1/* SPDX-License-Identifier: GPL-2.0-only */ 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 8 */ 9 10#ifndef __PWM_LPSS_H 11#define __PWM_LPSS_H 12 13#include <linux/device.h> 14#include <linux/pwm.h> 15 16#define MAX_PWMS 4 17 18struct pwm_lpss_chip { 19 struct pwm_chip chip; 20 void __iomem *regs; 21 const struct pwm_lpss_boardinfo *info; 22}; 23 24struct pwm_lpss_boardinfo { 25 unsigned long clk_rate; 26 unsigned int npwm; 27 unsigned long base_unit_bits; 28 bool bypass; 29 /* 30 * On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device 31 * messes with the PWM0 controllers state, 32 */ 33 bool other_devices_aml_touches_pwm_regs; 34}; 35 36struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r, 37 const struct pwm_lpss_boardinfo *info); 38int pwm_lpss_remove(struct pwm_lpss_chip *lpwm); 39 40#endif /* __PWM_LPSS_H */ 41