i2c-ocores: Can add I2C devices to the bus

There is sometimes a need for the ocores driver to add devices to the
bus when installed.

i2c_register_board_info can not always be used, because the I2C devices
 are not known at an early state, they could for instance be connected
 on a I2C bus on a PCI device which has the Open Cores IP.

i2c_new_device can not be used in all cases either since the resulting
bus nummer might be unknown.

The solution is the pass a list of I2C devices in the platform data to
the Open Cores driver. This is useful for MFD drivers.

Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index e5193bf75483..3542c6ba98f1 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -216,6 +216,7 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
         struct ocores_i2c_platform_data *pdata;
         struct resource *res, *res2;
         int ret;
+        int i;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!res)
@@ -271,6 +272,10 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
                 goto add_adapter_failed;
         }
 
+        /* add in known devices to the bus */
+        for (i = 0; i < pdata->num_devices; i++)
+                i2c_new_device(&i2c->adap, pdata->devices + i);
+
         return 0;
 
 add_adapter_failed: