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 X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B7B4C433DF for ; Fri, 15 May 2020 07:19:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D32BB2076A for ; Fri, 15 May 2020 07:19:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=goldelico.com header.i=@goldelico.com header.b="V4rmYoQN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726615AbgEOHTV (ORCPT ); Fri, 15 May 2020 03:19:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51980 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726434AbgEOHTU (ORCPT ); Fri, 15 May 2020 03:19:20 -0400 Received: from mo6-p02-ob.smtp.rzone.de (mo6-p02-ob.smtp.rzone.de [IPv6:2a01:238:20a:202:5302::7]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 920BCC061A0C; Fri, 15 May 2020 00:19:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1589527155; s=strato-dkim-0002; d=goldelico.com; h=To:References:Message-Id:Cc:Date:In-Reply-To:From:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=/LlQLnJSjr1dPjlAnAK+u/lQG0tGroGOnAwr3HRIIDg=; b=V4rmYoQNMiSdVNe+dWbLMntZAM4z93rruWDqBl4jIT/149VE95L/x3e6Izb3Bs3eyg tk4HunCz0xxntP2hQvK0O33IO16iO3NAOWHc3cB8Z8OrBMXwXk/yWXFHvPmWk+xX8Ll5 dF1YuCJ16hBNa93UGhg1Vh3qjEL0JdM8chtrEPk4SXOOA9AiBdNddJqmOAkHqpwuz2AM 1N58+yn/d/9SNgUyZ8GRDkvhQ/ehCXXpQJuWL+H0JVTHKXvfmFeiNUIdgs9FOGJn8FvE dJvnMUo1CiW0KXL9HUGsXmDQ9dv4BC3Cdg0//a56AAyC7WYbePBDs6kpZU0JPm0bhf77 xLNQ== X-RZG-AUTH: ":JGIXVUS7cutRB/49FwqZ7WcJeFKiMgPgp8VKxflSZ1P34KBj7wpz8NMGH/vtwDOvBTU=" X-RZG-CLASS-ID: mo00 Received: from imac.fritz.box by smtp.strato.de (RZmta 46.6.2 DYNA|AUTH) with ESMTPSA id R0acebw4F7IYYRg (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (curve X9_62_prime256v1 with 256 ECDH bits, eq. 3072 bits RSA)) (Client did not present a certificate); Fri, 15 May 2020 09:18:34 +0200 (CEST) Subject: Re: [PATCH v7 01/12] dt-bindings: add img,pvrsgx.yaml for Imagination GPUs Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Content-Type: text/plain; charset=iso-8859-1 From: "H. Nikolaus Schaller" In-Reply-To: <08B861A8-D4C2-48A6-9B05-B8CA43312834@goldelico.com> Date: Fri, 15 May 2020 09:18:33 +0200 Cc: David Airlie , Daniel Vetter , Rob Herring , Mark Rutland , =?iso-8859-1?Q?Beno=EEt_Cousson?= , Tony Lindgren , Ralf Baechle , James Hogan , Kukjin Kim , Krzysztof Kozlowski , Maxime Ripard , Chen-Yu Tsai , Thomas Bogendoerfer , Jonathan Bakker , Philipp Rossak , "open list:DRM PANEL DRIVERS" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Linux Kernel Mailing List , linux-omap , OpenPVRSGX Linux Driver Group , Discussions about the Letux Kernel , kernel@pyra-handheld.com, linux-mips@vger.kernel.org, arm-soc , linux-samsung-soc@vger.kernel.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <3a451e360fed84bc40287678b4d6be13821cfbc0.1587760454.git.hns@goldelico.com> <28138EC0-0FA5-4F97-B528-3442BF087C7A@goldelico.com> <3D8B59D6-83E3-4FE6-9C99-E2E5616A8139@goldelico.com> <8EER9Q.C206SXNSICP7@crapouillou.net> <08B861A8-D4C2-48A6-9B05-B8CA43312834@goldelico.com> To: Paul Cercueil , Paul Burton X-Mailer: Apple Mail (2.3124) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Paul & Paul, > Am 03.05.2020 um 18:41 schrieb H. Nikolaus Schaller = : >=20 > Hi Paul and Paul, >=20 >> Am 03.05.2020 um 16:18 schrieb Paul Cercueil : >>=20 >>=20 >>=20 >> Le dim. 3 mai 2020 =E0 15:31, H. Nikolaus Schaller = a =E9crit : >>> Hi Paul, >>>> Am 03.05.2020 um 14:52 schrieb Paul Cercueil = : >>>>>> It's possible to forbid the presence of the 'clocks' property on = some implementations, and require it on others. >>>>> To be precise we have to specify the exact number of clocks = (between 0 and 4) for every architecture. >>>>> This also contradicts my dream to get rid of the architecture = specific components in the long run. My dream (because I can't tell how = it can be done) is that we