diff mbox

[3/3] au0828: don't let the IR polling thread to run at suspend

Message ID 1407494627-1555-3-git-send-email-m.chehab@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mauro Carvalho Chehab Aug. 8, 2014, 10:43 a.m. UTC
Trying to make au0828 to suspend can do very bad things, as
the polling Kthread is not handled. We should disable it
during suspend, only re-enabling it at resume.

Still, analog and digital TV won't work, as we don't reinit
the settings at resume, but at least it won't hang.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/au0828/au0828-core.c | 32 ++++++++++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

Comments

Shuah Khan Aug. 8, 2014, 1:42 p.m. UTC | #1
On Fri, Aug 8, 2014 at 4:43 AM, Mauro Carvalho Chehab
<m.chehab@samsung.com> wrote:
> Trying to make au0828 to suspend can do very bad things, as
> the polling Kthread is not handled. We should disable it
> during suspend, only re-enabling it at resume.
>
> Still, analog and digital TV won't work, as we don't reinit
> the settings at resume, but at least it won't hang.
>
> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
> ---
>  drivers/media/usb/au0828/au0828-core.c | 32 ++++++++++++++++++++++++++++++--
>  1 file changed, 30 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
> index 56025e689442..eb5f2b1b182b 100644
> --- a/drivers/media/usb/au0828/au0828-core.c
> +++ b/drivers/media/usb/au0828/au0828-core.c
> @@ -285,13 +285,41 @@ static int au0828_usb_probe(struct usb_interface *interface,
>         return retval;
>  }
>
> +static int au0828_suspend(struct usb_interface *interface,
> +                               pm_message_t message)
> +{
> +       struct au0828_dev *dev = usb_get_intfdata(interface);
> +
> +       if (!dev)
> +               return 0;
> +
> +       au0828_rc_suspend(dev);
> +
> +       /* FIXME: should suspend also ATV/DTV */
> +
> +       return 0;
> +}
> +
> +static int au0828_resume(struct usb_interface *interface)
> +{
> +       struct au0828_dev *dev = usb_get_intfdata(interface);
> +       if (!dev)
> +               return 0;
> +
> +       au0828_rc_resume(dev);
> +
> +       /* FIXME: should resume also ATV/DTV */
> +
> +       return 0;
> +}
> +
>  static struct usb_driver au0828_usb_driver = {
>         .name           = DRIVER_NAME,
>         .probe          = au0828_usb_probe,
>         .disconnect     = au0828_usb_disconnect,
>         .id_table       = au0828_usb_id_table,
> -
> -       /* FIXME: Add suspend and resume functions */
> +       .suspend        = au0828_suspend,
> +       .resume         = au0828_resume,
>  };

all the extensions will need suspend/resume hooks similar to em28xx
would like me to take a look at that??

-- Shuah
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diff mbox

Patch

diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index 56025e689442..eb5f2b1b182b 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -285,13 +285,41 @@  static int au0828_usb_probe(struct usb_interface *interface,
 	return retval;
 }
 
+static int au0828_suspend(struct usb_interface *interface,
+				pm_message_t message)
+{
+	struct au0828_dev *dev = usb_get_intfdata(interface);
+
+	if (!dev)
+		return 0;
+
+	au0828_rc_suspend(dev);
+
+	/* FIXME: should suspend also ATV/DTV */
+
+	return 0;
+}
+
+static int au0828_resume(struct usb_interface *interface)
+{
+	struct au0828_dev *dev = usb_get_intfdata(interface);
+	if (!dev)
+		return 0;
+
+	au0828_rc_resume(dev);
+
+	/* FIXME: should resume also ATV/DTV */
+
+	return 0;
+}
+
 static struct usb_driver au0828_usb_driver = {
 	.name		= DRIVER_NAME,
 	.probe		= au0828_usb_probe,
 	.disconnect	= au0828_usb_disconnect,
 	.id_table	= au0828_usb_id_table,
-
-	/* FIXME: Add suspend and resume functions */
+	.suspend	= au0828_suspend,
+	.resume		= au0828_resume,
 };
 
 static int __init au0828_init(void)