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Fri, 14 Jan 2022 08:13:25 +0000 (GMT) Received: from epsmgms1p2.samsung.com (unknown [182.195.42.42]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20220114081325epsmtrp2a3afdd170627c5168acba7662365e069~KFOkcQNNy2051820518epsmtrp2E; Fri, 14 Jan 2022 08:13:25 +0000 (GMT) X-AuditID: b6c32a49-b13ff70000001917-92-61e130a573fc Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2.samsung.com (Symantec Messaging Gateway) with SMTP id 67.0A.08738.5A031E16; Fri, 14 Jan 2022 17:13:25 +0900 (KST) Received: from alimakhtar03 (unknown [107.122.12.5]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20220114081322epsmtip28c05f7bde104a28cfa727e5ce4b74396~KFOhnAVUy1391013910epsmtip2z; Fri, 14 Jan 2022 08:13:22 +0000 (GMT) From: "Alim Akhtar" To: "'Arnd Bergmann'" , "'Krzysztof Kozlowski'" Cc: "'Linux ARM'" , "'Linux Kernel Mailing List'" , "'SoC Team'" , "'linux-clk'" , "'DTML'" , "'Olof Johansson'" , "'Linus Walleij'" , "'Catalin Marinas'" , "'Rob Herring'" , "'Sylwester Nawrocki'" , "'moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES'" , "'Pankaj Dubey'" , , "'Arjun K V'" , "'Aswani Reddy'" , "'Ajay Kumar'" , "'Sriranjani P'" , "'Chandrasekar R'" , "'Shashank Prashar'" In-Reply-To: Subject: RE: [PATCH 14/23] arm64: dts: fsd: Add initial device tree support Date: Fri, 14 Jan 2022 13:43:20 +0530 Message-ID: <07ce01d8091e$9a6fd9c0$cf4f8d40$@samsung.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQKuNmZ/+9PJHbdzezyQqzGEXzr0sgIO4TNYAcRhnYYCPaD7jACVm+o+qoCU36A= Content-Language: en-us X-Brightmail-Tracker: H4sIAAAAAAAAA02Te1ATVxTGudnsJmFA1wDlSquTZnSm0gETCemGMQKtU9OKDsr0OdW4JWtg CElmE6zShwiDPFVCS9FIokWBiowtz6axtjYEqFqhldfYhiqCHXlICulUQWKbZG3Lf9859/fd c859cBG+B4viZmqNFK0lNUIsmN3Rue65mHrRKCk6v4W47P6eTTScs7MJb2U3h3C0tnMId305 IE45e1Gi+f5DFvHJYgOLaBkbQonZ8t9QYnTyDaLfXoMRx/u+ZRFXhz0YUdv+J4cw/2RDicJL Tg7ROV2EElabBRBjw4sY8ev0BTQpQtFkbQKKRwuVQGHOO4IpWhpLMIVr6BtM0Xr2oGLgh3xU cbStESge51s4Ck/L6tTgt7M2ZlCkiqIFlDZdp8rUquXCrWnKl5TxUpE4RiwjXhAKtGQ2JRdu TkmNeTlT4xtRKNhHanJ8qVTSYBCu37SR1uUYKUGGzmCUCym9SqOX6GMNZLYhR6uO1VLGBLFI tCHeB+7JyhieOY/qrVH7q6peywPuiFLA5UJcAj+df78U8Lh8/CKA1d9RpSDYp+cA7FgoQ5nA A+DgwnXUT/kNx09c4zALdgAbv/4FY4IJAK8/OMXyUxgeA21nDmN+HY6rYGeHOwAh+CIGW0d6 2f4FHr4Dlrd2BXQYvhUWTrUGSrDxtdDRXBPYKBSXwemCfsDoFfDKifEAj+DPw/rPphCmJQGc v1uPMsW2wx8n7qMMEwknupyBViFezYOu5iscZujNsO9iCuMNg5M9bRxGR0HPzCWMQbJguT2O SX8A66zdbEYnwssDNWw/guDr4Bf29UylZfDIo3EW4wyFxYf5DL0WFswMPnE+DU1lZU/OUAG7 