openwrt-xburst/package/mac80211/patches/405-ath9k-read-eeprom-data-from-platform-data-on-pci-bus.patch

--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -16,6 +16,7 @@
 
 #include <linux/nl80211.h>
 #include <linux/pci.h>
+#include <linux/ath9k_platform.h>
 #include "ath9k.h"
 
 static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
@@ -52,21 +53,36 @@ static void ath_pci_read_cachesize(struc
 
 static bool ath_pci_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 {
-	struct ath_hw *ah = (struct ath_hw *) common->ah;
+	struct ath_softc *sc = (struct ath_softc *) common->priv;
+	struct ath9k_platform_data *pdata = sc->dev->platform_data;
 
-	common->ops->read(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
+	if (pdata) {
+		if (off >= (ARRAY_SIZE(pdata->eeprom_data))) {
+			ath_print(common, ATH_DBG_FATAL,
+				  "%s: eeprom read failed, offset %08x "
+				  "is out of range\n",
+				  __func__, off);
+		}
+
+		*data = pdata->eeprom_data[off];
+	} else {
+		struct ath_hw *ah = (struct ath_hw *) common->ah;
+
+		common->ops->read(ah, AR5416_EEPROM_OFFSET +
+				      (off << AR5416_EEPROM_S));
+
+		if (!ath9k_hw_wait(ah,
+				   AR_EEPROM_STATUS_DATA,
+				   AR_EEPROM_STATUS_DATA_BUSY |
+				   AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
+				   AH_WAIT_TIMEOUT)) {
+			return false;
+		}
 
-	if (!ath9k_hw_wait(ah,
-			   AR_EEPROM_STATUS_DATA,
-			   AR_EEPROM_STATUS_DATA_BUSY |
-			   AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
-			   AH_WAIT_TIMEOUT)) {
-		return false;
+		*data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
+			   AR_EEPROM_STATUS_DATA_VAL);
 	}
 
-	*data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
-		   AR_EEPROM_STATUS_DATA_VAL);
-
 	return true;
 }