From f8378c0403813fd7cdf0eb5cb878b1ff290046c4 Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Mon, 6 Dec 2021 16:29:16 -0800 Subject: [PATCH] drm/bridge: parade-ps8640: Add backpointer to drm_device in drm_dp_aux When we added the support for the AUX channel in commit 13afcdd7277e ("drm/bridge: parade-ps8640: Add support for AUX channel") we forgot to set "drm_dev" to avoid the warning splat at the beginning of drm_dp_aux_register(). Since everything was working I guess I never noticed the splat when testing against mainline. In any case, it's easy to fix. This is basically just like commit 6cba3fe43341 ("drm/dp: Add backpointer to drm_device in drm_dp_aux") but just for the parade-ps8640. Fixes: 13afcdd7277e ("drm/bridge: parade-ps8640: Add support for AUX channel") Signed-off-by: Douglas Anderson Reviewed-by: Philip Chen Link: https://patchwork.freedesktop.org/patch/msgid/20211206162907.1.I1f5d1eba741e4663050ec1b8e39a753f6e42e38b@changeid --- drivers/gpu/drm/bridge/parade-ps8640.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c b/drivers/gpu/drm/bridge/parade-ps8640.c index 26898042ba3d7..818704bf5e860 100644 --- a/drivers/gpu/drm/bridge/parade-ps8640.c +++ b/drivers/gpu/drm/bridge/parade-ps8640.c @@ -449,6 +449,7 @@ static int ps8640_bridge_attach(struct drm_bridge *bridge, if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) return -EINVAL; + ps_bridge->aux.drm_dev = bridge->dev; ret = drm_dp_aux_register(&ps_bridge->aux); if (ret) { dev_err(dev, "failed to register DP AUX channel: %d\n", ret);