Hi Kieran,
Thank you for the patch.
On Thu, Mar 10, 2022 at 03:22:26PM +0000, Kieran Bingham wrote:
> From: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
>
> Implement the bridge connector-related .get_edid() operation, and report
> the related bridge capabilities and type.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
> ---
> Changes since v1:
>
> - The connector .get_modes() operation doesn't rely on EDID anymore,
> __ti_sn_bridge_get_edid() and ti_sn_bridge_get_edid() got merged
> together
> - Fix on top of Sam Ravnborg's DRM_BRIDGE_STATE_OPS
>
> Changes since v2: [Kieran]
> - Only support EDID on DRM_MODE_CONNECTOR_DisplayPort modes.
>
> drivers/gpu/drm/bridge/ti-sn65dsi86.c | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> index 93b54fcba8ba..d581c820e5d8 100644
> --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> @@ -1135,10 +1135,24 @@ static void ti_sn_bridge_atomic_post_disable(struct drm_bridge *bridge,
> pm_runtime_put_sync(pdata->dev);
> }
>
> +static struct edid *ti_sn_bridge_get_edid(struct drm_bridge *bridge,
> + struct drm_connector *connector)
> +{
> + struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge);
> + struct edid *edid;
> +
> + pm_runtime_get_sync(pdata->dev);
> + edid = drm_get_edid(connector, &pdata->aux.ddc);
> + pm_runtime_put_autosuspend(pdata->dev);
> +
> + return edid;
> +}
> +
> static const struct drm_bridge_funcs ti_sn_bridge_funcs = {
> .attach = ti_sn_bridge_attach,
> .detach = ti_sn_bridge_detach,
> .mode_valid = ti_sn_bridge_mode_valid,
> + .get_edid = ti_sn_bridge_get_edid,
> .atomic_pre_enable = ti_sn_bridge_atomic_pre_enable,
> .atomic_enable = ti_sn_bridge_atomic_enable,
> .atomic_disable = ti_sn_bridge_atomic_disable,
> @@ -1233,6 +1247,9 @@ static int ti_sn_bridge_probe(struct auxiliary_device *adev,
> pdata->bridge.type = pdata->next_bridge->type == DRM_MODE_CONNECTOR_DisplayPort
> ? DRM_MODE_CONNECTOR_DisplayPort : DRM_MODE_CONNECTOR_eDP;
>
> + if (pdata->bridge.type == DRM_MODE_CONNECTOR_DisplayPort)
> + pdata->bridge.ops = DRM_BRIDGE_OP_EDID;
You could write this as
if (pdata->bridge.type == DRM_MODE_CONNECTOR_DisplayPort)
pdata->bridge.ops |= DRM_BRIDGE_OP_EDID;
to be ready to support other ops, but that doesn't help
DRM_BRIDGE_OP_DETECT in 3/3, and I don't foresee the need for other ops.
In any case,
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> +
> drm_bridge_add(&pdata->bridge);
>
> ret = ti_sn_attach_host(pdata);
--
Regards,
Laurent Pinchart
