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Date: Wed, 6 Jan 2021 10:44:52 +0000
From: HenryC Chen (陳建豪)
<HenryC.Chen@...iatek.com>
To: Georgi Djakov <georgi.djakov@...aro.org>
CC: Rob Herring <robh+dt@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Stephen Boyd <swboyd@...omium.org>,
Ryan Case <ryandcase@...omium.org>,
Mark Brown <broonie@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Nicolas Boichat <drinkcat@...gle.com>,
Fan Chen (陳凡) <fan.chen@...iatek.com>,
JamesJJ Liao (廖建智)
<jamesjj.liao@...iatek.com>,
Arvin Wang (王志銘)
<Arvin.Wang@...iatek.com>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-mediatek@...ts.infradead.org"
<linux-mediatek@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>
Subject: RE: [PATCH V6 08/13] interconnect: mediatek: Add interconnect
provider driver
> -----Original Message-----
> From: Georgi Djakov [mailto:georgi.djakov@...aro.org]
> Sent: Wednesday, January 06, 2021 4:14 PM
> To: HenryC Chen (陳建豪)
> Cc: Rob Herring; Matthias Brugger; Stephen Boyd; Ryan Case; Mark Brown; Mark
> Rutland; Nicolas Boichat; Fan Chen (陳凡); JamesJJ Liao (廖建智); Arvin Wang
> (王志銘); devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> linux-mediatek@...ts.infradead.org; linux-kernel@...r.kernel.org; linux-
> pm@...r.kernel.org
> Subject: Re: [PATCH V6 08/13] interconnect: mediatek: Add interconnect
> provider driver
>
> On 1/6/21 09:30, Henry Chen wrote:
> > On Mon, 2021-01-04 at 20:36 +0200, Georgi Djakov wrote:
> >> On 12/24/20 08:08, Henry Chen wrote:
> >>> Introduce Mediatek MT6873/MT8183/MT8192 specific provider driver
> >>> using the interconnect framework.
> >>>
> >>> ICC provider ICC Nodes
> >>> ---- ----
> >>> --------- |CPU | |--- |VPU |
> >>> ----- | |----- ---- | ----
> >>> |DRAM |--|DRAM | ---- | ----
> >>> | |--|scheduler|----- |GPU | |--- |DISP|
> >>> | |--|(EMI) | ---- | ----
> >>> | |--| | ----- | ----
> >>> ----- | |----- |MMSYS|--|--- |VDEC|
> >>> --------- ----- | ----
> >>> /|\ | ----
> >>> |change DRAM freq |--- |VENC|
> >>> ---------- | ----
> >>> | DVFSR | |
> >>> | | | ----
> >>> ---------- |--- |IMG |
> >>> | ----
> >>> | ----
> >>> |--- |CAM |
> >>> ----
> >>>
> >>> Signed-off-by: Henry Chen <henryc.chen@...iatek.com>
> >>> ---
> >>> drivers/interconnect/Kconfig | 1 +
> >>> drivers/interconnect/Makefile | 1 +
> >>> drivers/interconnect/mediatek/Kconfig | 13 ++
> >>> drivers/interconnect/mediatek/Makefile | 3 +
> >>> drivers/interconnect/mediatek/mtk-emi.c | 330
> ++++++++++++++++++++++++++++++++
> >>> 5 files changed, 348 insertions(+)
> >>> create mode 100644 drivers/interconnect/mediatek/Kconfig
> >>> create mode 100644 drivers/interconnect/mediatek/Makefile
> >>> create mode 100644 drivers/interconnect/mediatek/mtk-emi.c
> >>>
> >>> diff --git a/drivers/interconnect/Kconfig
> >>> b/drivers/interconnect/Kconfig index 5b7204e..e939f5a 100644
> >>> --- a/drivers/interconnect/Kconfig
> >>> +++ b/drivers/interconnect/Kconfig
> >>> @@ -13,5 +13,6 @@ if INTERCONNECT
> >>>
> >>> source "drivers/interconnect/imx/Kconfig"
> >>> source "drivers/interconnect/qcom/Kconfig"
> >>> +source "drivers/interconnect/mediatek/Kconfig"
> >>
> >> Sort alphabetically please.
> > Ok
> >>
> >>>
> >>> endif
> >>> diff --git a/drivers/interconnect/Makefile
> >>> b/drivers/interconnect/Makefile index d203520..0643a24 100644
> >>> --- a/drivers/interconnect/Makefile
> >>> +++ b/drivers/interconnect/Makefile
> >>> @@ -6,3 +6,4 @@ icc-core-objs := core.o bulk.o
> >>> obj-$(CONFIG_INTERCONNECT) += icc-core.o
> >>> obj-$(CONFIG_INTERCONNECT_IMX) += imx/
> >>> obj-$(CONFIG_INTERCONNECT_QCOM) += qcom/
> >>> +obj-$(CONFIG_INTERCONNECT_MTK) += mediatek/
> >>
> >> Ditto.
> > Ok
> >>
> >>> diff --git a/drivers/interconnect/mediatek/Kconfig
> >>> b/drivers/interconnect/mediatek/Kconfig
> >>> new file mode 100644
> >>> index 0000000..972d3bb
> >>> --- /dev/null
> >>> +++ b/drivers/interconnect/mediatek/Kconfig
> >>> @@ -0,0 +1,13 @@
> >>> +config INTERCONNECT_MTK
> >>> + bool "Mediatek Network-on-Chip interconnect drivers"
> >>> + depends on ARCH_MEDIATEK
> >>> + help
> >>> + Support for Mediatek's Network-on-Chip interconnect hardware.
> >>> +
> >>> +config INTERCONNECT_MTK_EMI
> >>> + tristate "Mediatek EMI interconnect driver"
> >>> + depends on INTERCONNECT_MTK
> >>> + depends on (MTK_DVFSRC && OF)
> >>
> >> Would it be possible to enable COMPILE_TEST?
> > Do you means change to "depends on (MTK_DVFSRC && OF) || COMPILE_TEST" ?
>
> Yeah, there is a stub for mtk_dvfsrc_send_request(). Maybe we could even
> change it for INTERCONNECT_MTK to something like:
> depends on ARCH_MEDIATEK || COMPILE_TEST Will this work?
Hi Georgi,
So..only change to as following?
config INTERCONNECT_MTK
bool "Mediatek Network-on-Chip interconnect drivers"
depends on ARCH_MEDIATEK || COMPILE_TEST
help
Support for Mediatek's Network-on-Chip interconnect hardware.
>
> Thanks,
> Georgi
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