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path: root/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-nvm-parse.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-nvm-parse.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
index 3b8e85e51002..d82984912e04 100644
--- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
@@ -580,13 +580,15 @@ static void iwl_set_hw_address_family_8000(struct device *dev,
IWL_ERR_DEV(dev, "mac address is not found\n");
}
+#define IWL_4165_DEVICE_ID 0x5501
+
struct iwl_nvm_data *
iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
const __le16 *nvm_hw, const __le16 *nvm_sw,
const __le16 *nvm_calib, const __le16 *regulatory,
const __le16 *mac_override, const __le16 *phy_sku,
u8 tx_chains, u8 rx_chains, bool lar_fw_supported,
- u32 mac_addr0, u32 mac_addr1)
+ u32 mac_addr0, u32 mac_addr1, u32 hw_id)
{
struct iwl_nvm_data *data;
u32 sku;
@@ -625,6 +627,17 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
(sku & NVM_SKU_CAP_11AC_ENABLE);
data->sku_cap_mimo_disabled = sku & NVM_SKU_CAP_MIMO_DISABLE;
+ /*
+ * OTP 0x52 bug work around
+ * define antenna 1x1 according to MIMO disabled
+ */
+ if (hw_id == IWL_4165_DEVICE_ID && data->sku_cap_mimo_disabled) {
+ data->valid_tx_ant = ANT_B;
+ data->valid_rx_ant = ANT_B;
+ tx_chains = ANT_B;
+ rx_chains = ANT_B;
+ }
+
data->n_hw_addrs = iwl_get_n_hw_addrs(cfg, nvm_sw);
if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {