diff options
| author | Janusz Dziedzic <janusz.dziedzic@tieto.com> | 2015-05-18 09:38:16 +0000 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2015-05-22 13:39:15 +0300 |
| commit | 76d870ed09ab34154454b1adb823ae75f173c2d2 (patch) | |
| tree | 6827c468da7b79d213f171f5ac603e7b8673f196 /drivers/net/wireless/ath/ath10k/pci.h | |
| parent | 80714b09bc574c5b23e50264e76e6e0f78d23549 (diff) | |
| download | lwn-76d870ed09ab34154454b1adb823ae75f173c2d2.tar.gz lwn-76d870ed09ab34154454b1adb823ae75f173c2d2.zip | |
ath10k: enable ASPM
It is actually safe to enable ASPM after the
device is booted up.
This reduces power drain of QCA61X4 when driver is
simply loaded (no interface is up) from 31mA to
14mA. QCA988X wasn't measured but doesn't seem to
regress in any other way.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/pci.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h index bddf54320160..ee2173d61257 100644 --- a/drivers/net/wireless/ath/ath10k/pci.h +++ b/drivers/net/wireless/ath/ath10k/pci.h @@ -185,6 +185,12 @@ struct ath10k_pci { /* Map CE id to ce_state */ struct ath10k_ce_pipe ce_states[CE_COUNT_MAX]; struct timer_list rx_post_retry; + + /* Due to HW quirks it is recommended to disable ASPM during device + * bootup. To do that the original PCI-E Link Control is stored before + * device bootup is executed and re-programmed later. + */ + u16 link_ctl; }; static inline struct ath10k_pci *ath10k_pci_priv(struct ath10k *ar) |