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Merge branch 'for-4.8/mfd' into for-4.8/drivers

This commit is contained in:
Thierry Reding 2016-07-25 10:38:54 +02:00
parent 017bb04e84 2b66bd692c
commit 38593426ec
3 changed files with 63 additions and 0 deletions
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17
drivers/platform/chrome/cros_ec_proto.c
View File

@ -380,3 +380,20 @@ int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
return ret;
}
EXPORT_SYMBOL(cros_ec_cmd_xfer);
int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
struct cros_ec_command *msg)
{
int ret;
ret = cros_ec_cmd_xfer(ec_dev, msg);
if (ret < 0) {
dev_err(ec_dev->dev, "Command xfer error (err:%d)\n", ret);
} else if (msg->result != EC_RES_SUCCESS) {
dev_dbg(ec_dev->dev, "Command result (err: %d)\n", msg->result);
return -EPROTO;
}
return ret;
}
EXPORT_SYMBOL(cros_ec_cmd_xfer_status);

15
include/linux/mfd/cros_ec.h
View File

@ -225,6 +225,21 @@ int cros_ec_check_result(struct cros_ec_device *ec_dev,
int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
struct cros_ec_command *msg);
/**
* cros_ec_cmd_xfer_status - Send a command to the ChromeOS EC
*
* This function is identical to cros_ec_cmd_xfer, except it returns success
* status only if both the command was transmitted successfully and the EC
* replied with success status. It's not necessary to check msg->result when
* using this function.
*
* @ec_dev: EC device
* @msg: Message to write
* @return: Num. of bytes transferred on success, <0 on failure
*/
int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
struct cros_ec_command *msg);
/**
* cros_ec_remove - Remove a ChromeOS EC
*

31
include/linux/mfd/cros_ec_commands.h
View File

@ -949,6 +949,37 @@ struct ec_params_pwm_set_fan_duty {
uint32_t percent;
} __packed;
#define EC_CMD_PWM_SET_DUTY 0x25
/* 16 bit duty cycle, 0xffff = 100% */
#define EC_PWM_MAX_DUTY 0xffff
enum ec_pwm_type {
/* All types, indexed by board-specific enum pwm_channel */
EC_PWM_TYPE_GENERIC = 0,
/* Keyboard backlight */
EC_PWM_TYPE_KB_LIGHT,
/* Display backlight */
EC_PWM_TYPE_DISPLAY_LIGHT,
EC_PWM_TYPE_COUNT,
};
struct ec_params_pwm_set_duty {
uint16_t duty; /* Duty cycle, EC_PWM_MAX_DUTY = 100% */
uint8_t pwm_type; /* ec_pwm_type */
uint8_t index; /* Type-specific index, or 0 if unique */
} __packed;
#define EC_CMD_PWM_GET_DUTY 0x26
struct ec_params_pwm_get_duty {
uint8_t pwm_type; /* ec_pwm_type */
uint8_t index; /* Type-specific index, or 0 if unique */
} __packed;
struct ec_response_pwm_get_duty {
uint16_t duty; /* Duty cycle, EC_PWM_MAX_DUTY = 100% */
} __packed;
/*****************************************************************************/
/*
* Lightbar commands. This looks worse than it is. Since we only use one HOST