On 2018-04-30 13:55, Wolfram Sang wrote: > Similar to mux devices, create special symlinks to connect the demuxed > bus with the demux device. > > Signed-off-by: Wolfram Sang <[email protected]> > --- > drivers/i2c/muxes/i2c-demux-pinctrl.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/i2c/muxes/i2c-demux-pinctrl.c > b/drivers/i2c/muxes/i2c-demux-pinctrl.c > index 035032e20327..d5e7d4aa6ee1 100644 > --- a/drivers/i2c/muxes/i2c-demux-pinctrl.c > +++ b/drivers/i2c/muxes/i2c-demux-pinctrl.c > @@ -116,6 +116,11 @@ static int i2c_demux_activate_master(struct > i2c_demux_pinctrl_priv *priv, u32 ne > if (ret < 0) > goto err_with_put; > > + sysfs_create_link(&priv->cur_adap.dev.kobj, &priv->dev->kobj, > + "demux_device"); > + sysfs_create_link(&priv->dev->kobj, &priv->cur_adap.dev.kobj, > + "channel-0"); > +
>From sysfs.h: int __must_check sysfs_create_link(...); Cheers, Peter > return 0; > > err_with_put: > @@ -135,6 +140,9 @@ static int i2c_demux_deactivate_master(struct > i2c_demux_pinctrl_priv *priv) > if (cur < 0) > return 0; > > + sysfs_remove_link(&priv->dev->kobj, "channel-0"); > + sysfs_remove_link(&priv->cur_adap.dev.kobj, "demux_device"); > + > i2c_del_adapter(&priv->cur_adap); > i2c_put_adapter(priv->chan[cur].parent_adap); > >
