linux-kernel - Re: [PATCH] PHY fixed driver: rework release path and updatephy

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Message-ID: <1181750769.30670.304.camel@gentoo-jocke.transmode.se>
Date:	Wed, 13 Jun 2007 18:06:10 +0200
From:	"Joakim Tjernlund" <joakim.tjernlund@...nsmode.se>
To:	"Vitaly Bordug" <vitb@...nel.crashing.org>
Cc:	"Jeff Garzik" <jeff@...zik.org>, <linuxppc-dev@...abs.org>,
	<linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
Subject: Re: [PATCH] PHY fixed driver: rework release path and updatephy_id notation

On Sat, 2007-06-09 at 20:21 +0400, Vitaly Bordug wrote:
> device_bind_driver() error code returning has been fixed. 
> release() function has been written, so that to free resources
> in correct way; the release path is now clean.
> 
> Before the rework, it used to cause
>  Device 'fixed@100:1' does not have a release() function, it is broken
>  and must be fixed.
>  BUG: at drivers/base/core.c:104 device_release()
>  
>  Call Trace:  
>   [<ffffffff802ec380>] kobject_cleanup+0x53/0x7e
>   [<ffffffff802ec3ab>] kobject_release+0x0/0x9
>   [<ffffffff802ecf3f>] kref_put+0x74/0x81
>   [<ffffffff8035493b>] fixed_mdio_register_device+0x230/0x265
>   [<ffffffff80564d31>] fixed_init+0x1f/0x35
>   [<ffffffff802071a4>] init+0x147/0x2fb
>   [<ffffffff80223b6e>] schedule_tail+0x36/0x92
>   [<ffffffff8020a678>] child_rip+0xa/0x12
>   [<ffffffff80311714>] acpi_ds_init_one_object+0x0/0x83
>   [<ffffffff8020705d>] init+0x0/0x2fb
>   [<ffffffff8020a66e>] child_rip+0x0/0x12  
> 
> 
> Also changed the notation of the fixed phy definition on
> mdio bus to the form of <speed>+<duplex> to make it able to be used by
> gianfar and ucc_geth that define phy_id strictly as "%d:%d"
> 
> Signed-off-by: Vitaly Bordug <vitb@...nel.crashing.org>

Hi Vitaly

I am about to test this but I am having trouble figuring out how to
make ucc_geth find this PHY. Need some hints/template what to write
in the dts or board init code.

Also, I need several fixed PHYs, maybe you should export
fixed_mdio_register_device() ?

 Jocke


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