hwmon: (emc2305) Add support for PWM frequency, polarity and output

Add three new attributes to the driver data structures to support
configuration of PWM frequency, PWM polarity and PWM output config.

Signed-off-by: Florin Leotescu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Guenter Roeck <[email protected]>

Author: Florin Leotescu

drivers/hwmon/emc2305.c

@@ -89,17 +89,23 @@ struct emc2305_cdev_data {
  * @hwmon_dev: hwmon device
  * @max_state: maximum cooling state of the cooling device
  * @pwm_num: number of PWM channels
+ * @pwm_output_mask: PWM output mask
+ * @pwm_polarity_mask: PWM polarity mask
  * @pwm_separate: separate PWM settings for every channel
  * @pwm_min: array of minimum PWM per channel
+ * @pwm_freq: array of PWM frequency per channel
  * @cdev_data: array of cooling devices data
  */
 struct emc2305_data {
 	struct i2c_client *client;
 	struct device *hwmon_dev;
 	u8 max_state;
 	u8 pwm_num;
+	u8 pwm_output_mask;
+	u8 pwm_polarity_mask;
 	bool pwm_separate;
 	u8 pwm_min[EMC2305_PWM_MAX];
+	u16 pwm_freq[EMC2305_PWM_MAX];
 	struct emc2305_cdev_data cdev_data[EMC2305_PWM_MAX];
 };
 

include/linux/platform_data/emc2305.h

@@ -9,14 +9,20 @@
  * struct emc2305_platform_data - EMC2305 driver platform data
  * @max_state: maximum cooling state of the cooling device;
  * @pwm_num: number of active channels;
+ * @pwm_output_mask: PWM output mask
+ * @pwm_polarity_mask: PWM polarity mask
  * @pwm_separate: separate PWM settings for every channel;
  * @pwm_min: array of minimum PWM per channel;
+ * @pwm_freq: array of PWM frequency per channel
  */
 struct emc2305_platform_data {
 	u8 max_state;
 	u8 pwm_num;
+	u8 pwm_output_mask;
+	u8 pwm_polarity_mask;
 	bool pwm_separate;
 	u8 pwm_min[EMC2305_PWM_MAX];
+	u16 pwm_freq[EMC2305_PWM_MAX];
 };
 
 #endif