2021-06-03 11:54:03

by Wilken Gottwalt

[permalink] [raw]
Subject: [PATCH v2] 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 <[email protected]>
---
Changes in v2:
- corrected fixes commit
---
drivers/hwmon/corsair-psu.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

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);

--
2.31.1


2021-06-03 16:08:48

by Guenter Roeck

[permalink] [raw]
Subject: Re: [PATCH v2] hwmon: corsair-psu: fix suspend behavior

On Thu, Jun 03, 2021 at 11:51:02AM +0000, Wilken Gottwalt wrote:
> 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 <[email protected]>

Applied.

Thanks,
Guenter

> ---
> Changes in v2:
> - corrected fixes commit
> ---
> drivers/hwmon/corsair-psu.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> 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);
>

2021-06-04 05:20:11

by Wilken Gottwalt

[permalink] [raw]
Subject: Re: [PATCH v2] hwmon: corsair-psu: fix suspend behavior

On Thu, 3 Jun 2021 09:05:33 -0700
Guenter Roeck <[email protected]> wrote:

> On Thu, Jun 03, 2021 at 11:51:02AM +0000, Wilken Gottwalt wrote:
> > 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 <[email protected]>
>
> Applied.

Thank you. Though I have an odd question. I would like to change the licensing to
a dual license (GPL/MPL) to support the LibreHardwareMonitor project. They want
to use my code but use a MPL license. What would be the best way to do this?

greetings,
Will

> Thanks,
> Guenter
>
> > ---
> > Changes in v2:
> > - corrected fixes commit
> > ---
> > drivers/hwmon/corsair-psu.c | 14 ++++++++++++++
> > 1 file changed, 14 insertions(+)
> >
> > 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);
> >

2021-06-04 11:09:46

by Guenter Roeck

[permalink] [raw]
Subject: Re: [PATCH v2] hwmon: corsair-psu: fix suspend behavior

On Fri, Jun 04, 2021 at 05:17:11AM +0000, Wilken Gottwalt wrote:
> On Thu, 3 Jun 2021 09:05:33 -0700
> Guenter Roeck <[email protected]> wrote:
>
> > On Thu, Jun 03, 2021 at 11:51:02AM +0000, Wilken Gottwalt wrote:
> > > 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 <[email protected]>
> >
> > Applied.
>
> Thank you. Though I have an odd question. I would like to change the licensing to
> a dual license (GPL/MPL) to support the LibreHardwareMonitor project. They want
> to use my code but use a MPL license. What would be the best way to do this?

Submit a patch which would need an Acked-by: from everyone who contributed
to the driver. As far as I can see, that would be Wan Jiabing
<[email protected]>, Jack Doan <[email protected]>, and Colin Ian King
<[email protected]>. I would suggest to ask them first if the license
change is ok with them.

Guenter

>
> greetings,
> Will
>
> > Thanks,
> > Guenter
> >
> > > ---
> > > Changes in v2:
> > > - corrected fixes commit
> > > ---
> > > drivers/hwmon/corsair-psu.c | 14 ++++++++++++++
> > > 1 file changed, 14 insertions(+)
> > >
> > > 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);
> > >
>

2021-06-13 14:07:54

by Wilken Gottwalt

[permalink] [raw]
Subject: Re: [PATCH v2] hwmon: corsair-psu: fix suspend behavior

On Fri, 4 Jun 2021 04:05:14 -0700
Guenter Roeck <[email protected]> wrote:

> On Fri, Jun 04, 2021 at 05:17:11AM +0000, Wilken Gottwalt wrote:
> > On Thu, 3 Jun 2021 09:05:33 -0700
> > Guenter Roeck <[email protected]> wrote:
> >
> > > On Thu, Jun 03, 2021 at 11:51:02AM +0000, Wilken Gottwalt wrote:
> > > > 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 <[email protected]>
> > >
> > > Applied.
> >
> > Thank you. Though I have an odd question. I would like to change the licensing to
> > a dual license (GPL/MPL) to support the LibreHardwareMonitor project. They want
> > to use my code but use a MPL license. What would be the best way to do this?
>
> Submit a patch which would need an Acked-by: from everyone who contributed
> to the driver. As far as I can see, that would be Wan Jiabing
> <[email protected]>, Jack Doan <[email protected]>, and Colin Ian King
> <[email protected]>. I would suggest to ask them first if the license
> change is ok with them.

I got the okay from Jack who had the idea for the precision patch. But the other
two, who did the semicolon and long cast patches do not reply. So what now?

> Guenter
>
> >
> > greetings,
> > Will
> >
> > > Thanks,
> > > Guenter
> > >
> > > > ---
> > > > Changes in v2:
> > > > - corrected fixes commit
> > > > ---
> > > > drivers/hwmon/corsair-psu.c | 14 ++++++++++++++
> > > > 1 file changed, 14 insertions(+)
> > > >
> > > > 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);
> > > >
> >

2021-06-13 17:46:52

by Guenter Roeck

[permalink] [raw]
Subject: Re: [PATCH v2] hwmon: corsair-psu: fix suspend behavior

On Sun, Jun 13, 2021 at 02:06:34PM +0000, Wilken Gottwalt wrote:
> On Fri, 4 Jun 2021 04:05:14 -0700
> Guenter Roeck <[email protected]> wrote:
>
> > On Fri, Jun 04, 2021 at 05:17:11AM +0000, Wilken Gottwalt wrote:
> > > On Thu, 3 Jun 2021 09:05:33 -0700
> > > Guenter Roeck <[email protected]> wrote:
> > >
> > > > On Thu, Jun 03, 2021 at 11:51:02AM +0000, Wilken Gottwalt wrote:
> > > > > 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 <[email protected]>
> > > >
> > > > Applied.
> > >
> > > Thank you. Though I have an odd question. I would like to change the licensing to
> > > a dual license (GPL/MPL) to support the LibreHardwareMonitor project. They want
> > > to use my code but use a MPL license. What would be the best way to do this?
> >
> > Submit a patch which would need an Acked-by: from everyone who contributed
> > to the driver. As far as I can see, that would be Wan Jiabing
> > <[email protected]>, Jack Doan <[email protected]>, and Colin Ian King
> > <[email protected]>. I would suggest to ask them first if the license
> > change is ok with them.
>
> I got the okay from Jack who had the idea for the precision patch. But the other
> two, who did the semicolon and long cast patches do not reply. So what now?
>

I see two options:
- Publish your original code (not including the semicolon and long cast
patches) as an out-of-tree driver at github or some other open source
repository site, with whatever license you want, and ask
LibreHardwareMonitor pull it from there.
- Submit the driver yourself into LibreHardwareMonitor, again not
including the problematic changes, with whatever license you want.

Disclaimer: I am not an attorney, and this is not legal advice.

Guenter