2021-04-15 22:23:03

by Lorenzo Bianconi

[permalink] [raw]
Subject: [PATCH] mt76: mt7921: run mt7921_mcu_fw_log_2_host holding mt76 mutex

Wake the chip before configuring the mcu log level

Fixes: 1d8efc741df8 ("mt76: mt7921: introduce Runtime PM support")
Signed-off-by: Lorenzo Bianconi <[email protected]>
---
drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
index 024524173115..48dc7daf975b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
@@ -9,10 +9,13 @@ mt7921_fw_debug_set(void *data, u64 val)
{
struct mt7921_dev *dev = data;

- dev->fw_debug = (u8)val;
+ mt7921_mutex_acquire(dev);

+ dev->fw_debug = (u8)val;
mt7921_mcu_fw_log_2_host(dev, dev->fw_debug);

+ mt7921_mutex_release(dev);
+
return 0;
}

--
2.30.2