The DisplayPort phy is actually part of the Power Management Unit system controller, thus it should be its child, instead of sibling node with syscon phandle. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- --- drivers/phy/samsung/phy-exynos-dp-video.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/phy/samsung/phy-exynos-dp-video.c b/drivers/phy/samsung/phy-exynos-dp-video.c index 2b670ef91deb..6069fedbd8f3 100644 --- a/drivers/phy/samsung/phy-exynos-dp-video.c +++ b/drivers/phy/samsung/phy-exynos-dp-video.c @@ -83,8 +83,11 @@ static int exynos_dp_video_phy_probe(struct platform_device *pdev) if (!state) return -ENOMEM; - state->regs = syscon_regmap_lookup_by_phandle(dev->of_node, - "samsung,pmu-syscon"); + state->regs = syscon_node_to_regmap(dev->parent->of_node); + if (IS_ERR(state->regs)) + /* Backwards compatible way */ + state->regs = syscon_regmap_lookup_by_phandle(dev->of_node, + "samsung,pmu-syscon"); if (IS_ERR(state->regs)) { dev_err(dev, "Failed to lookup PMU regmap\n"); return PTR_ERR(state->regs); -- 2.34.1