]> git.ipfire.org Git - thirdparty/u-boot.git/commitdiff
arm64: zynqmp: Reduced min-residency time for idle state node
authorJolly Shah <jolly.shah@xilinx.com>
Wed, 14 Jun 2017 22:03:52 +0000 (15:03 -0700)
committerMichal Simek <michal.simek@xilinx.com>
Tue, 25 Jul 2017 11:54:54 +0000 (13:54 +0200)
Changed min-residence to 10ms(was 100 ms) for cpu-sleep-0.
Tried lower values 5ms and 8ms and it worked fine with Debug Off.
But to accommodate PM Debug On case, 10 ms is required. With this
change, low power idle state is into effect more frequently.
Measured boot time with PM debugs On and Off. No change observed
compared to 100ms value.

Signed-off-by: Jolly Shah <jollys@xilinx.com>
Acked-by: Will Wong <willw@xilinx.com>
Tested-by: Koteswararao Nayudu <kotin@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
arch/arm/dts/zynqmp.dtsi

index c2bcb566df9c5a8e5a17b8873c06c8fb64a53b14..fe2faac3ac44a06f6ff559188d0d8925fc8403a3 100644 (file)
@@ -62,7 +62,7 @@
                                local-timer-stop;
                                entry-latency-us = <300>;
                                exit-latency-us = <600>;
-                               min-residency-us = <800000>;
+                               min-residency-us = <10000>;
                        };
                };
        };