// SPDX-License-Identifier: GPL-2.0-or-later /* * wm831x-core.c -- Device access for Wolfson WM831x PMICs * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown <[email protected]> */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/export.h> #include <linux/bcd.h> #include <linux/delay.h> #include <linux/mfd/core.h> #include <linux/slab.h> #include <linux/err.h> #include <linux/mod_devicetable.h> #include <linux/mfd/wm831x/core.h> #include <linux/mfd/wm831x/pdata.h> #include <linux/mfd/wm831x/irq.h> #include <linux/mfd/wm831x/auxadc.h> #include <linux/mfd/wm831x/otp.h> #include <linux/mfd/wm831x/pmu.h> #include <linux/mfd/wm831x/regulator.h> /* Current settings - values are 2*2^(reg_val/4) microamps. These are * exported since they are used by multiple drivers. */ const unsigned int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = …; EXPORT_SYMBOL_GPL(…); static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg) { … } /** * wm831x_reg_lock: Unlock user keyed registers * * The WM831x has a user key preventing writes to particularly * critical registers. This function locks those registers, * allowing writes to them. * * @wm831x: pointer to local driver data structure */ void wm831x_reg_lock(struct wm831x *wm831x) { … } EXPORT_SYMBOL_GPL(…); /** * wm831x_reg_unlock: Unlock user keyed registers * * The WM831x has a user key preventing writes to particularly * critical registers. This function locks those registers, * preventing spurious writes. * * @wm831x: pointer to local driver data structure */ int wm831x_reg_unlock(struct wm831x *wm831x) { … } EXPORT_SYMBOL_GPL(…); static bool wm831x_reg_readable(struct device *dev, unsigned int reg) { … } static bool wm831x_reg_writeable(struct device *dev, unsigned int reg) { … } static bool wm831x_reg_volatile(struct device *dev, unsigned int reg) { … } /** * wm831x_reg_read: Read a single WM831x register. * * @wm831x: Device to read from. * @reg: Register to read. */ int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg) { … } EXPORT_SYMBOL_GPL(…); /** * wm831x_bulk_read: Read multiple WM831x registers * * @wm831x: Device to read from * @reg: First register * @count: Number of registers * @buf: Buffer to fill. */ int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg, int count, u16 *buf) { … } EXPORT_SYMBOL_GPL(…); static int wm831x_write(struct wm831x *wm831x, unsigned short reg, int bytes, void *src) { … } /** * wm831x_reg_write: Write a single WM831x register. * * @wm831x: Device to write to. * @reg: Register to write to. * @val: Value to write. */ int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg, unsigned short val) { … } EXPORT_SYMBOL_GPL(…); /** * wm831x_set_bits: Set the value of a bitfield in a WM831x register * * @wm831x: Device to write to. * @reg: Register to write to. * @mask: Mask of bits to set. * @val: Value to set (unshifted) */ int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg, unsigned short mask, unsigned short val) { … } EXPORT_SYMBOL_GPL(…); static const struct resource wm831x_dcdc1_resources[] = …; static const struct resource wm831x_dcdc2_resources[] = …; static const struct resource wm831x_dcdc3_resources[] = …; static const struct resource wm831x_dcdc4_resources[] = …; static const struct resource wm8320_dcdc4_buck_resources[] = …; static const struct resource wm831x_gpio_resources[] = …; static const struct resource wm831x_isink1_resources[] = …; static const struct resource wm831x_isink2_resources[] = …; static const struct resource wm831x_ldo1_resources[] = …; static const struct resource wm831x_ldo2_resources[] = …; static const struct resource wm831x_ldo3_resources[] = …; static const struct resource wm831x_ldo4_resources[] = …; static const struct resource wm831x_ldo5_resources[] = …; static const struct resource wm831x_ldo6_resources[] = …; static const struct resource wm831x_ldo7_resources[] = …; static const struct resource wm831x_ldo8_resources[] = …; static const struct resource wm831x_ldo9_resources[] = …; static const struct resource wm831x_ldo10_resources[] = …; static const struct resource wm831x_ldo11_resources[] = …; static const struct resource wm831x_on_resources[] = …; static const struct resource wm831x_power_resources[] = …; static const struct resource wm831x_rtc_resources[] = …; static const struct resource wm831x_status1_resources[] = …; static const struct resource wm831x_status2_resources[] = …; static const struct resource wm831x_touch_resources[] = …; static const struct resource wm831x_wdt_resources[] = …; static const struct mfd_cell wm8310_devs[] = …; static const struct mfd_cell wm8311_devs[] = …; static const struct mfd_cell wm8312_devs[] = …; static const struct mfd_cell wm8320_devs[] = …; static const struct mfd_cell touch_devs[] = …; static const struct mfd_cell rtc_devs[] = …; static const struct mfd_cell backlight_devs[] = …; struct regmap_config wm831x_regmap_config = …; EXPORT_SYMBOL_GPL(…); const struct of_device_id wm831x_of_match[] = …; EXPORT_SYMBOL_GPL(…); /* * Instantiate the generic non-control parts of the device. */ int wm831x_device_init(struct wm831x *wm831x, int irq) { … } int wm831x_device_suspend(struct wm831x *wm831x) { … } void wm831x_device_shutdown(struct wm831x *wm831x) { … } EXPORT_SYMBOL_GPL(…);
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