On Tue, May 21, 2013 at 12:27:47AM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 22:11 Mon 20 May , Sascha Hauer wrote:
> > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> > ---
> > drivers/i2c/i2c.c | 13 +++++++++++--
> > 1 file changed, 11 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/i2c/i2c.c b/drivers/i2c/i2c.c
> > index 53a11fe..ddf0082 100644
> > --- a/drivers/i2c/i2c.c
> > +++ b/drivers/i2c/i2c.c
> > @@ -384,8 +384,17 @@ int i2c_add_numbered_adapter(struct i2c_adapter *adapter)
> > {
> > int ret;
> >
> > - if (i2c_get_adapter(adapter->nr))
> > - return -EBUSY;
> > + if (adapter->nr < 0) {
> > + int nr;
> > +
> > + for (nr = 0;; nr++)
> > + if (!i2c_get_adapter(nr))
> > + break;
> > + adapter->nr = nr;
> > + } else {
> > + if (i2c_get_adapter(adapter->nr))
> > + return -EBUSY;
> > + }
>
> I send a patch exactly the same on spi and you refuse it
The time you sent it we talked about platform devices and I still think
that it's not a good idea to register the SPI masters with dynamic bus
numbers and to have statically assigned numbers in the spi_board_info.
Sascha
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