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[ARM] pxa: Add bare bones PWM API

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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2008-04-13 21:41:55 +01:00 committed by Russell King
parent b8291ad07a
commit 1a189b9719
2 changed files with 34 additions and 0 deletions
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3
arch/arm/Kconfig
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@ -22,6 +22,9 @@ config ARM
Europe. There is an ARM Linux project with a web page at
<http://www.arm.linux.org.uk/>.
config HAVE_PWM
bool
config SYS_SUPPORTS_APM_EMULATION
bool

31
include/linux/pwm.h Normal file
View file

@ -0,0 +1,31 @@
#ifndef __LINUX_PWM_H
#define __LINUX_PWM_H
struct pwm_device;
/*
* pwm_request - request a PWM device
*/
struct pwm_device *pwm_request(int pwm_id, const char *label);
/*
* pwm_free - free a PWM device
*/
void pwm_free(struct pwm_device *pwm);
/*
* pwm_config - change a PWM device configuration
*/
int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns);
/*
* pwm_enable - start a PWM output toggling
*/
int pwm_enable(struct pwm_device *pwm);
/*
* pwm_disable - stop a PWM output toggling
*/
void pwm_disable(struct pwm_device *pwm);
#endif /* __ASM_ARCH_PWM_H */