From: Santosh Sajjan <ssajjan@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
---
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 07dcf00..4febee7 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)
--
1.7.6
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