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drm/mediatek: Only try to attach bridge if there is one 

Even if dsi->bridge is NULL, we still try to call drm_bridge_attach,
and print out an error message, before creating the connector.

When no bridge is provided, let's skip these 2 steps and directly
create the connector.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
hifive-unleashed-5.1
Nicolas Boichat 2018-11-26 12:07:37 +08:00 committed by CK Hu
parent 651022382c
commit a0071bc455
1 changed files with 7 additions and 4 deletions
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11
drivers/gpu/drm/mediatek/mtk_dsi.c
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@ -818,10 +818,13 @@ static int mtk_dsi_create_conn_enc(struct drm_device *drm, struct mtk_dsi *dsi)
dsi->encoder.possible_crtcs = 1;
/* If there's a bridge, attach to it and let it create the connector */
ret = drm_bridge_attach(&dsi->encoder, dsi->bridge, NULL);
if (ret) {
DRM_ERROR("Failed to attach bridge to drm\n");
if (dsi->bridge) {
ret = drm_bridge_attach(&dsi->encoder, dsi->bridge, NULL);
if (ret) {
DRM_ERROR("Failed to attach bridge to drm\n");
goto err_encoder_cleanup;
}
} else {
/* Otherwise create our own connector and attach to a panel */
ret = mtk_dsi_create_connector(drm, dsi);
if (ret)