[PATCH] drm: xlnx: zynqmp_dpsub: fix hotplug detection

[Tomi Valkeinen]

On 21/10/2024 16:41, Steffen Dirkwinkel wrote:
> From: Steffen Dirkwinkel <s.dirkwinkel at beckhoff.com>
> 
> drm_kms_helper_poll_init needs to be called after zynqmp_dpsub_kms_init.
> zynqmp_dpsub_kms_init creates the connector and without it we don't
> enable hotplug detection.
> 
> Signed-off-by: Steffen Dirkwinkel <s.dirkwinkel at beckhoff.com>
> ---
>   drivers/gpu/drm/xlnx/zynqmp_kms.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/xlnx/zynqmp_kms.c b/drivers/gpu/drm/xlnx/zynqmp_kms.c
> index bd1368df7870..311397cee5ca 100644
> --- a/drivers/gpu/drm/xlnx/zynqmp_kms.c
> +++ b/drivers/gpu/drm/xlnx/zynqmp_kms.c
> @@ -509,12 +509,12 @@ int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub)
>   	if (ret)
>   		return ret;
>   
> -	drm_kms_helper_poll_init(drm);
> -
>   	ret = zynqmp_dpsub_kms_init(dpsub);
>   	if (ret < 0)
>   		goto err_poll_fini;
>   
> +	drm_kms_helper_poll_init(drm);
> +
>   	/* Reset all components and register the DRM device. */
>   	drm_mode_config_reset(drm);
>   

Thanks, this indeed fixes the HPD issue.

But shouldn't this have a Fixes tag, and cc stable?

  Tomi