From: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
The power save state of MCI has to be disabled
when enabling WoW sleep, check this properly.
ar9003_mci_state() doesn't handle MCI_STATE_GET_WLAN_PS_STATE
right now, but this will be done later when proper
support for MCI/PS is added.
Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_mci.h | 7 +++++++
drivers/net/wireless/ath/ath9k/ar9003_wow.c | 16 +++++++++++++++-
2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.h b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
index 19800af..cef2010 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
@@ -188,6 +188,13 @@ enum mci_bt_state {
MCI_BT_CAL
};
+enum mci_ps_state {
+ MCI_PS_DISABLE,
+ MCI_PS_ENABLE,
+ MCI_PS_ENABLE_OFF,
+ MCI_PS_ENABLE_ON
+};
+
/* Type of state query */
enum mci_state_type {
MCI_STATE_ENABLE,
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_wow.c b/drivers/net/wireless/ath/ath9k/ar9003_wow.c
index 721caf3..bf3378f0 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_wow.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_wow.c
@@ -20,11 +20,25 @@
#include "reg_wow.h"
#include "hw-ops.h"
+static void ath9k_hw_set_sta_powersave(struct ath_hw *ah)
+{
+ if (!ath9k_hw_mci_is_enabled(ah))
+ goto set;
+ /*
+ * If MCI is being used, set PWR_SAV only when MCI's
+ * PS state is disabled.
+ */
+ if (ar9003_mci_state(ah, MCI_STATE_GET_WLAN_PS_STATE) != MCI_PS_DISABLE)
+ return;
+set:
+ REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
+}
+
static void ath9k_hw_set_powermode_wow_sleep(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
- REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
+ ath9k_hw_set_sta_powersave(ah);
/* set rx disable bit */
REG_WRITE(ah, AR_CR, AR_CR_RXD);
--
2.2.2
--
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