On Wed, 11 Dec 2019 00:57:13 +0200
Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> Implement the newly added bridge connector operations, allowing the
> usage of drm_bridge_panel with drm_bridge_connector.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
> ---
> Changes since v2:
>
> - Use the connector type from the panel instead of hardcoding it to DPI
> - Rebased on top top of Sam's panel .get_modes() rework
> ---
> drivers/gpu/drm/bridge/panel.c | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c
> index 25c77cb24f42..cf4be369d75e 100644
> --- a/drivers/gpu/drm/bridge/panel.c
> +++ b/drivers/gpu/drm/bridge/panel.c
> @@ -61,7 +61,7 @@ static int panel_bridge_attach(struct drm_bridge *bridge,
> int ret;
>
> if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)
> - return -EINVAL;
> + return 0;
>
> if (!bridge->encoder) {
> DRM_ERROR("Missing encoder\n");
> @@ -124,6 +124,14 @@ static void panel_bridge_post_disable(struct drm_bridge *bridge)
> drm_panel_unprepare(panel_bridge->panel);
> }
>
> +static int panel_bridge_get_modes(struct drm_bridge *bridge,
> + struct drm_connector *connector)
> +{
> + struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
> +
> + return drm_panel_get_modes(panel_bridge->panel, connector);
> +}
> +
> static const struct drm_bridge_funcs panel_bridge_bridge_funcs = {
> .attach = panel_bridge_attach,
> .detach = panel_bridge_detach,
> @@ -131,6 +139,7 @@ static const struct drm_bridge_funcs panel_bridge_bridge_funcs = {
> .enable = panel_bridge_enable,
> .disable = panel_bridge_disable,
> .post_disable = panel_bridge_post_disable,
> + .get_modes = panel_bridge_get_modes,
> };
>
> /**
> @@ -200,6 +209,8 @@ struct drm_bridge *drm_panel_bridge_add_typed(struct drm_panel *panel,
> #ifdef CONFIG_OF
> panel_bridge->bridge.of_node = panel->dev->of_node;
> #endif
> + panel_bridge->bridge.ops = DRM_BRIDGE_OP_MODES;
> + panel_bridge->bridge.type = connector_type;
>
> drm_bridge_add(&panel_bridge->bridge);
>
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