From: Al Stone <al.stone@xxxxxxxxxx>
Since some of the FADT fields reserved are not to be used by the OSPM
in the HW reduced mode, do not map in the memory areas that the FADT
fields reference.
Signed-off-by: Al Stone <al.stone@xxxxxxxxxx>
---
drivers/acpi/osl.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 34cd2c5..3ac5076 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -160,6 +160,9 @@ static u32 acpi_osi_handler(acpi_string interface, u32 supported)
return supported;
}
+#ifdef CONFIG_ACPI_REDUCED_HARDWARE
+static int __init acpi_reserve_resources(void) { return 0; }
+#else
static void __init acpi_request_region (struct acpi_generic_address *gas,
unsigned int length, char *desc)
{
@@ -210,6 +213,7 @@ static int __init acpi_reserve_resources(void)
return 0;
}
device_initcall(acpi_reserve_resources);
+#endif
void acpi_os_printf(const char *fmt, ...)
{
@@ -1772,6 +1776,9 @@ static int __init acpi_no_auto_ssdt_setup(char *s)
__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);
+#ifdef CONFIG_ACPI_REDUCED_HARDWARE
+acpi_status __init acpi_os_initialize(void) { return AE_OK; }
+#else
acpi_status __init acpi_os_initialize(void)
{
acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1a_event_block);
@@ -1781,6 +1788,7 @@ acpi_status __init acpi_os_initialize(void)
return AE_OK;
}
+#endif
acpi_status __init acpi_os_initialize1(void)
{
--
1.8.3.1
--
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