mfd: pm8xxx-pwm: add two APIs
These new APIs allow a driver to specify its PWM period,
and raw PWM values separately using chip specific
parameters.
Change-Id: I3e9860f30a50d4f3d9c556133761d51858d2a2e3
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
diff --git a/include/linux/mfd/pm8xxx/pwm.h b/include/linux/mfd/pm8xxx/pwm.h
index 2eca994..b15645d 100644
--- a/include/linux/mfd/pm8xxx/pwm.h
+++ b/include/linux/mfd/pm8xxx/pwm.h
@@ -78,6 +78,22 @@
};
/**
+ * pm8xxx_pwm_config_period - change PWM period
+ *
+ * @pwm: the PWM device
+ * @pwm_p: period in struct pm8xxx_pwm_period
+ */
+int pm8xxx_pwm_config_period(struct pwm_device *pwm,
+ struct pm8xxx_pwm_period *pwm_p);
+
+/**
+ * pm8xxx_pwm_config_pwm_value - change a PWM device configuration
+ * @pwm: the PWM device
+ * @pwm_value: the duty cycle in raw PWM value (< 2^pwm_size)
+ */
+int pm8xxx_pwm_config_pwm_value(struct pwm_device *pwm, int pwm_value);
+
+/**
* pm8xxx_pwm_lut_config - change a PWM device configuration to use LUT
* @pwm: the PWM device
* @period_us: period in micro second