From: Dave Gerlach <d-gerlach@ti.com>
Date: Fri, 13 Dec 2019 04:17:24 +0000 (-0600)
Subject: ARM: dts: am33xx: Add idle_states for cpuidle
X-Git-Tag: v5.7-rc1~97^2~38^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c3e6fccafd6ecc6f59f63aedcc6dac0f01012c3a;p=thirdparty%2Fkernel%2Flinux.git

ARM: dts: am33xx: Add idle_states for cpuidle

Add idle_states table for CPU on am335x. Currently just add C1 state
which gates the MPU clock domain.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 41dcfb37155a7..430a634357a1e 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -47,6 +47,7 @@
 		#size-cells = <0>;
 		cpu@0 {
 			compatible = "arm,cortex-a8";
+			enable-method = "ti,am3352";
 			device_type = "cpu";
 			reg = <0>;
 
@@ -56,6 +57,17 @@
 			clock-names = "cpu";
 
 			clock-latency = <300000>; /* From omap-cpufreq driver */
+			cpu-idle-states = <&mpu_gate>;
+		};
+
+		idle-states {
+			mpu_gate: mpu_gate {
+				compatible = "arm,idle-state";
+				entry-latency-us = <40>;
+				exit-latency-us = <90>;
+				min-residency-us = <300>;
+				ti,idle-wkup-m3;
+			};
 		};
 	};