bvaiFeBZ85K5zEvmMi/p3/x/sdOA3QhWUnpDtpoyxOvFWuq9/y47XZfdAgKvP/oVGxi5/Ues A7C4wAEgFxGGhx6jb5H8UBV5IJeidUo6R0MZHCDed9gmJCoiXef7PlqjUiyRiSRSqVQii5OK hZGh19RfknxcTRqpLIrSU/S/PhaXF5XHUpN0yHZZz1PlY6mr2y9YNgwmnJGndGyK3J/+cymv mxf85r6GiL3dsrH5A65Dk94HdbeQbMvmlui/2Wv2zIVVuMTAXqQZQfrla1zed2fOJhY7TEkD y6VuyzZTwc05a0hdbm0XbY08VKOZ3vVOd+0OHb/voKUvInmX88NCL2s0caVyJmH3TpM37FX7 x4Mh1SffqgSSnT0vCrmPxb/fiZn9azwoN2iqyPsQum7cKxnKvyFIjtUOxlnc26joZWm2cEFa tSeZorNKNPfmX98r/7y2eNX83QWwHD8ZlOS9fXXFbNwz5z7a3R6kaSqrONbW3zBnikWqelVb 7jiVNsyZdvqrVUK2IYMURyO0gfwHTaPQHIYEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA02Sa0hTYRzGec/ObaPRcWq+Kt3WFU1zZvLOG0YUx4LMvhhF2MqTZputLUsj aCiaiZqFlq25LqaimLSpdRK7zSmmaZbhoMK1VMI0tRbd1Aq3Ar/94HmeH/8Pf1ogceB+9OH0 45wmXaGUkiL8bpt0aVBViEMR0sAvRY8nn+CoprYFR7MXOyhkaWym0GR1IUDXrL0EMn36gaHS mRoMmYcGCPS5cJBAjo+JqL/FQKLy5w8x1GVzkuhm81cK6ft4AuU+sFKobfwsgYx8BUBDthkS vRlvIGK92XpjPWCnf10ErF5XRLLmunMk+3aglWQbb51hX3VmE2xxUx1gf2dXUKzTvGSnaI8o KplTHj7BadbH7BelTtXXYuo238zbpQt04JJ3ARDSkAmD5Ve6qQIgoiUMD6Bd/5h0B/7QZiqh 3OwJa39/+Ff6AGCxvYyYC0gmCPKVea6BF5MMzflOV0nA5FPw+0M76V60YLCMn3GphEwCLGxs x+fYk9kOc8caXSacWQUtJgM2x2JGDsdz+oGbPeDTK8OuvoAJhEWOXPCfq2+MCdznLYM/R6oJ 9xU74LPRT4S74wNH261UCfDUz1Pp56n081T6eZPrAK8Dvpxaq0pRaWXq0HTuZLBWodJmpKcE HzyqMgPXFwQE8KC1birYAjAaWACkBVIv8XmNXSERJyuyTnGao0maDCWntQB/Gpf6iPsKniZJ mBTFce4Ix6k5zf8Uo4V+OiwsaY0pzpzBD8SE3Tcsz9smE3K4gWjavFq4JUfn0aoeGFWSRuLY 6y0d4e/0trUrLw9FVqm94qYFCRHWdydi+lZ8zcm+Da7uGbR2dm5l2nSj8R7rm6M3KGOzZt+X vDqwIqxjWL43YnidIfpCoL1n0zrJQjn6pmmvmSD3jfgWSVRRafEJkYXGG2S3uj/Ir7S3JMKQ GDEW2yOVNzhqZqs29r8MrCj+IvgjHzmdt+uecYI4kzGVkhba44wKEcO94bNUqazcWZYKzROJ d/wv71xg2zR5rWdcxgpfxG1OO5TLH8lvWkRPG3Y/jzY9+v6LygwfWr5rQ9pg1yHv0MWRbyp5 Ka5NVcgCBBqt4i/yaAiJdAMAAA== X-CMS-MailID: 20220114081325epcas5p19ffafd2eb6277d2b7dc1cd8b0fd1e1a9 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20220113122413epcas5p46cb2cafb73936c423017240f98f72845 References: <20220113121143.22280-1-alim.akhtar@samsung.com> <20220113121143.22280-15-alim.akhtar@samsung.com> <55c22c3a-57ea-3320-ccb9-f03643563235@canonical.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Arnd and Krzysztof >-----Original Message----- >From: Arnd Bergmann =5Bmailto:arnd=40arndb.de=5D >Sent: Thursday, January 13, 2022 7:54 PM >To: Krzysztof Kozlowski >Cc: Alim Akhtar ; Linux ARM kernel=40lists.infradead.org>; Linux Kernel Mailing List kernel=40vger.kernel.org>; SoC Team ; linux-clk clk=40vger.kernel.org>; DTML ; Olof Johansso= n >; Linus Walleij ; Catalin Ma= rinas >; Rob