From patchwork Thu Mar 16 08:11:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 664203 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 D2674C7618B for ; Thu, 16 Mar 2023 08:13:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230144AbjCPINA (ORCPT ); Thu, 16 Mar 2023 04:13:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230520AbjCPIMo (ORCPT ); Thu, 16 Mar 2023 04:12:44 -0400 Received: from mail-pg1-x52a.google.com (mail-pg1-x52a.google.com [IPv6:2607:f8b0:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77EB0B53D2 for ; Thu, 16 Mar 2023 01:12:15 -0700 (PDT) Received: by mail-pg1-x52a.google.com with SMTP id t83so427300pgb.11 for ; Thu, 16 Mar 2023 01:12:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1678954331; 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=r9vxKPIVNmDNAqySgyp8kTdcYwkHx3OlBixoon/6mBU=; b=HGzZV9hM+4cH4+QBrL4zh16SjknBRctPOus5qpq60nka7/MmD3aUwCU5SGBsmsbAoZ bu3D5DvG+vu1Y4f0M9RmKDFSVjAAcq4/nhvZ77BurNXhOhvs48rjBXfpVxrWmxiDlsxY 4s0D5YeP7VTgOJRyEhsPKijP2kxDEw6NWbD5ciL1jdhNLR9meqsVti8VUj3BTbEBowj+ S+NDJ3Vuz6s+SIM8WiNSIxakONkBcYwwqGSYW1YAnasdlqCcq8IM/ZSXkyWdY7LyLJXF CHY4MtJPSlhmJjfNx4PrLo0vbcKbWc/nxG3yTy0cMgJZ8ezj2YZIGwwNEGGbOgjRtQIX 3WTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678954331; 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=r9vxKPIVNmDNAqySgyp8kTdcYwkHx3OlBixoon/6mBU=; b=m3QmvF2hBeJICyPdkuoqwDwwWmd5/cRHn4wx4PFgTt8MAazoK5RPI1ij+J2r0jG30p GN525TOdq0EZLVN+vG0XCaw6vnSUk6nAs1Rlii2m4ADiCu0QIG02r4Cx/8Mfjy3iO9Uu eRo3OelfxBH+tLlaOWdlZRqP6Ncb8vuE4KhWXmdwfY6gx3QogxcCAFOUZlVzE2vvgodh y1tyZZgctzR+fIxi1kMKi1P5SPTrQmJS+hidG/8QdFnBJ+f1uTX9pN1NDfgTaXSpdnRF J8ifPlsLfFkUAD5ftYqBQMGKir0NYkJJ39xfCNx3CQvJKHggXuXhVybFTy4L/4E/RYXX Xs+g== X-Gm-Message-State: AO0yUKXTRqDqY03220N0fL1m378ivDTNvUCgY4k6AC4iIfLvIV9jMZS0 RcCKpeWAZx+Lsrkjif6cwQhe X-Google-Smtp-Source: AK7set8ieLA0GEH2HejciUA7YbQTwk5c/3FbYaebZTTGyhxGrvAlSO+Oo3xraIDSEbF6HvjRcP3Lcg== X-Received: by 2002:a62:520f:0:b0:5cd:d766:8a2b with SMTP id g15-20020a62520f000000b005cdd7668a2bmr1947462pfb.6.1678954331228; Thu, 16 Mar 2023 01:12:11 -0700 (PDT) Received: from localhost.localdomain ([117.207.30.24]) by smtp.gmail.com with ESMTPSA id 13-20020aa7910d000000b005d9984a947bsm4804422pfh.139.2023.03.16.01.12.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Mar 2023 01:12:10 -0700 (PDT) From: Manivannan Sadhasivam To: andersson@kernel.org, lpieralisi@kernel.org, kw@linux.com, krzysztof.kozlowski+dt@linaro.org, robh@kernel.org Cc: konrad.dybcio@linaro.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, quic_srichara@quicinc.com, Manivannan Sadhasivam Subject: [PATCH v5 09/19] PCI: qcom: Use bulk clock APIs for handling clocks for IP rev 2.3.2 Date: Thu, 16 Mar 2023 13:41:07 +0530 Message-Id: <20230316081117.14288-10-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230316081117.14288-1-manivannan.sadhasivam@linaro.org> References: <20230316081117.14288-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org All the clocks are enabled and disabled at the same time. So the bulk clock APIs can be used to handle them together. This simplifies the code a lot. Signed-off-by: Manivannan