From mboxrd@z Thu Jan 1 00:00:00 1970 From: al.stone@linaro.org (al.stone at linaro.org) Date: Fri, 10 Jan 2014 15:52:16 -0700 Subject: [PATCH v6 2/6] ACPI: bus master reload not supported in reduced HW mode In-Reply-To: <1389394340-2680-1-git-send-email-al.stone@linaro.org> References: <1389394340-2680-1-git-send-email-al.stone@linaro.org> Message-ID: <1389394340-2680-3-git-send-email-al.stone@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Al Stone Do not save and restore bus master reload registers in suspend/resume when in reduced HW mode; according to the spec, no such registers should exist Signed-off-by: Al Stone --- drivers/acpi/processor_idle.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 597cdab..eac984a 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -229,12 +229,14 @@ static struct syscore_ops acpi_processor_syscore_ops = { void acpi_processor_syscore_init(void) { - register_syscore_ops(&acpi_processor_syscore_ops); + if (!acpi_gbl_reduced_hardware) + register_syscore_ops(&acpi_processor_syscore_ops); } void acpi_processor_syscore_exit(void) { - unregister_syscore_ops(&acpi_processor_syscore_ops); + if (!acpi_gbl_reduced_hardware) + unregister_syscore_ops(&acpi_processor_syscore_ops); } #endif /* CONFIG_PM_SLEEP */ -- 1.8.4.2