From patchwork Thu Dec 31 12:37:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 1421558 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org 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=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: 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=sj9tK+BS; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4D674S5j6Sz9sSC for ; Thu, 31 Dec 2020 23:38:48 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726596AbgLaMiZ (ORCPT ); Thu, 31 Dec 2020 07:38:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59080 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726563AbgLaMiY (ORCPT ); Thu, 31 Dec 2020 07:38:24 -0500 Received: from mail-lf1-x133.google.com (mail-lf1-x133.google.com [IPv6:2a00:1450:4864:20::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 364E3C061799 for ; Thu, 31 Dec 2020 04:37:44 -0800 (PST) Received: by mail-lf1-x133.google.com with SMTP id o19so43877061lfo.1 for ; Thu, 31 Dec 2020 04:37:44 -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=HaBccR5ybXZm1ZGk3nqecCV5+MAmIR/4lQjnxQMdJM8=; b=sj9tK+BSzEiPT+hgbEfxVpk7REc70wu2vhzVW6DjAgjnTCokycgncsXUKIGA/SrQz6 LlOdEryv0OeEnv58xeehdYfE9j0t3ibQSmiX8nvmQk9n5iL/n000BsID6ovh84Oe6rVM B3asbJ1/Cyi2L1iiFYptK8ubQ8Vxv388s67PqGWGgg51cb5WRkPQ0D63w2jpiT3tRiFU afDgurc0h0FvLY5t+WD+OJA0JWtF/uKGhIwo3SucNExXptCK37LEqSIRh/jQgZ76t8R5 H2EC6Y3tVl/WIH9IwMp9ct1EL+oNg/C33vpMtzHTeuoSQRBhM4VygJ7HTQzfQfm8CmeA h+LQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=HaBccR5ybXZm1ZGk3nqecCV5+MAmIR/4lQjnxQMdJM8=; b=nc+27G+Hms6hZ/6yCCp/FZoNwdC4qjWiIoZeJbU/MX38vBZfYtG1mRIboEnOj444SH YilxcGM9p0yYXjPGYIMnon4+4ywIy/aU66Jt0SX8hycmmn12NKSG/TYAefiBB4D5aP3u 5LsVgvzmmLPW39txXnl03UaOmTjYBffSbmd45kgx2sCT3QPnH5u0wgOL9BabWzQg51Cn 6Rsv3nG23qRMrkoYQeE0LTxLHLDTNNYgmuUodRkGZXYrIc6PFCWLZ1HY+zucocetGZqn uO/GfmEcuE/k2Rs9/b0GeXmNszsmILMlVzAZIy90QGYTdsMiMwmOhp8EpuLArnyTovtg 7Rsg== X-Gm-Message-State: AOAM531zynsAQzwPVkVHClGLltBLsgB/y/YeQyEwpujv+ar3E6R+Z8be kM73xdnIhxsTd9bb7OnbgPUe0Q== X-Google-Smtp-Source: ABdhPJwI51BmEs3qGI8FDNKF5ss/e87Y6rR+GVHAxagEmJYMv7AInbAEgW3EW5XY/9nwPGuqTdzbMg== X-Received: by 2002:a2e:9153:: with SMTP id q19mr27384001ljg.173.1609418262800; Thu, 31 Dec 2020 04:37:42 -0800 (PST) Received: from eriador.lumag.spb.ru ([94.25.228.115]) by smtp.gmail.com with ESMTPSA id o11sm6228624lfi.267.2020.12.31.04.37.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Dec 2020 04:37:42 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Rob Herring , Lorenzo Pieralisi Cc: linux-arm-msm@vger.kernel.org, Manivannan Sadhasivam , linux-pci@vger.kernel.org Subject: [PATCH v3 1/2] dt-bindings: pci: qcom: Document ddrss_sf_tbu clock for sm8250 Date: Thu, 31 Dec 2020 15:37:30 +0300 Message-Id: <20201231123731.651908-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201231123731.651908-1-dmitry.baryshkov@linaro.org> References: <20201231123731.651908-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On SM8250 additional clock is required for PCIe devices to access NOC. Document this clock in devicetree bindings. Signed-off-by: Dmitry Baryshkov Fixes: 458168247ccc ("dt-bindings: pci: qcom: Document PCIe bindings for SM8250 SoC") --- Documentation/devicetree/bindings/pci/qcom,pcie.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt b/Documentation/devicetree/bindings/pci/qcom,pcie.txt index 3b55310390a0..c87806f76a43 100644 --- a/Documentation/devicetree/bindings/pci/qcom,pcie.txt +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt @@ -142,6 +142,7 @@ - "bus_slave" Slave AXI clock - "slave_q2a" Slave Q2A clock - "tbu" PCIe TBU clock + - "ddrss_sf_tbu" PCIe SF TBU clock, required on sm8250 - "pipe" PIPE clock - resets: From patchwork Thu Dec 31 12:37:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 1421559 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org 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=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: 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=nJ3yJiwO; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4D674T28psz9sSf for ; Thu, 31 Dec 2020 23:38:49 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726597AbgLaMic (ORCPT ); Thu, 31 Dec 2020 07:38:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726563AbgLaMib (ORCPT ); Thu, 31 Dec 2020 07:38:31 -0500 Received: from mail-lf1-x129.google.com (mail-lf1-x129.google.com [IPv6:2a00:1450:4864:20::129]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5F986C06179C for ; Thu, 31 Dec 2020 04:37:51 -0800 (PST) Received: by mail-lf1-x129.google.com with SMTP id h22so43888508lfu.2 for ; Thu, 31 Dec 2020 04:37:51 -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=6QTU6XyhJE+Fe8Pu0vmTbS/Aow1jSJFhTkSe7oTaHFI=; b=nJ3yJiwOMzFiC7KyjRxfeHxyxx+YJ+4PmUFA9hnkhORAXYebdiYItOtvgxQUEAqVCU Hxnux0d0LWRD99BJt+toHAJMPLjRy+DqFyD7tOS/FEcJZErX1MzLdEG+91J1lqVIjw+R 7BUaFs2VzlG382uaudijQU+v3lCHYWum+7GG3Muqsqe1xDcH50fHtqsqLWzw8QEq4cJM ZVxpoSRXyfBonHHZ3IlPOP0Ygece1nE5FoDRSjJGoUAfUBHTUhwMVAHbRvH0iN74WMAh 7d1a9fDpU7uKB7+xloCE8nFg0q3cyoe87YWwij57Q/2Fc+OfN4xi12Lyr4kzNpiuHE6z lTBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6QTU6XyhJE+Fe8Pu0vmTbS/Aow1jSJFhTkSe7oTaHFI=; b=nzOVc0iOr8wbllZnJkTSXEkI9XPQy3O6V4k68KdV7gnepItNdMkai1CnGTNR/bS9m/ 2/n+hLOnWqFcwIq/KCcEiVbpx9oorgabMi7USaBi6lgkQtr1GTRXgw2wrk4g/xNND2+Z /Z5qKtrlgP0TTHqv1xlAJr8u2cywlPDDGYlGRoNssSQxs7DoWXiU9YW1YGfSXqiNNoXN vcE3MbbBjWvemoFpuPCgsfF/PjZZcPHgvnr7MQPe7eXEso+Q4eRyQLiT3brUYyyyo+uO maCzeoDQdCdOE5APi4GermpFhUyOx+sbvRVPqLCTIvP1TsyEQ4l5q/ACyUrtwPqT25tU VzjQ== X-Gm-Message-State: AOAM532yzYsd1LKcYAfByIdLka+StPjO7aKtNxWmxnDKP59JAbRFjM9S 8K9w9aSiTFeH+fPJ1u/ZVxDmiA== X-Google-Smtp-Source: ABdhPJz8H5ZtFU2P3yy7TEmeA0TAVunfwPbwE9gQiSCMSKfHwKB5nzuLRSovXsgN8vgZfD9+J4tU2w== X-Received: by 2002:a05:6512:3748:: with SMTP id a8mr11506764lfs.31.1609418269931; Thu, 31 Dec 2020 04:37:49 -0800 (PST) Received: from eriador.lumag.spb.ru ([94.25.228.115]) by smtp.gmail.com with ESMTPSA id o11sm6228624lfi.267.2020.12.31.04.37.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Dec 2020 04:37:49 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Rob Herring , Lorenzo Pieralisi Cc: linux-arm-msm@vger.kernel.org, Manivannan Sadhasivam , linux-pci@vger.kernel.org Subject: [PATCH v3 2/2] PCI: qcom: add support for ddrss_sf_tbu clock Date: Thu, 31 Dec 2020 15:37:31 +0300 Message-Id: <20201231123731.651908-3-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201231123731.651908-1-dmitry.baryshkov@linaro.org> References: <20201231123731.651908-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On SM8250 additional clock is required for PCIe devices to access NOC. Update PCIe controller driver to control this clock. Signed-off-by: Dmitry Baryshkov Fixes: e1dd639e374a ("PCI: qcom: Add SM8250 SoC support") --- drivers/pci/controller/dwc/pcie-qcom.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index affa2713bf80..84c5a0a897dd 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -159,8 +159,9 @@ struct qcom_pcie_resources_2_3_3 { struct reset_control *rst[7]; }; +#define QCOM_PCIE_2_7_0_MAX_CLOCKS 6 struct qcom_pcie_resources_2_7_0 { - struct clk_bulk_data clks[6]; + struct clk_bulk_data clks[QCOM_PCIE_2_7_0_MAX_CLOCKS + 1]; /* + 1 for sf_tbu */ struct regulator_bulk_data supplies[2]; struct reset_control *pci_reset; struct clk *pipe_clk; @@ -1153,7 +1154,7 @@ static int qcom_pcie_get_resources_2_7_0(struct qcom_pcie *pcie) res->clks[4].id = "slave_q2a"; res->clks[5].id = "tbu"; - ret = devm_clk_bulk_get(dev, ARRAY_SIZE(res->clks), res->clks); + ret = devm_clk_bulk_get(dev, QCOM_PCIE_2_7_0_MAX_CLOCKS, res->clks); if (ret < 0) return ret; @@ -1161,6 +1162,22 @@ static int qcom_pcie_get_resources_2_7_0(struct qcom_pcie *pcie) return PTR_ERR_OR_ZERO(res->pipe_clk); } +static int qcom_pcie_get_resources_1_9_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; + int ret; + + ret = qcom_pcie_get_resources_2_7_0(pcie); + if (ret < 0) + return ret; + + /* Required clock for SM8250 */ + res->clks[6].clk = devm_clk_get_optional(dev, "ddrss_sf_tbu"); + return PTR_ERR_OR_ZERO(res->clks[6].clk); +} + static int qcom_pcie_init_2_7_0(struct qcom_pcie *pcie) { struct qcom_pcie_resources_2_7_0 *res = &pcie->res.v2_7_0; @@ -1437,7 +1454,7 @@ static const struct qcom_pcie_ops ops_2_7_0 = { /* Qcom IP rev.: 1.9.0 */ static const struct qcom_pcie_ops ops_1_9_0 = { - .get_resources = qcom_pcie_get_resources_2_7_0, + .get_resources = qcom_pcie_get_resources_1_9_0, .init = qcom_pcie_init_2_7_0, .deinit = qcom_pcie_deinit_2_7_0, .ltssm_enable = qcom_pcie_2_3_2_ltssm_enable,