Re: [PATCH 10/13] arm64: dts: freescale: imx93-phyboard-segin: Add CAN support

Primoz Fiser
2025-04-14T08:02:45Z

Hi Marc and Frank,

On 12. 04. 25 15:41, Marc Kleine-Budde wrote:
> On 11.04.2025 10:30:18, Frank Li wrote:
>> On Fri, Apr 11, 2025 at 10:08:21AM +0200, Primoz Fiser wrote:
>>> Hi Frank,
>>>
>>> On 10. 04. 25 17:23, Frank Li wrote:
>>>> On Thu, Apr 10, 2025 at 11:02:48AM +0200, Primoz Fiser wrote:
>>>>> Add support for CAN networking on phyBOARD-Segin-i.MX93 via the flexcan1
>>>>> interface. The CAN1_EN regulator enables the SN65HVD234 CAN transceiver
>>>>> chip.
>>>>
>>>> Can you use drivers/phy/phy-can-transceiver.c to enable CAN phy instead
>>>> of use hacked regulator-flexcan1-en.
>>>
>>> Sorry can't do.
>>>
>>> This doesn't align with other i.MX PHYTEC products using flexcan such as
>>> imx8mp-phyboard-pollux-rdk.dts.
>>>
>>> Even the i.MX93 EVK uses the same mechanism.
>>
>> I think previous method is NOT good enough. Suggest involve CAN and PHY
>> maintainer to discuss these.
>
> Since d80bfde3c57a ("can: flexcan: add transceiver capabilities"), which
> git mainline with v6.15-rc1 there is proper PHY support in the flexcan
> driver. So from my point of view, there's no need to stick to regulator
> hack.

This arrived at the perfect moment. Just in time :)

I will switch to this mechanism in v2.

Thank you both for your input.

BR,
Primoz

>
> regards,
> Marc
>

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Primoz Fiser
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