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path: root/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
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Diffstat (limited to 'drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c')
-rw-r--r--drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
index 41867be03751..0d5a5ad0c9ee 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
@@ -722,10 +722,9 @@ static int anx78xx_dp_link_training(struct anx78xx *anx78xx)
if (err)
return err;
- dpcd[0] = drm_dp_max_link_rate(anx78xx->dpcd);
- dpcd[0] = drm_dp_link_rate_to_bw_code(dpcd[0]);
err = regmap_write(anx78xx->map[I2C_IDX_TX_P0],
- SP_DP_MAIN_LINK_BW_SET_REG, dpcd[0]);
+ SP_DP_MAIN_LINK_BW_SET_REG,
+ anx78xx->dpcd[DP_MAX_LINK_RATE]);
if (err)
return err;
@@ -887,11 +886,17 @@ static const struct drm_connector_funcs anx78xx_connector_funcs = {
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
-static int anx78xx_bridge_attach(struct drm_bridge *bridge)
+static int anx78xx_bridge_attach(struct drm_bridge *bridge,
+ enum drm_bridge_attach_flags flags)
{
struct anx78xx *anx78xx = bridge_to_anx78xx(bridge);
int err;
+ if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) {
+ DRM_ERROR("Fix bridge driver to make connector optional!");
+ return -EINVAL;
+ }
+
if (!bridge->encoder) {
DRM_ERROR("Parent encoder object not found");
return -ENODEV;