From patchwork Mon Sep 14 11:26:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuanjia Liu X-Patchwork-Id: 11773589 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A15A7746 for ; Mon, 14 Sep 2020 11:34:03 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6E9CF208DB for ; Mon, 14 Sep 2020 11:34:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="odDwI5qW"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="tdSssHe0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6E9CF208DB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vwIXaiWpnUgLQqHubPAfbzR2vuXLbKc0mVlVEbJc9eo=; b=odDwI5qWDbVllqEqEMvB4xq9+ 4VYMCYO+Ik/ChE3zM8p2tbqodaN/cI6AM/0+efQTW3oCjEiwuHJXmxeNxNdYYsiJpfwZ1mpbm5zyx AF1cJqkzCJtz2Q7NAK5iPzIFG9+OT0hWbP0wvYNs74edNb37Uoqp0TvTDzNZMPHXn4UePQZmz06cz ev6iPXiyrjUbfpwj+8b1dPT8wMY3/XPrZhBmVIyt4GcF3ChQYfh1nqCJlSA3JdZaeBU1miJhRV8jM +rSmxXpqcK3eItPOVyJ6AcftA2CbArdUndtB8SDR8aJa3xcQkQME8JGb96mPAmd8ClYQk4bHw89/j EUoceMh+g==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kHmkD-0005SI-DD; Mon, 14 Sep 2020 11:34:01 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kHmkA-0005R1-MA; Mon, 14 Sep 2020 11:34:00 +0000 X-UUID: 1234dfb9905c4c8fa0cb772f5c0d3973-20200914 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=XMZxyn6b3FBsdxBCB2TKGC6CA3eMv9x5H8CXbCfu32I=; b=tdSssHe0vC8uxtuVngFo+Sy24zPxQTg7Ki1MaG5Byc3ddCwz2aoufOlxh3pJoxVTYT7pM8Z80xJn2G2rdTYmAvoLvr71KSkY5ViHITMVv8+K4TQYt0usLLjHZXlvv/ipvrD0qlMGjuet/CDT7FcDbY1+kHkR8PQ0+jPAWW6RknQ=; X-UUID: 1234dfb9905c4c8fa0cb772f5c0d3973-20200914 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1255703246; Mon, 14 Sep 2020 03:29:45 -0800 Received: from mtkmbs08n1.mediatek.inc (172.21.101.55) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 14 Sep 2020 04:29:43 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 14 Sep 2020 19:29:39 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 14 Sep 2020 19:29:40 +0800 From: Chuanjia Liu To: Bjorn Helgaas , Rob Herring , Lorenzo Pieralisi , Matthias Brugger Subject: [PATCH v6 2/4] PCI: mediatek: Add new method to get shared pcie-cfg base and irq Date: Mon, 14 Sep 2020 19:26:57 +0800 Message-ID: <20200914112659.7091-3-chuanjia.liu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200914112659.7091-1-chuanjia.liu@mediatek.com> References: <20200914112659.7091-1-chuanjia.liu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200914_073358_897633_EE2B8863 X-CRM114-Status: GOOD ( 16.25 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Ryder Lee , Frank Wunderlich , linux-pci@vger.kernel.org, Chuanjia Liu , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, yong.wu@mediatek.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org Add new method to get shared pcie-cfg base and pcie irq for new dts format. Signed-off-by: Chuanjia Liu Acked-by: Ryder Lee --- drivers/pci/controller/pcie-mediatek.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index cf4c18f0c25a..5b915eb0cf1e 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -23,6 +24,7 @@ #include #include #include +#include #include #include "../pci.h" @@ -205,6 +207,7 @@ struct mtk_pcie_port { * struct mtk_pcie - PCIe host information * @dev: pointer to PCIe device * @base: IO mapped register base + * @cfg: IO mapped register map for PCIe config * @free_ck: free-run reference clock * @mem: non-prefetchable memory resource * @ports: pointer to PCIe port information @@ -213,6 +216,7 @@ struct mtk_pcie_port { struct mtk_pcie { struct device *dev; void __iomem *base; + struct regmap *cfg; struct clk *free_ck; struct list_head ports; @@ -648,7 +652,11 @@ static int mtk_pcie_setup_irq(struct mtk_pcie_port *port, return err; } - port->irq = platform_get_irq(pdev, port->slot); + if (of_find_property(dev->of_node, "interrupt-names", NULL)) + port->irq = platform_get_irq_byname(pdev, "pcie_irq"); + else + port->irq = platform_get_irq(pdev, port->slot); + if (port->irq < 0) return port->irq; @@ -680,6 +688,10 @@ static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port) val |= PCIE_CSR_LTSSM_EN(port->slot) | PCIE_CSR_ASPM_L1_EN(port->slot); writel(val, pcie->base + PCIE_SYS_CFG_V2); + } else if (pcie->cfg) { + val = PCIE_CSR_LTSSM_EN(port->slot) | + PCIE_CSR_ASPM_L1_EN(port->slot); + regmap_update_bits(pcie->cfg, PCIE_SYS_CFG_V2, val, val); } /* Assert all reset signals */ @@ -983,6 +995,7 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie) struct device *dev = pcie->dev; struct platform_device *pdev = to_platform_device(dev); struct resource *regs; + struct device_node *cfg_node; int err; /* get shared registers, which are optional */ @@ -995,6 +1008,14 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie) } } + cfg_node = of_find_compatible_node(NULL, NULL, + "mediatek,generic-pciecfg"); + if (cfg_node) { + pcie->cfg = syscon_node_to_regmap(cfg_node); + if (IS_ERR(pcie->cfg)) + return PTR_ERR(pcie->cfg); + } + pcie->free_ck = devm_clk_get(dev, "free_ck"); if (IS_ERR(pcie->free_ck)) { if (PTR_ERR(pcie->free_ck) == -EPROBE_DEFER)