UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: dts: am4372: Add idle_states for cpuidle 

Add idle_states table for CPU on am437x. 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>
This commit is contained in:
Dave Gerlach 2019-12-12 22:17:25 -06:00 committed by Tony Lindgren
parent c3e6fccafd
commit 89a7b191fc
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/arm/boot/dts/am4372.dtsi
View File

@ -45,6 +45,7 @@
#size-cells = <0>; #size-cells = <0>;
cpu: cpu@0 { cpu: cpu@0 {
compatible = "arm,cortex-a9"; compatible = "arm,cortex-a9";
enable-method = "ti,am4372";
device_type = "cpu"; device_type = "cpu";
reg = <0>; reg = <0>;
@ -54,6 +55,17 @@
operating-points-v2 = <&cpu0_opp_table>; operating-points-v2 = <&cpu0_opp_table>;
clock-latency = <300000>; /* From omap-cpufreq driver */ 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 = <100>;
min-residency-us = <300>;
local-timer-stop;
};
}; };
}; };