From 3e6ebb64a392ebc712347413f1065300ed008a8f Mon Sep 17 00:00:00 2001 From: Shannon Zhao Date: Thu, 17 Dec 2015 13:37:14 +0000 Subject: ARM: Virt: Add gpio-keys node for Poweroff using DT Add a gpio-keys node. This is used for Poweroff for the systems which use DT not ACPI. Signed-off-by: Shannon Zhao Signed-off-by: Shannon Zhao Tested-by: Wei Huang Message-id: 1449804086-3464-11-git-send-email-zhaoshenglong@huawei.com [PMM: use "standard-headers/linux/input.h" rather than ] Signed-off-by: Peter Maydell --- hw/arm/virt.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'hw/arm') diff --git a/hw/arm/virt.c b/hw/arm/virt.c index cb1d45bcaf..acc1fcbdd1 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 "standard-headers/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); -- cgit v1.2.3