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[2620:137:e000::3:6]) by mx.google.com with ESMTPS id bt11-20020a056a00438b00b00690cc6f6f38si625180pfb.76.2023.09.19.06.15.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Sep 2023 06:15:18 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) client-ip=2620:137:e000::3:6; Authentication-Results: mx.google.com; dkim=pass header.i=@kernkonzept.com header.s=mx1 header.b=pd76GLmV; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernkonzept.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id 1481081E5564; Tue, 19 Sep 2023 05:01:03 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231151AbjISMAJ (ORCPT + 26 others); Tue, 19 Sep 2023 08:00:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229497AbjISMAF (ORCPT ); Tue, 19 Sep 2023 08:00:05 -0400 Received: from mx.kernkonzept.com (serv1.kernkonzept.com [IPv6:2a01:4f8:1c1c:b490::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 48EEDF2; Tue, 19 Sep 2023 04:59:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kernkonzept.com; s=mx1; h=Cc:To:Content-Transfer-Encoding:Content-Type: MIME-Version:Message-Id:Date:Subject:From:References:In-Reply-To:Reply-To: Content-ID:Content-Description; bh=r3y4yFqUc5uIgQTTYbbXZv7CmCGCkwuSZZhi0rb2wK0=; b=pd76GLmVDxBF1mZweUcfDH4CSH DGa1R/y5nINulcIPDuIvhrDMrULp6ogSh8NLdqIMFP9J8AlsvFlHUJlDzfoqtLgCh+EbjO/MEjT9L L5/vVBWD50WxL+5s4lruIK1MVKtM5RlNxVJ7DlR34rbVak9dfIsWfiwHyq6TCwNjJFLsY8fpbA1tj E60nCsW4KeMSVnRwivOrdLR3RrGsr/7syzPmfbvSV+ofUfocJS/oPDdxsvBLg6F0mt/6ngrvpmFv9 MHiJR2RGhhRHWtHpvmTclUMIRWfrmE0dZ6L0NmbbDRSQXsjOjuZfJqW+b+XOrH0gNUSSMnVJTzOAc yE4QUqdQ==; Received: from [10.22.3.24] (helo=serv1.dd1.int.kernkonzept.com) by mx.kernkonzept.com with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) id 1qiZOT-004b4T-2k; Tue, 19 Sep 2023 13:59:53 +0200 From: Stephan Gerhold Subject: [PATCH v2 0/4] spi: qup: Allow scaling power domains and interconnect Date: Tue, 19 Sep 2023 13:59:47 +0200 Message-Id: <20230919-spi-qup-dvfs-v2-0-1bac2e9ab8db@kernkonzept.com> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIADONCWUC/3XMQQ6CMBCF4auQWTumLTGCK+9hWJQyyITYlhYbl fTuVvYu/5e8b4NIgSnCpdogUOLIzpZQhwrMpO2dkIfSoISqRSsVRs+4PD0OaYx4lqNp9ImE6SW Uiw808mvnbl3piePqwnvXk/ytf6AkUWBNdaO1aI3qh+tMwc7OfsivR+Me0OWcv/JTvQOuAAAA To: Mark Brown Cc: Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Stephan Gerhold , Krzysztof Kozlowski X-Mailer: b4 0.12.3 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Tue, 19 Sep 2023 05:01:03 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777471919856826837 X-GMAIL-MSGID: 1777471919856826837 Make it possible to scale performance states of the power domain and interconnect of the SPI QUP controller in relation to the selected SPI speed / core clock. This is done separately by: - Parsing the OPP table from the device tree for performance state votes of the power domain - Voting for the necessary bandwidth on the interconnect path to DRAM Signed-off-by: Stephan Gerhold --- Changes in v2: - Vote for bandwidth only when DMA is used and not with PIO - Add review tags from Krzysztof and Konrad - Link to v1: https://lore.kernel.org/r/20230912-spi-qup-dvfs-v1-0-3e38aa09c2bd@kernkonzept.com --- Stephan Gerhold (4): spi: dt-bindings: qup: Document power-domains and OPP spi: qup: Parse OPP table for DVFS support spi: dt-bindings: qup: Document interconnects spi: qup: Vote for interconnect bandwidth to DRAM .../devicetree/bindings/spi/qcom,spi-qup.yaml | 13 ++++++ drivers/spi/spi-qup.c | 50 +++++++++++++++++++++- 2 files changed, 62 insertions(+), 1 deletion(-) --- base-commit: baaa2957b0c6feb4ff7806b5d8e0039bd80acbdf change-id: 20230912-spi-qup-dvfs-71fc8a5e0cb1 Best regards,