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mt76: mt7921: add wifisys reset support in debugfs

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Introduce chip_reset knob in mt7921 debugfs to export a way to users
able to trigger wifi reset, and group the similar operations
previously defined in chip_config in the same knob.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Sean Wang 2021-04-16 23:30:35 +08:00 committed by Felix Fietkau
parent 987c8fb4de
commit f1ae92bbc4
1 changed files with 16 additions and 7 deletions
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23
drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
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@ -279,19 +279,28 @@ mt7921_pm_idle_timeout_get(void *data, u64 *val)
DEFINE_DEBUGFS_ATTRIBUTE(fops_pm_idle_timeout, mt7921_pm_idle_timeout_get, DEFINE_DEBUGFS_ATTRIBUTE(fops_pm_idle_timeout, mt7921_pm_idle_timeout_get,
mt7921_pm_idle_timeout_set, "%lld\n"); mt7921_pm_idle_timeout_set, "%lld\n");
static int mt7921_config(void *data, u64 val) static int mt7921_chip_reset(void *data, u64 val)
{ {
struct mt7921_dev *dev = data; struct mt7921_dev *dev = data;
int ret; int ret = 0;
mt7921_mutex_acquire(dev); switch (val) {
ret = mt76_connac_mcu_chip_config(&dev->mt76); case 1:
mt7921_mutex_release(dev); /* Reset wifisys directly. */
mt7921_reset(&dev->mt76);
break;
default:
/* Collect the core dump before reset wifisys. */
mt7921_mutex_acquire(dev);
ret = mt76_connac_mcu_chip_config(&dev->mt76);
mt7921_mutex_release(dev);
break;
}
return ret; return ret;
} }
DEFINE_DEBUGFS_ATTRIBUTE(fops_config, NULL, mt7921_config, "%lld\n"); DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7921_chip_reset, "%lld\n");
int mt7921_init_debugfs(struct mt7921_dev *dev) int mt7921_init_debugfs(struct mt7921_dev *dev)
{ {
@ -312,7 +321,7 @@ int mt7921_init_debugfs(struct mt7921_dev *dev)
debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm); debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm);
debugfs_create_file("idle-timeout", 0600, dir, dev, debugfs_create_file("idle-timeout", 0600, dir, dev,
&fops_pm_idle_timeout); &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; return 0;
} }