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[PATCH 1/2] mt76: mt7921: add debugfs knob for performing wifi reset

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From: Sean Wang <sean.wang@xxxxxxxxxxxx>

Introduce chip_reset knob in mt7921 debugfs to export a way to users
able to trigger wifi reset.

Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
---
 drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
index 024524173115..1342a0b645e3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
@@ -302,6 +302,16 @@ static int mt7921_config(void *data, u64 val)
 
 DEFINE_DEBUGFS_ATTRIBUTE(fops_config, NULL, mt7921_config, "%lld\n");
 
+static int mt7921_chip_reset(void *data, u64 val)
+{
+	struct mt7921_dev *dev = data;
+
+	mt7921_reset(&dev->mt76);
+
+	return 0;
+}
+DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7921_chip_reset, "%lld\n");
+
 int mt7921_init_debugfs(struct mt7921_dev *dev)
 {
 	struct dentry *dir;
@@ -322,6 +332,7 @@ int mt7921_init_debugfs(struct mt7921_dev *dev)
 	debugfs_create_file("idle-timeout", 0600, dir, dev,
 			    &fops_pm_idle_timeout);
 	debugfs_create_file("chip_config", 0600, dir, dev, &fops_config);
+	debugfs_create_file("chip_reset", 0600, dir, dev, &fops_reset);
 
 	return 0;
 }
-- 
2.25.1




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