000 | 64.00
+ * ------|----------------
+ * 001 | 32.00
+ * ------|----------------
+ * 010 | 16.00
+ * ------|----------------
+ * 011 | 8.00
+ * ------|----------------
+ * 100 | 4.00
+ * ------|----------------
+ * 101 | 2.00
+ * ------|----------------
+ * 110 | 1.00
+ * ------|----------------
+ * 111 | 0.50
+ * -----------------------
+ */
+enum {
+ FAN53555_SLEW_RATE_64MV = 0,
+ FAN53555_SLEW_RATE_32MV,
+ FAN53555_SLEW_RATE_16MV,
+ FAN53555_SLEW_RATE_8MV,
+ FAN53555_SLEW_RATE_4MV,
+ FAN53555_SLEW_RATE_2MV,
+ FAN53555_SLEW_RATE_1MV,
+ FAN53555_SLEW_RATE_0_5MV,
+};
+
+struct fan53555_platform_data {
+ struct regulator_init_data *regulator;
+ unsigned int slew_rate;
+ /* Sleep VSEL ID */
+ unsigned int sleep_vsel_id;
+};
+
+#endif /* __FAN53555_H__ */
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index 40dd0a394cfa..36adbc82de6a 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -32,6 +32,7 @@ struct regulator;
* board/machine.
* STATUS: Regulator can be enabled and disabled.
* DRMS: Dynamic Regulator Mode Switching is enabled for this regulator.
+ * BYPASS: Regulator can be put into bypass mode
*/
#define REGULATOR_CHANGE_VOLTAGE 0x1
@@ -39,6 +40,7 @@ struct regulator;
#define REGULATOR_CHANGE_MODE 0x4
#define REGULATOR_CHANGE_STATUS 0x8
#define REGULATOR_CHANGE_DRMS 0x10
+#define REGULATOR_CHANGE_BYPASS 0x20
/**
* struct regulator_state - regulator state during low power system states
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.