arm: Uniquely name imx25 I2C buses.

The imx25 chip provides 3 i2c buses, but they have all been named
"i2c", which makes it difficult to predict which bus a device will
be connected to when specified on the command line.

This patch addresses the issue by naming the buses uniquely:
  i2c-bus.0 i2c-bus.1 i2c-bus.2

Signed-off-by: Alastair D'Silva <[email protected]>
Message-id: 20170105043430[email protected]
Reviewed-by: Peter Maydell <[email protected]>
Signed-off-by: Peter Maydell <[email protected]>

diff --git a/hw/arm/imx25_pdk.c b/hw/arm/imx25_pdk.c
index 025b60843e6c59e80484997785297708d1056d8e..44e741fde3e84300d1140953535c3fbbb33f51dc 100644 (file)
--- a/hw/arm/imx25_pdk.c
+++ b/hw/arm/imx25_pdk.c
@@ -139,7 +139,7 @@ static void imx25_pdk_init(MachineState *machine)
          * of simple qtest. See "make check" for details.
          */
         i2c_create_slave((I2CBus *)qdev_get_child_bus(DEVICE(&s->soc.i2c[0]),
-                                                      "i2c"),
+                                                      "i2c-bus.0"),
                          "ds1338", 0x68);
     }
 }

diff --git a/hw/i2c/imx_i2c.c b/hw/i2c/imx_i2c.c
index 37e5a62ce759c99de1689f83615be58a2e543dbd..6c81b98ebd88460a34cbd39d3d61faa7602725b2 100644 (file)
--- a/hw/i2c/imx_i2c.c
+++ b/hw/i2c/imx_i2c.c
@@ -310,7 +310,7 @@ static void imx_i2c_realize(DeviceState *dev, Error **errp)
                           IMX_I2C_MEM_SIZE);
     sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
     sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq);
-    s->bus = i2c_init_bus(DEVICE(dev), "i2c");
+    s->bus = i2c_init_bus(DEVICE(dev), NULL);
 }
 
 static void imx_i2c_class_init(ObjectClass *klass, void *data)