[PATCH v2 3/3] arm64: dts: qcom: Add INT2 GDSC to Kaanapali DPU

From: Yongxing Mou

Date: Tue Sep 15 2026 - 05:34:58 EST


The INT2 GDSC on Kaanapali (SM8850) powers a subset of the DPU
source pipes (VIG2/VIG3/DMA5). Add it as a second power domain of
the display-controller (DPU) node, alongside the existing MMCX
performance-state power domain.

The MDSS node's CORE_GDSC is unaffected, since it continues to power
the rest of the MDSS hardware on its own.

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 ace19b8b12d7..b3e3cd1d311c 100644
--- a/arch/arm64/boot/dts/qcom/kaanapali.dtsi
+++ b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
@@ -3619,7 +3619,9 @@ mdss_mdp: display-controller@9801000 {

operating-points-v2 = <&mdp_opp_table>;

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

ports {
#address-cells = <1>;

--
2.43.0