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ath9k: Handle unsupported MAC versions early 

There is no point in trying to bring up the chip when
the MAC version is not present in the supported list.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2013-12-28 09:47:11 +05:30 committed by John W. Linville
parent e4ef276303
commit de82582b9a
1 changed files with 24 additions and 24 deletions
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48
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -474,6 +474,30 @@ static int __ath9k_hw_init(struct ath_hw *ah)
ath9k_hw_read_revisions(ah);
switch (ah->hw_version.macVersion) {
case AR_SREV_VERSION_5416_PCI:
case AR_SREV_VERSION_5416_PCIE:
case AR_SREV_VERSION_9160:
case AR_SREV_VERSION_9100:
case AR_SREV_VERSION_9280:
case AR_SREV_VERSION_9285:
case AR_SREV_VERSION_9287:
case AR_SREV_VERSION_9271:
case AR_SREV_VERSION_9300:
case AR_SREV_VERSION_9330:
case AR_SREV_VERSION_9485:
case AR_SREV_VERSION_9340:
case AR_SREV_VERSION_9462:
case AR_SREV_VERSION_9550:
case AR_SREV_VERSION_9565:
break;
default:
ath_err(common,
"Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
ah->hw_version.macVersion, ah->hw_version.macRev);
return -EOPNOTSUPP;
}
/*
* Read back AR_WA into a permanent copy and set bits 14 and 17.
* We need to do this to avoid RMW of this register. We cannot
@ -527,30 +551,6 @@ static int __ath9k_hw_init(struct ath_hw *ah)
else
ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
switch (ah->hw_version.macVersion) {
case AR_SREV_VERSION_5416_PCI:
case AR_SREV_VERSION_5416_PCIE:
case AR_SREV_VERSION_9160:
case AR_SREV_VERSION_9100:
case AR_SREV_VERSION_9280:
case AR_SREV_VERSION_9285:
case AR_SREV_VERSION_9287:
case AR_SREV_VERSION_9271:
case AR_SREV_VERSION_9300:
case AR_SREV_VERSION_9330:
case AR_SREV_VERSION_9485:
case AR_SREV_VERSION_9340:
case AR_SREV_VERSION_9462:
case AR_SREV_VERSION_9550:
case AR_SREV_VERSION_9565:
break;
default:
ath_err(common,
"Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
ah->hw_version.macVersion, ah->hw_version.macRev);
return -EOPNOTSUPP;
}
if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
AR_SREV_9330(ah) || AR_SREV_9550(ah))
ah->is_pciexpress = false;