From patchwork Thu Dec 2 14:17:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 12652665 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com 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 2A4AAC4332F for ; Thu, 2 Dec 2021 14:18:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1358503AbhLBOVl (ORCPT ); Thu, 2 Dec 2021 09:21:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358476AbhLBOV0 (ORCPT ); Thu, 2 Dec 2021 09:21:26 -0500 Received: from mail-lf1-x132.google.com (mail-lf1-x132.google.com [IPv6:2a00:1450:4864:20::132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 771E6C0613FD for ; Thu, 2 Dec 2021 06:17:39 -0800 (PST) Received: by mail-lf1-x132.google.com with SMTP id f18so71865368lfv.6 for ; Thu, 02 Dec 2021 06:17:39 -0800 (PST) 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=IbALx0XtFk2sjvQW/onR8vjjNDCw+IRJE2J+CI3Jr4A=; b=vM26FWhP8DucGhwTCLKaf82GBXq5cI5vaDZXMCAv4rJO09qMGy9cMX0kNbBE89QdBT sjuzWiafQqWSB6H9pV7rkEzdgEoTEFG5e5jY+YP3t/quv2sUSskrt3rEedYfaSBQi1CL +6hdRADfEWgyk9JgMzmov82TBERRFB5CjZXK0NZ0jh5EEmw7c8rTAAi0p9Ac0UlrHOmK 7hdN6enwb5o2tp4ZJEJ5J9ZHLVF4c4l3yxZJj38TrcWInvzXgbDfFWRATtz2w1Xz7jOD gxxqGU81BXsCn55+7qTkwcfq2NAJWJ1hrQRQI93L+aVklmFuSJjjBtBJYvEM1YNYmM6+ kQZA== 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=IbALx0XtFk2sjvQW/onR8vjjNDCw+IRJE2J+CI3Jr4A=; b=3HuosadwXXbDjhi8KP6hbZpuBKMfBlq7237UWAGrpim9d4J+swU78xiq1xJ7hMvURP NcqCNSp9PtlT9xWK42gs22fJGfnak61z5kWGa/QYXtGzAFOcExTAwsOHDwjHXIHYyQZu I9l0o2U5hq0MmVTUH17B62RGYGNFi4w9ZqINmNkxdQDbg1giK686PZwWt2adgW18EG6H nTLK2WZejRf2TBpm2OxaYlzDhHitj7DMC/kzpxkC1cXSQGSJmWmhwhbON9NT8iyT4mUC VKr0eF0D/qTGiDm0OlvKOhJGD3DFrI0n66Z+3piJKl/XFUvfEyr5y+P7HfzBrxiOh3vm JOmA== X-Gm-Message-State: AOAM531D2votz4euAkCjTCWc9oHJ4nXb/mO/LbpJXvJ2kskfAs/9csD5 xcQlHc1frTogzqMi0L9mSOaKxA== X-Google-Smtp-Source: ABdhPJw3etiuLd70f0wo0mSda+F/5iX6ZiPl+cMc4WJpWS2999HymXOa7d0BTghIapMyYdzdUGAsoA== X-Received: by 2002:a05:6512:2314:: with SMTP id o20mr12067407lfu.51.1638454657683; Thu, 02 Dec 2021 06:17:37 -0800 (PST) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id m15sm362487lfg.165.2021.12.02.06.17.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 06:17:36 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Rob Herring , Vinod Koul , Kishon Vijay Abraham I , Stanimir Varbanov , Lorenzo Pieralisi Cc: Bjorn Helgaas , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-phy@lists.infradead.org Subject: [PATCH v1 06/10] PCI: qcom: add support for SM8450 PCIe controllers Date: Thu, 2 Dec 2021 17:17:22 +0300 Message-Id: <20211202141726.1796793-7-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211202141726.1796793-1-dmitry.baryshkov@linaro.org> References: <20211202141726.1796793-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On SM8450 platform PCIe hosts do not use all the clocks (and add several additional clocks), so expand the driver to handle these requirements. Signed-off-by: Dmitry Baryshkov --- drivers/pci/controller/dwc/pcie-qcom.c | 56 ++++++++++++++++++++------ 1 file changed, 43 insertions(+), 13 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index e51b313da46f..8865215b0b5c 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -161,7 +161,7 @@ struct qcom_pcie_resources_2_3_3 { /* 6 clocks typically, 7 for sm8250 */ struct qcom_pcie_resources_2_7_0 { - struct clk_bulk_data clks[7]; + struct clk_bulk_data clks[9]; int num_clks; struct regulator_bulk_data supplies[2]; struct reset_control *pci_reset; @@ -196,7 +196,10 @@ struct qcom_pcie_cfg { const struct qcom_pcie_ops *ops; /* flags for ops 2.7.0 and 1.9.0 */ unsigned int pipe_clk_need_muxing:1; + unsigned int has_tbu_clk:1; unsigned int has_ddrss_sf_tbu_clk:1; + unsigned int has_aggre0_clk:1; + unsigned int has_aggre1_clk:1; }; struct qcom_pcie { @@ -1147,6 +1150,7 @@ static int qcom_pcie_get_resources_2_7_0(struct qcom_pcie *pcie) struct qcom_pcie_resources_2_7_0 *res = &pcie->res.v2_7_0; struct dw_pcie *pci = pcie->pci; struct device *dev = pci->dev; + unsigned int idx; int ret; res->pci_reset = devm_reset_control_get_exclusive(dev, "pci"); @@ -1160,18 +1164,22 @@ static int qcom_pcie_get_resources_2_7_0(struct qcom_pcie *pcie) if (ret) return ret; - res->clks[0].id = "aux"; - res->clks[1].id = "cfg"; - res->clks[2].id = "bus_master"; - res->clks[3].id = "bus_slave"; - res->clks[4].id = "slave_q2a"; - res->clks[5].id = "tbu"; - if (pcie->cfg.has_ddrss_sf_tbu_clk) { - res->clks[6].id = "ddrss_sf_tbu"; - res->num_clks = 7; - } else { - res->num_clks = 6; - } + idx = 0; + res->clks[idx++].id = "aux"; + res->clks[idx++].id = "cfg"; + res->clks[idx++].id = "bus_master"; + res->clks[idx++].id = "bus_slave"; + res->clks[idx++].id = "slave_q2a"; + if (pcie->cfg.has_tbu_clk) + res->clks[idx++].id = "tbu"; + if (pcie->cfg.has_ddrss_sf_tbu_clk) + res->clks[idx++].id = "ddrss_sf_tbu"; + if (pcie->cfg.has_aggre0_clk) + res->clks[idx++].id = "aggre0"; + if (pcie->cfg.has_aggre1_clk) + res->clks[idx++].id = "aggre1"; + + res->num_clks = idx; ret = devm_clk_bulk_get(dev, res->num_clks, res->clks); if (ret < 0) @@ -1513,15 +1521,35 @@ static const struct qcom_pcie_cfg ipq4019_cfg = { static const struct qcom_pcie_cfg sdm845_cfg = { .ops = &ops_2_7_0, + .has_tbu_clk = true, }; static const struct qcom_pcie_cfg sm8250_cfg = { + .ops = &ops_1_9_0, + .has_tbu_clk = true, + .has_ddrss_sf_tbu_clk = true, +}; + +/* Only for the PCIe0! */ +static const struct qcom_pcie_cfg sm8450_cfg = { .ops = &ops_1_9_0, .has_ddrss_sf_tbu_clk = true, + .pipe_clk_need_muxing = true, + .has_aggre0_clk = true, + .has_aggre1_clk = true, +}; + +static const struct qcom_pcie_cfg sm8450_pcie1_cfg = { + .ops = &ops_1_9_0, + .has_ddrss_sf_tbu_clk = true, + .pipe_clk_need_muxing = true, + /* .has_aggre0_clk = false, */ + .has_aggre1_clk = true, }; static const struct qcom_pcie_cfg sc7280_cfg = { .ops = &ops_1_9_0, + .has_tbu_clk = true, .pipe_clk_need_muxing = true, }; @@ -1632,6 +1660,8 @@ static const struct of_device_id qcom_pcie_match[] = { { .compatible = "qcom,pcie-sdm845", .data = &sdm845_cfg }, { .compatible = "qcom,pcie-sm8250", .data = &sm8250_cfg }, { .compatible = "qcom,pcie-sc8180x", .data = &sm8250_cfg }, + { .compatible = "qcom,pcie-sm8450", .data = &sm8450_cfg }, + { .compatible = "qcom,pcie-sm8450-pcie1", .data = &sm8450_pcie1_cfg }, { .compatible = "qcom,pcie-sc7280", .data = &sc7280_cfg }, { } };