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| author | Richard Röjfors <richard.rojfors.ext@mocean-labs.com> | 2009-06-05 15:40:32 +0200 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2009-06-13 10:39:28 +0100 |
| commit | dd14be4c274fc484eccace03ae9726e516630331 (patch) | |
| tree | 3b8cfb3a060b9f1232d37de749b82c659248e8c5 /drivers/i2c | |
| parent | 7d85ccd816535f56880f7dfdb4de056794376b2c (diff) | |
| download | lwn-dd14be4c274fc484eccace03ae9726e516630331.tar.gz lwn-dd14be4c274fc484eccace03ae9726e516630331.zip | |
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>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-ocores.c | 5 |
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: |