package/mac80211/patches/570-ath9k-add-external_reset-callback-to-ath9k_platfom_d.patch

   1 --- a/drivers/net/wireless/ath/ath9k/hw.c
   2 +++ b/drivers/net/wireless/ath/ath9k/hw.c
   3 @@ -1170,6 +1170,41 @@ static bool ath9k_hw_set_reset(struct at
   4                         rst_flags |= AR_RTC_RC_MAC_COLD;
   5         }
   6
   7 +       if (AR_SREV_9330(ah)) {
   8 +               int npend = 0;
   9 +               int i;
  10 +
  11 +               /* AR9330 WAR:
  12 +                * call external reset function to reset WMAC if:
  13 +                * - doing a cold reset
  14 +                * - we have pending frames in the TX queues
  15 +                */
  16 +
  17 +               for (i = 0; i < AR_NUM_QCU; i++) {
  18 +                       npend = ath9k_hw_numtxpending(ah, i);
  19 +                       if (npend)
  20 +                               break;
  21 +               }
  22 +
  23 +               if (ah->external_reset &&
  24 +                   (npend || type == ATH9K_RESET_COLD)) {
  25 +                       int reset_err = 0;
  26 +
  27 +                       ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
  28 +                               "reset MAC via external reset\n");
  29 +
  30 +                       reset_err = ah->external_reset();
  31 +                       if (reset_err) {
  32 +                               ath_err(ath9k_hw_common(ah),
  33 +                                       "External reset failed, err=%d\n",
  34 +                                       reset_err);
  35 +                               return false;
  36 +                       }
  37 +
  38 +                       REG_WRITE(ah, AR_RTC_RESET, 1);
  39 +               }
  40 +       }
  41 +
  42         REG_WRITE(ah, AR_RTC_RC, rst_flags);
  43
  44         REGWRITE_BUFFER_FLUSH(ah);
  45 --- a/drivers/net/wireless/ath/ath9k/hw.h
  46 +++ b/drivers/net/wireless/ath/ath9k/hw.h
  47 @@ -864,6 +864,7 @@ struct ath_hw {
  48
  49         bool is_clk_25mhz;
  50         int (*get_mac_revision)(void);
  51 +       int (*external_reset)(void);
  52  };
  53
  54  struct ath_bus_ops {
  55 --- a/drivers/net/wireless/ath/ath9k/init.c
  56 +++ b/drivers/net/wireless/ath/ath9k/init.c
  57 @@ -576,6 +576,7 @@ static int ath9k_init_softc(u16 devid, s
  58                 sc->sc_ah->led_pin = pdata->led_pin;
  59                 ah->is_clk_25mhz = pdata->is_clk_25mhz;
  60                 ah->get_mac_revision = pdata->get_mac_revision;
  61 +               ah->external_reset = pdata->external_reset;
  62         }
  63
  64         common = ath9k_hw_common(ah);
  65 --- a/include/linux/ath9k_platform.h
  66 +++ b/include/linux/ath9k_platform.h
  67 @@ -31,6 +31,7 @@ struct ath9k_platform_data {
  68
  69         bool is_clk_25mhz;
  70         int (*get_mac_revision)(void);
  71 +       int (*external_reset)(void);
  72  };
  73
  74  #endif /* _LINUX_ATH9K_PLATFORM_H */