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mfd: cros_ec: Add PWM_SET_DUTY API

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Add API for fan control.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Gwendal Grignou
2019-06-03 11:33:42 -07:00
committed by Lee Jones
parent 3c46ae6160
commit 89193a04fc
1 changed files with 18 additions and 2 deletions
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20
include/linux/mfd/cros_ec_commands.h
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@@ -1521,11 +1521,19 @@ struct ec_response_pwm_get_fan_rpm {
/* Set target fan RPM */
#define EC_CMD_PWM_SET_FAN_TARGET_RPM 0x0021
struct ec_params_pwm_set_fan_target_rpm {
/* Version 0 of input params */
struct ec_params_pwm_set_fan_target_rpm_v0 {
uint32_t rpm;
} __ec_align4;
/* Version 1 of input params */
struct ec_params_pwm_set_fan_target_rpm_v1 {
uint32_t rpm;
uint8_t fan_idx;
} __ec_align_size1;
/* Get keyboard backlight */
/* OBSOLETE - Use EC_CMD_PWM_SET_DUTY */
#define EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT 0x0022
struct ec_response_pwm_get_keyboard_backlight {
@@ -1534,6 +1542,7 @@ struct ec_response_pwm_get_keyboard_backlight {
} __ec_align1;
/* Set keyboard backlight */
/* OBSOLETE - Use EC_CMD_PWM_SET_DUTY */
#define EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT 0x0023
struct ec_params_pwm_set_keyboard_backlight {
@@ -1543,10 +1552,17 @@ struct ec_params_pwm_set_keyboard_backlight {
/* Set target fan PWM duty cycle */
#define EC_CMD_PWM_SET_FAN_DUTY 0x0024
struct ec_params_pwm_set_fan_duty {
/* Version 0 of input params */
struct ec_params_pwm_set_fan_duty_v0 {
uint32_t percent;
} __ec_align4;
/* Version 1 of input params */
struct ec_params_pwm_set_fan_duty_v1 {
uint32_t percent;
uint8_t fan_idx;
} __ec_align_size1;
#define EC_CMD_PWM_SET_DUTY 0x0025
/* 16 bit duty cycle, 0xffff = 100% */
#define EC_PWM_MAX_DUTY 0xffff