iwlwifi: acpi: fill in WGDS table with defaults

The tables we store are the larger of all the revisions, so we need to
fill in the values that we don't get from ACPI when using older
revisions.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210819183728.01b12461a30b.I08d1f9154f26eca25c44616efdb5223bcc1935f3@changeidSigned-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/fw/acpi.c

@@ -745,9 +745,18 @@ int iwl_sar_get_wgds_table(struct iwl_fw_runtime *fwrt)
 read_table:
 	fwrt->geo_rev = tbl_rev;
 	for (i = 0; i < ACPI_NUM_GEO_PROFILES; i++) {
-		for (j = 0; j < num_bands; j++) {
+		for (j = 0; j < ACPI_GEO_NUM_BANDS_REV2; j++) {
 			union acpi_object *entry;
 
+			/*
+			 * num_bands is either 2 or 3, if it's only 2 then
+			 * fill the third band (6 GHz) with the values from
+			 * 5 GHz (second band)
+			 */
+			if (j >= num_bands) {
+				fwrt->geo_profiles[i].bands[j].max =
+					fwrt->geo_profiles[i].bands[1].max;
+			} else {
 				entry = &wifi_pkg->package.elements[idx++];
 				if (entry->type != ACPI_TYPE_INTEGER ||
 				    entry->integer.value > U8_MAX) {
@@ -757,8 +766,14 @@ int iwl_sar_get_wgds_table(struct iwl_fw_runtime *fwrt)
 
 				fwrt->geo_profiles[i].bands[j].max =
 					entry->integer.value;
+			}
 
 			for (k = 0; k < ACPI_GEO_NUM_CHAINS; k++) {
+				/* same here as above */
+				if (j >= num_bands) {
+					fwrt->geo_profiles[i].bands[j].chains[k] =
+						fwrt->geo_profiles[i].bands[1].chains[k];
+				} else {
 					entry = &wifi_pkg->package.elements[idx++];
 					if (entry->type != ACPI_TYPE_INTEGER ||
 					    entry->integer.value > U8_MAX) {
@@ -771,6 +786,7 @@ int iwl_sar_get_wgds_table(struct iwl_fw_runtime *fwrt)
 				}
 			}
 		}
+	}
 
 	ret = 0;
 out_free: