+void cros_ec_check_keyboard(struct udevice *dev);
+
+struct i2c_msg;
+/*
+ * Tunnel an I2C transfer to the EC
+ *
+ * @param dev CROS-EC device
+ * @param port The remote port on EC to use
+ * @param msg List of messages to transfer
+ * @param nmsgs Number of messages to transfer
+ */
+int cros_ec_i2c_tunnel(struct udevice *dev, int port, struct i2c_msg *msg,
+ int nmsgs);
+
+/**
+ * cros_ec_get_events_b() - Get event mask B
+ *
+ * Return: value of event mask, default value of 0 if it could not be read
+ */
+uint64_t cros_ec_get_events_b(struct udevice *dev);
+
+/**
+ * cros_ec_clear_events_b() - Clear even mask B
+ *
+ * Any pending events in the B range are cleared
+ *
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_clear_events_b(struct udevice *dev, uint64_t mask);
+
+/**
+ * cros_ec_efs_verify() - tell the EC to verify one of its images
+ *
+ * @param dev CROS-EC device
+ * @param region Flash region to query
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_efs_verify(struct udevice *dev, enum ec_flash_region region);
+
+/**
+ * cros_ec_battery_cutoff() - Request that the battery be cut off
+ *
+ * This tells the battery to stop supplying power. This is used before shipping
+ * a device to ensure that the battery remains charged while the device is
+ * shipped or sitting on the shelf waiting to be purchased.
+ *
+ * @param dev CROS-EC device
+ * @param flags Flags to use (EC_BATTERY_CUTOFF_FLAG_...)
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_battery_cutoff(struct udevice *dev, uint8_t flags);
+
+/**
+ * cros_ec_set_pwm_duty() - Set duty cycle of a generic pwm
+ *
+ * Note that duty value needs to be passed to the EC as a 16 bit number
+ * for increased precision.
+ *
+ * @param dev CROS-EC device
+ * @param index Index of the pwm
+ * @param duty Desired duty cycle, in 0..EC_PWM_MAX_DUTY range.
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_set_pwm_duty(struct udevice *dev, uint8_t index, uint16_t duty);
+
+/**
+ * cros_ec_read_limit_power() - Check if power is limited by batter/charger
+ *
+ * Sometimes the battery is low and / or the device is connected to a charger
+ * that cannot supply much power.
+ *
+ * @param dev CROS-EC device
+ * @param limit_powerp Returns whether power is limited (0 or 1)
+ * Return: 0 if OK, -ENOSYS if the EC does not support this comment, -EINVAL
+ * if the EC returned an invalid response
+ */
+int cros_ec_read_limit_power(struct udevice *dev, int *limit_powerp);
+
+/**
+ * cros_ec_config_powerbtn() - Configure the behaviour of the power button
+ *
+ * @param dev CROS-EC device
+ * @param flags Flags to use (EC_POWER_BUTTON_...)
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_config_powerbtn(struct udevice *dev, uint32_t flags);
+
+/**
+ * cros_ec_get_lid_shutdown_mask() - Set the lid shutdown mask
+ *
+ * Determines whether a lid close event is reported
+ *
+ * @param dev CROS-EC device
+ * Return: shufdown mas if OK, -ve on error
+ */
+int cros_ec_get_lid_shutdown_mask(struct udevice *dev);
+
+/**
+ * cros_ec_set_lid_shutdown_mask() - Set the lid shutdown mask
+ *
+ * Set whether a lid close event is reported
+ *
+ * @param dev CROS-EC device
+ * @param enable true to enable reporting, false to disable
+ * Return: shufdown mas if OK, -ve on error
+ */
+int cros_ec_set_lid_shutdown_mask(struct udevice *dev, int enable);
+
+/**
+ * cros_ec_hello() - Send a hello message
+ *
+ * Sends a message with a fixed input value and checks that the expected output
+ * value is received
+ *
+ * @dev: CROS-EC device
+ * @handshakep: If non-NULL, returns received handshake value on error
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_hello(struct udevice *dev, uint *handshakep);
+
+/**
+ * cros_ec_get_features() - Get the set of features provided by the EC
+ *
+ * See enum ec_feature_code for the list of available features
+ *
+ * @dev: CROS-EC device
+ * @featuresp: Returns a bitmask of supported features
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_get_features(struct udevice *dev, u64 *featuresp);
+
+/**
+ * cros_ec_check_feature() - Check if a feature is supported
+ *
+ * @dev: CROS-EC device
+ * @feature: Feature number to check (enum ec_feature_code)
+ * Return: true if supported, false if not, -ve on error
+ */
+int cros_ec_check_feature(struct udevice *dev, uint feature);
+
+/**
+ * cros_ec_get_switches() - Get switches value
+ *
+ * @dev: CROS-EC device
+ * Return: switches value, or -ENOSYS if not supported, or other -ve value on
+ * other error
+ */
+int cros_ec_get_switches(struct udevice *dev);
+
+/**
+ * cros_ec_vstore_supported() - Check if vstore is supported
+ *
+ * @dev: CROS-EC device
+ * Return: false if not supported, true if supported, -ve on error
+ */
+int cros_ec_vstore_supported(struct udevice *dev);
+
+/**
+ * cros_ec_vstore_info() - Get vstore information
+ *
+ * @dev: CROS-EC device
+ * @lockedp: mask of locked slots
+ * Return: number of vstore slots supported by the EC,, -ve on error
+ */
+int cros_ec_vstore_info(struct udevice *dev, u32 *lockedp);
+
+/**
+ * cros_ec_vstore_read() - Read data from EC vstore slot
+ *
+ * @dev: CROS-EC device
+ * @slot: vstore slot to read from
+ * @data: buffer to store read data, must be EC_VSTORE_SLOT_SIZE bytes
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_vstore_read(struct udevice *dev, int slot, uint8_t *data);
+
+/**
+ * cros_ec_vstore_write() - Save data into EC vstore slot
+ *
+ * The maximum size of data is EC_VSTORE_SLOT_SIZE. It is the caller's
+ * responsibility to check the number of implemented slots by querying the
+ * vstore info.
+ *
+ * @dev: CROS-EC device
+ * @slot: vstore slot to write into
+ * @data: data to write
+ * @size: size of data in bytes
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_vstore_write(struct udevice *dev, int slot, const uint8_t *data,
+ size_t size);
+
+/**
+ * cros_ec_read_batt_charge() - Read the battery-charge state
+ *
+ * @dev: CROS-EC device
+ * @chargep: Return battery-charge state as a percentage
+ * Return: 0 if OK, -ve on error
+ */
+int cros_ec_read_batt_charge(struct udevice *dev, uint *chargep);