| Message ID | 20230124134010.30263-2-tzimmermann@suse.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/fb-helper: Various cleanups | expand |
Hello Thomas, On 1/24/23 14:40, Thomas Zimmermann wrote: > Test for connectors in the client code and remove a similar test > from the generic fbdev emulation. Do nothing if the test fails. > Not having connectors indicates a driver bug. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > --- Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> but I've a question below. > drivers/gpu/drm/drm_client.c | 5 +++++ > drivers/gpu/drm/drm_fbdev_generic.c | 5 ----- > 2 files changed, 5 insertions(+), 5 deletions(-) [...] > --- a/drivers/gpu/drm/drm_fbdev_generic.c > +++ b/drivers/gpu/drm/drm_fbdev_generic.c > @@ -389,11 +389,6 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) > if (dev->fb_helper) > return drm_fb_helper_hotplug_event(dev->fb_helper); > > - if (!dev->mode_config.num_connector) { > - drm_dbg_kms(dev, "No connectors found, will not create framebuffer!\n"); > - return 0; > - } > - What about the following code snippet: if (!drm_drv_uses_atomic_modeset(dev)) drm_helper_disable_unused_functions(dev); that seems to be something that should be in the core client dev hotplug as well, since it isn't specific to the fbdev emulation client ?
Hi Am 25.01.23 um 09:30 schrieb Javier Martinez Canillas: > Hello Thomas, > > On 1/24/23 14:40, Thomas Zimmermann wrote: >> Test for connectors in the client code and remove a similar test >> from the generic fbdev emulation. Do nothing if the test fails. >> Not having connectors indicates a driver bug. >> >> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> >> --- > > Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> > > but I've a question below. > >> drivers/gpu/drm/drm_client.c | 5 +++++ >> drivers/gpu/drm/drm_fbdev_generic.c | 5 ----- >> 2 files changed, 5 insertions(+), 5 deletions(-) > > [...] > >> --- a/drivers/gpu/drm/drm_fbdev_generic.c >> +++ b/drivers/gpu/drm/drm_fbdev_generic.c >> @@ -389,11 +389,6 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) >> if (dev->fb_helper) >> return drm_fb_helper_hotplug_event(dev->fb_helper); >> >> - if (!dev->mode_config.num_connector) { >> - drm_dbg_kms(dev, "No connectors found, will not create framebuffer!\n"); >> - return 0; >> - } >> - > > What about the following code snippet: > > if (!drm_drv_uses_atomic_modeset(dev)) > drm_helper_disable_unused_functions(dev); > > that seems to be something that should be in the core client dev hotplug > as well, since it isn't specific to the fbdev emulation client ? That's in the middle of the initial probing code and disables pipeline elements in non-atomic modesetting. TBH I don't dare to move it around. If we ever have other clients, we can attempt the put it into the client. Best regards Thomas >
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index 262ec64d4397..09ac191c202d 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -198,6 +198,11 @@ void drm_client_dev_hotplug(struct drm_device *dev) if (!drm_core_check_feature(dev, DRIVER_MODESET)) return; + if (!dev->mode_config.num_connector) { + drm_dbg_kms(dev, "No connectors found, will not send hotplug events!\n"); + return; + } + mutex_lock(&dev->clientlist_mutex); list_for_each_entry(client, &dev->clientlist, list) { if (!client->funcs || !client->funcs->hotplug) diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 0a4c160e0e58..3d455a2e3fb5 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -389,11 +389,6 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) if (dev->fb_helper) return drm_fb_helper_hotplug_event(dev->fb_helper); - if (!dev->mode_config.num_connector) { - drm_dbg_kms(dev, "No connectors found, will not create framebuffer!\n"); - return 0; - } - drm_fb_helper_prepare(dev, fb_helper, &drm_fb_helper_generic_funcs); ret = drm_fb_helper_init(dev, fb_helper);
Test for connectors in the client code and remove a similar test from the generic fbdev emulation. Do nothing if the test fails. Not having connectors indicates a driver bug. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/gpu/drm/drm_client.c | 5 +++++ drivers/gpu/drm/drm_fbdev_generic.c | 5 ----- 2 files changed, 5 insertions(+), 5 deletions(-)