[PATCH RFC v2 21/24] drm/bridge: ti-sn65dsi86: implement .get_next_bridge

[Luca Ceresoli]

Add get_next_callback func to expose the next bridge.

Signed-off-by: Luca Ceresoli <luca.ceresoli at bootlin.com>
---
 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 369c13183232..7196097f68aa 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -768,6 +768,13 @@ static int ti_sn_attach_host(struct auxiliary_device *adev, struct ti_sn65dsi86
 	return devm_mipi_dsi_attach(&adev->dev, dsi);
 }
 
+static struct drm_bridge *sn65dsi86_get_next_bridge(struct drm_bridge *bridge)
+{
+	struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge);
+
+	return pdata->next_bridge ?: ERR_PTR(-ENODEV);
+}
+
 static int ti_sn_bridge_attach(struct drm_bridge *bridge,
 			       struct drm_encoder *encoder,
 			       enum drm_bridge_attach_flags flags)
@@ -1358,6 +1365,7 @@ static void ti_sn_bridge_hpd_disable(struct drm_bridge *bridge)
 }
 
 static const struct drm_bridge_funcs ti_sn_bridge_funcs = {
+	.get_next_bridge = sn65dsi86_get_next_bridge,
 	.attach = ti_sn_bridge_attach,
 	.detach = ti_sn_bridge_detach,
 	.mode_valid = ti_sn_bridge_mode_valid,
@@ -1496,8 +1504,9 @@ 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;
 
+	pdata->bridge.ops = DRM_BRIDGE_OP_GET_NEXT_BRIDGE;
 	if (pdata->bridge.type == DRM_MODE_CONNECTOR_DisplayPort) {
-		pdata->bridge.ops = DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_DETECT;
+		pdata->bridge.ops |= DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_DETECT;
 		if (client->irq)
 			pdata->bridge.ops |= DRM_BRIDGE_OP_HPD;
 		/*

-- 
2.55.0