diff options
Diffstat (limited to 'src/drivers/i2c')
| -rw-r--r-- | src/drivers/i2c/max98390/chip.h | 1 | ||||
| -rw-r--r-- | src/drivers/i2c/max98390/max98390.c | 23 |
2 files changed, 22 insertions, 2 deletions
diff --git a/src/drivers/i2c/max98390/chip.h b/src/drivers/i2c/max98390/chip.h index 193a17412c..d01237b418 100644 --- a/src/drivers/i2c/max98390/chip.h +++ b/src/drivers/i2c/max98390/chip.h @@ -13,4 +13,5 @@ struct drivers_i2c_max98390_config { const char *r0_calib_key; /* The VPD key of temperature during speaker calibration. */ const char *temperature_calib_key; + const char *dsm_param_file_name; }; diff --git a/src/drivers/i2c/max98390/max98390.c b/src/drivers/i2c/max98390/max98390.c index c216391e04..4beb6c29b7 100644 --- a/src/drivers/i2c/max98390/max98390.c +++ b/src/drivers/i2c/max98390/max98390.c @@ -25,8 +25,9 @@ static void max98390_fill_ssdt(const struct device *dev) .speed = I2C_SPEED_FAST, .resource = scope, }; - struct acpi_dp *dp; + struct acpi_dp *dp = NULL; uint64_t r0_value, temp_value; + char dsm_name[80] = {}; if (!scope) return; @@ -58,11 +59,29 @@ static void max98390_fill_ssdt(const struct device *dev) dp = acpi_dp_new_table("_DSD"); MAX98390_DP_INT("r0_calib", r0_value); MAX98390_DP_INT("temperature_calib", temp_value); - acpi_dp_write(dp); printk(BIOS_INFO, "set dsm_calib properties\n"); } } + if (CONFIG(CHROMEOS_DSM_PARAM_FILE_NAME)) { + if (config->dsm_param_file_name) { + if (!dp) + dp = acpi_dp_new_table("_DSD"); + + size_t chars = snprintf(dsm_name, sizeof(dsm_name), "%s_%s_%s.bin", + config->dsm_param_file_name, CONFIG_MAINBOARD_VENDOR, + CONFIG_MAINBOARD_PART_NUMBER); + + if (chars >= sizeof(dsm_name)) + printk(BIOS_ERR, "ERROR: String too long in %s\n", __func__); + + acpi_dp_add_string(dp, "maxim,dsm_param_name", dsm_name); + } + } + + if (dp) + acpi_dp_write(dp); + acpigen_pop_len(); /* Device */ acpigen_pop_len(); /* Scope */ |