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[182.195.34.30]) by epcas5p2.samsung.com (KnoxPortal) with ESMTPA id 20250806082216epcas5p2976661d5f4c9a10835fe831e97cf7fd1~ZH9aWh2GV0281802818epcas5p2V; Wed, 6 Aug 2025 08:22:16 +0000 (GMT) Received: from INBRO001561 (unknown [107.122.12.6]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20250806082211epsmtip1d80097c73b45e759d745e4b959969147~ZH9V88NzW1683116831epsmtip1R; Wed, 6 Aug 2025 08:22:11 +0000 (GMT) From: "Pankaj Dubey" To: "'Krzysztof Kozlowski'" , "'SeonGu Kang'" , "'Jesper Nilsson'" , "'Michael Turquette'" , "'Stephen Boyd'" , "'Rob Herring'" , "'Krzysztof Kozlowski'" , "'Conor Dooley'" , "'Sylwester Nawrocki'" , "'Chanwoo Choi'" , "'Alim Akhtar'" , "'Linus Walleij'" , "'Tomasz Figa'" , "'Catalin Marinas'" , "'Will Deacon'" , "'Arnd Bergmann'" Cc: "'kenkim'" , "'Jongshin Park'" , "'GunWoo Kim'" , "'HaGyeong Kim'" , "'GyoungBo Min'" , "'SungMin Park'" , "'Shradha Todi'" , "'Ravi Patel'" , "'Inbaraj E'" , "'Swathi K S'" , "'Hrishikesh'" , "'Dongjin Yang'" , "'Sang Min Kim'" , , , , , , , , In-Reply-To: <99977f38-f055-46ed-8eb0-4b757da2bcdd@kernel.org> Subject: RE: [PATCH 00/16] Add support for the Axis ARTPEC-8 SoC Date: Wed, 6 Aug 2025 13:52:10 +0530 Message-ID: <000501dc06ab$37f09440$a7d1bcc0$@samsung.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQGJY/8wx4BImu0YLFPVfwpfqUmFNgKXZrJuAgeQag4A83Fv2QHBXkcOtL/uTdA= Content-Language: en-us X-CMS-MailID: 20250806082216epcas5p2976661d5f4c9a10835fe831e97cf7fd1 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P cpgsPolicy: CPGSC10-541,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20250721064006epcas5p4617b0450e69f72c94d2b3ae7b1d200e7 References: <20250710002047.1573841-1-ksk4725@coasia.com> <847e908b-1073-46ea-93f3-1f36cc93d8b8@kernel.org> <99977f38-f055-46ed-8eb0-4b757da2bcdd@kernel.org> > -----Original Message----- > From: Krzysztof Kozlowski > Sent: Monday, July 21, 2025 12:10 PM > To: SeonGu Kang ; Jesper Nilsson > ; Michael Turquette ; > Stephen Boyd ; Rob Herring ; > Krzysztof Kozlowski ; Conor Dooley > ; Sylwester Nawrocki ; > Chanwoo Choi ; Alim Akhtar > ; Linus Walleij ; > Tomasz Figa ; Catalin Marinas > ; Will Deacon ; Arnd Bergma= nn > > Cc: kenkim ; Jongshin Park ; > GunWoo Kim ; HaGyeong Kim > ; GyoungBo Min ; > SungMin Park ; Pankaj Dubey > ; Shradha Todi ; > Ravi Patel ; Inbaraj E ; > Swathi K S ; Hrishikesh > ; Dongjin Yang ; > Sang Min Kim ; linux-kernel=40vger.kernel.org; > linux-arm-kernel=40lists.infradead.org; linux-samsung-soc=40vger.kernel.o= rg; > linux-arm-kernel=40axis.com; linux-clk=40vger.kernel.org; > devicetree=40vger.kernel.org; linux-gpio=40vger.kernel.org; soc=40lists.l= inux.dev > Subject: Re: =5BPATCH 00/16=5D Add support for the Axis ARTPEC-8 SoC >=20 > On 21/07/2025 06:50, SeonGu Kang wrote: > > 2025-07-10 (=EB=AA=A9),=2009:07=20+0200,=20Krzysztof=20Kozlowski:=0D=0A= >=20>>=20On=2010/07/2025=2002:20,=20ksk4725=40coasia.com=20wrote:=0D=0A>=20= >>>=20From:=20SeonGu=20Kang=20=0D=0A>=20>>>=0D=0A>=20= >>>=20Add=20basic=20support=20for=20the=20Axis=20ARTPEC-8=20SoC.=0D=0A>=20>= >>=20This=20SoC=20contains=20four=20Cortex-A53=20CPUs=20and=20other=20sever= al=20IPs.=0D=0A>=20>>>=0D=0A>=20>>>=20Patches=201=20to=2010=20provide=20the= =20support=20for=20the=20clock=20controller,=20which=0D=0A>=20>>>=20is=20si= milar=20to=20other=20Samsung=20SoCs.=0D=0A>=20>>>=0D=0A>=20>>=20You=20shoul= d=20explain=20here=20(and=20in=20DTS=20patches=20or=20the=20bindings)=20the= =0D=0A>=20>>=20hardware,=20that=20this=20is=20Samsung=20SoC.=0D=0A>=20>>=0D= =0A>=20>>=20You=20could=20also=20explain=20the=20differences=20from=20Exyno= s=20and=20proposed=0D=0A>=20>>=20handling=20of=20patches=20(because=20this= =20is=20odd)=0D=0A>=20>>=0D=0A>=20>>=20Also,=20entire=20patchset=20has=20wr= ong=20and=20incomplete=20SoBs.=20Your=20SoB=20is=0D=0A>=20>>=20missing=20ev= erywhere,=20others=20have=20wrong=20order.=0D=0A>=20>>=0D=0A>=20>>=20Please= =20read=20submitting=20patches=20first.=0D=0A>=20>>=0D=0A>=20>=0D=0A>=20>= =20This=20Custom=20SoC=20is=20owned=20by=20the=20Axis=20(OEM)=20and=20manuf= actured=20by=20the=0D=0A>=20>=20Samsung=20(ODM).=20It=20has=20standard=20Sa= msung=20specific=20IP=20blocks.=0D=0A>=20=0D=0A>=20=0D=0A>=20It=20is=20desi= gned=20by=20Samsung.=20It=20is=20Samsung=20SoC.=0D=0A>=20=0D=0A>=20Anyway,= =20don't=20explain=20to=20me,=20but=20in=20your=20patchset.=0D=0A=0D=0AHi= =20Krzysztof,=0D=0A=0D=0AThank=20you=20for=20your=20review=20comments=20on= =20the=20ARTPEC-8=20platform=20patches.=0D=0AI'd=20like=20to=20add=20more= =20context=20about=20the=20ARTPEC-8=20SoC=20to=20help=20clarify=20its=0D=0A= relationship=20with=20Exynos.=0D=0A=0D=0AHere=20are=20the=20key=20details= =20about=20ARTPEC-8:=0D=0A=20=20=20-=20Manufactured=20by=20Samsung=20Foundr= y=0D=0A=20=20=20-=20SoC=20architecture=20is=20owned=20by=20Axis=20Communica= tions=0D=0A=09-=20On=20similar=20model=20as=20Tesla's=20FSD=20chip=20owned= =20by=20Tesla=20and=20=0D=0A=20=20=20=20=20=20=20=20=20=20=20=20=20=20manuf= actured=20and=20=20by=20Samsung=0D=0A=20=20=20-=20IPs=20from=20both=20Samsu= ng=20and=20Axis=20Communications=0D=0A=0D=0ASamsung-provided=20IPs:=0D=0A= =20=20-=20UART=0D=0A=20=20-=20Ethernet=20(Vendor:=20Synopsys)=0D=0A=20=20= =20=20=20=20=20-