From: Deren Wu <deren.wu@xxxxxxxxxxxx>
Accroding to chip hw flow, mt7921s need to re-acquire privilege
again before normal running. Otherwise, the bus may be stuck in
an abnormal status.
Tested-by: Leon Yen <Leon.Yen@xxxxxxxxxxxx>
Co-developed-by: Eric-SY Chang <Eric-SY.Chang@xxxxxxxxxxxx>
Signed-off-by: Eric-SY Chang <Eric-SY.Chang@xxxxxxxxxxxx>
Co-developed-by: YN Chen <YN.Chen@xxxxxxxxxxxx>
Signed-off-by: YN Chen <YN.Chen@xxxxxxxxxxxx>
Signed-off-by: Deren Wu <deren.wu@xxxxxxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 6ada1ebe7d68..1227d626e9d3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -720,6 +720,17 @@ static int mt7921_load_patch(struct mt7921_dev *dev)
if (ret)
dev_err(dev->mt76.dev, "Failed to start patch\n");
+ if (mt76_is_sdio(&dev->mt76)) {
+ /* activate again */
+ ret = __mt7921_mcu_fw_pmctrl(dev);
+ if (ret)
+ return ret;
+
+ ret = __mt7921_mcu_drv_pmctrl(dev);
+ if (ret)
+ return ret;
+ }
+
out:
sem = mt76_connac_mcu_patch_sem_ctrl(&dev->mt76, false);
switch (sem) {
--
2.18.0
