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SubjectRe: [PATCH v2 36/37] drm/tilcdc: Add support for the nomodeset kernel parameter
On 2021-12-17 2:37, Javier Martinez Canillas wrote:
> 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 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>

Acked-by: Jyri Sarha <jyri.sarha@iki.fi>

> ---
>
> (no changes since v1)
>
> drivers/gpu/drm/tilcdc/tilcdc_drv.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> index cc567c87057d..eee3c447fbac 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> @@ -604,6 +604,9 @@ static struct platform_driver
> tilcdc_platform_driver = {
>
> static int __init tilcdc_drm_init(void)
> {
> + if (drm_firmware_drivers_only())
> + return -ENODEV;
> +
> DBG("init");
> tilcdc_panel_init();
> return platform_driver_register(&tilcdc_platform_driver);

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