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40 lines
903 B
40 lines
903 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
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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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#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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}; |
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struct pwm_lpss_boardinfo { |
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unsigned long clk_rate; |
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unsigned int npwm; |
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unsigned long base_unit_bits; |
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bool bypass; |
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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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}; |
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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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#endif /* __PWM_LPSS_H */
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