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ec/google/chromeec: Add more wrappers for regulator control 

google_chromeec_regulator_enable is for enabling/disabling
the regulator. google_chromeec_regulator_is_enabled is for
querying if the regulator is enabled.

BUG=b:168863056,b:147789962
BRANCH=none
TEST=emerge-asurada coreboot

Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Change-Id: Ia804242042b0026af19025a0c4a74b3ab8475dab
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46686
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
This commit is contained in:
Yidi Lin 2020-10-23 16:02:59 +08:00 committed by Hung-Te Lin
parent 9ee02095fa
commit 99e6dd9f74
2 changed files with 67 additions and 0 deletions
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47
src/ec/google/chromeec/ec.c
View File

@ -1624,6 +1624,53 @@ int google_chromeec_ap_reset(void)
return 0;
}
int google_chromeec_regulator_enable(uint32_t index, uint8_t enable)
{
struct ec_params_regulator_enable params = {
.index = index,
.enable = enable,
};
struct chromeec_command cmd = {
.cmd_code = EC_CMD_REGULATOR_ENABLE,
.cmd_version = 0,
.cmd_data_in = &params,
.cmd_size_in = sizeof(params),
.cmd_data_out = NULL,
.cmd_size_out = 0,
.cmd_dev_index = 0,
};
if (google_chromeec_command(&cmd))
return -1;
return 0;
}
int google_chromeec_regulator_is_enabled(uint32_t index, uint8_t *enabled)
{
struct ec_params_regulator_is_enabled params = {
.index = index,
};
struct ec_response_regulator_is_enabled resp = {};
struct chromeec_command cmd = {
.cmd_code = EC_CMD_REGULATOR_IS_ENABLED,
.cmd_version = 0,
.cmd_data_in = &params,
.cmd_size_in = sizeof(params),
.cmd_data_out = &resp,
.cmd_size_out = sizeof(resp),
.cmd_dev_index = 0,
};
if (google_chromeec_command(&cmd))
return -1;
*enabled = resp.enabled;
return 0;
}
int google_chromeec_regulator_set_voltage(uint32_t index, uint32_t min_mv,
uint32_t max_mv)
{

20
src/ec/google/chromeec/ec.h
View File

@ -353,8 +353,27 @@ int google_chromeec_get_keybd_config(struct ec_response_keybd_config *keybd);
*/
int google_chromeec_ap_reset(void);
/**
* Configure the regulator as enabled / disabled.
*
* @param index Regulator ID
* @param enable Set to enable / disable the regulator
* @return 0 on success, -1 on error
*/
int google_chromeec_regulator_enable(uint32_t index, uint8_t enable);
/**
* Query if the regulator is enabled.
*
* @param index Regulator ID
* @param *enabled If successful, enabled indicates enable/disable status.
* @return 0 on success, -1 on error
*/
int google_chromeec_regulator_is_enabled(uint32_t index, uint8_t *enabled);
/**
* Set voltage for the voltage regulator within the range specified.
*
* @param index Regulator ID
* @param min_mv Minimum voltage
* @param max_mv Maximum voltage
@ -365,6 +384,7 @@ int google_chromeec_regulator_set_voltage(uint32_t index, uint32_t min_mv,
/**
* Get the currently configured voltage for the voltage regulator.
*
* @param index Regulator ID
* @param *voltage_mv If successful, voltage_mv is filled with current voltage
* @return 0 on success, -1 on error