[ARM] pxa: Add bare bones PWM API
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -22,6 +22,9 @@ config ARM
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Europe. There is an ARM Linux project with a web page at
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Europe. There is an ARM Linux project with a web page at
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<http://www.arm.linux.org.uk/>.
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<http://www.arm.linux.org.uk/>.
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config HAVE_PWM
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bool
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config SYS_SUPPORTS_APM_EMULATION
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config SYS_SUPPORTS_APM_EMULATION
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bool
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bool
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31
include/linux/pwm.h
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31
include/linux/pwm.h
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@ -0,0 +1,31 @@
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#ifndef __LINUX_PWM_H
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#define __LINUX_PWM_H
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struct pwm_device;
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/*
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* pwm_request - request a PWM device
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*/
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struct pwm_device *pwm_request(int pwm_id, const char *label);
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/*
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* pwm_free - free a PWM device
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*/
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void pwm_free(struct pwm_device *pwm);
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/*
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* pwm_config - change a PWM device configuration
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*/
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int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns);
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/*
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* pwm_enable - start a PWM output toggling
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*/
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int pwm_enable(struct pwm_device *pwm);
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/*
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* pwm_disable - stop a PWM output toggling
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*/
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void pwm_disable(struct pwm_device *pwm);
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#endif /* __ASM_ARCH_PWM_H */
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