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mt76: mt7921: fix mt7921_wfsys_reset sequence

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WiFi subsytem reset should control MT_WFSYS_SW_RST_B and then poll the
same register until the bit WFSYS_SW_INIT_DONE bit is set.

Fixes: 0c1ce9884607 ("mt76: mt7921: add wifi reset support")
Reviewed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Sean Wang
2021-05-13 10:18:25 +02:00
committed by Felix Fietkau
parent f2d0da8da9
commit d2713a5d9d
1 changed files with 3 additions and 3 deletions
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mt7921/dma.c
+3 -3
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@@ -313,9 +313,9 @@ static int mt7921_dma_reset(struct mt7921_dev *dev, bool force)
int mt7921_wfsys_reset(struct mt7921_dev *dev)
{
mt76_set(dev, 0x70002600, BIT(0));
msleep(200);
mt76_clear(dev, 0x70002600, BIT(0));
mt76_clear(dev, MT_WFSYS_SW_RST_B, WFSYS_SW_RST_B);
msleep(50);
mt76_set(dev, MT_WFSYS_SW_RST_B, WFSYS_SW_RST_B);
if (!__mt76_poll_msec(&dev->mt76, MT_WFSYS_SW_RST_B,
WFSYS_SW_INIT_DONE, WFSYS_SW_INIT_DONE, 500))