From patchwork Sat Dec 11 02:17:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 1566777 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=anAS2Aff; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4J9rzB2QKHz9t4b for ; Sat, 11 Dec 2021 13:18:14 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240857AbhLKCVr (ORCPT ); Fri, 10 Dec 2021 21:21:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52092 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238399AbhLKCVp (ORCPT ); Fri, 10 Dec 2021 21:21:45 -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 48525C061A72 for ; Fri, 10 Dec 2021 18:18:09 -0800 (PST) Received: by mail-lf1-x132.google.com with SMTP id l22so21168213lfg.7 for ; Fri, 10 Dec 2021 18:18:09 -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=L4pIImixrdWMTKaYWRmzrWP1bf+OcXW6Av2PMVI53nk=; b=anAS2AffHvkqcz593MNMYdZcymv3KcdnEyExrvaDx8vZDiyDTkHFUXLGBP4fv6ezj9 FQtU/AV2zpBwCAHBnXXBLKaoXVRuy8k4uL+qq/fnkYz/bX9UgEsPCxRr7wujIHx48Lyo oh1N3fzssZ6LJ+coDhBCYpjYL0MxgrMUP3PavpQ9aNfu22nIGfJHqQEgsSsQKixPCiKB 26vg2ffozvYb1Ysc84Wd0kaUIwmMyWBXw8iyXxw42qrQyIT39tgjidPR08A1peVSYUIl fA/PolXO8svkyzZDIQSdjMskf9UJ+o4ycxY+OqIHb8rshUiMKPm/OBQfdlmKYfyZuOGs 2h4g== 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=L4pIImixrdWMTKaYWRmzrWP1bf+OcXW6Av2PMVI53nk=; b=LvGbVWEyBu1nuASdlh7eqW12Dz/rw2uT8BfXxyRen/R4ApvdWFz2/fLMjEwssz9JZR 8VcvcvE/qTidfpxG1zm2TSC0N5W2AbPHpOCaNWoo24pNv87YtnHpaEds0n5/hpfh63iA MKKBBExUPuhvm/YV87o4yp4kHXgJjwt4ocOk6ucuQeGL65joS69HBWTUqwAobt8dSKLI JNNzp4am2dCZggTgXKsbS3lBJyRsk/L3lWvGUgvQXHSRWVHdv4jZP/tguAvWOnBiMheR R4X4SOoZqyULzcl2b7FdLPpNCVz3/qUrwmmhQ9/EciB+Y3e8dwJgdr+8fUMjyocVmce3 NSiw== X-Gm-Message-State: AOAM533TLd0PiIwqVx4YDuoKHRYG0WM/8hxeVfH0jrvz4OPtP+oVTKdB spsW/oJ44V9kwf+v6X0e2i6yVQ== X-Google-Smtp-Source: ABdhPJzEjDYrJWa/xhu240z4ZgBNcYSqY9o3we0Jxy7AeW7wyDx9Pl4xJLyBGMsyUQqMo9fyJrLK3Q== X-Received: by 2002:a19:6752:: with SMTP id e18mr15688396lfj.195.1639189087537; Fri, 10 Dec 2021 18:18:07 -0800 (PST) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id y7sm504663lfj.90.2021.12.10.18.18.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Dec 2021 18:18:07 -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 v3 06/10] PCI: qcom: Add SM8450 PCIe support Date: Sat, 11 Dec 2021 05:17:54 +0300 Message-Id: <20211211021758.1712299-7-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211211021758.1712299-1-dmitry.baryshkov@linaro.org> References: <20211211021758.1712299-1-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 | 47 +++++++++++++++++++------- 1 file changed, 34 insertions(+), 13 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 2f9a9497733e..d129729bb2a6 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; @@ -195,7 +195,10 @@ struct qcom_pcie_ops { struct qcom_pcie_cfg { const struct qcom_pcie_ops *ops; 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 { @@ -1146,6 +1149,7 @@ 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"); @@ -1159,18 +1163,22 @@ 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) @@ -1509,15 +1517,27 @@ 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 sc7280_cfg = { .ops = &ops_1_9_0, + .has_tbu_clk = true, .pipe_clk_need_muxing = true, }; @@ -1625,6 +1645,7 @@ 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-sc7280", .data = &sc7280_cfg }, { } };