Herring ; Sylwester >Nawrocki ; moderated list:ARM/SAMSUNG >EXYNOS ARM ARCHITECTURES ; Pankaj >Dubey ; linux-fsd=40tesla.com; Arjun K V >; Aswani Reddy ; >Ajay Kumar ; Sriranjani P >; Chandrasekar R ; >Shashank Prashar ; Arnd Bergmann > >Subject: Re: =5BPATCH 14/23=5D arm64: dts: fsd: Add initial device tree su= pport > >On Thu, Jan 13, 2022 at 2:16 PM Krzysztof Kozlowski > wrote: >> > ARM/TETON BGA MACHINE SUPPORT >> > M: =22Mark F. Brown=22 >> > L: linux-arm-kernel=40lists.infradead.org (moderated for non-subscr= ibers) >> > diff --git a/arch/arm64/Kconfig.platforms >> > b/arch/arm64/Kconfig.platforms index 54e3910e8b9b..bb8a047c2359 >> > 100644 >> > --- a/arch/arm64/Kconfig.platforms >> > +++ b/arch/arm64/Kconfig.platforms >> > =40=40 -267,6 +267,12 =40=40 config ARCH_TEGRA >> > help >> > This enables support for the NVIDIA Tegra SoC family. >> > >> > +config ARCH_TESLA_FSD >> > + bool =22ARMv8 based Tesla platform=22 >> > + select ARCH_EXYNOS >> >> How similar it is? I think it is better to duplicate Exynos >> selections/options here, instead of selecting entire ARCH. If this >> would require =22depends on ARCH_EXYNOS =7C=7C ARCH_TESLA_FSD=22 >everywhere in >> the drivers, it's a hint that it is not a separate SoC but it is an >> Exynos, so it might not need a new sub-architecture. > >Agreed, the SoC family options mainly exist so we can quickly enable or >disable drivers based on what a kernel is built for. If most of the driver= s for >this SoC are shared with Exynos, I think having a single option is suffici= ent, but >it may be worth pointing out both in the help text. > >If we want to have a separate option (mainly to help users find it), maybe= a >'depends on ARCH_EXYNOS' would be better. How many uses of >ARCH_TESLA_FSD are there? > It is true that FSD shares few IPs with Exynos and it dose contains Telsa s= pecific IPs/ PCIe/some of the PHYs/ GPUs (different then Exynos) etc. to na= me a few. And drivers for those will be posted in upcoming phases by Samsung, Telsa e= tc. AFA architecture is concerns both Exynos and FSD has completely different a= rchitecture (at least at HW level). In my opinion, it is make sense to have a separate option for FSD. And as Arnd suggested =22'depends on ARCH_EXYNOS=22 may be the way forward. > Arnd From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 03ED3C433EF for ; Fri, 14 Jan 2022 08:15:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:References:MIME-Version:Message-ID:Date :Subject:In-Reply-To:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=jLSMtORyo8L8i3DYJ3TlclT5tB7rsSQtpgekMiBXCgg=; 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Fri, 14 Jan 2022 08:13:25 +0000 (GMT) Received: from epsmgms1p2.samsung.com (unknown [182.195.42.42]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20220114081325epsmtrp2a3afdd170627c5168acba7662365e069~KFOkcQNNy2051820518epsmtrp2E; Fri, 14 Jan 2022 08:13:25 +0000 (GMT) X-AuditID: b6c32a49-b13ff70000001917-92-61e130a573fc Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2.samsung.com (Symantec Messaging Gateway) with SMTP id 67.0A.08738.5A031E16; Fri, 14 Jan 2022 17:13:25 +0900 (KST) Received: from alimakhtar03 (unknown [107.122.12.5]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20220114081322epsmtip28c05f7bde104a28cfa727e5ce4b74396~KFOhnAVUy1391013910epsmtip2z; Fri, 14 Jan 2022 08:13:22 +0000 (GMT) From: "Alim Akhtar" To: "'Arnd Bergmann'" , "'Krzysztof Kozlowski'" Cc: "'Linux ARM'" , "'Linux Kernel Mailing List'" , "'SoC Team'" , "'linux-clk'" , "'DTML'" , "'Olof Johansson'" , "'Linus Walleij'" , "'Catalin Marinas'" , "'Rob Herring'" , "'Sylwester Nawrocki'" , "'moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES'" , "'Pankaj Dubey'" , , "'Arjun K V'" , "'Aswani Reddy'" , "'Ajay Kumar'" , "'Sriranjani P'" , "'Chandrasekar R'" , "'Shashank Prashar'" In-Reply-To: Subject: RE: [PATCH 14/23] arm64: dts: fsd: Add initial device tree support Date: Fri, 14 Jan 2022 13:43:20 +0530 Message-ID: <07ce01d8091e$9a6fd9c0$cf4f8d40$@samsung.com> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQKuNmZ/+9PJHbdzezyQqzGEXzr0sgIO4TNYAcRhnYYCPaD7jACVm+o+qoCU36A= Content-Language: en-us X-Brightmail-Tracker: H4sIAAAAAAAAA02Te1ATVxTGudnsJmFA1wDlSquTZnSm0gETCemGMQKtU9OKDsr0OdW4JWtg CElmE6zShwiDPFVCS9FIokWBiowtz6axtjYEqFqhldfYhiqCHXlICulUQWKbZG3Lf9859/fd c859cBG+B4viZmqNFK0lNUIsmN3Rue65mHrRKCk6v4W47P6eTTScs7MJb2U3h3C0tnMId305 IE45e1Gi+f5DFvHJYgOLaBkbQonZ8t9QYnTyDaLfXoMRx/u+ZRFXhz0YUdv+J4cw/2RDicJL Tg7ROV2EElabBRBjw4sY8ev0BTQpQtFkbQKKRwuVQGHOO4IpWhpLMIVr6BtM0Xr2oGLgh3xU cbStESge51s4Ck/L6tTgt7M2ZlCkiqIFlDZdp8rUquXCrWnKl5TxUpE4RiwjXhAKtGQ2JRdu TkmNeTlT4xtRKNhHanJ8qVTSYBCu37SR1uUYKUGGzmCUCym9SqOX6GMNZLYhR6uO1VLGBLFI tCHeB+7JyhieOY/qrVH7q6peywPuiFLA5UJcAj+df78U8Lh8/CKA1d9RpSDYp+cA7FgoQ5nA A+DgwnXUT/kNx09c4zALdgAbv/4FY4IJAK8/OMXyUxgeA21nDmN+HY6rYGeHOwAh+CIGW0d6 2f4FHr4Dlrd2BXQYvhUWTrUGSrDxtdDRXBPYKBSXwemCfsDoFfDKifEAj+DPw/rPphCmJQGc v1uPMsW2wx8n7qMMEwknupyBViFezYOu5iscZujNsO9iCuMNg5M9bRxGR0HPzCWMQbJguT2O