linux-kernel - Re: [PATCH 2/2] [POWERPC] mmio ide support for mpc8349-itx target

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Message-Id: <3F401C47-2A18-4692-AA71-D0D5FE24D94F@kernel.crashing.org>
Date:	Sun, 8 Jul 2007 15:31:43 +0200
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	Sergei Shtylyov <sshtylyov@...mvista.com>
Cc:	Vitaly Bordug <vitb@...nel.crashing.org>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org
Subject: Re: [PATCH 2/2] [POWERPC] mmio ide support for mpc8349-itx target

>> +		ide@...00000 {
>> + 			#interrupt-cells = <2>;
>
>     Hm, why define that prop for a node with no children?
>
>> + 			interrupts = <17 8>;
>> + 			interrupt-map = <0 0 0 1 700 17 8>;
>> + 			interrupt-map-mask = <0>;

This map-mask makes no sense either.  And neither does
the map itself.

>> +
>> + 			#size-cells = <1>;
>> + 			#address-cells = <1>;
>
>     Same question here.

The ide node might want children, namely disks or optical
drives or such, but #size-cells should be 0.

>> + 			reg = <10000000 10 10000200 10>;
>> +
>> + 			device_type = "ide";
>
>     I think that already adopted device type is "ata", not "ide".

"ata" is not a hardware thing, "ide" is.  Or so I'm told.
I'd leave out the "device_type" completely though, certainly
if you can't point me at a published device binding :-)


Segher
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