diff options
| author | Jack Kao <jack.kao@mediatek.com> | 2025-09-01 15:32:00 +0800 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2025-09-15 09:47:39 +0200 |
| commit | d54424fbc53b4d6be00f90a8b529cd368f20d357 (patch) | |
| tree | 412a4d50499ec5873f7af8e7a2b12a62174e953f /drivers | |
| parent | wifi: mt76: mt7996: Check phy before init msta_link in mt7996_mac_sta_add_lin... (diff) | |
| download | linux-d54424fbc53b4d6be00f90a8b529cd368f20d357.tar.gz linux-d54424fbc53b4d6be00f90a8b529cd368f20d357.zip | |
wifi: mt76: mt7925: add pci restore for hibernate
Due to hibernation causing a power off and power on,
this modification adds mt7925_pci_restore callback function for kernel.
When hibernation resumes, it calls mt7925_pci_restore to reset the device,
allowing it to return to the state it was in before the power off.
Signed-off-by: Jack Kao <jack.kao@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Link: https://patch.msgid.link/20250901073200.230033-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7925/pci.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c index 89dc30f7c6b7..8eb1fe1082d1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c @@ -529,7 +529,7 @@ restore_suspend: return err; } -static int mt7925_pci_resume(struct device *device) +static int _mt7925_pci_resume(struct device *device, bool restore) { struct pci_dev *pdev = to_pci_dev(device); struct mt76_dev *mdev = pci_get_drvdata(pdev); @@ -569,6 +569,9 @@ static int mt7925_pci_resume(struct device *device) napi_schedule(&mdev->tx_napi); local_bh_enable(); + if (restore) + goto failed; + mt76_connac_mcu_set_hif_suspend(mdev, false, false); ret = wait_event_timeout(dev->wait, dev->hif_resumed, 3 * HZ); @@ -585,7 +588,7 @@ static int mt7925_pci_resume(struct device *device) failed: pm->suspended = false; - if (err < 0) + if (err < 0 || restore) mt792x_reset(&dev->mt76); return err; @@ -596,7 +599,24 @@ static void mt7925_pci_shutdown(struct pci_dev *pdev) mt7925_pci_remove(pdev); } -static DEFINE_SIMPLE_DEV_PM_OPS(mt7925_pm_ops, mt7925_pci_suspend, mt7925_pci_resume); +static int mt7925_pci_resume(struct device *device) +{ + return _mt7925_pci_resume(device, false); +} + +static int mt7925_pci_restore(struct device *device) +{ + return _mt7925_pci_resume(device, true); +} + +static const struct dev_pm_ops mt7925_pm_ops = { + .suspend = pm_sleep_ptr(mt7925_pci_suspend), + .resume = pm_sleep_ptr(mt7925_pci_resume), + .freeze = pm_sleep_ptr(mt7925_pci_suspend), + .thaw = pm_sleep_ptr(mt7925_pci_resume), + .poweroff = pm_sleep_ptr(mt7925_pci_suspend), + .restore = pm_sleep_ptr(mt7925_pci_restore), +}; static struct pci_driver mt7925_pci_driver = { .name = KBUILD_MODNAME, |