can one day develop something which just = needs compatible =3D img,530 or imp,540 or img,544. Then we can't make = the number clocks depend on the implementation any more. >>>> As we said before, the number of clocks is a property of the GPU = and *not* its integration into the SoC. >>> Well, it is a not very well documented property of the GPU. We have = no data sheet of the standalone GPU. Only several SoC data sheets which = give some indications. >>=20 >> Maybe we can nicely ask them? >=20 > There is some (old) answer here: >=20 > = https://github.com/MIPS/CI20_linux/blob/ci20-v3.18/arch/mips/boot/dts/jz47= 80.dtsi#L63 >=20 >> I expect Paul Burton to have some contacts at ImgTec. Asking for a = doc would be too much, but maybe they can help a bit with the DT = bindings. >=20 > Good idea! It is definitively worth to try. Therefore I have moved him = from CC: to To: Do we already have an idea if we can get into contact and get help from = ImgTec for this topic or if we have to live with what we have? BR and thanks, Nikolaus 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 X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58CA1C433E0 for ; Fri, 15 May 2020 07:19:04 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 86D7420760 for ; Fri, 15 May 2020 07:19:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="D1Cown9x"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=goldelico.com header.i=@goldelico.com header.b="pBwuM+bS" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 86D7420760 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goldelico.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:References:Message-Id:Date: In-Reply-To:From:Mime-Version:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/3BQxxRM8tyDrnozmBiah9/cUG+IrbyHunUrVvhIpTE=; b=D1Cown9xoZecTH ebDRjs1olB0sDoBdp0VpUHhKyyywXJfB2U8tnbSYJaSJQplZhOR8WtOb2/xetfaFelR7US7A43nmH 4XKp2kBLsH4GstrU8oFoGy5onMdQsT9KyuyGr9wkDwweejptRgiZ43Cf0aPWvDhyrvP4cq/CY+LLD 4T+9IZUGjL5FiFuMSKAiuB5DcorzY/JCYRjEKwnoCvodz5AAx2rEzGfJU1wI3G/wTIteZyG5ZYuhL AtR+qhcIr2oUoZR2iN9rAnvMoAS86c7xP8wRXKOmm6mVPjruGjf8g2tSNnkLJIP5riEZFrdXnza+H diF1XWwDUOPckyvJc5OA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZUcZ-0005nV-59; Fri, 15 May 2020 07:19:03 +0000 Received: from mo6-p02-ob.smtp.rzone.de ([2a01:238:20a:202:5302::11]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZUcS-0005l8-De for linux-arm-kernel@lists.infradead.org; Fri, 15 May 2020 07:19:01 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1589527125; s=strato-dkim-0002; d=goldelico.com; h=To:References:Message-Id:Cc:Date:In-Reply-To:From:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=/LlQLnJSjr1dPjlAnAK+u/lQG0tGroGOnAwr3HRIIDg=; b=pBwuM+bS37tPnPiPgRTjgQOlB2/DddwgW7AqPDMVE2Zm5t8pbJMf97G+hfKZhEN8PU fp1FGEl9qPoT4l/uzeX1xE65PTbMgfJuJUWjOD6t3ZAqmDya5skiO8r2qoqWc3df6pfr 2qRTJFVr/YLFFxhJpcKXB8DNs0eTdFdJmaX8gH3KX/SUeymTIS96bcduZhTmg5zItfDV pBnDIN7UF4euSqIwdMBvqsb4przbXAEvUlELlJGYhfAPT+LEEtuBgSw8/hCLiSI/ZaCU pI9gY4u8XUGMywE2twViG6QH1rqMSR2dKewolcZEgxRl+D3VCMA+VfjeX9bTlQIPS5rl R56A== X-RZG-AUTH: ":JGIXVUS7cutRB/49FwqZ7WcJeFKiMgPgp8VKxflSZ1P34KBj7wpz8NMGH/vtwDOvBTU=" X-RZG-CLASS-ID: mo00 Received: from imac.fritz.box by smtp.strato.de (RZmta 46.6.2 DYNA|AUTH) with ESMTPSA id R0acebw4F7IYYRg (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (curve X9_62_prime256v1 with 256 ECDH bits, eq. 3072 bits RSA)) (Client did not present a certificate); Fri, 15 May 2020 09:18:34 +0200 (CEST) Subject: Re: [PATCH v7 01/12] dt-bindings: add img, pvrsgx.yaml for Imagination GPUs Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: "H. Nikolaus Schaller" In-Reply-To: <08B861A8-D4C2-48A6-9B05-B8CA43312834@goldelico.com> Date: Fri, 15 May 2020 09:18:33 +0200 Message-Id: References: <3a451e360fed84bc40287678b4d6be13821cfbc0.1587760454.git.hns@goldelico.com> <28138EC0-0FA5-4F97-B528-3442BF087C7A@goldelico.com> <3D8B59D6-83E3-4FE6-9C99-E2E5616A8139@goldelico.com> <8EER9Q.C206SXNSICP7@crapouillou.net> <08B861A8-D4C2-48A6-9B05-B8CA43312834@goldelico.com> To: Paul Cercueil , Paul Burton X-Mailer: Apple Mail (2.3124) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200515_001857_053468_41ED2FAE X-CRM114-Status: GOOD ( 11.83 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , David Airlie , James Hogan , Jonathan Bakker , "open list:DRM PANEL DRIVERS" , linux-mips@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Discussions about the Letux Kernel , Krzysztof Kozlowski , Tony Lindgren , Chen-Yu Tsai , Kukjin Kim , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , =?iso-8859-1?Q?Beno=EEt_Cousson?= , Maxime Ripard , Rob Herring , linux-omap , arm-soc , Thomas Bogendoerfer , Philipp Rossak , OpenPVRSGX Linux Driver Group , Linux Kernel Mailing List , Ralf Baechle , Daniel Vetter , kernel@pyra-handheld.com Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Paul & Paul, > Am 03.05.2020 um 18:41 schrieb H. Nikolaus Schaller : > = > Hi Paul and Paul, > = >> Am 03.05.2020 um 16:18 schrieb Paul Cercueil : >> = >> = >> = >> Le dim. 3 mai 2020 =E0 15:31, H. Nikolaus Schaller a= =E9crit : >>> Hi Paul, >>>> Am 03.05.2020 um 14:52 schrieb Paul Cercueil : >>>>>> It's possible to forbid the presence of the 'clocks' property on som= e implementations, and require it on others. >>>>> To be precise we have to specify the exact number of clocks (between = 0 and 4) for every architecture. >>>>> This also contradicts my dream to get rid of the architecture specifi= c components in the long run. My dream (because I can't tell how it can be = done) is that we can one day develop something which just needs compatible = =3D img,530 or imp,540 or img,544. Then we can't make the number clocks dep= end on the implementation any more. >>>> As we said before, the number of clocks is a property of the GPU and *= not* its integration into the SoC. >>> Well, it is a not very well documented property of the GPU. We have no = data sheet of the standalone GPU. Only several SoC data sheets which give s= ome indications. >> = >> Maybe we can nicely ask them? > = > There is some (old) answer here: > = > https://github.com/MIPS/CI20_linux/blob/ci20-v3.18/arch/mips/boot/dts/jz4= 780.dtsi#L63 > = >> I expect Paul Burton to have some contacts at ImgTec. Asking for a doc w= ould be too much, but maybe they can help a bit with the DT bindings. > = > Good idea! It is definitively worth to try. Therefore I have moved him fr= om CC: to To: Do we already have an idea if we can get into contact and get help from Img= Tec for this topic or if we have to live with what we have? BR and thanks, Nikolaus _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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 X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 607A7C433DF for ; Sat, 16 May 2020 09:59:02 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 79451206D4 for ; Sat, 16 May 2020 09:59:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=goldelico.com header.i=@goldelico.com header.b="ImXPM6p5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 79451206D4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goldelico.