diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pwm.h | 31 | ||||
| -rw-r--r-- | include/linux/pwm_backlight.h | 17 |
2 files changed, 48 insertions, 0 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h new file mode 100644 index 00000000000..3945f803d51 --- /dev/null +++ b/include/linux/pwm.h @@ -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 */ diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h new file mode 100644 index 00000000000..7a9754c9677 --- /dev/null +++ b/include/linux/pwm_backlight.h @@ -0,0 +1,17 @@ +/* + * Generic PWM backlight driver data - see drivers/video/backlight/pwm_bl.c + */ +#ifndef __LINUX_PWM_BACKLIGHT_H +#define __LINUX_PWM_BACKLIGHT_H + +struct platform_pwm_backlight_data { + int pwm_id; + unsigned int max_brightness; + unsigned int dft_brightness; + unsigned int pwm_period_ns; + int (*init)(struct device *dev); + int (*notify)(int brightness); + void (*exit)(struct device *dev); +}; + +#endif |