diff options
| author | Sean Wang <sean.wang@mediatek.com> | 2020-05-01 12:36:14 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-05-12 19:52:34 +0200 |
| commit | d0846f0867f3361c551e2f431f94f64c58646d56 (patch) | |
| tree | ab1dabe3f3fb3b3151a5ec0d646b2013b5cdd9af /drivers/net/wireless/mediatek/mt76/mt7615/usb.c | |
| parent | c6bf20109a3fae92402cb76ad709ec5256bcd169 (diff) | |
mt76: mt7663u: introduce suspend/resume to mt7663u
Tested on Chromebok by "echo mem to /sys/power/state" to suspend and
then waked up by keyboard keystrokes to resume system.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7615/usb.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/usb.c | 44 |
1 files changed, 38 insertions, 6 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c index 9353175b139b..f2825b8f4539 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c @@ -372,18 +372,50 @@ static void mt7663u_disconnect(struct usb_interface *usb_intf) ieee80211_free_hw(dev->mt76.hw); } -static int __maybe_unused -mt7663u_suspend(struct usb_interface *intf, - pm_message_t state) +#ifdef CONFIG_PM +static int mt7663u_suspend(struct usb_interface *intf, pm_message_t state) { + struct mt7615_dev *dev = usb_get_intfdata(intf); + + if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) && + mt7615_firmware_offload(dev)) { + int err; + + err = mt7615_mcu_set_hif_suspend(dev, true); + if (err < 0) + return err; + } + + mt76u_stop_rx(&dev->mt76); + + mt76u_stop_tx(&dev->mt76); + tasklet_kill(&dev->mt76.tx_tasklet); + return 0; } -static int __maybe_unused -mt7663u_resume(struct usb_interface *intf) +static int mt7663u_resume(struct usb_interface *intf) { - return 0; + struct mt7615_dev *dev = usb_get_intfdata(intf); + int err; + + err = mt76u_vendor_request(&dev->mt76, MT_VEND_FEATURE_SET, + USB_DIR_OUT | USB_TYPE_VENDOR, + 0x5, 0x0, NULL, 0); + if (err) + return err; + + err = mt76u_resume_rx(&dev->mt76); + if (err < 0) + return err; + + if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) && + mt7615_firmware_offload(dev)) + err = mt7615_mcu_set_hif_suspend(dev, false); + + return err; } +#endif /* CONFIG_PM */ MODULE_DEVICE_TABLE(usb, mt7615_device_table); MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9); |