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ath6kl: Workaround to support Deep Sleep with MSM.

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Set the host pm flag MMC_PM_WAKE_SDIO_IRQ to allow host
to disable the sdc2_clk and sdc2_h_clk,so that the MSM device
enter into TCXO shutdown.

Signed-off-by: Santosh Sajjan <ssajjan@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Santosh Sajjan 2012-01-30 22:02:26 +02:00 committed by Kalle Valo
parent 3c411a4344
commit cca4d5adcf
1 changed files with 13 additions and 0 deletions
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13
drivers/net/wireless/ath/ath6kl/sdio.c
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@ -856,6 +856,19 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
if (ret)
goto cut_pwr;
/*
* Workaround to support Deep Sleep with MSM, set the host pm
* flag as MMC_PM_WAKE_SDIO_IRQ to allow SDCC deiver to disable
* the sdc2_clock and internally allows MSM to enter
* TCXO shutdown properly.
*/
if ((flags & MMC_PM_WAKE_SDIO_IRQ)) {
ret = sdio_set_host_pm_flags(func,
MMC_PM_WAKE_SDIO_IRQ);
if (ret)
goto cut_pwr;
}
ret = ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_DEEPSLEEP,
NULL);
if (ret)