linux-kernel - RE: [PATCH 4/4] phylib: Add of_phy

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Message-ID: <ED492CCEAF882048BC2237DE806547C9151173AB@039-SN2MPN1-013.039d.mgd.msft.net>
Date:	Tue, 12 Nov 2013 12:32:09 +0000
From:	Shaohui Xie <Shaohui.Xie@...escale.com>
To:	"shh.xie@...il.com" <shh.xie@...il.com>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Madalin-Cristian Bucur <madalin.bucur@...escale.com>,
	Shruti Kanetkar <Shruti@...escale.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"jg1.han@...sung.com" <jg1.han@...sung.com>,
	"f.fainelli@...il.com" <f.fainelli@...il.com>,
	"peppe.cavallaro@...com" <peppe.cavallaro@...com>,
	"michal.simek@...inx.com" <michal.simek@...inx.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH 4/4] phylib: Add of_phy_attach

Added more people and list.

Best Regards, 
Shaohui Xie


> -----Original Message-----
> From: shh.xie@...il.com [mailto:shh.xie@...il.com]
> Sent: Monday, November 11, 2013 7:08 PM
> To: linuxppc-dev@...ts.ozlabs.org; linux-kernel@...r.kernel.org
> Cc: Bucur Madalin-Cristian-B32716; Kanetkar Shruti-B44454; Xie Shaohui-B21989
> Subject: [PATCH 4/4] phylib: Add of_phy_attach
> 
> From: Andy Fleming
> 
> 10G PHYs don't currently support running the state machine, which is implicitly
> setup via of_phy_connect(). Therefore, it is necessary to implement an OF
> version of phy_attach(), which does everything except start the state machine.
> 
> Signed-off-by: Andy Fleming
> Signed-off-by: Shaohui Xie <Shaohui.Xie@...escale.com>
> ---
>  drivers/of/of_mdio.c    | 22 ++++++++++++++++++++--
>  include/linux/of_mdio.h |  8 ++++++++
>  2 files changed, 28 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index d5a57a9..a748274
> 100644
> --- a/drivers/of/of_mdio.c
> +++ b/drivers/of/of_mdio.c
> @@ -221,8 +221,7 @@ EXPORT_SYMBOL(of_phy_connect);
>   * not call this function from new drivers.
>   */
>  struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
> -					     void (*hndlr)(struct net_device *),
> -					     phy_interface_t iface)
> +		void (*hndlr)(struct net_device *), phy_interface_t iface)
>  {
>  	struct device_node *net_np;
>  	char bus_id[MII_BUS_ID_SIZE + 3];
> @@ -247,3 +246,22 @@ struct phy_device *of_phy_connect_fixed_link(struct
> net_device *dev,
>  	return IS_ERR(phy) ? NULL : phy;
>  }
>  EXPORT_SYMBOL(of_phy_connect_fixed_link);
> +
> +/**
> + * of_phy_attach - Attach to a PHY without starting the state machine
> + * @dev: pointer to net_device claiming the phy
> + * @phy_np: Node pointer for the PHY
> + * @flags: flags to pass to the PHY
> + * @iface: PHY data interface type
> + */
> +struct phy_device *of_phy_attach(struct net_device *dev,
> +		struct device_node *phy_np, u32 flags, phy_interface_t iface) {
> +	struct phy_device *phy = of_phy_find_device(phy_np);
> +
> +	if (!phy)
> +		return NULL;
> +
> +	return phy_attach_direct(dev, phy, flags, iface) ? NULL : phy; }
> +EXPORT_SYMBOL(of_phy_attach);
> diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h index
> 8163107..dcda44d 100644
> --- a/include/linux/of_mdio.h
> +++ b/include/linux/of_mdio.h
> @@ -19,6 +19,8 @@ extern struct phy_device *of_phy_connect(struct net_device
> *dev,
>  					 struct device_node *phy_np,
>  					 void (*hndlr)(struct net_device *),
>  					 u32 flags, phy_interface_t iface);
> +extern struct phy_device *of_phy_attach(struct net_device *dev,
> +		struct device_node *phy_np, u32 flags, phy_interface_t iface);
>  extern struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
>  					 void (*hndlr)(struct net_device *),
>  					 phy_interface_t iface);
> @@ -44,6 +46,12 @@ static inline struct phy_device *of_phy_connect(struct
> net_device *dev,
>  	return NULL;
>  }
> 
> +static inline struct phy_device *of_phy_attach(struct net_device *dev,
> +		struct device_node *phy_np, u32 flags, phy_interface_t iface) {
> +	return NULL;
> +}
> +
>  static inline struct phy_device *of_phy_connect_fixed_link(struct net_device
> *dev,
>  							   void (*hndlr)(struct net_device
> *),
>  							   phy_interface_t iface)
> --
> 1.8.4.1


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