From 2ec9a9f17de283f19ff26a62a51bf035d4518e20 Mon Sep 17 00:00:00 2001 From: Kun-Yi Chen Date: Wed, 25 Jun 2025 22:10:02 +0800 Subject: [PATCH] mb/lattepanda/mu: Update eDP/HDMI in devicetree Updated DDI port configuration to properly enable eDP (Port A) and HDMI (Port B) with HPD and DDC settings on LattePanda MU. This change ensures both internal and external displays are detected and initialized correctly during boot. Change-Id: I84e5bc4b8a26f58b9cb26a4018eef640ac245e7f Signed-off-by: Kun-Yi Chen Reviewed-on: https://review.coreboot.org/c/coreboot/+/88194 Reviewed-by: Matt DeVillier Reviewed-by: Paul Menzel Tested-by: build bot (Jenkins) --- src/mainboard/lattepanda/mu/devicetree.cb | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mainboard/lattepanda/mu/devicetree.cb b/src/mainboard/lattepanda/mu/devicetree.cb index ba55f1412a..563d8fbd2e 100644 --- a/src/mainboard/lattepanda/mu/devicetree.cb +++ b/src/mainboard/lattepanda/mu/devicetree.cb @@ -8,7 +8,9 @@ chip soc/intel/alderlake # Enable EDP in PortA register "ddi_portA_config" = "1" # Enable HDMI in Port B + register "ddi_portB_config" = "1" register "ddi_ports_config" = "{ + [DDI_PORT_A] = DDI_ENABLE_HPD, [DDI_PORT_B] = DDI_ENABLE_HPD | DDI_ENABLE_DDC, }"