On Sat, Jun 30, 2012 at 11:38:48AM +0530, Rajkumar Manoharan wrote:
> The chip is waken up for every 45ms in btcoex timer cycle to
> for sharing the radio between BT and WLAN. Whenever the wlan
> interface is in network sleep mode, do not schedule hw timers.
> This could reduce power consumption on idle associated state.
>
> Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>
> ---
> drivers/net/wireless/ath/ath9k/gpio.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
> index 9ae6a4d..c17168e 100644
> --- a/drivers/net/wireless/ath/ath9k/gpio.c
> +++ b/drivers/net/wireless/ath/ath9k/gpio.c
> @@ -194,6 +194,16 @@ static void ath_btcoex_period_timer(unsigned long data)
> struct ath_mci_profile *mci = &btcoex->mci;
> u32 timer_period;
> bool is_btscan;
> + unsigned long flags;
> +
> + spin_lock_irqsave(&sc->sc_pm_lock, flags);
> + if (sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP) {
> + spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
> + if (btcoex->hw_timer_enabled)
> + ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer);
Register access on sleep state should be avoided. Please drop this patchset.
Will send v3 series.
-Rajkumar
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