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drm/msm/dsi: Set msm_dsi->encoders before initializing bridge

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The commit "drm: bridge: Link encoder and bridge in core code" updated
the drm_bridge_attach() API to also include the drm_encoder pointer
the bridge attaches to.

The func msm_dsi_manager_bridge_init() now relies on the drm_encoder
pointer stored in msm_dsi->encoders to pass the encoder to the bridge
API.

msm_dsi->encoders is unfortunately set after this function is called,
resulting in us passing a NULL pointer to drm_brigde_attach. This
results in an error and the DSI driver probe fails.

Move the initialization of msm_dsi->encoders[] a bit up. Also, don't
try to set the encoder's bridge. That's now managed by the bridge
API.

Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Archit Taneja 2017-01-11 11:59:56 +05:30 committed by Rob Clark
parent cd576abfff
commit 0bb70b82c2
1 changed files with 3 additions and 5 deletions
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8
drivers/gpu/drm/msm/dsi/dsi.c
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@ -205,6 +205,9 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
goto fail;
}
for (i = 0; i < MSM_DSI_ENCODER_NUM; i++)
msm_dsi->encoders[i] = encoders[i];
msm_dsi->bridge = msm_dsi_manager_bridge_init(msm_dsi->id);
if (IS_ERR(msm_dsi->bridge)) {
ret = PTR_ERR(msm_dsi->bridge);
@ -213,11 +216,6 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
goto fail;
}
for (i = 0; i < MSM_DSI_ENCODER_NUM; i++) {
encoders[i]->bridge = msm_dsi->bridge;
msm_dsi->encoders[i] = encoders[i];
}
/*
* check if the dsi encoder output is connected to a panel or an
* external bridge. We create a connector only if we're connected to a