wifi: iwlwifi: fw: skip PPAG for JF

For JF RFs we don't support PPAG, but many firmware
images lie about it. Always skip support for JF to
avoid firmware errors when sending the command.

Reported-and-tested-by: Íñigo Huguet <ihuguet@redhat.com>
Link: https://lore.kernel.org/linux-wireless/CACT4oufQsqHGp6bah2c4+jPn2wG1oZqY=UKa_TmPx=F6Lxng8Q@mail.gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221213225723.2a43415d8990.I9ac210740a45b41f1b2e15274e1daf4284f2808a@changeid

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index e6d64152c81a75e6d346c8278bc0590cab22a9fb..a02e5a67b7066b0498e0e4f81c9e41685675a6de 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -1106,6 +1106,11 @@ int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt, union iwl_ppag_table_cmd *c
         int i, j, num_sub_bands;
         s8 *gain;
 
+       /* many firmware images for JF lie about this */
+       if (CSR_HW_RFID_TYPE(fwrt->trans->hw_rf_id) ==
+           CSR_HW_RFID_TYPE(CSR_HW_RF_ID_TYPE_JF))
+               return -EOPNOTSUPP;
+
         if (!fw_has_capa(&fwrt->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_PPAG)) {
                 IWL_DEBUG_RADIO(fwrt,
                                 "PPAG capability not supported by FW, command not sent.\n");