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iwlwifi: don't send PPAG command if disabled

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we should not send the PPAG (Per-Platform Antenna Gain)
command to FW unless the platform has this ACPI table and it was
read and validated during the init flow. also no need to send the
command if the feature is disabled, so check if enabled before
sending, as if there is no valid table the feature is disabled.

Signed-off-by: Gil Adam <gil.adam@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Gil Adam 2019-11-07 21:23:21 +02:00 committed by Luca Coelho
parent 33328bfab8
commit 160bab4341
1 changed files with 6 additions and 2 deletions
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8
drivers/net/wireless/intel/iwlwifi/mvm/fw.c
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@ -841,9 +841,13 @@ int iwl_mvm_ppag_send_cmd(struct iwl_mvm *mvm)
return 0;
}
if (!mvm->fwrt.ppag_table.enabled) {
IWL_DEBUG_RADIO(mvm,
"PPAG not enabled, command not sent.\n");
return 0;
}
IWL_DEBUG_RADIO(mvm, "Sending PER_PLATFORM_ANT_GAIN_CMD\n");
IWL_DEBUG_RADIO(mvm, "PPAG is %s\n",
mvm->fwrt.ppag_table.enabled ? "enabled" : "disabled");
for (i = 0; i < ACPI_PPAG_NUM_CHAINS; i++) {
for (j = 0; j < ACPI_PPAG_NUM_SUB_BANDS; j++) {