[PATCH 3/3] arm64: dts: apple: t8103: Add apple, min-ps to DCP PMGR nodes

Hector Martin marcan at marcan.st
Wed Dec 8 20:45:01 PST 2021


This is required for DCP to boot successfully; it seems if power gating
is allowed, they do not wake up properly.

Signed-off-by: Hector Martin <marcan at marcan.st>
---
 arch/arm64/boot/dts/apple/t8103-pmgr.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi b/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
index 1310be74df1d..fc51bc872468 100644
--- a/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
@@ -665,6 +665,7 @@ ps_dispext_cpu0: power-controller at 378 {
 		#reset-cells = <0>;
 		label = "dispext_cpu0";
 		power-domains = <&ps_dispext_fe>;
+		apple,min-state = <4>;
 	};
 
 	ps_jpg: power-controller at 3c0 {
@@ -1005,6 +1006,7 @@ ps_disp0_cpu0: power-controller at 10018 {
 		label = "disp0_cpu0";
 		power-domains = <&ps_disp0_fe>;
 		apple,always-on; /* TODO: figure out if we can enable PM here */
+		apple,min-state = <4>;
 	};
 };
 
-- 
2.33.0




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