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 289426E10E; Sat, 16 May 2020 09:59:00 +0000 (UTC) Received: from mo6-p02-ob.smtp.rzone.de (mo6-p02-ob.smtp.rzone.de [IPv6:2a01:238:20a:202:5302::6]) by gabe.freedesktop.org (Postfix) with ESMTPS id AB56F6EBF3 for ; Fri, 15 May 2020 07:19:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1589527160; s=strato-dkim-0002; d=goldelico.com; h=To:References:Message-Id:Cc:Date:In-Reply-To:From:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=/LlQLnJSjr1dPjlAnAK+u/lQG0tGroGOnAwr3HRIIDg=; b=ImXPM6p58hj5fez+XLXj3HpuRr8N7veiYjsKl8e2UZFB3vqZHyKMWtiXRwJyMV7GDd cWauAIzgL/FxofJUMJq5Io7x4KsHqSz6BBMGu5Mu0RDbRZ2Q1RoSHSTtys7nW0GCeVt1 40WYOpkAEm32n2YDlbWj5/qU7mycwz0M0JVtRxqTNEq9LkZdLSLGifGA8jE7+xWtSxG5 zfJU24N3Vhz/o6iC1TtdDEBJUBl992bjJcbyrWYBpWB2IMx1r252Wy5ejDrp9RiAno17 ct9sO2tbK5C2KSY1YJTK97/WpHQpUzhNWokBbyOtakW3n3njN53WJpqEeNxzsLHxzRY4 67sw== X-RZG-AUTH: ":JGIXVUS7cutRB/49FwqZ7WcJeFKiMgPgp8VKxflSZ1P34KBj7wpz8NMGH/vtwDOvBTU=" X-RZG-CLASS-ID: mo00 Received: from imac.fritz.box by smtp.strato.de (RZmta 46.6.2 DYNA|AUTH) with ESMTPSA id R0acebw4F7IYYRg (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (curve X9_62_prime256v1 with 256 ECDH bits, eq. 3072 bits RSA)) (Client did not present a certificate); Fri, 15 May 2020 09:18:34 +0200 (CEST) Subject: Re: [PATCH v7 01/12] dt-bindings: add img, pvrsgx.yaml for Imagination GPUs Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: "H. Nikolaus Schaller" In-Reply-To: <08B861A8-D4C2-48A6-9B05-B8CA43312834@goldelico.com> Date: Fri, 15 May 2020 09:18:33 +0200 Message-Id: References: <3a451e360fed84bc40287678b4d6be13821cfbc0.1587760454.git.hns@goldelico.com> <28138EC0-0FA5-4F97-B528-3442BF087C7A@goldelico.com> <3D8B59D6-83E3-4FE6-9C99-E2E5616A8139@goldelico.com> <8EER9Q.C206SXNSICP7@crapouillou.net> <08B861A8-D4C2-48A6-9B05-B8CA43312834@goldelico.com> To: Paul Cercueil , Paul Burton X-Mailer: Apple Mail (2.3124) X-Mailman-Approved-At: Sat, 16 May 2020 09:58:59 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , David Airlie , James Hogan , Jonathan Bakker , "open list:DRM PANEL DRIVERS" , linux-mips@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Discussions about the Letux Kernel , Krzysztof Kozlowski , Tony Lindgren , Chen-Yu Tsai , Kukjin Kim , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , =?iso-8859-1?Q?Beno=EEt_Cousson?= , Rob Herring , linux-omap , arm-soc , Thomas Bogendoerfer , Philipp Rossak , OpenPVRSGX Linux Driver Group , Linux Kernel Mailing List , Ralf Baechle , kernel@pyra-handheld.com Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi Paul & Paul, > Am 03.05.2020 um 18:41 schrieb H. Nikolaus Schaller : > = > Hi Paul and Paul, > = >> Am 03.05.2020 um 16:18 schrieb Paul Cercueil : >> = >> = >> = >> Le dim. 3 mai 2020 =E0 15:31, H. Nikolaus Schaller a= =E9crit : >>> Hi Paul, >>>> Am 03.05.2020 um 14:52 schrieb Paul Cercueil : >>>>>> It's possible to forbid the presence of the 'clocks' property on som= e implementations, and require it on others. >>>>> To be precise we have to specify the exact number of clocks (between = 0 and 4) for every architecture. >>>>> This also contradicts my dream to get rid of the architecture specifi= c components in the long run. My dream (because I can't tell how it can be = done) is that we can one day develop something which just needs compatible = =3D img,530 or imp,540 or img,544. Then we can't make the number clocks dep= end on the implementation any more. >>>> As we said before, the number of clocks is a property of the GPU and *= not* its integration into the SoC. >>> Well, it is a not very well documented property of the GPU. We have no = data sheet of the standalone GPU. Only several SoC data sheets which give s= ome indications. >> = >> Maybe we can nicely ask them? > = > There is some (old) answer here: > = > https://github.com/MIPS/CI20_linux/blob/ci20-v3.18/arch/mips/boot/dts/jz4= 780.dtsi#L63 > = >> I expect Paul Burton to have some contacts at ImgTec. Asking for a doc w= ould be too much, but maybe they can help a bit with the DT bindings. > = > Good idea! It is definitively worth to try. Therefore I have moved him fr= om CC: to To: Do we already have an idea if we can get into contact and get help from Img= Tec for this topic or if we have to live with what we have? BR and thanks, Nikolaus _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel