This helps to make STA airtime counters more accurate.
Signed-off-by: Chad Monroe <chad@xxxxxxxxx>
Suggested-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt7996/init.c | 4 ++++
drivers/net/wireless/mediatek/mt76/mt7996/regs.h | 3 +++
2 files changed, 7 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
index f6a010b61a8a..afc4884f7ba2 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
@@ -460,6 +460,10 @@ mt7996_mac_init_band(struct mt7996_dev *dev, u8 band)
mt76_clear(dev, MT_WF_RMAC_MIB_AIRTIME4(band),
MT_WF_RMAC_MIB_QOS23_BACKOFF);
+ /* clear backoff time for Tx duration */
+ mt76_clear(dev, MT_WTBLOFF_ACR(band),
+ MT_WTBLOFF_ADM_BACKOFFTIME);
+
/* clear backoff time and set software compensation for OBSS time */
mask = MT_WF_RMAC_MIB_OBSS_BACKOFF | MT_WF_RMAC_MIB_ED_OFFSET;
set = FIELD_PREP(MT_WF_RMAC_MIB_OBSS_BACKOFF, 0) |
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
index 06e307b5b02e..1876a968c92d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
@@ -175,6 +175,9 @@ enum offs_rev {
#define MT_WTBLOFF_RSCR_RCPI_MODE GENMASK(31, 30)
#define MT_WTBLOFF_RSCR_RCPI_PARAM GENMASK(25, 24)
+#define MT_WTBLOFF_ACR(_band) MT_WTBLOFF(_band, 0x010)
+#define MT_WTBLOFF_ADM_BACKOFFTIME BIT(29)
+
/* ETBF: band 0(0x820ea000), band 1(0x820fa000), band 2(0x830ea000) */
#define MT_WF_ETBF_BASE(_band) __BASE(WF_ETBF_BASE, (_band))
#define MT_WF_ETBF(_band, ofs) (MT_WF_ETBF_BASE(_band) + (ofs))
--
2.39.5
