RE: [PATCH 2/3] i3c: Add i3c_get_device_id helper

Vitor Soares
2019-04-16T14:48:38Z

Hi Boris,

From: Boris Brezillon <boris.brezillon@collabora.com>
Date: Tue, Apr 16, 2019 at 07:18:25

> On Mon, 15 Apr 2019 21:19:40 +0200
> Vitor Soares <vitor.soares@synopsys.com> wrote:
>
> > This helper return the i3c_device_id structure in order the client
> > have access to the driver data.
> >
> > Signed-off-by: Vitor Soares <vitor.soares@synopsys.com>
> > ---
> > drivers/i3c/device.c | 8 ++++++++
> > include/linux/i3c/device.h | 1 +
> > 2 files changed, 9 insertions(+)
> >
> > diff --git a/drivers/i3c/device.c b/drivers/i3c/device.c
> > index 472be99..8ab8e4c 100644
> > --- a/drivers/i3c/device.c
> > +++ b/drivers/i3c/device.c
> > @@ -235,6 +235,14 @@ struct i3c_device *dev_to_i3cdev(struct device *dev)
> > }
> > EXPORT_SYMBOL_GPL(dev_to_i3cdev);
> >
> > +const struct i3c_device_id *i3c_get_device_id(struct i3c_device *i3cdev)
> > +{
> > + const struct i3c_driver *i3cdrv = drv_to_i3cdrv(i3cdev->dev.driver);
> > +
> > + return i3cdrv->id_table;
> > +}
> > +EXPORT_SYMBOL_GPL(i3c_get_device_id);
>
> I think what you want is i3c_device_match_id().

I want the i3c_device_id struct of an i3c_device. What is the name that
you suggest?

>Just move the function
> to drivers/i3c/device.c, export it and define its prototype in
> include/i3c/device.h.

You are right, this should go for the device side.

>
> > +
> > /**
> > * i3c_driver_register_with_owner() - register an I3C device driver
> > *
> > diff --git a/include/linux/i3c/device.h b/include/linux/i3c/device.h
> > index 7ee7e30..ee48886 100644
> > --- a/include/linux/i3c/device.h
> > +++ b/include/linux/i3c/device.h
> > @@ -211,6 +211,7 @@ static inline struct i3c_driver *drv_to_i3cdrv(struct device_driver *drv)
> >
> > struct device *i3cdev_to_dev(struct i3c_device *i3cdev);
> > struct i3c_device *dev_to_i3cdev(struct device *dev);
> > +const struct i3c_device_id *i3c_get_device_id(struct i3c_device *i3cdev);
> >
> > static inline void i3cdev_set_drvdata(struct i3c_device *i3cdev,
> > void *data)

Best regards,
Vitor Soares