Re: [PATCH v2 1/2] interconnect: qcom: Add SDM660 interconnect provider driver

From: Rob Herring
Date: Tue Oct 06 2020 - 14:19:41 EST


On Mon, Sep 28, 2020 at 09:58:52PM +0200, kholk11@xxxxxxxxx wrote:
> From: AngeloGioacchino Del Regno <kholk11@xxxxxxxxx>
>
> Introduce a driver for the Qualcomm interconnect busses found in
> the SDM630/SDM636/SDM660 SoCs.
> The topology consists of several NoCs that are controlled by a
> remote processor that collects the aggregated bandwidth for each
> master-slave pairs.
>
> On a note, these chips are managing the "bus QoS" in a "hybrid"
> fashion: some of the paths in the topology are managed through
> (and by, of course) the RPM uC, while some others are "AP Owned",
> meaning that the AP shall do direct writes to the appropriate
> QoS registers for the specific paths and ports, instead of sending
> an indication to the RPM and leaving the job to that one.
>
> Signed-off-by: AngeloGioacchino Del Regno <kholk11@xxxxxxxxx>
> ---
> drivers/interconnect/qcom/Kconfig | 9 +
> drivers/interconnect/qcom/Makefile | 2 +
> drivers/interconnect/qcom/sdm660.c | 919 ++++++++++++++++++
> .../dt-bindings/interconnect/qcom,sdm660.h | 116 +++

This goes with the binding.

> 4 files changed, 1046 insertions(+)
> create mode 100644 drivers/interconnect/qcom/sdm660.c
> create mode 100644 include/dt-bindings/interconnect/qcom,sdm660.h