hw/arm/aspeed: Describe each PCA9552 device

We have 2 distinct PCA9552 devices. Set their description
to distinguish them when looking at the trace events.

Description name taken from:
https://github.com/open-power/witherspoon-xml/blob/master/witherspoon.xml

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-8-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/aspeed.c

@@ -508,12 +508,15 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc)
 {
     AspeedSoCState *soc = &bmc->soc;
     uint8_t *eeprom_buf = g_malloc0(8 * 1024);
+    DeviceState *dev;
 
     /* Bus 3: TODO bmp280@77 */
     /* Bus 3: TODO max31785@52 */
     /* Bus 3: TODO dps310@76 */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), TYPE_PCA9552,
-                     0x60);
+    dev = i2c_try_create_slave(TYPE_PCA9552, 0x60);
+    qdev_prop_set_string(dev, "description", "pca1");
+    i2c_realize_and_unref(dev, aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3),
+                          &error_fatal);
 
     i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "tmp423", 0x4c);
     i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 5), "tmp423", 0x4c);
@@ -528,8 +531,10 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc)
 
     smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), 0x51,
                           eeprom_buf);
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), TYPE_PCA9552,
-                     0x60);
+    dev = i2c_try_create_slave(TYPE_PCA9552, 0x60);
+    qdev_prop_set_string(dev, "description", "pca0");
+    i2c_realize_and_unref(dev, aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11),
+                          &error_fatal);
     /* Bus 11: TODO ucd90160@64 */
 }