linux-kernel - Re: [RFC PATCH 4/5] usb: typec: Find the ports by also matching against the device node

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Message-ID: <4a091620-94fa-5831-6c8c-1690efa0be66@cogentembedded.com>
Date:   Wed, 24 Oct 2018 20:07:09 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     Guenter Roeck <linux@...ck-us.net>,
        Hans de Goede <hdegoede@...hat.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 4/5] usb: typec: Find the ports by also matching
 against the device node

Hello!

On 10/24/2018 06:05 PM, Heikki Krogerus wrote:

> When the connections are defined in firmware, struct
> device_connection will have the fwnode member pointing to
> the device node (struct fwnode_handle) of the requested
> device, and the endpoint will not be used at all in that
> case.
> 
> Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> ---
>  drivers/usb/typec/class.c | 19 ++++++++++++++++---
>  1 file changed, 16 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 5db0593ca0bd..fe6f3a932a88 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -204,15 +204,28 @@ static void typec_altmode_put_partner(struct altmode *altmode)
>  	put_device(&adev->dev);
>  }
>  
> -static int __typec_port_match(struct device *dev, const void *name)
> +static int typec_port_fwnode_match(struct device *dev, const void *fwnode)
> +{
> +	return dev_name(fwnode) == fwnode;

   dev_name(dev), maybe?

[...]

MBR, Sergei