SX8A66zdbEYnwssDNWw/guDr4Bf29UylZfDIo3EW4wyFxYf5DL0WFswMPnE+DU1lZU/OUAG7 bvaiFeBZ85K5zEvmMi/p3/x/sdOA3QhWUnpDtpoyxOvFWuq9/y47XZfdAgKvP/oVGxi5/Ues A7C4wAEgFxGGhx6jb5H8UBV5IJeidUo6R0MZHCDed9gmJCoiXef7PlqjUiyRiSRSqVQii5OK hZGh19RfknxcTRqpLIrSU/S/PhaXF5XHUpN0yHZZz1PlY6mr2y9YNgwmnJGndGyK3J/+cymv mxf85r6GiL3dsrH5A65Dk94HdbeQbMvmlui/2Wv2zIVVuMTAXqQZQfrla1zed2fOJhY7TEkD y6VuyzZTwc05a0hdbm0XbY08VKOZ3vVOd+0OHb/voKUvInmX88NCL2s0caVyJmH3TpM37FX7 x4Mh1SffqgSSnT0vCrmPxb/fiZn9azwoN2iqyPsQum7cKxnKvyFIjtUOxlnc26joZWm2cEFa tSeZorNKNPfmX98r/7y2eNX83QWwHD8ZlOS9fXXFbNwz5z7a3R6kaSqrONbW3zBnikWqelVb 7jiVNsyZdvqrVUK2IYMURyO0gfwHTaPQHIYEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA02Sa0hTYRzGec/ObaPRcWq+Kt3WFU1zZvLOG0YUx4LMvhhF2MqTZputLUsj aCiaiZqFlq25LqaimLSpdRK7zSmmaZbhoMK1VMI0tRbd1Aq3Ar/94HmeH/8Pf1ogceB+9OH0 45wmXaGUkiL8bpt0aVBViEMR0sAvRY8nn+CoprYFR7MXOyhkaWym0GR1IUDXrL0EMn36gaHS mRoMmYcGCPS5cJBAjo+JqL/FQKLy5w8x1GVzkuhm81cK6ft4AuU+sFKobfwsgYx8BUBDthkS vRlvIGK92XpjPWCnf10ErF5XRLLmunMk+3aglWQbb51hX3VmE2xxUx1gf2dXUKzTvGSnaI8o KplTHj7BadbH7BelTtXXYuo238zbpQt04JJ3ARDSkAmD5Ve6qQIgoiUMD6Bd/5h0B/7QZiqh 3OwJa39/+Ff6AGCxvYyYC0gmCPKVea6BF5MMzflOV0nA5FPw+0M76V60YLCMn3GphEwCLGxs x+fYk9kOc8caXSacWQUtJgM2x2JGDsdz+oGbPeDTK8OuvoAJhEWOXPCfq2+MCdznLYM/R6oJ 9xU74LPRT4S74wNH261UCfDUz1Pp56n081T6eZPrAK8Dvpxaq0pRaWXq0HTuZLBWodJmpKcE HzyqMgPXFwQE8KC1birYAjAaWACkBVIv8XmNXSERJyuyTnGao0maDCWntQB/Gpf6iPsKniZJ mBTFce4Ix6k5zf8Uo4V+OiwsaY0pzpzBD8SE3Tcsz9smE3K4gWjavFq4JUfn0aoeGFWSRuLY 6y0d4e/0trUrLw9FVqm94qYFCRHWdydi+lZ8zcm+Da7uGbR2dm5l2nSj8R7rm6M3KGOzZt+X vDqwIqxjWL43YnidIfpCoL1n0zrJQjn6pmmvmSD3jfgWSVRRafEJkYXGG2S3uj/Ir7S3JMKQ GDEW2yOVNzhqZqs29r8MrCj+IvgjHzmdt+uecYI4kzGVkhba44wKEcO94bNUqazcWZYKzROJ d/wv71xg2zR5rWdcxgpfxG1OO5TLH8lvWkRPG3Y/jzY9+v6LygwfWr5rQ9pg1yHv0MWRbyp5 Ka5NVcgCBBqt4i/yaAiJdAMAAA== X-CMS-MailID: 20220114081325epcas5p19ffafd2eb6277d2b7dc1cd8b0fd1e1a9 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20220113122413epcas5p46cb2cafb73936c423017240f98f72845 References: <20220113121143.22280-1-alim.akhtar@samsung.com> <20220113121143.22280-15-alim.akhtar@samsung.com> <55c22c3a-57ea-3320-ccb9-f03643563235@canonical.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220114_001339_212671_92B08A02 X-CRM114-Status: GOOD ( 22.