linux-kernel - Re: [PATCH 2/3] usb: typec: Add wrapper for bus switch set code

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Message-ID: <Y8aJrND3oukulX5g@kuha.fi.intel.com>
Date:   Tue, 17 Jan 2023 13:42:36 +0200
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Prashant Malani <pmalani@...omium.org>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        bleung@...omium.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 2/3] usb: typec: Add wrapper for bus switch set code

On Thu, Jan 12, 2023 at 10:16:07PM +0000, Prashant Malani wrote:
> Add a wrapper that calls the set() function for various switches
> associated with a port altmode.
> 
> Right now, it just wraps the existing typec_mux_set() command,
> but it can be expanded to include other switches in future patches.
> 
> No functional changes introduced by this patch.
> 
> Signed-off-by: Prashant Malani <pmalani@...omium.org>

Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> ---
>  drivers/usb/typec/bus.c | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c
> index 31c2a3130cad..9f1bbd26ca47 100644
> --- a/drivers/usb/typec/bus.c
> +++ b/drivers/usb/typec/bus.c
> @@ -27,6 +27,13 @@ typec_altmode_set_mux(struct altmode *alt, unsigned long conf, void *data)
>  	return typec_mux_set(alt->mux, &state);
>  }
>  
> +/* Wrapper to set various Type-C port switches together. */
> +static inline int
> +typec_altmode_set_switches(struct altmode *alt, unsigned long conf, void *data)
> +{
> +	return typec_altmode_set_mux(alt, conf, data);
> +}
> +
>  static int typec_altmode_set_state(struct typec_altmode *adev,
>  				   unsigned long conf, void *data)
>  {
> @@ -35,7 +42,7 @@ static int typec_altmode_set_state(struct typec_altmode *adev,
>  
>  	port_altmode = is_port ? to_altmode(adev) : to_altmode(adev)->partner;
>  
> -	return typec_altmode_set_mux(port_altmode, conf, data);
> +	return typec_altmode_set_switches(port_altmode, conf, data);
>  }
>  
>  /* -------------------------------------------------------------------------- */
> @@ -73,7 +80,7 @@ int typec_altmode_notify(struct typec_altmode *adev,
>  	is_port = is_typec_port(adev->dev.parent);
>  	partner = altmode->partner;
>  
> -	ret = typec_altmode_set_mux(is_port ? altmode : partner, conf, data);
> +	ret = typec_altmode_set_switches(is_port ? altmode : partner, conf, data);
>  	if (ret)
>  		return ret;
>  
> -- 
> 2.39.0.314.g84b9a713c41-goog

-- 
heikki