linux-kernel - Re: [PATCH v9 4/4] i2c: Add driver for the RTL9300 I2C controller

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Message-ID: <d7ceaf59-8e39-4c76-9b9f-88746a22176d@alliedtelesis.co.nz>
Date: Thu, 7 Nov 2024 08:47:42 +1300
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: Andi Shyti <andi.shyti@...nel.org>
Cc: lee@...nel.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 tsbogend@...ha.franken.de, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
 linux-i2c@...r.kernel.org
Subject: Re: [PATCH v9 4/4] i2c: Add driver for the RTL9300 I2C controller


On 6/11/24 22:57, Andi Shyti wrote:
> Hi Chris,
>
> On Wed, Nov 06, 2024 at 01:18:35PM +1300, Chris Packham wrote:
>> Add support for the I2C controller on the RTL9300 SoC. There are two I2C
>> controllers in the RTL9300 that are part of the Ethernet switch register
>> block. Each of these controllers owns a SCL pin (GPIO8 for the fiorst
>> I2C controller, GPIO17 for the second). There are 8 possible SDA pins
>> (GPIO9-16) that can be assigned to either I2C controller. This
>> relationship is represented in the device tree with a child node for
>> each SDA line in use.
>>
>> This is based on the openwrt implementation[1] but has been
>> significantly modified
>>
>> [1] - https://scanmail.trustwave.com/?c=20988&d=pL2r5zHAPsW8d92uECdR2T8Eh4fYX_ZwrCyklfTCzQ&u=https%3a%2f%2fgit%2eopenwrt%2eorg%2f%3fp%3dopenwrt%2fopenwrt%2egit%3ba%3dblob%3bf%3dtarget%2flinux%2frealtek%2ffiles-5%2e15%2fdrivers%2fi2c%2fbusses%2fi2c-rtl9300%2ec
>>
>> Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
>> Reviewed-by: Andi Shyti <andi.shyti@...nel.org>
> Thanks for following up with v9. I think nothing prevents us from
> already merging this 4/4 patch, right?
>
 From my end yes it's all good to go. Lee's just applied the mfd binding.

The only thing outstanding are the mips dts changes. I'll wait for a bit 
and chase those up. Hopefully they can make it in the 6.13 window but 
it's not the end of the world if they don't.