From patchwork Sun Jul 2 17:42:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 13299299 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 B6B27C05051 for ; Sun, 2 Jul 2023 17:43:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229913AbjGBRnS (ORCPT ); Sun, 2 Jul 2023 13:43:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229954AbjGBRm6 (ORCPT ); Sun, 2 Jul 2023 13:42:58 -0400 Received: from mail-lj1-x231.google.com (mail-lj1-x231.google.com [IPv6:2a00:1450:4864:20::231]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 707BCE6E for ; Sun, 2 Jul 2023 10:42:55 -0700 (PDT) Received: by mail-lj1-x231.google.com with SMTP id 38308e7fff4ca-2b6b98ac328so54316421fa.0 for ; Sun, 02 Jul 2023 10:42:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1688319773; x=1690911773; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=39CekJt2bg+dTnou8ZXeVeRak2YiAVNMpxW8X6GTBtU=; b=SYaLI0sRwYzEXv1YOqBHrHz5jHOXzvMDYIVWjpHumY8xNxwg0rESkWXjs+1bpBsm5w MFWPKjo8CIPTQKu9SvQWOHi7Kn9tAbgyoZGU84T/BnlSV3Ya1s+QlJ1pVXS+LzYQPNwC 0YoXdi/P+8ry5sxfcmSJyv8LjPrRUIwp3m3ztRWCm7dl/jWS3Ql1SQfxxw+QFnXeV4tX hTDtELrxeP005G1EX3Owk4nJlswwruLGXGFGbtkyRUOqJT2QXKX/Op+kMQGT9OJr5alE KOJounmL+Kbo89ffdRzP6sksOEHTMRwjYoTnkVoprhqwU+h255kvWI4Qmurl+j6okOX7 A15w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688319773; x=1690911773; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=39CekJt2bg+dTnou8ZXeVeRak2YiAVNMpxW8X6GTBtU=; b=XD2RyRXWVjLp/DlKfmxbZnTmBNhah9mlHSS1U01GqFZd1qgIs/UdXVJQ0QcnW8REk9 327AmA8b1gmqVVgkvNs51RmFvDECr6KBVtOYIjHikgtTArTATIGQSD6XBsceP4BpZdt8 J/qi0FfcIrxIfCo7jBn8RMzmBop6qNq/mZxcBAuaMwv/fJhjQHIPxfVFpA+SaIPedz9c MB96JdMcwDleQlfm3jJguw0OBt4E23bB4knLqRORYCfwRwAY2sP327TlVABmNmzfnH7H vEnqQIOjfXFT5AjbFO/BxoMCYPBY4cMX3uQCcblUx3CniHK5Pg+z5R3eUZ939BCUTQC0 +1Dw== X-Gm-Message-State: ABy/qLaoo6iJRFjZbLYwbBefsixNBrrZYixlqoxqst+FD85oWpdRNszT IxFzo/7YtvYdDY8o6yIsQl03pw== X-Google-Smtp-Source: APBJJlFns2ZlWmvV1ijFsjEvZawVgLE8JsepTypFQwk9MsQcbGqyIUh1LeVAE9vplaO3AyKKCEcGlA== X-Received: by 2002:a2e:800b:0:b0:2b4:7380:230 with SMTP id j11-20020a2e800b000000b002b473800230mr5268977ljg.13.1688319773490; Sun, 02 Jul 2023 10:42:53 -0700 (PDT) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id v23-20020a2e9917000000b002b6daa3fa2csm1372550lji.69.2023.07.02.10.42.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 02 Jul 2023 10:42:52 -0700 (PDT) From: Dmitry Baryshkov To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Gross , Bjorn Andersson , Konrad Dybcio , Ilia Lin , Viresh Kumar , Nishanth Menon , Stephen Boyd , Michael Turquette , "Rafael J. Wysocki" , Georgi Djakov Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, Christian Marangi , Stephan Gerhold Subject: [PATCH v3 06/28] interconnect: icc-clk: add support for scaling using OPP Date: Sun, 2 Jul 2023 20:42:24 +0300 Message-Id: <20230702174246.121656-7-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230702174246.121656-1-dmitry.baryshkov@linaro.org> References: <20230702174246.121656-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Sometimes it might be required to scale the clock using the OPP framework (e.g. to scale regulators following the required clock rate). Extend the interconnec-clk framework to handle OPP case in addition to scaling the clock. Signed-off-by: Dmitry Baryshkov Reviewed-by: Konrad Dybcio --- drivers/interconnect/icc-clk.c | 13 +++++++++++-- include/linux/interconnect-clk.h | 1 + 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/interconnect/icc-clk.c b/drivers/interconnect/icc-clk.c index 4d43ebff4257..c7962acdcee7 100644 --- a/drivers/interconnect/icc-clk.c +++ b/drivers/interconnect/icc-clk.c @@ -7,10 +7,13 @@ #include #include #include +#include struct icc_clk_node { + struct device *dev; struct clk *clk; bool enabled; + bool opp; }; struct icc_clk_provider { @@ -25,12 +28,16 @@ struct icc_clk_provider { static int icc_clk_set(struct icc_node *src, struct icc_node *dst) { struct icc_clk_node *qn = src->data; + unsigned long rate = icc_units_to_bps(src->peak_bw); int ret; if (!qn || !qn->clk) return 0; - if (!src->peak_bw) { + if (qn->opp) + return dev_pm_opp_set_rate(qn->dev, rate); + + if (!rate) { if (qn->enabled) clk_disable_unprepare(qn->clk); qn->enabled = false; @@ -45,7 +52,7 @@ static int icc_clk_set(struct icc_node *src, struct icc_node *dst) qn->enabled = true; } - return clk_set_rate(qn->clk, icc_units_to_bps(src->peak_bw)); + return clk_set_rate(qn->clk, rate); } static int icc_clk_get_bw(struct icc_node *node, u32 *avg, u32 *peak) @@ -106,7 +113,9 @@ struct icc_provider *icc_clk_register(struct device *dev, icc_provider_init(provider); for (i = 0, j = 0; i < num_clocks; i++) { + qp->clocks[i].dev = dev; qp->clocks[i].clk = data[i].clk; + qp->clocks[i].opp = data[i].opp; node = icc_node_create(first_id + j); if (IS_ERR(node)) { diff --git a/include/linux/interconnect-clk.h b/include/linux/interconnect-clk.h index 0cd80112bea5..c695e5099901 100644 --- a/include/linux/interconnect-clk.h +++ b/include/linux/interconnect-clk.h @@ -11,6 +11,7 @@ struct device; struct icc_clk_data { struct clk *clk; const char *name; + bool opp; }; struct icc_provider *icc_clk_register(struct device *dev,