[PATCH v3 1/4] rockchip: gru: Set up SoC IO domain registers

Alper Nebi Yasak alpernebiyasak at gmail.com
Mon Mar 14 22:29:58 CET 2022

On 11/03/2022 22:49, Jagan Teki wrote:
> On Fri, Dec 24, 2021 at 7:14 PM Alper Nebi Yasak
> <alpernebiyasak at gmail.com> wrote:
>> The RK3399 SoC needs to know the voltage value provided by some
>> regulators, which is done by setting relevant register bits. Configure
>> these the way other RK3399 boards do, but with the same values as are
>> set in the equivalent code in coreboot.
>> Signed-off-by: Alper Nebi Yasak <alpernebiyasak at gmail.com>
>> Reviewed-by: Kever Yang <kever.yang at rock-chips.com>
>> ---
>> There is a driver for this on Rockchip's repo, I managed to forward-port
>> it and get it working. If that's more desirable than doing it per-board
>> like this I can send that upstream (but I'd prefer to do it after this).
>> [...]
> This looks like a board hack code for me, which is difficult to
> maintain in the long run. Better go with UCLASS_POWER_DOMAIN, I
> believe it would be a straightforward implementation.

Yeah, it's a board hack that several other boards also do. I've got a
driver working for this as mentioned above, but that adds a new
UCLASS_IO_DOMAIN instead of using UCLASS_POWER_DOMAIN like you suggest.

I had been tired of carrying these patches, so wanted to get any working
version merged before attempting to upstream the driver and remove the
hacky parts from all boards at once. I'm not sure how long would that
take, and I didn't want this to be blocked by that.

I've got to work on binman things for a while, so I might not be able to
get to that and your other suggestions soon enough.

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