From patchwork Fri Apr 22 07:52:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UmV4LUJDIENoZW4gKOmZs+afj+i+sCk=?= X-Patchwork-Id: 565170 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D0B7C433F5 for ; Fri, 22 Apr 2022 07:53:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1445115AbiDVHzy (ORCPT ); Fri, 22 Apr 2022 03:55:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35354 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1445088AbiDVHzw (ORCPT ); Fri, 22 Apr 2022 03:55:52 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3533451E4B; Fri, 22 Apr 2022 00:52:55 -0700 (PDT) X-UUID: 3ba21b3acd5145b5a10302098e5f8919-20220422 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.4, REQID:6d813e6d-823f-4f76-bc72-4dc86804444f, OB:0, LO B:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACTI ON:release,TS:0 X-CID-META: VersionHash:faefae9, CLOUDID:564fc1ef-06b0-4305-bfbf-554bfc9d151a, C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,File:nil,QS:0,BEC:nil X-UUID: 3ba21b3acd5145b5a10302098e5f8919-20220422 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1387224327; Fri, 22 Apr 2022 15:52:45 +0800 Received: from mtkexhb02.mediatek.inc (172.21.101.103) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Fri, 22 Apr 2022 15:52:44 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkexhb02.mediatek.inc (172.21.101.103) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 22 Apr 2022 15:52:42 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 22 Apr 2022 15:52:42 +0800 From: Rex-BC Chen To: , , , , CC: , , , , , , , , , , , Rex-BC Chen Subject: [PATCH V4 01/14] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property Date: Fri, 22 Apr 2022 15:52:26 +0800 Message-ID: <20220422075239.16437-2-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220422075239.16437-1-rex-bc.chen@mediatek.com> References: <20220422075239.16437-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org MediaTek Cache Coherent Interconnect (CCI) uses software devfreq module for scaling clock frequency and adjust voltage. The phandle could be linked between CPU and MediaTek CCI for some MediaTek SoCs, like MT8183 and MT8186. Therefore, we add this property in cpufreq-mediatek.txt. Signed-off-by: Rex-BC Chen --- .../devicetree/bindings/cpufreq/cpufreq-mediatek.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt index b8233ec91d3d..3387e1e2a2df 100644 --- a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt @@ -20,6 +20,11 @@ Optional properties: Vsram to fit SoC specific needs. When absent, the voltage scaling flow is handled by hardware, hence no software "voltage tracking" is needed. +- mediatek,cci: + MediaTek Cache Coherent Interconnect (CCI) uses the software devfreq module to + scale the clock frequency and adjust the voltage. + For details, please refer to + Documentation/devicetree/bindings/interconnect/mediatek,cci.yaml - #cooling-cells: For details, please refer to Documentation/devicetree/bindings/thermal/thermal-cooling-devices.yaml