[1/4] drm: xlnx: zynqmp_dpsub: Make drm bridge discoverable

Message ID 20240112234222.913138-2-anatoliy.klymenko@amd.com
State New
Headers
Series Fixing live video input in ZynqMP DPSUB |

Commit Message

Klymenko, Anatoliy Jan. 12, 2024, 11:42 p.m. UTC
  Assign device of node to bridge prior registering it. This will
make said bridge discoverable by separate crtc driver.

Signed-off-by: Anatoliy Klymenko <anatoliy.klymenko@amd.com>
---
 drivers/gpu/drm/xlnx/zynqmp_dp.c | 1 +
 1 file changed, 1 insertion(+)
  

Comments

Tomi Valkeinen Jan. 17, 2024, 2:06 p.m. UTC | #1
On 13/01/2024 01:42, Anatoliy Klymenko wrote:
> Assign device of node to bridge prior registering it. This will
> make said bridge discoverable by separate crtc driver.

I think a few words on why this is needed (and why it wasn't needed 
before) would be nice.

Other than that:

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> Signed-off-by: Anatoliy Klymenko <anatoliy.klymenko@amd.com>
> ---
>   drivers/gpu/drm/xlnx/zynqmp_dp.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c
> index a0606fab0e22..d60b7431603f 100644
> --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c
> +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c
> @@ -1721,6 +1721,7 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub)
>   	bridge->ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID
>   		    | DRM_BRIDGE_OP_HPD;
>   	bridge->type = DRM_MODE_CONNECTOR_DisplayPort;
> +	bridge->of_node = dp->dev->of_node;
>   	dpsub->bridge = bridge;
>   
>   	/*
  
Laurent Pinchart Jan. 17, 2024, 2:24 p.m. UTC | #2
On Wed, Jan 17, 2024 at 04:06:31PM +0200, Tomi Valkeinen wrote:
> On 13/01/2024 01:42, Anatoliy Klymenko wrote:
> > Assign device of node to bridge prior registering it. This will
> > make said bridge discoverable by separate crtc driver.
> 
> I think a few words on why this is needed (and why it wasn't needed 
> before) would be nice.
> 
> Other than that:
> 
> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

Agreed. With a better commit message,

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> > Signed-off-by: Anatoliy Klymenko <anatoliy.klymenko@amd.com>
> > ---
> >   drivers/gpu/drm/xlnx/zynqmp_dp.c | 1 +
> >   1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c
> > index a0606fab0e22..d60b7431603f 100644
> > --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c
> > +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c
> > @@ -1721,6 +1721,7 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub)
> >   	bridge->ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID
> >   		    | DRM_BRIDGE_OP_HPD;
> >   	bridge->type = DRM_MODE_CONNECTOR_DisplayPort;
> > +	bridge->of_node = dp->dev->of_node;
> >   	dpsub->bridge = bridge;
> >   
> >   	/*
  

Patch

diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c
index a0606fab0e22..d60b7431603f 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_dp.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c
@@ -1721,6 +1721,7 @@  int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub)
 	bridge->ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID
 		    | DRM_BRIDGE_OP_HPD;
 	bridge->type = DRM_MODE_CONNECTOR_DisplayPort;
+	bridge->of_node = dp->dev->of_node;
 	dpsub->bridge = bridge;
 
 	/*