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Commit 05020d23 authored by Sujith's avatar Sujith Committed by John W. Linville
Browse files

ath9k_hw: add HTC init hardware call for special resets for AR9271 



AR9271 needs a full reset only upon the first reset, add
a call for the driver to enable these special resets. We
can optimize this out later without an export.

Signed-off-by: default avatarSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarVasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: default avatarLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 25e2ab17

drivers/net/wireless/ath/ath9k/hw.c

+12 −0
Original line number Diff line number Diff line
@@ -1951,6 +1951,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, 


	ath9k_hw_mark_phy_inactive(ah);



	/* Only required on the first reset */

	if (AR_SREV_9271(ah) && ah->htc_reset_init) {

		REG_WRITE(ah,

			  AR9271_RESET_POWER_DOWN_CONTROL,
@@ -1963,6 +1964,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, 
		return -EINVAL;

	}



	/* Only required on the first reset */

	if (AR_SREV_9271(ah) && ah->htc_reset_init) {

		ah->htc_reset_init = false;

		REG_WRITE(ah,
@@ -3857,6 +3859,16 @@ void ath_gen_timer_isr(struct ath_hw *ah) 
}

EXPORT_SYMBOL(ath_gen_timer_isr);



/********/

/* HTC  */

/********/



void ath9k_hw_htc_resetinit(struct ath_hw *ah)

{

	ah->htc_reset_init = true;

}

EXPORT_SYMBOL(ath9k_hw_htc_resetinit);



static struct {

	u32 version;

	const char * name;

drivers/net/wireless/ath/ath9k/hw.h

+3 −0
Original line number Diff line number Diff line
@@ -707,6 +707,9 @@ u32 ath9k_hw_gettsf32(struct ath_hw *ah); 


void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len);



/* HTC */

void ath9k_hw_htc_resetinit(struct ath_hw *ah);



#define ATH_PCIE_CAP_LINK_CTRL	0x70

#define ATH_PCIE_CAP_LINK_L0S	1

#define ATH_PCIE_CAP_LINK_L1	2