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Arnd and Krzysztof >-----Original Message----- >From: Arnd Bergmann [mailto:arnd@arndb.de] >Sent: Thursday, January 13, 2022 7:54 PM >To: Krzysztof Kozlowski >Cc: Alim Akhtar ; Linux ARM kernel@lists.infradead.org>; Linux Kernel Mailing List kernel@vger.kernel.org>; SoC Team ; linux-clk clk@vger.kernel.org>; DTML ; Olof Johansson >; Linus Walleij ; Catalin Marinas >; Rob Herring ; Sylwester >Nawrocki ; moderated list:ARM/SAMSUNG >EXYNOS ARM ARCHITECTURES ; Pankaj >Dubey ; linux-fsd@tesla.com; Arjun K V >; Aswani Reddy ; >Ajay Kumar ; Sriranjani P >; Chandrasekar R ; >Shashank Prashar ; Arnd Bergmann > >Subject: Re: [PATCH 14/23] arm64: dts: fsd: Add initial device tree support > >On Thu, Jan 13, 2022 at 2:16 PM Krzysztof Kozlowski > wrote: >> > ARM/TETON BGA MACHINE SUPPORT >> > M: "Mark F. Brown" >> > L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) >> > diff --git a/arch/arm64/Kconfig.platforms >> > b/arch/arm64/Kconfig.platforms index 54e3910e8b9b..bb8a047c2359 >> > 100644 >> > --- a/arch/arm64/Kconfig.platforms >> > +++ b/arch/arm64/Kconfig.platforms >> > @@ -267,6 +267,12 @@ config ARCH_TEGRA >> > help >> > This enables support for the NVIDIA Tegra SoC family. >> > >> > +config ARCH_TESLA_FSD >> > + bool "ARMv8 based Tesla platform" >> > + select ARCH_EXYNOS >> >> How similar it is? I think it is better to duplicate Exynos >> selections/options here, instead of selecting entire ARCH. If this >> would require "depends on ARCH_EXYNOS || ARCH_TESLA_FSD" >everywhere in >> the drivers, it's a hint that it is not a separate SoC but it is an >> Exynos, so it might not need a new sub-architecture. > >Agreed, the SoC family options mainly exist so we can quickly enable or >disable drivers based on what a kernel is built for. If most of the drivers for >this SoC are shared with Exynos, I think having a single option is sufficient, but >it may be worth pointing out both in the help text. > >If we want to have a separate option (mainly to help users find it), maybe a >'depends on ARCH_EXYNOS' would be better. How many uses of >ARCH_TESLA_FSD are there? > It is true that FSD shares few IPs with Exynos and it dose contains Telsa specific IPs/ PCIe/some of the PHYs/ GPUs (different then Exynos) etc. to name a few. And drivers for those will be posted in upcoming phases by Samsung, Telsa etc. AFA architecture is concerns both Exynos and FSD has completely different architecture (at least at HW level). In my opinion, it is make sense to have a separate option for FSD. And as Arnd suggested "'depends on ARCH_EXYNOS" may be the way forward. > Arnd _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel