]> git.dujemihanovic.xyz Git - 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, 28 Nov 2017 15:09:07 +0000 (16:09 +0100)
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 0759a2b7234af3135d8748206a4927a59930506f..fc34033f941595afd20edf066acd98adb77e3401 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>;
                        };
                };
        };