linux-kernel - Re: [PATCH v5 7/7] interconnect: mediatek: Add MediaTek MT8183/8195 EMI Interconnect driver

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Message-ID: <52335ded-43e7-4694-80bf-6ceee7d918d8@kernel.org>
Date: Fri, 3 May 2024 14:53:03 +0300
From: Georgi Djakov <djakov@...nel.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: robh@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 matthias.bgg@...il.com, lgirdwood@...il.com, broonie@...nel.org,
 keescook@...omium.org, gustavoars@...nel.org, henryc.chen@...iatek.com,
 linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, kernel@...labora.com,
 wenst@...omium.org, amergnat@...libre.com
Subject: Re: [PATCH v5 7/7] interconnect: mediatek: Add MediaTek MT8183/8195
 EMI Interconnect driver

Hi Angelo,

On 24.04.24 12:54, AngeloGioacchino Del Regno wrote:
> Add an interconnect driver for the External Memory Interface (EMI),
> voting for bus bandwidth over the Dynamic Voltage and Frequency Scaling
> Resource Collector (DVFSRC).
> 
>               ICC provider         ICC Nodes
>                                ----          ----
>               ---------       |CPU |   |--- |VPU |
>      -----   |         |-----  ----    |     ----
>     |DRAM |--|DRAM     |       ----    |     ----
>     |     |--|scheduler|----- |GPU |   |--- |DISP|
>     |     |--|(EMI)    |       ----    |     ----
>     |     |--|         |       -----   |     ----
>      -----   |         |----- |MMSYS|--|--- |VDEC|
>               ---------        -----   |     ----
>                 /|\                    |     ----
>                  |change DRAM freq     |--- |VENC|
>               ----------               |     ----
>              |  DVFSR   |              |
>              |          |              |     ----
>               ----------               |--- |IMG |
>                                        |     ----
>                                        |     ----
>                                        |--- |CAM |
>                                              ----
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

Thank you for working on this! It looks good to me.
Do we have a plan how to merge all this?

Thanks,
Georgi

> ---
>   drivers/interconnect/Kconfig            |   1 +
>   drivers/interconnect/Makefile           |   1 +
>   drivers/interconnect/mediatek/Kconfig   |  29 ++
>   drivers/interconnect/mediatek/Makefile  |   5 +
>   drivers/interconnect/mediatek/icc-emi.c | 153 +++++++++++
>   drivers/interconnect/mediatek/icc-emi.h |  40 +++
>   drivers/interconnect/mediatek/mt8183.c  | 143 ++++++++++
>   drivers/interconnect/mediatek/mt8195.c  | 339 ++++++++++++++++++++++++
>   8 files changed, 711 insertions(+)
>   create mode 100644 drivers/interconnect/mediatek/Kconfig
>   create mode 100644 drivers/interconnect/mediatek/Makefile
>   create mode 100644 drivers/interconnect/mediatek/icc-emi.c
>   create mode 100644 drivers/interconnect/mediatek/icc-emi.h
>   create mode 100644 drivers/interconnect/mediatek/mt8183.c
>   create mode 100644 drivers/interconnect/mediatek/mt8195.c