linux-kernel - Re: [PATCH 11/22] pinctrl: qcom: sa8775p: Add support for SA8255p SoC

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Message-ID: <f227c799-cf9a-481a-b359-21828d6e8bca@kernel.org>
Date: Fri, 30 Aug 2024 11:52:04 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Nikunj Kela <quic_nkela@...cinc.com>
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Subject: Re: [PATCH 11/22] pinctrl: qcom: sa8775p: Add support for SA8255p SoC

On 29/08/2024 16:17, Nikunj Kela wrote:
> 
> On 8/29/2024 12:29 AM, Krzysztof Kozlowski wrote:
>> On Wed, Aug 28, 2024 at 01:37:10PM -0700, Nikunj Kela wrote:
>>> SA8255p platform uses the same TLMM block as used in SA8775p,
>>> though the pins are split between Firmware VM and Linux VM.
>>> let's add SA8255p specific compatible.
>> The change suggests devices are fully compatible, but above description
>> does not.
>>
>> This looks conflicting.
>>
>> Best regards,
>> Krzysztof
> 
> Hi Krzysztof,
> 
> Thanks for reviewing patches. TLMM HW block is exactly same as used in
> SA8775p however ownership of pins can be split between firmware VM and
> Linux VM. It is upto devices to decide what pins they want to use in
> what VM. I will extend the subject with same description as used in DT
> binding.

So there is no difference? Then devices should be made compatible with
fallback.

Best regards,
Krzysztof