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path: root/package/kernel/mac80211/patches/557-ath9k-disable-bands-via-dt.patch
blob: ae447ce1f5df9a139352c1e03cdcc1b669bc5a7f (plain)
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--- a/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
+++ b/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
@@ -34,6 +34,14 @@ Optional properties:
 			ath9k wireless chip (in this case the calibration /
 			EEPROM data will be loaded from userspace using the
 			kernel firmware loader).
+- qca,disable-2ghz: Overrides the settings from the EEPROM and disables the
+			2.4GHz band. Setting this property is only needed
+			when the RF circuit does not support the 2.4GHz band
+			while it is enabled nevertheless in the EEPROM.
+- qca,disable-5ghz: Overrides the settings from the EEPROM and disables the
+			5GHz band. Setting this property is only needed when
+			the RF circuit does not support the 5GHz band while
+			it is enabled nevertheless in the EEPROM.
 - mac-address: See ethernet.txt in the parent directory
 - local-mac-address: See ethernet.txt in the parent directory
 
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -571,6 +571,12 @@ static int ath9k_of_init(struct ath_soft
 
 	ath_dbg(common, CONFIG, "parsing configuration from OF node\n");
 
+	if (of_property_read_bool(np, "qca,disable-2ghz"))
+		ah->disable_2ghz = true;
+
+	if (of_property_read_bool(np, "qca,disable-5ghz"))
+		ah->disable_5ghz = true;
+
 	if (of_property_read_bool(np, "qca,no-eeprom")) {
 		/* ath9k-eeprom-<bus>-<id>.bin */
 		scnprintf(eeprom_name, sizeof(eeprom_name),