From patchwork Sat Apr 16 03:10:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leo Yan X-Patchwork-Id: 563803 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 6ECACC433FE for ; Sat, 16 Apr 2022 03:10:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229965AbiDPDNT (ORCPT ); Fri, 15 Apr 2022 23:13:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229969AbiDPDNS (ORCPT ); Fri, 15 Apr 2022 23:13:18 -0400 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EDB9F11BE75 for ; Fri, 15 Apr 2022 20:10:46 -0700 (PDT) Received: by mail-pj1-x1030.google.com with SMTP id s14-20020a17090a880e00b001caaf6d3dd1so13063631pjn.3 for ; Fri, 15 Apr 2022 20:10:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ifMOAfHLNN7DfaZZqh9MgNejy76ce9ngnv0s3Ahi1Mg=; b=ggfdvgfSjlld23cULp92DrBodIrBWoYraPLq+y0nf51pyOxV23MK6HA7k5KLqVjHAP 1gzmHtMPYeMczmgRqby0gDpH5lF3PAz8JPHRsoomma1Ky3zqd9eZPikkyfAr2nTarEg9 nc1/8HoiQ4pjnGisNsqivEqysPJ9wsW1KpUa1cbS+q2LM47CAaODl2A7NIQIobEhO/vt eBXhr67bSojdbdKfwVwKfTWS4g9la8y3nvex8LJ1VGVZXjXCRzl4Jh0ZoVUpkYoUQbE9 LJP9hfLwdADTNt+gqBb6ovzSJuLRxX/tsKh44dVugIRf89D9jNrYTygA2GqcUc9whaN0 97Dg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ifMOAfHLNN7DfaZZqh9MgNejy76ce9ngnv0s3Ahi1Mg=; b=LEADgPN4dsBHv/jaWeJ3NAbyVTHQ1smbQorN8QDv5055a4MqS0M6NwPNCJRI2e8Zeh RRXCvpsGm3RWpv/NGfyyVapMuwcG7zSXO9QD11XDDXLTB34ggfeF6U02oJMnWQQcC7YM +hufp9Cs7yHk4I2AaA2Gzb73nteJBHQyd4xD4DxeiRDFrYFdntV2JUub2ZLAB5rNmYr8 77h0i8WTg+C7QBgPl764IrqWTIT2VweUsNTnROw6RCIrPUMnTiljFyEgOpWE22mD5CFu FQcmDKFfyvC+bmYHKpG6H1Kh8DqE+RIP53+8UTGaKSAUqaqFBb/UOS01CHtWuZmAmDzM tRXw== X-Gm-Message-State: AOAM530dTFzkPatQwnr0dUC/jK4HDpmSrLei4+rU9aCXTwKaLXbJDKwG QamHipROyunSvegx+rN5HEDMtw== X-Google-Smtp-Source: ABdhPJzNYBTinusU0OgY+Velu6hlMRdEzPZKTz9Hw5w+nSmt9+1pZS1W+li8ZfZzaqFPQxNZwKU8cQ== X-Received: by 2002:a17:902:8347:b0:158:9224:1a80 with SMTP id z7-20020a170902834700b0015892241a80mr1919291pln.23.1650078646345; Fri, 15 Apr 2022 20:10:46 -0700 (PDT) Received: from localhost.localdomain ([134.195.101.46]) by smtp.gmail.com with ESMTPSA id f33-20020a631021000000b0039dbae3fce0sm5719120pgl.43.2022.04.15.20.10.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Apr 2022 20:10:45 -0700 (PDT) From: Leo Yan To: Andy Gross , Bjorn Andersson , Georgi Djakov , Bryan O'Donoghue , Dmitry Baryshkov , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Leo Yan Subject: [PATCH v1 2/2] interconnect: qcom: icc-rpm: Cache every clock rate Date: Sat, 16 Apr 2022 11:10:29 +0800 Message-Id: <20220416031029.693211-3-leo.yan@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220416031029.693211-1-leo.yan@linaro.org> References: <20220416031029.693211-1-leo.yan@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The cached clock rate is used for all bus clocks, thus it has the assumption that all interconnect clock rates are always same, this causes trouble if we want to set different clock rates separately. This patch is to allocate a clock rate array to cache every clock rate. Signed-off-by: Leo Yan --- drivers/interconnect/qcom/icc-rpm.c | 14 +++++++++----- drivers/interconnect/qcom/icc-rpm.h | 2 +- 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c index e0309e246523..45d23aaeabf6 100644 --- a/drivers/interconnect/qcom/icc-rpm.c +++ b/drivers/interconnect/qcom/icc-rpm.c @@ -274,20 +274,19 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) do_div(rate, qn->buswidth); rate = min_t(u64, rate, LONG_MAX); - if (qp->bus_clk_rate == rate) - return 0; - for (i = 0; i < qp->num_clks; i++) { + if (qp->bus_clk_rate[i] == rate) + continue; + ret = clk_set_rate(qp->bus_clks[i].clk, rate); if (ret) { pr_err("%s clk_set_rate error: %d\n", qp->bus_clks[i].id, ret); return ret; } + qp->bus_clk_rate[i] = rate; } - qp->bus_clk_rate = rate; - return 0; } @@ -332,6 +331,11 @@ int qnoc_probe(struct platform_device *pdev) if (!qp) return -ENOMEM; + qp->bus_clk_rate = devm_kcalloc(dev, cd_num, sizeof(*qp->bus_clk_rate), + GFP_KERNEL); + if (!qp->bus_clk_rate) + return -ENOMEM; + data = devm_kzalloc(dev, struct_size(data, nodes, num_nodes), GFP_KERNEL); if (!data) diff --git a/drivers/interconnect/qcom/icc-rpm.h b/drivers/interconnect/qcom/icc-rpm.h index 4457fcc5b84c..f6c4ac960102 100644 --- a/drivers/interconnect/qcom/icc-rpm.h +++ b/drivers/interconnect/qcom/icc-rpm.h @@ -34,7 +34,7 @@ struct qcom_icc_provider { enum qcom_icc_type type; struct regmap *regmap; unsigned int qos_offset; - u64 bus_clk_rate; + u64 *bus_clk_rate; struct clk_bulk_data bus_clks[]; };