diff options
| author | Yidi Lin <yidi.lin@mediatek.com> | 2020-09-21 20:25:54 +0800 |
|---|---|---|
| committer | Hung-Te Lin <hungte@chromium.org> | 2020-10-20 06:58:11 +0000 |
| commit | 79a812e5366586eaacb36b09d592adfaace3dafc (patch) | |
| tree | db2c3a1ee2ebcb3d534755233962fa149aac7566 | |
| parent | 5611cfd55f6ad558a000a02e84e65af42316edd5 (diff) | |
| download | coreboot-79a812e5366586eaacb36b09d592adfaace3dafc.tar.xz | |
ec/google/chromeec: Add wrappers to get/set the voltage
Add APIs to get and set the voltage for the target regulator.
BUG=b:147789962
BRANCH=none
TEST=emerge-asurada coreboot
Change-Id: I0e56df45fc3309c387b9949534334eadefb616b2
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46404
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 47 | ||||
| -rw-r--r-- | src/ec/google/chromeec/ec.h | 18 |
2 files changed, 65 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index 82de088401..39cf89512f 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -1616,3 +1616,50 @@ int google_chromeec_ap_reset(void) return 0; } + +int google_chromeec_regulator_set_voltage(uint32_t index, uint32_t min_mv, + uint32_t max_mv) +{ + struct ec_params_regulator_set_voltage params = { + .index = index, + .min_mv = min_mv, + .max_mv = max_mv, + }; + struct chromeec_command cmd = { + .cmd_code = EC_CMD_REGULATOR_SET_VOLTAGE, + .cmd_version = 0, + .cmd_data_in = ¶ms, + .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_get_voltage(uint32_t index, uint32_t *voltage_mv) +{ + struct ec_params_regulator_get_voltage params = { + .index = index, + }; + struct ec_response_regulator_get_voltage resp = {}; + struct chromeec_command cmd = { + .cmd_code = EC_CMD_REGULATOR_GET_VOLTAGE, + .cmd_version = 0, + .cmd_data_in = ¶ms, + .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; + + *voltage_mv = resp.voltage_mv; + return 0; +} diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h index ad3768c025..c2ceff831f 100644 --- a/src/ec/google/chromeec/ec.h +++ b/src/ec/google/chromeec/ec.h @@ -353,6 +353,24 @@ int google_chromeec_get_keybd_config(struct ec_response_keybd_config *keybd); */ int google_chromeec_ap_reset(void); +/** + * Set voltage for the voltage regulator within the range specified. + * @param index Regulator ID + * @param min_mv Minimum voltage + * @param max_mv Maximum voltage + * @return 0 on success, -1 on error + */ +int google_chromeec_regulator_set_voltage(uint32_t index, uint32_t min_mv, + uint32_t max_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 + */ +int google_chromeec_regulator_get_voltage(uint32_t index, uint32_t *voltage_mv); + #if CONFIG(HAVE_ACPI_TABLES) /** * Writes USB Type-C PD related information to the SSDT |