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> --- hw/arm/virt.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 6f1b9d6..75a3a5c 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -562,6 +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", @@ -574,6 +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_setprop(vbi->fdt, "/gpio-keys", "autorepeat", NULL, 0); + + 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", 116); + qemu_fdt_setprop_cells(vbi->fdt, "/gpio-keys/poweroff", + "gpios", phandle, 3, 0); /* connect powerdown request */ qemu_register_powerdown_notifier(&virt_system_powerdown_notifier); -- 2.1.0