| Message ID | 20211215010008.2545520-17-javierm@redhat.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | drm: Make all drivers to honour the nomodeset parameter | expand |
Am Mittwoch, dem 15.12.2021 um 01:59 +0100 schrieb Javier Martinez Canillas: > According to disable Documentation/admin-guide/kernel-parameters.txt, this > parameter can be used to disable kernel modesetting. > > DRM drivers will not perform display-mode changes or accelerated rendering > and only the systewm system framebuffer will be available if it was set-up. ^ typo in all the patches. > > But only a few DRM drivers currently check for nomodeset, make this driver > to also support the command line parameter. > > Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> > --- > > drivers/gpu/drm/imx/dcss/dcss-drv.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/imx/dcss/dcss-drv.c b/drivers/gpu/drm/imx/dcss/dcss-drv.c > index 8dc2f85c514b..5be591da7389 100644 > --- a/drivers/gpu/drm/imx/dcss/dcss-drv.c > +++ b/drivers/gpu/drm/imx/dcss/dcss-drv.c > @@ -38,6 +38,9 @@ static int dcss_drv_platform_probe(struct platform_device *pdev) > int err = 0; > bool hdmi_output = true; > > + if (drm_firmware_drivers_only()) > + return -ENODEV; > + > if (!dev->of_node) > return -ENODEV; >
diff --git a/drivers/gpu/drm/imx/dcss/dcss-drv.c b/drivers/gpu/drm/imx/dcss/dcss-drv.c index 8dc2f85c514b..5be591da7389 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-drv.c +++ b/drivers/gpu/drm/imx/dcss/dcss-drv.c @@ -38,6 +38,9 @@ static int dcss_drv_platform_probe(struct platform_device *pdev) int err = 0; bool hdmi_output = true; + if (drm_firmware_drivers_only()) + return -ENODEV; + if (!dev->of_node) return -ENODEV;
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the systewm system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> --- drivers/gpu/drm/imx/dcss/dcss-drv.c | 3 +++ 1 file changed, 3 insertions(+)