From: Shannon Zhao <shannon.z...@linaro.org>
Add a gpio-keys node. This is used for Poweroff for the systems which
use DT not ACPI.
Signed-off-by: Shannon Zhao <zhaoshengl...@huawei.com>
Signed-off-by: Shannon Zhao <shannon.z...@linaro.org>
Tested-by: Wei Huang <w...@redhat.com>
Message-id: 1449804086-3464-11-git-send-email-zhaoshengl...@huawei.com
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
hw/arm/virt.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index cb1d45b..bd6781bd 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -52,6 +52,7 @@
#include "kvm_arm.h"
#include "hw/smbios/smbios.h"
#include "qapi/visitor.h"
+#include <linux/input.h>
/* Number of external interrupt lines to configure the GIC with */
#define NUM_IRQS 256
@@ -561,6 +562,7 @@ static void create_gpio(const VirtBoardInfo *vbi, qemu_irq
*pic)
pl061_dev = sysbus_create_simple("pl061", base, pic[irq]);
+ uint32_t phandle = qemu_fdt_alloc_phandle(vbi->fdt);
nodename = g_strdup_printf("/pl061@%" PRIx64, base);
qemu_fdt_add_subnode(vbi->fdt, nodename);
qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "reg",
@@ -573,6 +575,20 @@ static void create_gpio(const VirtBoardInfo *vbi, qemu_irq
*pic)
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop_cell(vbi->fdt, nodename, "clocks", vbi->clock_phandle);
qemu_fdt_setprop_string(vbi->fdt, nodename, "clock-names", "apb_pclk");
+ qemu_fdt_setprop_cell(vbi->fdt, nodename, "phandle", phandle);
+
+ qemu_fdt_add_subnode(vbi->fdt, "/gpio-keys");
+ qemu_fdt_setprop_string(vbi->fdt, "/gpio-keys", "compatible", "gpio-keys");
+ qemu_fdt_setprop_cell(vbi->fdt, "/gpio-keys", "#size-cells", 0);
+ qemu_fdt_setprop_cell(vbi->fdt, "/gpio-keys", "#address-cells", 1);
+
+ qemu_fdt_add_subnode(vbi->fdt, "/gpio-keys/poweroff");
+ qemu_fdt_setprop_string(vbi->fdt, "/gpio-keys/poweroff",
+ "label", "GPIO Key Poweroff");
+ qemu_fdt_setprop_cell(vbi->fdt, "/gpio-keys/poweroff", "linux,code",
+ KEY_POWER);
+ qemu_fdt_setprop_cells(vbi->fdt, "/gpio-keys/poweroff",
+ "gpios", phandle, 3, 0);
/* connect powerdown request */
qemu_register_powerdown_notifier(&virt_system_powerdown_notifier);
--
1.9.1
