diff options
| author | Santosh Sajjan <ssajjan@codeaurora.org> | 2012-01-31 00:02:26 +0400 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2012-01-31 23:06:46 +0400 |
| commit | cca4d5adcff515b4bf5402dc23792f5123872906 (patch) | |
| tree | 7cae1462024a9614ff8d34cc6ced783cde3228b4 /drivers/net/wireless/ath/ath6kl/sdio.c | |
| parent | 3c411a434414f4320ce926bee3733e34ba0ea407 (diff) | |
| download | linux-cca4d5adcff515b4bf5402dc23792f5123872906.tar.xz | |
ath6kl: Workaround to support Deep Sleep with MSM.
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>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/sdio.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/sdio.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c index 07dcf00ca1a7..4febee723495 100644 --- a/drivers/net/wireless/ath/ath6kl/sdio.c +++ b/drivers/net/wireless/ath/ath6kl/sdio.c @@ -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) |