From dc2b94a111e0fb3779a86dd8d303ad842880f869 Mon Sep 17 00:00:00 2001 From: Miri Korenblit Date: Thu, 1 Feb 2024 16:17:33 +0200 Subject: wifi: iwlwifi: rfi: use a single DSM function for all RFI configurations RFI configuration moved from internal guid to the wifi guid, DSM function 11. Update reading RFI configuration from BIOS. Signed-off-by: Anjaneyulu Signed-off-by: Miri Korenblit Reviewed-by: Gregory Greenman Link: https://msgid.link/20240201155157.f4e62435310d.I4f9b6860dd8e3c7ae1f816be5ff8b5967eee266f@changeid Signed-off-by: Johannes Berg --- drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 43 +++++++++++++++++------------ 1 file changed, 26 insertions(+), 17 deletions(-) (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/fw.c') diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c index fea2e8a5102d..e9b5dc7ee8c7 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c @@ -1203,28 +1203,37 @@ static void iwl_mvm_tas_init(struct iwl_mvm *mvm) #ifdef CONFIG_ACPI -static u8 iwl_mvm_eval_dsm_rfi(struct iwl_mvm *mvm) +static bool iwl_mvm_eval_dsm_rfi(struct iwl_mvm *mvm) { - u8 value; - int ret = iwl_acpi_get_dsm_u8(mvm->fwrt.dev, 0, DSM_RFI_FUNC_ENABLE, - &iwl_rfi_guid, &value); + u8 value = 0; + /* default behaviour is disabled */ + bool bios_enable_rfi = false; + int ret = iwl_acpi_get_dsm_u8(mvm->fwrt.dev, 0, + DSM_FUNC_RFI_CONFIG, &iwl_guid, + &value); if (ret < 0) { IWL_DEBUG_RADIO(mvm, "Failed to get DSM RFI, ret=%d\n", ret); + return bios_enable_rfi; + } - } else if (value >= DSM_VALUE_RFI_MAX) { - IWL_DEBUG_RADIO(mvm, "DSM RFI got invalid value, ret=%d\n", - value); - - } else if (value == DSM_VALUE_RFI_ENABLE) { + value &= DSM_VALUE_RFI_DISABLE; + /* RFI BIOS CONFIG value can be 0 or 3 only. + * i.e 0 means DDR and DLVR enabled. 3 means DDR and DLVR disabled. + * 1 and 2 are invalid BIOS configurations, So, it's not possible to + * disable ddr/dlvr separately. + */ + if (!value) { IWL_DEBUG_RADIO(mvm, "DSM RFI is evaluated to enable\n"); - return DSM_VALUE_RFI_ENABLE; + bios_enable_rfi = true; + } else if (value == DSM_VALUE_RFI_DISABLE) { + IWL_DEBUG_RADIO(mvm, "DSM RFI is evaluated to disable\n"); + } else { + IWL_DEBUG_RADIO(mvm, + "DSM RFI got invalid value, value=%d\n", value); } - IWL_DEBUG_RADIO(mvm, "DSM RFI is disabled\n"); - - /* default behaviour is disabled */ - return DSM_VALUE_RFI_DISABLE; + return bios_enable_rfi; } static void iwl_mvm_lari_cfg(struct iwl_mvm *mvm) @@ -1347,9 +1356,9 @@ static void iwl_mvm_lari_cfg(struct iwl_mvm *mvm) { } -static u8 iwl_mvm_eval_dsm_rfi(struct iwl_mvm *mvm) +static bool iwl_mvm_eval_dsm_rfi(struct iwl_mvm *mvm) { - return DSM_VALUE_RFI_DISABLE; + return false; } #endif /* CONFIG_ACPI */ @@ -1727,7 +1736,7 @@ int iwl_mvm_up(struct iwl_mvm *mvm) iwl_mvm_uats_init(mvm); if (iwl_rfi_supported(mvm)) { - if (iwl_mvm_eval_dsm_rfi(mvm) == DSM_VALUE_RFI_ENABLE) + if (iwl_mvm_eval_dsm_rfi(mvm)) iwl_rfi_send_config_cmd(mvm, NULL); } -- cgit