linux-kernel - Re: [PATCH RESEND] media: camss: csiphy: Make CSIPHY status macro cross-platform

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Message-ID: <65414d04-3db9-4dc2-bf1c-1e260713b818@linaro.org>
Date: Thu, 4 Dec 2025 00:19:55 +0000
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: Andi Shyti <andi.shyti@...nel.org>,
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Vijay Kumar Tumati <vijay.tumati@....qualcomm.com>,
 Hangxiang Ma <hangxiang.ma@....qualcomm.com>,
 Loic Poulain <loic.poulain@....qualcomm.com>, Robert Foss
 <rfoss@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Todor Tomov <todor.too@...il.com>,
 Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, linux-i2c@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [PATCH RESEND] media: camss: csiphy: Make CSIPHY status macro
 cross-platform

On 03/12/2025 16:57, Andi Shyti wrote:
> Hi,
> 
> On Mon, Dec 01, 2025 at 06:18:51PM +0100, Konrad Dybcio wrote:
>> On 12/1/25 3:48 PM, Vijay Kumar Tumati wrote:
>>>
>>> On 12/1/2025 4:20 AM, Konrad Dybcio wrote:
>>>> On 12/1/25 7:25 AM, Hangxiang Ma wrote:
>>>>> The current value of '0xb0' that represents the offset to the status
>>>>> registers within the common registers of the CSIPHY has been changed on
>>>>> the newer SOCs and it requires generalizing the macro using a new
>>>>> variable 'common_status_offset'. This variable is initialized in the
>>>>> csiphy_init() function.
>>>> "offset" + "common_status_offset" is confusing
>>>>
>>>> Let's maybe add some platform data where we store the actual offset of
>>>> the registers in question and pass a csiphy ptr as an argument
>>>>
>>>> Konrad
>>> Hi Konrad, may be I didn't follow correctly. This is consistent with the way we maintain the other SOC specific reg offsets / data in the CSIPHY driver, in csiphy_device_regs, isn't it? I seem to think it's clearer this way for the reader to see all the offsets at one place. No? Thanks.
>>
>> I thought this driver was a little more complex.. anyway, big
>> changes that will make this prettier are coming so this works too in
>> the meantime
> 
> After this short discussion, in order to get it in, can someone
> from Qualcomm ack/r-b it?
> 
> Thanks,
> Andi

I'll pick it up per nomal.

---
bod