Re: [PATCH 3/8] usb: typec: mux: Get the mux identifier from function parameter

From: Greg Kroah-Hartman
Date: Thu Jun 28 2018 - 07:01:03 EST


On Wed, Jun 27, 2018 at 06:19:48PM +0300, Heikki Krogerus wrote:
> In order for the muxes to be usable with alternate modes,
> the alternate mode devices will need also to be able to get
> a handle to the muxes on top of the port devices. To make
> that possible, the muxes need to be possible to request with
> an identifier.
>
> This will change the API so that the mux identifier is given
> as a function parameter to typec_mux_get(), and the hard-coded
> "typec-mux" is replaced with that value.
>
> Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> ---
> drivers/usb/typec/class.c | 2 +-
> drivers/usb/typec/mux.c | 6 +++---
> include/linux/usb/typec_mux.h | 2 +-
> 3 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 2b3eaa969f3b..b860bd3a0acb 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -1357,7 +1357,7 @@ struct typec_port *typec_register_port(struct device *parent,
> goto err_switch;
> }
>
> - port->mux = typec_mux_get(cap->fwnode ? &port->dev : parent);
> + port->mux = typec_mux_get(parent, "typec-mux");

This changes the first parameter for this call, is that ok? Doesn't
that change the functionality here?

thanks,

greg k-h