From df85901768622b8aea94d39a28effdbf90f7d4f0 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Mon, 11 Jul 2016 21:23:03 +0100 Subject: [acpi] Allow time for ACPI power off to take effect The ACPI power off sequence may not take effect immediately. Delay for one second, to eliminate potentially confusing log messages such as "Could not power off: Error 0x43902001 (http://ipx". Reported-by: Leonid Vasetsky Signed-off-by: Michael Brown --- src/arch/x86/interface/pcbios/acpipwr.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/arch/x86/interface/pcbios/acpipwr.c b/src/arch/x86/interface/pcbios/acpipwr.c index 63b986b6..d19f972d 100644 --- a/src/arch/x86/interface/pcbios/acpipwr.c +++ b/src/arch/x86/interface/pcbios/acpipwr.c @@ -23,6 +23,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); +#include #include #include #include @@ -111,6 +112,11 @@ int acpi_poweroff ( void ) { ACPI_PM1_CNT_SLP_EN ), pm1b_cnt ); } + /* On some systems, execution will continue briefly. Delay to + * avoid potentially confusing log messages. + */ + mdelay ( 1000 ); + DBGC ( colour, "ACPI power off failed\n" ); return -EPROTO; } -- cgit v1.2.3-55-g7522