Re: [PATCH] interconnect: qcom: sdm660: Enable keep_alive and sync_state

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 10/9/26 10:45 PM, Fabricio Akio via B4 Relay wrote:
> From: Fabricio Akio <fabricioakio@gmail.com>
> 
> The interconnect core starts every node at INT_MAX and only lowers it in
> icc_sync_state(), which this driver never hooks up. Every bus therefore
> stays at its maximum rate, in the active and the sleep set.
> 
> Hook up icc_sync_state(). Releasing those votes also drops buses that no
> driver votes for, so enable keep_alive on the providers with a bus clock,
> as QCM2290 does: it keeps a minimum active-set vote and leaves the sleep
> set free.
> 
> On a Motorola Moto X4 (SDM630) with the screen off, this takes the
> battery current from 117 mA to 68 mA.
> 
> Fixes: f80a1d414328 ("interconnect: qcom: Add SDM660 interconnect provider driver")
> Signed-off-by: Fabricio Akio <fabricioakio@gmail.com>
> ---

None should be necessary on 660, except on bus_0 / RPM_CNOC_PERIPH_CLK,
which is not associated with any interconnect master on this platform
(so it will actually get disabled through clock cleanup!)

Konrad