[source] ath9k: fix issues with external reset on AR913x

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/c9c68c717769a7560b46fd77d050b08ffb94f241

commit c9c68c717769a7560b46fd77d050b08ffb94f241
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue Dec 27 20:54:15 2016 +0100

    ath9k: fix issues with external reset on AR913x
    
    An external reset patch for AR955x accidentally led to external reset
    being issued twice on AR913x, once before the RTC reset and once after.
    This may be causing some stability issues.
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 .../patches/315-ath9k_hw-issue-external-reset-for-QCA955x.patch   | 5 +++--
 ...325-ath9k-fix-ath9k_hw_gpio_get-to-return-0-or-1-on-succ.patch | 2 +-
 package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch      | 4 ++--
 .../mac80211/patches/544-ath9k-ar933x-usb-hang-workaround.patch   | 8 ++++----
 4 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/package/kernel/mac80211/patches/315-ath9k_hw-issue-external-reset-for-QCA955x.patch b/package/kernel/mac80211/patches/315-ath9k_hw-issue-external-reset-for-QCA955x.patch
index 6a958a4..34d7d3b 100644
--- a/package/kernel/mac80211/patches/315-ath9k_hw-issue-external-reset-for-QCA955x.patch
+++ b/package/kernel/mac80211/patches/315-ath9k_hw-issue-external-reset-for-QCA955x.patch
@@ -91,7 +91,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  	return true;
  }
  
-@@ -1356,24 +1373,23 @@ static bool ath9k_hw_set_reset(struct at
+@@ -1356,24 +1373,24 @@ static bool ath9k_hw_set_reset(struct at
  			rst_flags |= AR_RTC_RC_MAC_COLD;
  	}
  
@@ -115,7 +115,8 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
 -		REG_CLR_BIT(ah, AR_CFG, AR_CFG_HALT_REQ);
  	}
  
-+	ath9k_hw_external_reset(ah, type);
++	if (!AR_SREV_9100(ah))
++		ath9k_hw_external_reset(ah, type);
 +
 +	if (AR_SREV_9300(ah) || AR_SREV_9580(ah))
 +		REG_CLR_BIT(ah, AR_CFG, AR_CFG_HALT_REQ);
diff --git a/package/kernel/mac80211/patches/325-ath9k-fix-ath9k_hw_gpio_get-to-return-0-or-1-on-succ.patch b/package/kernel/mac80211/patches/325-ath9k-fix-ath9k_hw_gpio_get-to-return-0-or-1-on-succ.patch
index a966a16..012a49d 100644
--- a/package/kernel/mac80211/patches/325-ath9k-fix-ath9k_hw_gpio_get-to-return-0-or-1-on-succ.patch
+++ b/package/kernel/mac80211/patches/325-ath9k-fix-ath9k_hw_gpio_get-to-return-0-or-1-on-succ.patch
@@ -18,7 +18,7 @@ Signed-off-by: Matthias Schiffer <mschiffer at universe-factory.net>
 
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -2812,7 +2812,7 @@ u32 ath9k_hw_gpio_get(struct ath_hw *ah,
+@@ -2813,7 +2813,7 @@ u32 ath9k_hw_gpio_get(struct ath_hw *ah,
  		WARN_ON(1);
  	}
  
diff --git a/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch b/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch
index a820e16..08acc0e 100644
--- a/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch
+++ b/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch
@@ -94,7 +94,7 @@
  struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -1837,6 +1837,20 @@ u32 ath9k_hw_get_tsf_offset(struct times
+@@ -1838,6 +1838,20 @@ u32 ath9k_hw_get_tsf_offset(struct times
  }
  EXPORT_SYMBOL(ath9k_hw_get_tsf_offset);
  
@@ -115,7 +115,7 @@
  int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
  		   struct ath9k_hw_cal_data *caldata, bool fastcc)
  {
-@@ -2045,6 +2059,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+@@ -2046,6 +2060,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
  		ar9003_hw_disable_phy_restart(ah);
  
  	ath9k_hw_apply_gpio_override(ah);
diff --git a/package/kernel/mac80211/patches/544-ath9k-ar933x-usb-hang-workaround.patch b/package/kernel/mac80211/patches/544-ath9k-ar933x-usb-hang-workaround.patch
index bb4c121..200a3a2 100644
--- a/package/kernel/mac80211/patches/544-ath9k-ar933x-usb-hang-workaround.patch
+++ b/package/kernel/mac80211/patches/544-ath9k-ar933x-usb-hang-workaround.patch
@@ -20,7 +20,7 @@
  /******************/
  /* Chip Revisions */
  /******************/
-@@ -1413,6 +1426,9 @@ static bool ath9k_hw_set_reset(struct at
+@@ -1414,6 +1427,9 @@ static bool ath9k_hw_set_reset(struct at
  		udelay(50);
  	}
  
@@ -30,7 +30,7 @@
  	return true;
  }
  
-@@ -1512,6 +1528,9 @@ static bool ath9k_hw_chip_reset(struct a
+@@ -1513,6 +1529,9 @@ static bool ath9k_hw_chip_reset(struct a
  		ar9003_hw_internal_regulator_apply(ah);
  	ath9k_hw_init_pll(ah, chan);
  
@@ -40,7 +40,7 @@
  	return true;
  }
  
-@@ -1815,8 +1834,14 @@ static int ath9k_hw_do_fastcc(struct ath
+@@ -1816,8 +1835,14 @@ static int ath9k_hw_do_fastcc(struct ath
  	if (AR_SREV_9271(ah))
  		ar9002_hw_load_ani_reg(ah, chan);
  
@@ -55,7 +55,7 @@
  	return -EINVAL;
  }
  
-@@ -2070,6 +2095,9 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+@@ -2071,6 +2096,9 @@ int ath9k_hw_reset(struct ath_hw *ah, st
  		ath9k_hw_set_radar_params(ah);
  	}