| Message ID | da3070d9-e016-4167-843f-a08d5b2dc1fe@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | staging: olpc_dcon: Remove I2C_CLASS_DDC support | expand |
On Thu, Oct 26, 2023 at 10:49:21PM +0200, Heiner Kallweit wrote: > olpc_dcon is the only remaining i2c client device driver declaring > I2C_CLASS_DDC support after the legacy eeprom driver has been removed. > > olpc_dcon is only used on olpc devices, connected to an i2c adapter > driven by scx200_acb. This adapter driver declares support for > I2C_CLASS_HWMON and I2C_CLASS_SPD. Therefore we can safely drop > I2C_CLASS_DDC support in olpc_dcon. > > That's the last step before I2C_CLASS_DDC can be removed in general. > > This patch is solely based on documentation, and I don't have an olpc > device for testing. Therefore some testing would be appreciated before > patch is applied. Yes, testing would be good, for sure. Still, I think we can apply it even without. Because we are not dealing with HW features here, but only with the Linux internal handling of i2c adapter classes. So: Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> > > Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> > --- > drivers/staging/olpc_dcon/olpc_dcon.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c > index d5271eac1..08ec3aae9 100644 > --- a/drivers/staging/olpc_dcon/olpc_dcon.c > +++ b/drivers/staging/olpc_dcon/olpc_dcon.c > @@ -777,7 +777,7 @@ static struct i2c_driver dcon_driver = { > .name = "olpc_dcon", > .pm = &dcon_pm_ops, > }, > - .class = I2C_CLASS_DDC | I2C_CLASS_HWMON, > + .class = I2C_CLASS_HWMON, > .id_table = dcon_idtable, > .probe = dcon_probe, > .remove = dcon_remove, > -- > 2.42.0 >
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c index d5271eac1..08ec3aae9 100644 --- a/drivers/staging/olpc_dcon/olpc_dcon.c +++ b/drivers/staging/olpc_dcon/olpc_dcon.c @@ -777,7 +777,7 @@ static struct i2c_driver dcon_driver = { .name = "olpc_dcon", .pm = &dcon_pm_ops, }, - .class = I2C_CLASS_DDC | I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON, .id_table = dcon_idtable, .probe = dcon_probe, .remove = dcon_remove,
olpc_dcon is the only remaining i2c client device driver declaring I2C_CLASS_DDC support after the legacy eeprom driver has been removed. olpc_dcon is only used on olpc devices, connected to an i2c adapter driven by scx200_acb. This adapter driver declares support for I2C_CLASS_HWMON and I2C_CLASS_SPD. Therefore we can safely drop I2C_CLASS_DDC support in olpc_dcon. That's the last step before I2C_CLASS_DDC can be removed in general. This patch is solely based on documentation, and I don't have an olpc device for testing. Therefore some testing would be appreciated before patch is applied. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> --- drivers/staging/olpc_dcon/olpc_dcon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)