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

   1 --- a/drivers/net/wireless/ath/ath9k/pci.c
   2 +++ b/drivers/net/wireless/ath/ath9k/pci.c
   3 @@ -16,6 +16,7 @@
   4
   5  #include <linux/nl80211.h>
   6  #include <linux/pci.h>
   7 +#include <linux/ath9k_platform.h>
   8  #include "ath9k.h"
   9
  10  static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
  11 @@ -52,21 +53,36 @@ static void ath_pci_read_cachesize(struc
  12
  13  static bool ath_pci_eeprom_read(struct ath_common *common, u32 off, u16 *data)
  14  {
  15 -       struct ath_hw *ah = (struct ath_hw *) common->ah;
  16 +       struct ath_softc *sc = (struct ath_softc *) common->priv;
  17 +       struct ath9k_platform_data *pdata = sc->dev->platform_data;
  18
  19 -       common->ops->read(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
  20 +       if (pdata) {
  21 +               if (off >= (ARRAY_SIZE(pdata->eeprom_data))) {
  22 +                       ath_print(common, ATH_DBG_FATAL,
  23 +                                 "%s: eeprom read failed, offset %08x "
  24 +                                 "is out of range\n",
  25 +                                 __func__, off);
  26 +               }
  27 +
  28 +               *data = pdata->eeprom_data[off];
  29 +       } else {
  30 +               struct ath_hw *ah = (struct ath_hw *) common->ah;
  31 +
  32 +               common->ops->read(ah, AR5416_EEPROM_OFFSET +
  33 +                                     (off << AR5416_EEPROM_S));
  34 +
  35 +               if (!ath9k_hw_wait(ah,
  36 +                                  AR_EEPROM_STATUS_DATA,
  37 +                                  AR_EEPROM_STATUS_DATA_BUSY |
  38 +                                  AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
  39 +                                  AH_WAIT_TIMEOUT)) {
  40 +                       return false;
  41 +               }
  42
  43 -       if (!ath9k_hw_wait(ah,
  44 -                          AR_EEPROM_STATUS_DATA,
  45 -                          AR_EEPROM_STATUS_DATA_BUSY |
  46 -                          AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
  47 -                          AH_WAIT_TIMEOUT)) {
  48 -               return false;
  49 +               *data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
  50 +                          AR_EEPROM_STATUS_DATA_VAL);
  51         }
  52
  53 -       *data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
  54 -                  AR_EEPROM_STATUS_DATA_VAL);
  55 -
  56         return true;
  57  }
  58