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ath9k_hw: add pcieSerDesWrite to disable SERDES ASPM tweaks 

This can be useful during testing of new ASPM tweaks which often
have to be done through the PCI Serializer-Deserializer (SERDES).

Cc: Aeolus Yang <aeolus.yang@atheros.com>
Cc: Madhan Jaganathan <madhan.jaganathan@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2010-06-21 18:38:49 -04:00 committed by John W. Linville
parent 653fe37122
commit 6a0ec30ad4
3 changed files with 3 additions and 1 deletions
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2
drivers/net/wireless/ath/ath9k/ar9003_hw.c
View File

@ -303,7 +303,7 @@ static void ar9003_hw_configpcipowersave(struct ath_hw *ah,
* Configire PCIE after Ini init. SERDES values now come from ini file
* This enables PCIe low power mode.
*/
if (AR_SREV_9300_20_OR_LATER(ah)) {
if (ah->config.pcieSerDesWrite) {
unsigned int i;
for (i = 0; i < ah->iniPcieSerdesLowPower.ia_rows; i++) {

1
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -388,6 +388,7 @@ static void ath9k_hw_init_config(struct ath_hw *ah)
ah->config.ht_enable = 0;
ah->config.rx_intr_mitigation = true;
ah->config.pcieSerDesWrite = true;
/*
* We need this for PCI devices only (Cardbus, PCI, miniPCI)

1
drivers/net/wireless/ath/ath9k/hw.h
View File

@ -235,6 +235,7 @@ struct ath9k_ops_config {
int ack_6mb;
u32 cwm_ignore_extcca;
u8 pcie_powersave_enable;
bool pcieSerDesWrite;
u8 pcie_clock_req;
u32 pcie_waen;
u8 analog_shiftreg;