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SubjectRe: [PATCH 02/60] drm/arm/hdlcd: Add support for the nomodeset kernel parameter
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Seems fine.

Reviewed-by: Carsten Haitzler <carsten.haitzler@arm.com>

On 12/15/21 00:59, 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 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/arm/hdlcd_drv.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
> index 479c2422a2e0..0939a64a9bd2 100644
> --- a/drivers/gpu/drm/arm/hdlcd_drv.c
> +++ b/drivers/gpu/drm/arm/hdlcd_drv.c
> @@ -382,6 +382,9 @@ static int hdlcd_probe(struct platform_device *pdev)
> struct device_node *port;
> struct component_match *match = NULL;
>
> + if (drm_firmware_drivers_only())
> + return -ENODEV;
> +
> /* there is only one output port inside each device, find it */
> port = of_graph_get_remote_node(pdev->dev.of_node, 0, 0);
> if (!port)

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