=20Same=20IP=20has=20been=20integrated=20as=20integrated=20= in=20FSD=20Chip=0D=0A=20=20-=20SDIO=0D=0A=20=20-=20SPI=0D=0A=20=20-=20HSI2C= =0D=0A=20=20-=20I2S=0D=0A=20=20-=20CMU=20(Clock=20Management=20Unit)=0D=0A= =20=20=20=20=20=20=20Follows=20same=20CMU=20HW=20architecture=20as=20Exynos= =20SoC=20have=0D=0A=20=20-=20Pinctrl=20(GPIO)=0D=0A=20=20-=20PCIe=20(Vendor= :=20Synopsys)=0D=0A=20=20=20=20=20=20=20Though=20Exynos,=20FSD,=20ARTPEC=20= have=20same=20DesignWare=20Controller,=20=0D=0A=20=20=20=20=20=20=20the=20g= lue/wrapper=20layer=20around=20DWC=20Core=20has=20differences=20across=0D= =0A=20=20=20=20=20=20=20these=20SoCs.=20All=20manufactured=20by=20Samsung,= =20but=20differences=20are=20there=0D=0A=20=20=20=20=20=20=20in=20HW=20desi= gn=20and=20for=20different=20products.=20For=20the=20same=20reason=20PCIe= =20patch=0D=0A=20=20=20=20=20=20=20refactoring=20effort=20is=20being=20put= =20by=20us=20=5B1=5D=20to=20streamline=20single=20Exynos=20driver=0D=0A=20= =20=20=20=20=20=20which=20can=20support=20all=20Samsung=20manufactured=20So= Cs=20having=20DWC=20PCIe=20controller.=0D=0A=20=20=20=20=20=20=5B1=5D:=20ht= tps://patchwork.ozlabs.org/project/linux-pci/patch/20250625165229.3458-2-sh= radha.t=40samsung.com/=0D=0A=0D=0AAxis-provided=20IPs:=0D=0A=20=20=20=20-= =20VIP=20(Image=20Sensor=20Processing=20IP)=0D=0A=20=20=20=20-=20VPP=20(Vid= eo=20Post=20Processing)=0D=0A=20=20=20=20-=20GPU=0D=0A=20=20=20=20-=20CDC= =20(Video=20Encoder)=0D=0A=0D=0AAs=20part=20of=20the=20upstreaming=20effort= ,=20Samsung=20and=20Coasia=20(DSP)=20team=20will=20work=20together=0D=0Ato= =20upstream=20basic=20SoC=20support=20and=20Samsung=20IPs=20support.=0D=0AT= he=20Axis=20team=20will=20be=20the=20primary=20maintainer=20for=20the=20ART= PEC-8=20SoC=20codebase.=0D=0A=0D=0AGiven=20that=20ARTPEC-8=20is=20a=20disti= nct=20SoC=20with=20its=20own=20set=20of=20IPs,=20we=20believe=20it's=20reas= onable=0D=0Ato=20create=20a=20separate=20directory=20for=20it,=20similar=20= to=20FSD.=0D=0A=0D=0AWe=20will=20remove=20Samsung=20and=20Coasia=20teams=20= from=20the=20maintainers=20list=20in=20v2=20and=20only=0D=0AAxis=20team=20w= ill=20be=20maintainer.=0D=0A=0D=0AMaintainer=20list=20for=20previous=20gene= ration=20of=20Axis=20chips=20(ARM=20based)=20is=20already=20present,=0D=0As= o=20this=20will=20be=20merged=20into=20that.=0D=0A=0D=0APlease=20let=20us= =20know=20if=20this=20explanation=20addresses=20your=20concerns.=20=0D=0AWe= 'll=20update=20the=20commit=20message=20and=20cover=20letter=20accordingly.= =0D=0A=0D=0AThanks,=0D=0APankaj=20Dubey=0D=0A=0D=0A>=20=0D=0A>=20Best=20reg= ards,=0D=0A>=20Krzysztof=0D=0A=0D=0A