Prepare for chained bridge with the addition of
get_edid support.
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Jonas Karlman <jonas@xxxxxxxxx>
Cc: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
---
drivers/gpu/drm/bridge/tc358767.c | 24 +++++++++++++++++-------
1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 211a058c7243..42a153bcde64 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1316,6 +1316,20 @@ static void tc_bridge_mode_set(struct drm_bridge *bridge,
tc->mode = *mode;
}
+static struct edid *tc_get_edid(struct drm_bridge *bridge,
+ struct drm_connector *connector)
+{
+ struct tc_data *tc = bridge_to_tc(bridge);
+ struct edid *edid;
+
+ edid = drm_get_edid(connector, &tc->aux.ddc);
+
+ kfree(tc->edid);
+ tc->edid = edid;
+
+ return edid;
+}
+
static int tc_connector_get_modes(struct drm_connector *connector)
{
struct tc_data *tc = connector_to_tc(connector);
@@ -1335,12 +1349,7 @@ static int tc_connector_get_modes(struct drm_connector *connector)
return count;
}
- edid = drm_get_edid(connector, &tc->aux.ddc);
-
- kfree(tc->edid);
- tc->edid = edid;
- if (!edid)
- return 0;
+ edid = tc_get_edid(&tc->bridge, connector);
drm_connector_update_edid_property(connector, edid);
count = drm_add_edid_modes(connector, edid);
@@ -1451,6 +1460,7 @@ static const struct drm_bridge_funcs tc_bridge_funcs = {
.disable = tc_bridge_disable,
.mode_fixup = tc_bridge_mode_fixup,
.detect = tc_bridge_detect,
+ .get_edid = tc_get_edid,
};
static bool tc_readable_reg(struct device *dev, unsigned int reg)
@@ -1684,7 +1694,7 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id)
return ret;
tc->bridge.funcs = &tc_bridge_funcs;
- tc->bridge.ops = DRM_BRIDGE_OP_DETECT;
+ tc->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID;
tc->bridge.of_node = dev->of_node;
drm_bridge_add(&tc->bridge);
--
2.20.1
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