[PATCH v5] arm64: dts: rockchip: rock-3b: Model PI6C20100 as gated-fixed-clock

Jonas Karlman jonas at kwiboo.xyz
Tue Mar 24 10:15:38 PDT 2026


Hi Heiko,

On 3/24/2026 6:04 PM, Heiko Stuebner wrote:
> 
> On Fri, 20 Mar 2026 10:44:41 +0100, MidG971 wrote:
>> The Radxa ROCK 3B uses a PI6C20100 PCIe reference clock buffer to
>> provide a 100MHz reference clock to the PCIe 3.0 PHY and controllers.
>> This chip is currently modeled only as a fixed regulator
>> (vcc3v3_pi6c_03), with no clock output representation.
>>
>> The PI6C20100 is a clock generator, not a power supply. Model it
>> properly as a gated-fixed-clock, following the pattern established
>> for the Rock 5 ITX and other boards with similar PCIe clock buffer
>> chips.
>>
>> [...]
> 
> Applied, thanks!

My comments from v3 [1] was not addressed in v4 och v5. E.g.
regulator-always-on/boot-on not being removed and redundant comments.

[1] https://lore.kernel.org/all/fec0f25d-733a-4b6c-aef1-2ac51bd15798@kwiboo.se/

Regards,
Jonas

> 
> [1/1] arm64: dts: rockchip: rock-3b: Model PI6C20100 as gated-fixed-clock
>       commit: b61f3c69c87b5f061194f413d810723698534b02
> 
> As I somehow expected, that AI messed up ;-) .
> 
> In the 2nd part of the patch the reported number of lines
> in the header (the 15 there) does not match the number of lines
> in the diff itself (14). I've fixed that up to not have another
> round.
> 
> Best regards,




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