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Mon, 25 Mar 2019 04:43:13 -0500 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1713.5 via Frontend Transport; Mon, 25 Mar 2019 04:43:13 -0500 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id x2P9feaV028077; Mon, 25 Mar 2019 04:43:08 -0500 From: Kishon Vijay Abraham I To: Gustavo Pimentel , Bjorn Helgaas , Rob Herring , Lorenzo Pieralisi , Arnd Bergmann , Murali Karicheri Subject: [PATCH v3 16/26] PCI: OF: Allow of_pci_get_max_link_speed() to be used by PCI Endpoint drivers Date: Mon, 25 Mar 2019 15:09:37 +0530 Message-ID: <20190325093947.32633-17-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190325093947.32633-1-kishon@ti.com> References: <20190325093947.32633-1-kishon@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190325_024324_723934_54465A13 X-CRM114-Status: GOOD ( 20.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jesper Nilsson , Greg Kroah-Hartman , Jingoo Han , Sekhar Nori , linux-kernel@vger.kernel.org, linux-arm-kernel@axis.com, Kishon Vijay Abraham I , Minghuan Lian , Mingkai Hu , linux-pci@vger.kernel.org, linux-omap@vger.kernel.org, Roy Zang , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP of_pci_get_max_link_speed() is built only if CONFIG_PCI is enabled. Make of_pci_get_max_link_speed() to be also used by PCI Endpoint controllers with just CONFIG_PCI_ENDPOINT enabled. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sekhar Nori Acked-by: Bjorn Helgaas --- drivers/pci/Makefile | 2 +- drivers/pci/of.c | 44 +++++++++++++++++++++++--------------------- 2 files changed, 24 insertions(+), 22 deletions(-) diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 657d642fcc67..28cdd8c0213a 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -10,10 +10,10 @@ obj-$(CONFIG_PCI) += access.o bus.o probe.o host-bridge.o \ ifdef CONFIG_PCI obj-$(CONFIG_PROC_FS) += proc.o obj-$(CONFIG_SYSFS) += slot.o -obj-$(CONFIG_OF) += of.o obj-$(CONFIG_ACPI) += pci-acpi.o endif +obj-$(CONFIG_OF) += of.o obj-$(CONFIG_PCI_QUIRKS) += quirks.o obj-$(CONFIG_PCIEPORTBUS) += pcie/ obj-$(CONFIG_HOTPLUG_PCI) += hotplug/ diff --git a/drivers/pci/of.c b/drivers/pci/of.c index 3d32da15c215..8095933f8452 100644 --- a/drivers/pci/of.c +++ b/drivers/pci/of.c @@ -15,6 +15,7 @@ #include #include "pci.h" +#ifdef CONFIG_PCI void pci_set_of_node(struct pci_dev *dev) { if (!dev->bus->dev.of_node) @@ -196,27 +197,6 @@ int of_get_pci_domain_nr(struct device_node *node) } EXPORT_SYMBOL_GPL(of_get_pci_domain_nr); -/** - * This function will try to find the limitation of link speed by finding - * a property called "max-link-speed" of the given device node. - * - * @node: device tree node with the max link speed information - * - * Returns the associated max link speed from DT, or a negative value if the - * required property is not found or is invalid. - */ -int of_pci_get_max_link_speed(struct device_node *node) -{ - u32 max_link_speed; - - if (of_property_read_u32(node, "max-link-speed", &max_link_speed) || - max_link_speed > 4) - return -EINVAL; - - return max_link_speed; -} -EXPORT_SYMBOL_GPL(of_pci_get_max_link_speed); - /** * of_pci_check_probe_only - Setup probe only mode if linux,pci-probe-only * is present and valid @@ -537,3 +517,25 @@ int pci_parse_request_of_pci_ranges(struct device *dev, return err; } +#endif /* CONFIG_PCI */ + +/** + * This function will try to find the limitation of link speed by finding + * a property called "max-link-speed" of the given device node. + * + * @node: device tree node with the max link speed information + * + * Returns the associated max link speed from DT, or a negative value if the + * required property is not found or is invalid. + */ +int of_pci_get_max_link_speed(struct device_node *node) +{ + u32 max_link_speed; + + if (of_property_read_u32(node, "max-link-speed", &max_link_speed) || + max_link_speed > 4) + return -EINVAL; + + return max_link_speed; +} +EXPORT_SYMBOL_GPL(of_pci_get_max_link_speed);