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authorIlia Mirkin <imirkin@alum.mit.edu>2020-03-12 06:51:54 +0300
committerRob Clark <robdclark@chromium.org>2020-03-19 22:08:52 +0300
commitc479017faa3a9f6c60ea18ffe44e20b33487e10e (patch)
treecaaa0932f9bc41f6f695328deabc0b7bcf8e144d
parentde3916c70a24e3e1bdbf6b0a77d75b069d8953d9 (diff)
downloadlinux-c479017faa3a9f6c60ea18ffe44e20b33487e10e.tar.xz
drm/msm: avoid double-attaching hdmi/edp bridges
Each of hdmi and edp are already attached in msm_*_bridge_init. A second attachment returns -EBUSY, failing the driver load. Tested with HDMI on IFC6410 (APQ8064 / MDP4), but eDP case should be analogous. Fixes: 3ef2f119bd3ed (drm/msm: Use drm_attach_bridge() to attach a bridge to an encoder) Cc: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Reviewed-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> (hdmi part) Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
-rw-r--r--drivers/gpu/drm/msm/edp/edp.c4
-rw-r--r--drivers/gpu/drm/msm/hdmi/hdmi.c4
2 files changed, 0 insertions, 8 deletions
diff --git a/drivers/gpu/drm/msm/edp/edp.c b/drivers/gpu/drm/msm/edp/edp.c
index ad4e963ccd9b..106a67473af5 100644
--- a/drivers/gpu/drm/msm/edp/edp.c
+++ b/drivers/gpu/drm/msm/edp/edp.c
@@ -178,10 +178,6 @@ int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
goto fail;
}
- ret = drm_bridge_attach(encoder, edp->bridge, NULL);
- if (ret)
- goto fail;
-
priv->bridges[priv->num_bridges++] = edp->bridge;
priv->connectors[priv->num_connectors++] = edp->connector;
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 1a9b6289637d..737453b6e596 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -327,10 +327,6 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi,
goto fail;
}
- ret = drm_bridge_attach(encoder, hdmi->bridge, NULL);
- if (ret)
- goto fail;
-
priv->bridges[priv->num_bridges++] = hdmi->bridge;
priv->connectors[priv->num_connectors++] = hdmi->connector;