883e4d070f
For Broxton PWM controller, base unit is defined as 8-bit integer and 14-bit fraction, so need to update base unit setting to output wave with right frequency. Signed-off-by: Qipeng Zha <qipeng.zha@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
35 lines
937 B
C
35 lines
937 B
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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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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struct pwm_lpss_chip;
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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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};
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extern const struct pwm_lpss_boardinfo pwm_lpss_byt_info;
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extern const struct pwm_lpss_boardinfo pwm_lpss_bsw_info;
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extern const struct pwm_lpss_boardinfo pwm_lpss_bxt_info;
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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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