The DP PHY is optional: the Rockchip RK3399 eDP controller (used as the internal eDP port) has no separate PHY device and relies on its built-in PHY, which is programmed directly through the GRF registers, so its DT node carries no "phys"/"phy-names" property.
Requesting the PHY with devm_phy_get() therefore returns -ENODEV (or -ENOSYS when CONFIG_GENERIC_PHY is disabled) and the driver logs a misleading "no DP phy configured" error at probe time before falling back to a NULL phy. Use devm_phy_optional_get() instead, which returns NULL when the PHY is absent and otherwise behaves identically, and drop the manual -ENODEV/ -ENOSYS handling. This also removes the spurious error message. Assisted-by: Claude:deepseek-v4-flash Signed-off-by: Jun Yan <[email protected]> --- .../gpu/drm/bridge/analogix/analogix_dp_core.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 18e76d1e78e1..28eb668d3e3f 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1427,21 +1427,9 @@ analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data) if (ret) return ERR_PTR(ret); - dp->phy = devm_phy_get(dp->dev, "dp"); - if (IS_ERR(dp->phy)) { - dev_err(dp->dev, "no DP phy configured\n"); - ret = PTR_ERR(dp->phy); - if (ret) { - /* - * phy itself is not enabled, so we can move forward - * assigning NULL to phy pointer. - */ - if (ret == -ENOSYS || ret == -ENODEV) - dp->phy = NULL; - else - return ERR_PTR(ret); - } - } + dp->phy = devm_phy_optional_get(dp->dev, "dp"); + if (IS_ERR(dp->phy)) + return ERR_CAST(dp->phy); dp->clock = devm_clk_get(&pdev->dev, "dp"); if (IS_ERR(dp->clock)) { -- 2.55.0
