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[Qemu-devel] [PATCH v3 1/7] arm: Uniquely name imx25 I2C buses.


From: Alastair D'Silva
Subject: [Qemu-devel] [PATCH v3 1/7] arm: Uniquely name imx25 I2C buses.
Date: Fri, 2 Dec 2016 16:46:11 +1100

From: Alastair D'Silva <address@hidden>

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 <address@hidden>
---
 hw/arm/imx25_pdk.c | 4 +---
 hw/i2c/imx_i2c.c   | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/hw/arm/imx25_pdk.c b/hw/arm/imx25_pdk.c
index 025b608..c6f04d3 100644
--- a/hw/arm/imx25_pdk.c
+++ b/hw/arm/imx25_pdk.c
@@ -138,9 +138,7 @@ static void imx25_pdk_init(MachineState *machine)
          * We add it here (only on qtest usage) to be able to do a bit
          * of simple qtest. See "make check" for details.
          */
-        i2c_create_slave((I2CBus *)qdev_get_child_bus(DEVICE(&s->soc.i2c[0]),
-                                                      "i2c"),
-                         "ds1338", 0x68);
+        i2c_create_slave(s->soc.i2c[0].bus, "ds1338", 0x68);
     }
 }
 
diff --git a/hw/i2c/imx_i2c.c b/hw/i2c/imx_i2c.c
index 37e5a62..6c81b98 100644
--- 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)
-- 
2.9.3




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