Sadhasivam --- drivers/pci/controller/dwc/pcie-qcom.c | 72 ++++++-------------------- 1 file changed, 15 insertions(+), 57 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 14373d591ed1..0d0d87743cec 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -162,12 +162,10 @@ struct qcom_pcie_resources_2_1_0 { struct regulator_bulk_data supplies[QCOM_PCIE_2_1_0_MAX_SUPPLY]; }; -#define QCOM_PCIE_2_3_2_MAX_SUPPLY 2 +#define QCOM_PCIE_2_3_2_MAX_CLOCKS 4 +#define QCOM_PCIE_2_3_2_MAX_SUPPLY 2 struct qcom_pcie_resources_2_3_2 { - struct clk *aux_clk; - struct clk *master_clk; - struct clk *slave_clk; - struct clk *cfg_clk; + struct clk_bulk_data clks[QCOM_PCIE_2_3_2_MAX_CLOCKS]; struct regulator_bulk_data supplies[QCOM_PCIE_2_3_2_MAX_SUPPLY]; }; @@ -539,21 +537,14 @@ static int qcom_pcie_get_resources_2_3_2(struct qcom_pcie *pcie) if (ret) return ret; - res->aux_clk = devm_clk_get(dev, "aux"); - if (IS_ERR(res->aux_clk)) - return PTR_ERR(res->aux_clk); - - res->cfg_clk = devm_clk_get(dev, "cfg"); - if (IS_ERR(res->cfg_clk)) - return PTR_ERR(res->cfg_clk); - - res->master_clk = devm_clk_get(dev, "bus_master"); - if (IS_ERR(res->master_clk)) - return PTR_ERR(res->master_clk); + res->clks[0].id = "aux"; + res->clks[1].id = "cfg"; + res->clks[2].id = "bus_master"; + res->clks[3].id = "bus_slave"; - res->slave_clk = devm_clk_get(dev, "bus_slave"); - if (IS_ERR(res->slave_clk)) - return PTR_ERR(res->slave_clk); + ret = devm_clk_bulk_get(dev, ARRAY_SIZE(res->clks), res->clks); + if (ret < 0) + return ret; return 0; } @@ -562,11 +553,7 @@ static void qcom_pcie_deinit_2_3_2(struct qcom_pcie *pcie) { struct qcom_pcie_resources_2_3_2 *res = &pcie->res.v2_3_2; - clk_disable_unprepare(res->slave_clk); - clk_disable_unprepare(res->master_clk); - clk_disable_unprepare(res->cfg_clk); - clk_disable_unprepare(res->aux_clk); - + clk_bulk_disable_unprepare(ARRAY_SIZE(res->clks), res->clks); regulator_bulk_disable(ARRAY_SIZE(res->supplies), res->supplies); } @@ -583,43 +570,14 @@ static int qcom_pcie_init_2_3_2(struct qcom_pcie *pcie) return ret; } - ret = clk_prepare_enable(res->aux_clk); - if (ret) { - dev_err(dev, "cannot prepare/enable aux clock\n"); - goto err_aux_clk; - } - - ret = clk_prepare_enable(res->cfg_clk); - if (ret) { - dev_err(dev, "cannot prepare/enable cfg clock\n"); - goto err_cfg_clk; - } - - ret = clk_prepare_enable(res->master_clk); - if (ret) { - dev_err(dev, "cannot prepare/enable master clock\n"); - goto err_master_clk; - } - - ret = clk_prepare_enable(res->slave_clk); + ret = clk_bulk_prepare_enable(ARRAY_SIZE(res->clks), res->clks); if (ret) { - dev_err(dev, "cannot prepare/enable slave clock\n"); - goto err_slave_clk; + dev_err(dev, "cannot prepare/enable clocks\n"); + regulator_bulk_disable(ARRAY_SIZE(res->supplies), res->supplies); + return ret; } return 0; - -err_slave_clk: - clk_disable_unprepare(res->master_clk); -err_master_clk: - clk_disable_unprepare(res->cfg_clk); -err_cfg_clk: - clk_disable_unprepare(res->aux_clk); - -err_aux_clk: - regulator_bulk_disable(ARRAY_SIZE(res->supplies), res->supplies); - - return ret; } static int qcom_pcie_post_init_2_3_2(struct qcom_pcie *pcie)