8f9e91ad03
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
49 lines
1.2 KiB
Diff
49 lines
1.2 KiB
Diff
From 285e69b993d263f7e5dd7b72bfc4b4d4d85457e9 Mon Sep 17 00:00:00 2001
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From: popcornmix <popcornmix@gmail.com>
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Date: Tue, 5 Apr 2016 19:40:12 +0100
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Subject: [PATCH] reboot: Use power off rather than busy spinning when halt is
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requested
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reboot: Use power off rather than busy spinning when halt is requested
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Busy spinning after halt is dumb
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We've previously applied this patch to arch/arm
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but it is currenltly missing in arch/arm64
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Pi4 after "sudo halt" uses 520mA
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Pi4 after "sudo shutdown now" uses 310mA
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Make them both use the lower powered option
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Signed-off-by: Dom Cobley <popcornmix@gmail.com>
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---
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arch/arm/kernel/reboot.c | 4 +---
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arch/arm64/kernel/process.c | 4 +---
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2 files changed, 2 insertions(+), 6 deletions(-)
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--- a/arch/arm/kernel/reboot.c
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+++ b/arch/arm/kernel/reboot.c
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@@ -102,9 +102,7 @@ void machine_shutdown(void)
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*/
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void machine_halt(void)
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{
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- local_irq_disable();
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- smp_send_stop();
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- while (1);
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+ machine_power_off();
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}
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/*
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--- a/arch/arm64/kernel/process.c
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+++ b/arch/arm64/kernel/process.c
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@@ -97,9 +97,7 @@ void machine_shutdown(void)
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*/
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void machine_halt(void)
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{
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- local_irq_disable();
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- smp_send_stop();
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- while (1);
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+ machine_power_off();
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}
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/*
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