2019-06-04 11:11:33 +03:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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2014-08-19 20:17:35 +04:00
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/*
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* Intel Low Power Subsystem PWM controller driver
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*
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* Copyright (C) 2014, Intel Corporation
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*
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* Derived from the original pwm-lpss.c
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*/
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#ifndef __PWM_LPSS_H
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#define __PWM_LPSS_H
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#include <linux/device.h>
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#include <linux/pwm.h>
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2018-10-12 13:12:26 +03:00
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#define MAX_PWMS 4
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struct pwm_lpss_chip {
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struct pwm_chip chip;
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void __iomem *regs;
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const struct pwm_lpss_boardinfo *info;
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u32 saved_ctrl[MAX_PWMS];
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};
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2014-08-19 20:17:35 +04:00
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struct pwm_lpss_boardinfo {
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unsigned long clk_rate;
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2015-10-20 16:53:05 +03:00
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unsigned int npwm;
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2015-11-17 12:20:15 +03:00
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unsigned long base_unit_bits;
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2017-04-06 14:54:01 +03:00
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bool bypass;
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2018-10-14 18:12:01 +03:00
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/*
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* On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device
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* messes with the PWM0 controllers state,
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*/
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bool other_devices_aml_touches_pwm_regs;
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2014-08-19 20:17:35 +04:00
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};
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struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
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const struct pwm_lpss_boardinfo *info);
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int pwm_lpss_remove(struct pwm_lpss_chip *lpwm);
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2018-04-26 15:10:23 +03:00
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int pwm_lpss_suspend(struct device *dev);
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int pwm_lpss_resume(struct device *dev);
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2014-08-19 20:17:35 +04:00
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#endif /* __PWM_LPSS_H */
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