diff options
| author | Shannon Zhao <shannon.zhao@linaro.org> | 2016-03-30 17:27:22 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-03-30 17:27:22 +0100 |
| commit | 94f02c5ea9430be935088b2574f72f2dcf902997 (patch) | |
| tree | cfe9975c24b86df059dba320eccdcd48bac0b12d /hw/arm | |
| parent | e5a8152c9bfd3d40c37711ba5b704f277cbc0c54 (diff) | |
ARM: Virt: Use gpio_key for power button
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.zhao@linaro.org>
Message-id: 1458221140-15232-3-git-send-email-zhaoshenglong@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm')
| -rw-r--r-- | hw/arm/virt.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c index a5e787dec6..56d35c7716 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -582,11 +582,11 @@ 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 = { @@ -596,6 +596,7 @@ 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]; @@ -618,6 +619,8 @@ 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); |