projects / mirror_ubuntu-eoan-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| c558e39e AS |
1 | /* |
| 2 | * Intel Low Power Subsystem PWM controller driver | |
| 3 | * | |
| 4 | * Copyright (C) 2014, Intel Corporation | |
| 5 | * | |
| 6 | * Derived from the original pwm-lpss.c | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | */ | |
| 12 | ||
| 13 | #ifndef __PWM_LPSS_H | |
| 14 | #define __PWM_LPSS_H | |
| 15 | ||
| 16 | #include <linux/device.h> | |
| 17 | #include <linux/pwm.h> | |
| 18 | ||
| 9dc419b6 HG |
19 | #define MAX_PWMS 4 |
| 20 | ||
| 21 | struct pwm_lpss_chip { | |
| 22 | struct pwm_chip chip; | |
| 23 | void __iomem *regs; | |
| 24 | const struct pwm_lpss_boardinfo *info; | |
| 25 | u32 saved_ctrl[MAX_PWMS]; | |
| 26 | }; | |
| c558e39e AS |
27 | |
| 28 | struct pwm_lpss_boardinfo { | |
| 29 | unsigned long clk_rate; | |
| 4e11f5ac | 30 | unsigned int npwm; |
| 883e4d07 | 31 | unsigned long base_unit_bits; |
| b997e3ed | 32 | bool bypass; |
| 4743765b HG |
33 | /* |
| 34 | * On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device | |
| 35 | * messes with the PWM0 controllers state, | |
| 36 | */ | |
| 37 | bool other_devices_aml_touches_pwm_regs; | |
| c558e39e AS |
38 | }; |
| 39 | ||
| c558e39e AS |
40 | struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r, |
| 41 | const struct pwm_lpss_boardinfo *info); | |
| 42 | int pwm_lpss_remove(struct pwm_lpss_chip *lpwm); | |
| 1d375b58 HG |
43 | int pwm_lpss_suspend(struct device *dev); |
| 44 | int pwm_lpss_resume(struct device *dev); | |
| c558e39e AS |
45 | |
| 46 | #endif /* __PWM_LPSS_H */ |