[RFC PATCH 08/11] drm/bridge: ti-sn65dsi86: Implement bridge connector operations

[Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>]

Implement the bridge connector-related .get_edid() operation, and report
the related bridge capabilities and type. The .get_edid() operation is
implemented with the same backend as the EDID retrieval from the
connector .get_modes() operation.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 30 ++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index dc300fab4319..6f6e075544e8 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -261,6 +261,18 @@ static void ti_sn_debugfs_remove(struct ti_sn_bridge *pdata)
 	pdata->debugfs = NULL;
 }
 
+static struct edid *__ti_sn_bridge_get_edid(struct ti_sn_bridge *pdata,
+					    struct drm_connector *connector)
+{
+	struct edid *edid;
+
+	pm_runtime_get_sync(pdata->dev);
+	edid = drm_get_edid(connector, &pdata->aux.ddc);
+	pm_runtime_put(pdata->dev);
+
+	return edid;
+}
+
 /* -----------------------------------------------------------------------------
  * DRM Connector Operations
  */
@@ -277,11 +289,8 @@ static int ti_sn_bridge_connector_get_modes(struct drm_connector *connector)
 	struct edid *edid = pdata->edid;
 	int num, ret;
 
-	if (!edid) {
-		pm_runtime_get_sync(pdata->dev);
-		edid = pdata->edid = drm_get_edid(connector, &pdata->aux.ddc);
-		pm_runtime_put(pdata->dev);
-	}
+	if (!edid)
+		edid = pdata->edid = __ti_sn_bridge_get_edid(pdata, connector);
 
 	if (edid && drm_edid_is_valid(edid)) {
 		ret = drm_connector_update_edid_property(connector, edid);
@@ -871,12 +880,21 @@ static void ti_sn_bridge_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_sn_bridge *pdata = bridge_to_ti_sn_bridge(bridge);
+
+	return __ti_sn_bridge_get_edid(pdata, connector);
+}
+
 static const struct drm_bridge_funcs ti_sn_bridge_funcs = {
 	.attach = ti_sn_bridge_attach,
 	.pre_enable = ti_sn_bridge_pre_enable,
 	.enable = ti_sn_bridge_enable,
 	.disable = ti_sn_bridge_disable,
 	.post_disable = ti_sn_bridge_post_disable,
+	.get_edid = ti_sn_bridge_get_edid,
 };
 
 /* -----------------------------------------------------------------------------
@@ -1335,6 +1353,8 @@ static int ti_sn_bridge_probe(struct i2c_client *client,
 
 	pdata->bridge.funcs = &ti_sn_bridge_funcs;
 	pdata->bridge.of_node = client->dev.of_node;
+	pdata->bridge.ops = DRM_BRIDGE_OP_EDID;
+	pdata->bridge.type = DRM_MODE_CONNECTOR_eDP;
 
 	drm_bridge_add(&pdata->bridge);
 
-- 
Regards,

Laurent Pinchart