From patchwork Thu May 28 06:16:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuanjia Liu X-Patchwork-Id: 11574781 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 0A99B60D for ; Thu, 28 May 2020 06:19:04 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 DCC99208FE for ; Thu, 28 May 2020 06:19:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SpOi0ueF"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="UGIBoIEG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DCC99208FE 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=bombadil.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=LIr5poLUT/UdH6/akh/pnICGGa3rUBkN+4FhE1DyOrU=; b=SpOi0ueFcoJ/ka 4esa6cDd5oU4fp0z684ZVPaVvvhm/azSZBBMYinHaAW6EvzKcMNYIX9grP8eg/728lEPNTKVq0I8H PQZ9KvD4uTu8Opo1hD8LsRSLr+YLpNKt3KPOY/4gpwQ97uU9rI5PwkuAxPBgR949Vh5EiG0Vaww1H Ep+I5BFRn2LVVQZP1Z7U0A0VUcOTLJ4znoWRLEXxtM9/Wd4hwQsrEPQszeDFti/RbwGfJ5efOb5UL fhwBzSxELEzAAgH7env/XD2sSSpVf2Qsn6WO8D3ZepMtWrRtARiaRKSNxSBQTg2SSHcjmBSJSzcX+ w8wqWaUMs0crlBuZWS1g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jeBsc-0001tI-88; Thu, 28 May 2020 06:19:02 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jeBsZ-0001rp-6g; Thu, 28 May 2020 06:19:01 +0000 X-UUID: beeaf5765357439c91eab1f67ca7ef43-20200527 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=+IjWjsF/DhknqZB+lLSZ50cyvxDap+8w4tvqhp8Dv68=; b=UGIBoIEGJUuq5pEvYEad1HVGpiv6yma+94hva83D2gD8lYmihRWkpJxB2yn+dVtNm7ZXXoQBf+jvvULOmslJgs1HZTLJTnjpdvLmQqo42OXRXSVpTE49HdRkJZDAIWIAReBfOEkFgNxcIX3uedrtnww/NLJ2lagrYPG5ET4lI2E=; X-UUID: beeaf5765357439c91eab1f67ca7ef43-20200527 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 603406343; Wed, 27 May 2020 22:19:17 -0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 27 May 2020 23:18:47 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 28 May 2020 14:18:51 +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; Thu, 28 May 2020 14:18:49 +0800 From: To: , , Subject: [PATCH v2 2/4] PCI: mediatek: Use regmap to get shared pcie-cfg base Date: Thu, 28 May 2020 14:16:46 +0800 Message-ID: <20200528061648.32078-3-chuanjia.liu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200528061648.32078-1-chuanjia.liu@mediatek.com> References: <20200528061648.32078-1-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-20200527_231859_251275_BED2B1E2 X-CRM114-Status: GOOD ( 11.62 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 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, lorenzo.pieralisi@arm.com, srv_heupstream@mediatek.com, "chuanjia.liu" , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, jianjun.wang@mediatek.com, linux-mediatek@lists.infradead.org, yong.wu@mediatek.com, bhelgaas@google.com, linux-arm-kernel@lists.infradead.org, amurray@thegoodpenguin.co.uk Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org From: "chuanjia.liu" Use regmap to get shared pcie-cfg base and change the method to get pcie irq. Signed-off-by: chuanjia.liu --- drivers/pci/controller/pcie-mediatek.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) --- 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 +652,7 @@ static int mtk_pcie_setup_irq(struct mtk return err; } - port->irq = platform_get_irq(pdev, port->slot); + port->irq = platform_get_irq_byname(pdev, "pcie_irq"); if (port->irq < 0) return port->irq; @@ -674,12 +678,11 @@ static int mtk_pcie_startup_port_v2(stru if (!mem) return -EINVAL; - /* MT7622 platforms need to enable LTSSM and ASPM from PCIe subsys */ - if (pcie->base) { - val = readl(pcie->base + PCIE_SYS_CFG_V2); - val |= PCIE_CSR_LTSSM_EN(port->slot) | - PCIE_CSR_ASPM_L1_EN(port->slot); - writel(val, pcie->base + PCIE_SYS_CFG_V2); + /* MT7622/MT7629 platforms need to enable LTSSM and ASPM. */ + 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 +986,7 @@ static int mtk_pcie_subsys_powerup(struc 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 +999,13 @@ static int mtk_pcie_subsys_powerup(struc } } + cfg_node = of_parse_phandle(dev->of_node, "mediatek,pcie-cfg", 0); + 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)