linux-kernel - Re: [RFC PATCH 1/5] driver core: Add fwnode member to struct device

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Message-ID: <a00ff7d0-4cac-2454-7c12-7844aecb68f1@infradead.org>
Date:   Wed, 24 Oct 2018 08:33:53 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
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 1/5] driver core: Add fwnode member to struct
 device_connection

On 10/24/18 8:05 AM, Heikki Krogerus wrote:
> This will prepare the device connection API for connections
> described in firmware.
> 
> Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> ---
>  include/linux/device.h | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/include/linux/device.h b/include/linux/device.h
> index 90224e75ade4..a964a0d614fa 100644
> --- a/include/linux/device.h
> +++ b/include/linux/device.h
> @@ -753,11 +753,17 @@ struct device_dma_parameters {
>  
>  /**
>   * struct device_connection - Device Connection Descriptor
> + * @fwnode: The device node of the connected device
>   * @endpoint: The names of the two devices connected together
>   * @id: Unique identifier for the connection
>   * @list: List head, private, for internal use only
> + *
> + * NOTE: @fwnode is not used together with @endpoint. @fwnode is used when
> + * platform firmware defines the connection. When the connection is registeded

for your next version:)                                                registered

> + * with device_connection_add() @endpoint is used instead.
>   */
>  struct device_connection {
> +	struct fwnode_handle	*fwnode;
>  	const char		*endpoint[2];
>  	const char		*id;
>  	struct list_head	list;
> 

cheers.
-- 
~Randy