projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| c558e39e AS |
2 | /* |
| 3 | * Intel Low Power Subsystem PWM controller driver | |
| 4 | * | |
| 5 | * Copyright (C) 2014, Intel Corporation | |
| 6 | * | |
| 7 | * Derived from the original pwm-lpss.c | |
| c558e39e AS |
8 | */ |
| 9 | ||
| 10 | #ifndef __PWM_LPSS_H | |
| 11 | #define __PWM_LPSS_H | |
| 12 | ||
| 13 | #include <linux/device.h> | |
| 14 | #include <linux/pwm.h> | |
| 15 | ||
| 9dc419b6 HG |
16 | #define MAX_PWMS 4 |
| 17 | ||
| 18 | struct pwm_lpss_chip { | |
| 19 | struct pwm_chip chip; | |
| 20 | void __iomem *regs; | |
| 21 | const struct pwm_lpss_boardinfo *info; | |
| 22 | u32 saved_ctrl[MAX_PWMS]; | |
| 23 | }; | |
| c558e39e AS |
24 | |
| 25 | struct pwm_lpss_boardinfo { | |
| 26 | unsigned long clk_rate; | |
| 4e11f5ac | 27 | unsigned int npwm; |
| 883e4d07 | 28 | unsigned long base_unit_bits; |
| b997e3ed | 29 | bool bypass; |
| 4743765b HG |
30 | /* |
| 31 | * On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device | |
| 32 | * messes with the PWM0 controllers state, | |
| 33 | */ | |
| 34 | bool other_devices_aml_touches_pwm_regs; | |
| c558e39e AS |
35 | }; |
| 36 | ||
| c558e39e AS |
37 | struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r, |
| 38 | const struct pwm_lpss_boardinfo *info); | |
| 39 | int pwm_lpss_remove(struct pwm_lpss_chip *lpwm); | |
| 1d375b58 HG |
40 | int pwm_lpss_suspend(struct device *dev); |
| 41 | int pwm_lpss_resume(struct device *dev); | |
| c558e39e AS |
42 | |
| 43 | #endif /* __PWM_LPSS_H */ |