diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/acpi.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index b26f90e52256..e83ce797a68b 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -1011,6 +1011,7 @@ __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt) { int ret; u8 value; + u32 val; __le32 config_bitmap = 0; /* @@ -1039,6 +1040,23 @@ __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt) cpu_to_le32(LARI_CONFIG_CHANGE_ETSI_TO_DISABLED_MSK); } + if (fw_has_capa(&fwrt->fw->ucode_capa, + IWL_UCODE_TLV_CAPA_CHINA_22_REG_SUPPORT)) { + /* + ** Evaluate func 'DSM_FUNC_REGULATORY_CONFIG' + */ + ret = iwl_acpi_get_dsm_u32(fwrt->dev, 0, + DSM_FUNC_REGULATORY_CONFIG, + &iwl_guid, &val); + /* + * China 2022 enable if the BIOS object does not exist or + * if it is enabled in BIOS. + */ + if (ret < 0 || val & DSM_MASK_CHINA_22_REG) + config_bitmap |= + cpu_to_le32(LARI_CONFIG_ENABLE_CHINA_22_REG_SUPPORT_MSK); + } + return config_bitmap; } IWL_EXPORT_SYMBOL(iwl_acpi_get_lari_config_bitmap); |