Messages in this thread Patch in this message | | | Date | Wed, 7 Sep 2022 09:34:06 +0200 | Subject | Re: [PATCH v2 11/11] drm/udl: Sync pending URBs at the end of suspend | From | Thomas Zimmermann <> |
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Hi
Am 06.09.22 um 09:39 schrieb Takashi Iwai: > It's better to perform the sync at the very last of the suspend > instead of the pipe-disable function, so that we can catch all pending > URBs (if any). > > While we're at it, drop the error code from udl_sync_pending_urb() > since we basically ignore it; instead, give a clear error message > indicating a problem. > > Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
> --- > drivers/gpu/drm/udl/udl_drv.c | 8 +++++++- > drivers/gpu/drm/udl/udl_drv.h | 2 +- > drivers/gpu/drm/udl/udl_main.c | 6 ++---- > drivers/gpu/drm/udl/udl_modeset.c | 2 -- > 4 files changed, 10 insertions(+), 8 deletions(-) > > diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c > index 0ba88e5472a9..91effdcefb6d 100644 > --- a/drivers/gpu/drm/udl/udl_drv.c > +++ b/drivers/gpu/drm/udl/udl_drv.c > @@ -21,8 +21,14 @@ static int udl_usb_suspend(struct usb_interface *interface, > pm_message_t message) > { > struct drm_device *dev = usb_get_intfdata(interface); > + int ret; > > - return drm_mode_config_helper_suspend(dev); > + ret = drm_mode_config_helper_suspend(dev); > + if (ret) > + return ret; > + > + udl_sync_pending_urbs(dev); > + return 0; > } > > static int udl_usb_resume(struct usb_interface *interface) > diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h > index d943684b5bbb..b4cc7cc568c7 100644 > --- a/drivers/gpu/drm/udl/udl_drv.h > +++ b/drivers/gpu/drm/udl/udl_drv.h > @@ -77,7 +77,7 @@ struct drm_connector *udl_connector_init(struct drm_device *dev); > struct urb *udl_get_urb(struct drm_device *dev); > > int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len); > -int udl_sync_pending_urbs(struct drm_device *dev); > +void udl_sync_pending_urbs(struct drm_device *dev); > void udl_urb_completion(struct urb *urb); > > int udl_init(struct udl_device *udl); > diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c > index 808a5ab5e14e..442080fa1061 100644 > --- a/drivers/gpu/drm/udl/udl_main.c > +++ b/drivers/gpu/drm/udl/udl_main.c > @@ -290,10 +290,9 @@ int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len) > } > > /* wait until all pending URBs have been processed */ > -int udl_sync_pending_urbs(struct drm_device *dev) > +void udl_sync_pending_urbs(struct drm_device *dev) > { > struct udl_device *udl = to_udl(dev); > - int ret = 0; > > spin_lock_irq(&udl->urbs.lock); > /* 2 seconds as a sane timeout */ > @@ -301,9 +300,8 @@ int udl_sync_pending_urbs(struct drm_device *dev) > udl->urbs.available == udl->urbs.count, > udl->urbs.lock, > msecs_to_jiffies(2000))) > - ret = -ETIMEDOUT; > + drm_err(dev, "Timeout for syncing pending URBs\n"); > spin_unlock_irq(&udl->urbs.lock); > - return ret; > } > > int udl_init(struct udl_device *udl) > diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c > index 9896c16c74f5..c506fff8f0c4 100644 > --- a/drivers/gpu/drm/udl/udl_modeset.c > +++ b/drivers/gpu/drm/udl/udl_modeset.c > @@ -383,8 +383,6 @@ udl_simple_display_pipe_disable(struct drm_simple_display_pipe *pipe) > buf = udl_dummy_render(buf); > > udl_submit_urb(dev, urb, buf - (char *)urb->transfer_buffer); > - > - udl_sync_pending_urbs(dev); > } > > static void
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev [unhandled content-type:application/pgp-signature] | |