From: Shannon Zhao <shannon.z...@linaro.org> There is a problem for power button that it will not work if an early system_powerdown request happens before guest gpio driver loads.
Fix this problem by using gpio_key. Signed-off-by: Shannon Zhao <shannon.z...@linaro.org> --- hw/arm/virt.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 95331a5..10e385d 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -581,11 +581,11 @@ static void create_rtc(const VirtBoardInfo *vbi, qemu_irq *pic) g_free(nodename); } -static DeviceState *pl061_dev; +static DeviceState *gpio_key_dev; static void virt_powerdown_req(Notifier *n, void *opaque) { /* use gpio Pin 3 for power button event */ - qemu_set_irq(qdev_get_gpio_in(pl061_dev, 3), 1); + qemu_set_irq(qdev_get_gpio_in(gpio_key_dev, 0), 1); } static Notifier virt_system_powerdown_notifier = { @@ -595,6 +595,7 @@ static Notifier virt_system_powerdown_notifier = { static void create_gpio(const VirtBoardInfo *vbi, qemu_irq *pic) { char *nodename; + DeviceState *pl061_dev; hwaddr base = vbi->memmap[VIRT_GPIO].base; hwaddr size = vbi->memmap[VIRT_GPIO].size; int irq = vbi->irqmap[VIRT_GPIO]; @@ -617,6 +618,8 @@ static void create_gpio(const VirtBoardInfo *vbi, qemu_irq *pic) qemu_fdt_setprop_string(vbi->fdt, nodename, "clock-names", "apb_pclk"); qemu_fdt_setprop_cell(vbi->fdt, nodename, "phandle", phandle); + gpio_key_dev = sysbus_create_simple("gpio_key", -1, + qdev_get_gpio_in(pl061_dev, 3)); 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); -- 2.0.4