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[v4,3/8] ARM: ACPI: Add power button device in ACPI DSDT table

Message ID 1449473992-11560-4-git-send-email-zhaoshenglong@huawei.com
State Superseded
Headers show

Commit Message

Shannon Zhao Dec. 7, 2015, 7:39 a.m. UTC 
From: Shannon Zhao <shannon.zhao@linaro.org>


Add power button device in ACPI DSDT table.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>

Reviewed-by: Wei Huang <wei@redhat.com>

Tested-by: Wei Huang <wei@redhat.com>

---
 hw/arm/virt-acpi-build.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

-- 
2.0.4
diff mbox

Patch

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index bf6b934..1424672 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -43,6 +43,7 @@ 
 #include "hw/pci/pci.h"
 
 #define ARM_SPI_BASE 32
+#define ACPI_POWER_BUTTON_DEVICE "PWRB"
 
 typedef struct VirtAcpiCpuInfo {
     DECLARE_BITMAP(found_cpus, VIRT_ACPI_CPU_ID_LIMIT);
@@ -340,6 +341,15 @@  static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap,
     aml_append(scope, dev);
 }
 
+static void acpi_dsdt_add_power_button(Aml *scope)
+{
+    Aml *dev = aml_device(ACPI_POWER_BUTTON_DEVICE);
+    aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C0C")));
+    aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
+    aml_append(dev, aml_name_decl("_UID", aml_int(0)));
+    aml_append(scope, dev);
+}
+
 /* RSDP */
 static GArray *
 build_rsdp(GArray *rsdp_table, GArray *linker, unsigned rsdt)
@@ -558,6 +568,7 @@  build_dsdt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info)
                       guest_info->use_highmem);
     acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO],
                        (irqmap[VIRT_GPIO] + ARM_SPI_BASE));
+    acpi_dsdt_add_power_button(scope);
 
     aml_append(dsdt, scope);