[PATCH v4 3/3] arm64: dts: qcom: Add INT2 GDSC to Kaanapali DPU

From: Yongxing Mou

Date: Fri Oct 23 2026 - 04:18:42 EST


The INT2 GDSC on Kaanapali (SM8850) powers the VIG2, VIG3 and DMA5
source pipes. Without enabling it, these pipes remain inaccessible.

The DPU is supplied by both CORE and INT2, so describe both GDSCs as
its power domains rather than attaching the DPU directly to their
parent MMCX domain.

Keep CORE attached to the parent MDSS device because it also supplies
shared MDSS hardware outside the DPU.

Reviewed-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
Signed-off-by: Yongxing Mou <yongxing.mou@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/kaanapali.dtsi | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/kaanapali.dtsi b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
index e48a179d0722..98d367b9dac7 100644
--- a/arch/arm64/boot/dts/qcom/kaanapali.dtsi
+++ b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
@@ -3674,7 +3674,9 @@ mdss_mdp: display-controller@9801000 {

operating-points-v2 = <&mdp_opp_table>;

- power-domains = <&rpmhpd RPMHPD_MMCX>;
+ power-domains = <&dispcc DISP_CC_MDSS_CORE_GDSC>,
+ <&dispcc DISP_CC_MDSS_CORE_INT2_GDSC>;
+ power-domain-names = "core", "int2";

ports {
#address-cells = <1>;

--
2.43.0