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| author | Wilken Gottwalt <wilken.gottwalt@posteo.net> | 2021-06-03 11:51:02 +0000 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2021-06-09 11:51:30 -0700 |
| commit | 7656cd2177612aa7c299b083ecff30a4d3e9a587 (patch) | |
| tree | 59f4269a448be3567698a0b7a001023f155f43d5 | |
| parent | faffc5d8576ed827e2e8e4d2a3771dbb52667381 (diff) | |
| download | linux-7656cd2177612aa7c299b083ecff30a4d3e9a587.tar.gz linux-7656cd2177612aa7c299b083ecff30a4d3e9a587.tar.bz2 linux-7656cd2177612aa7c299b083ecff30a4d3e9a587.zip | |
hwmon: (corsair-psu) fix suspend behavior
During standby some PSUs turn off the microcontroller. A re-init is
required during resume or the microcontroller stays unresponsive.
Fixes: d115b51e0e56 ("hwmon: add Corsair PSU HID controller driver")
Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/YLjCJiVtu5zgTabI@monster.powergraphx.local
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| -rw-r--r-- | drivers/hwmon/corsair-psu.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/hwmon/corsair-psu.c b/drivers/hwmon/corsair-psu.c index 02298b86b57b..731d5117f9f1 100644 --- a/drivers/hwmon/corsair-psu.c +++ b/drivers/hwmon/corsair-psu.c @@ -771,6 +771,16 @@ static int corsairpsu_raw_event(struct hid_device *hdev, struct hid_report *repo return 0; } +#ifdef CONFIG_PM +static int corsairpsu_resume(struct hid_device *hdev) +{ + struct corsairpsu_data *priv = hid_get_drvdata(hdev); + + /* some PSUs turn off the microcontroller during standby, so a reinit is required */ + return corsairpsu_init(priv); +} +#endif + static const struct hid_device_id corsairpsu_idtable[] = { { HID_USB_DEVICE(0x1b1c, 0x1c03) }, /* Corsair HX550i */ { HID_USB_DEVICE(0x1b1c, 0x1c04) }, /* Corsair HX650i */ @@ -793,6 +803,10 @@ static struct hid_driver corsairpsu_driver = { .probe = corsairpsu_probe, .remove = corsairpsu_remove, .raw_event = corsairpsu_raw_event, +#ifdef CONFIG_PM + .resume = corsairpsu_resume, + .reset_resume = corsairpsu_resume, +#endif }; module_hid_driver(corsairpsu_driver); |