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Diffstat (limited to '')
| -rw-r--r-- | drivers/pwm/pwm-lpss.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h new file mode 100644 index 000000000..70db7e389 --- /dev/null +++ b/drivers/pwm/pwm-lpss.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Intel Low Power Subsystem PWM controller driver + * + * Copyright (C) 2014, Intel Corporation + * + * Derived from the original pwm-lpss.c + */ + +#ifndef __PWM_LPSS_H +#define __PWM_LPSS_H + +#include <linux/device.h> +#include <linux/pwm.h> + +#define MAX_PWMS 4 + +struct pwm_lpss_chip { + struct pwm_chip chip; + void __iomem *regs; + const struct pwm_lpss_boardinfo *info; +}; + +struct pwm_lpss_boardinfo { + unsigned long clk_rate; + unsigned int npwm; + unsigned long base_unit_bits; + bool bypass; + /* + * On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device + * messes with the PWM0 controllers state, + */ + bool other_devices_aml_touches_pwm_regs; +}; + +struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r, + const struct pwm_lpss_boardinfo *info); +int pwm_lpss_remove(struct pwm_lpss_chip *lpwm); + +#endif /* __PWM_LPSS_H */ |