[PATCH AUTOSEL 5.10 030/100] drm/bridge/analogix/anx78xx: Setup encoder before registering connector

Sasha Levin
2021-05-03T16:49:52Z

From: Lyude Paul <lyude@redhat.com>

[ Upstream commit 9962849d0871f5e53d0e3b3d84561f8f2847fbf4 ]

Since encoder mappings for connectors are exposed to userspace, we should
be attaching the encoder before exposing the connector to userspace. Just a
drive-by fix for an issue I noticed while fixing up usages of
drm_dp_aux_init()/drm_dp_aux_register() across the tree.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210219215326.2227596-9-lyude@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
index 81debd02c169..fbfe0cc89ba4 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
@@ -924,12 +924,6 @@ static int anx78xx_bridge_attach(struct drm_bridge *bridge,
drm_connector_helper_add(&anx78xx->connector,
&anx78xx_connector_helper_funcs);

- err = drm_connector_register(&anx78xx->connector);
- if (err) {
- DRM_ERROR("Failed to register connector: %d\n", err);
- return err;
- }
-
anx78xx->connector.polled = DRM_CONNECTOR_POLL_HPD;

err = drm_connector_attach_encoder(&anx78xx->connector,
@@ -939,6 +933,12 @@ static int anx78xx_bridge_attach(struct drm_bridge *bridge,
return err;
}

+ err = drm_connector_register(&anx78xx->connector);
+ if (err) {
+ DRM_ERROR("Failed to register connector: %d\n", err);
+ return err;
+ }
+
return 0;
}

--
2.30.2