hw: arm: virt: Connect TMP105 alert pin to GPIO #4

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index e59843186c..6ba8bf8453 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -796,6 +796,9 @@ static void create_rtc(const VirtMachineState *vms, qemu_irq *pic)
 }
 
 static DeviceState *gpio_key_dev;
+static DeviceState *pl061_dev;
+uint32_t phandle_gpio;
+
 static void virt_powerdown_req(Notifier *n, void *opaque)
 {
     VirtMachineState *s = container_of(n, VirtMachineState, powerdown_notifier);
@@ -811,7 +814,6 @@ static void virt_powerdown_req(Notifier *n, void *opaque)
 static void create_gpio(const VirtMachineState *vms, qemu_irq *pic)
 {
     char *nodename;
-    DeviceState *pl061_dev;
     hwaddr base = vms->memmap[VIRT_GPIO].base;
     hwaddr size = vms->memmap[VIRT_GPIO].size;
     int irq = vms->irqmap[VIRT_GPIO];
@@ -820,6 +822,7 @@ static void create_gpio(const VirtMachineState *vms, qemu_irq *pic)
     pl061_dev = sysbus_create_simple("pl061", base, pic[irq]);
 
     uint32_t phandle = qemu_fdt_alloc_phandle(vms->fdt);
+    phandle_gpio = phandle;
     nodename = g_strdup_printf("/pl061@%" PRIx64, base);
     qemu_fdt_add_subnode(vms->fdt, nodename);
     qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
@@ -858,6 +861,7 @@ static void create_i2c(const VirtMachineState *vms, qemu_irq *pic)
     hwaddr i2c_addr = 0x48;
     const char compat1[] = "arm,versatile-i2c";
     const char compat2[] = "ti,tmp105";
+    qemu_irq tmp105_alert;
     DeviceState *dev;
     char *nodename;
     I2CBus *i2c;
@@ -865,6 +869,8 @@ static void create_i2c(const VirtMachineState *vms, qemu_irq *pic)
     dev = sysbus_create_simple("versatile_i2c", base, NULL);
     i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
     dev = i2c_create_slave(i2c, "tmp105", i2c_addr);
+    tmp105_alert = qdev_get_gpio_in(pl061_dev, 4); /* gpio 4 of pl061 */
+    qdev_connect_gpio_out(dev, 0, tmp105_alert);
     object_property_set_int(OBJECT(dev), 31000, "temperature", &error_abort);
 
     uint32_t phandle = qemu_fdt_alloc_phandle(vms->fdt);
@@ -881,6 +887,8 @@ static void create_i2c(const VirtMachineState *vms, qemu_irq *pic)
     qemu_fdt_add_subnode(vms->fdt, nodename);
     qemu_fdt_setprop(vms->fdt, nodename, "compatible", compat2, sizeof(compat2));
     qemu_fdt_setprop_cell(vms->fdt, nodename, "reg", i2c_addr);
+    qemu_fdt_setprop_cells(vms->fdt, nodename, "alert-gpios", phandle_gpio, 4, 0);
+
     g_free(nodename);
 }