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Thu, 02 Jul 2026 19:00:41 -0700 (PDT) From: Inochi Amaoto To: Jingoo Han , Manivannan Sadhasivam , Bjorn Helgaas , Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Christian Bruel , Inochi Amaoto , Frank Li , Neil Armstrong , Andy Shevchenko , Sascha Hauer , Xincheng Zhang , Alex Elder , Randolph Lin , Siddharth Vadapalli , Vidya Sagar , Gustavo Pimentel Cc: linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, Yixun Lan , Longbin Li Subject: [PATCH v3 1/6] PCI: spacemit-k1: Add device data support Date: Fri, 3 Jul 2026 09:59:57 +0800 Message-ID: <20260703020003.485436-2-inochiama@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260703020003.485436-1-inochiama@gmail.com> References: <20260703020003.485436-1-inochiama@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To reuse the K1 PCIe driver logic for K3 PCIe controller, add device data to handle the K1 specific logic and make room for the incoming logic for K3. Signed-off-by: Inochi Amaoto --- drivers/pci/controller/dwc/pcie-spacemit-k1.c | 30 ++++++++++++++++--- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-spacemit-k1.c b/drivers/pci/controller/dwc/pcie-spacemit-k1.c index be20a520255b..f6ae8ff3589a 100644 --- a/drivers/pci/controller/dwc/pcie-spacemit-k1.c +++ b/drivers/pci/controller/dwc/pcie-spacemit-k1.c @@ -49,8 +49,17 @@ #define PCIE_CONTROL_LOGIC 0x0004 #define PCIE_SOFT_RESET BIT(0) +struct k1_pcie; + +struct k1_pcie_device_data { + const struct dw_pcie_host_ops *host_ops; + const struct dw_pcie_ops *ops; + int (*parse_port)(struct k1_pcie *k1); +}; + struct k1_pcie { struct dw_pcie pci; + const struct k1_pcie_device_data *data; struct phy *phy; void __iomem *link; struct regmap *pmu; /* Errors ignored; MMIO-backed regmap */ @@ -278,14 +287,21 @@ static int k1_pcie_parse_port(struct k1_pcie *k1) static int k1_pcie_probe(struct platform_device *pdev) { + const struct k1_pcie_device_data *data; struct device *dev = &pdev->dev; struct k1_pcie *k1; int ret; + data = device_get_match_data(dev); + if (!data) + return -ENODEV; + k1 = devm_kzalloc(dev, sizeof(*k1), GFP_KERNEL); if (!k1) return -ENOMEM; + k1->data = data; + k1->pmu = syscon_regmap_lookup_by_phandle_args(dev_of_node(dev), SYSCON_APMU, 1, &k1->pmu_off); @@ -299,11 +315,11 @@ static int k1_pcie_probe(struct platform_device *pdev) "failed to map \"link\" registers\n"); k1->pci.dev = dev; - k1->pci.ops = &k1_pcie_ops; + k1->pci.ops = data->ops; k1->pci.pp.num_vectors = MAX_MSI_IRQS; dw_pcie_cap_set(&k1->pci, REQ_RES); - k1->pci.pp.ops = &k1_pcie_host_ops; + k1->pci.pp.ops = data->host_ops; /* Hold the PHY in reset until we start the link */ regmap_set_bits(k1->pmu, k1->pmu_off + PCIE_CLK_RESET_CONTROL, @@ -320,7 +336,7 @@ static int k1_pcie_probe(struct platform_device *pdev) platform_set_drvdata(pdev, k1); - ret = k1_pcie_parse_port(k1); + ret = data->parse_port(k1); if (ret) return dev_err_probe(dev, ret, "failed to parse root port\n"); @@ -338,8 +354,14 @@ static void k1_pcie_remove(struct platform_device *pdev) dw_pcie_host_deinit(&k1->pci.pp); } +static const struct k1_pcie_device_data k1_pcie_device_data = { + .host_ops = &k1_pcie_host_ops, + .ops = &k1_pcie_ops, + .parse_port = k1_pcie_parse_port, +}; + static const struct of_device_id k1_pcie_of_match_table[] = { - { .compatible = "spacemit,k1-pcie", }, + { .compatible = "spacemit,k1-pcie", .data = &k1_pcie_device_data}, { } }; -- 2.55.0 From mboxrd@z Thu Jan 1 00:00:00 1970 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 73B9AC43458 for ; Fri, 3 Jul 2026 02:00:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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Thu, 02 Jul 2026 19:00:41 -0700 (PDT) Received: from localhost ([2001:19f0:8000:3e6e:5400:6ff:fe38:3d01]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-38127c12792sm190602a91.5.2026.07.02.19.00.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jul 2026 19:00:41 -0700 (PDT) From: Inochi Amaoto To: Jingoo Han , Manivannan Sadhasivam , Bjorn Helgaas , Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Christian Bruel , Inochi Amaoto , Frank Li , Neil Armstrong , Andy Shevchenko , Sascha Hauer , Xincheng Zhang , Alex Elder , Randolph Lin , Siddharth Vadapalli , Vidya Sagar , Gustavo Pimentel Cc: linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, Yixun Lan , Longbin Li Subject: [PATCH v3 1/6] PCI: spacemit-k1: Add device data support Date: Fri, 3 Jul 2026 09:59:57 +0800 Message-ID: <20260703020003.485436-2-inochiama@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260703020003.485436-1-inochiama@gmail.com> References: <20260703020003.485436-1-inochiama@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260702_190043_010272_F6E70C74 X-CRM114-Status: GOOD ( 15.73 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org To reuse the K1 PCIe driver logic for K3 PCIe controller, add device data to handle the K1 specific logic and make room for the incoming logic for K3. Signed-off-by: Inochi Amaoto --- drivers/pci/controller/dwc/pcie-spacemit-k1.c | 30 ++++++++++++++++--- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-spacemit-k1.c b/drivers/pci/controller/dwc/pcie-spacemit-k1.c index be20a520255b..f6ae8ff3589a 100644 --- a/drivers/pci/controller/dwc/pcie-spacemit-k1.c +++ b/drivers/pci/controller/dwc/pcie-spacemit-k1.c @@ -49,8 +49,17 @@ #define PCIE_CONTROL_LOGIC 0x0004 #define PCIE_SOFT_RESET BIT(0) +struct k1_pcie; + +struct k1_pcie_device_data { + const struct dw_pcie_host_ops *host_ops; + const struct dw_pcie_ops *ops; + int (*parse_port)(struct k1_pcie *k1); +}; + struct k1_pcie { struct dw_pcie pci; + const struct k1_pcie_device_data *data; struct phy *phy; void __iomem *link; struct regmap *pmu; /* Errors ignored; MMIO-backed regmap */ @@ -278,14 +287,21 @@ static int k1_pcie_parse_port(struct k1_pcie *k1) static int k1_pcie_probe(struct platform_device *pdev) { + const struct k1_pcie_device_data *data; struct device *dev = &pdev->dev; struct k1_pcie *k1; int ret; + data = device_get_match_data(dev); + if (!data) + return -ENODEV; + k1 = devm_kzalloc(dev, sizeof(*k1), GFP_KERNEL); if (!k1) return -ENOMEM; + k1->data = data; + k1->pmu = syscon_regmap_lookup_by_phandle_args(dev_of_node(dev), SYSCON_APMU, 1, &k1->pmu_off); @@ -299,11 +315,11 @@ static int k1_pcie_probe(struct platform_device *pdev) "failed to map \"link\" registers\n"); k1->pci.dev = dev; - k1->pci.ops = &k1_pcie_ops; + k1->pci.ops = data->ops; k1->pci.pp.num_vectors = MAX_MSI_IRQS; dw_pcie_cap_set(&k1->pci, REQ_RES); - k1->pci.pp.ops = &k1_pcie_host_ops; + k1->pci.pp.ops = data->host_ops; /* Hold the PHY in reset until we start the link */ regmap_set_bits(k1->pmu, k1->pmu_off + PCIE_CLK_RESET_CONTROL, @@ -320,7 +336,7 @@ static int k1_pcie_probe(struct platform_device *pdev) platform_set_drvdata(pdev, k1); - ret = k1_pcie_parse_port(k1); + ret = data->parse_port(k1); if (ret) return dev_err_probe(dev, ret, "failed to parse root port\n"); @@ -338,8 +354,14 @@ static void k1_pcie_remove(struct platform_device *pdev) dw_pcie_host_deinit(&k1->pci.pp); } +static const struct k1_pcie_device_data k1_pcie_device_data = { + .host_ops = &k1_pcie_host_ops, + .ops = &k1_pcie_ops, + .parse_port = k1_pcie_parse_port, +}; + static const struct of_device_id k1_pcie_of_match_table[] = { - { .compatible = "spacemit,k1-pcie", }, + { .compatible = "spacemit,k1-pcie", .data = &k1_pcie_device_data}, { } }; -- 2.55.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv