From mboxrd@z Thu Jan  1 00:00:00 1970
From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth)
Date: Fri, 21 Jun 2013 16:15:29 +0200
Subject: [PATCH v3 4/4] ARM: dts: mvebu: Introduce a new compatible string
 for mv64xxx-i2c
In-Reply-To: <20130621140707.GO31667@titan.lakedaemon.net>
References: <1371821529-13791-1-git-send-email-gregory.clement@free-electrons.com>
 <1371821529-13791-5-git-send-email-gregory.clement@free-electrons.com>
 <20130621140707.GO31667@titan.lakedaemon.net>
Message-ID: <51C46001.30500@gmail.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 06/21/13 16:07, Jason Cooper wrote:
> On Fri, Jun 21, 2013 at 03:32:09PM +0200, Gregory CLEMENT wrote:
>> The mv64xxx-i2c embedded in the Armada XP have a new feature to
>> offload i2c transaction. This new version of the IP come also with
>> some errata. This lead to the introduction to a another compatible
>> string.
>>
>> This commit split the i2c information into armada-370.dtsi and
>> armada-xp.dtsi. Most of the data remains the same and stay in the
>> common file Armada-370-xp.dtsi. With this new feature the size of the
>> registers are bigger for Armada XP and the new compatible string is
>> used.
>>
>> The Device Tree binding documentation is updated accordingly.
>>
>> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
>> ---
>>   Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt | 13 ++++++++++++-
>>   arch/arm/boot/dts/armada-370-xp.dtsi                  |  2 --
>>   arch/arm/boot/dts/armada-370.dtsi                     |  8 ++++++++
>>   arch/arm/boot/dts/armada-xp.dtsi                      | 10 ++++++++++
>>   4 files changed, 30 insertions(+), 3 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
>> index a1ee681..ce7af6a 100644
>> --- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
>> +++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
>> @@ -4,7 +4,8 @@
>>   Required properties :
>>
>>    - reg             : Offset and length of the register set for the device
>> - - compatible      : Should be "marvell,mv64xxx-i2c"
>> + - compatible      : Should be "marvell,mv64xxx-i2c" and "marvell,mv7230-i2c"
>> +for controller which support the I2C Transaction Generator

Jason, Gregory,

Also, s/mv7230/mv78230/

from a quick check of the patch set (which you forgot to send to LKML)
I am wondering why you didn't update the of matches struct with the new
compatible for "marvell,mv78230-i2c"? This will save you from still
having "marvell,mv64xxx-i2c" as additional compatible to match device
and driver. With that the above should also be s/and/or/.

>>    - interrupts      : The interrupt number
>>
>>   Optional properties :
>> @@ -20,3 +21,13 @@ Examples:
>>   		interrupts = <29>;
>>   		clock-frequency = <100000>;
>>   	};
>> +
>> +For a controller which support the I2C Transaction Generator:
>> +
>> +	i2c at 11000 {
>> +		compatible = "marvell,mv64xxx-i2c", "marvell,mv78230-i2c";
>> +		reg = <0x11000 0x100>;
>> +		compatible = "marvell,mv64xxx-i2c";
>
> extra compatible line.  If there's nothing else, I'll fix this up when I
> pull it in.