| Message ID | 20190325093947.32633-17-kishon@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for PCIe RC and EP mode in TI's AM654 SoC | expand |
On Mon, Mar 25, 2019 at 03:09:37PM +0530, Kishon Vijay Abraham I wrote: > 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 <kishon@ti.com> > Signed-off-by: Sekhar Nori <nsekhar@ti.com> > --- > drivers/pci/Makefile | 2 +- > drivers/pci/of.c | 44 +++++++++++++++++++++++--------------------- > 2 files changed, 24 insertions(+), 22 deletions(-) I delegated this patch to Bjorn in the patch queue since it needs his review/ACK to proceed. Thanks, Lorenzo > 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 <linux/of_pci.h> > #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); > -- > 2.17.1 >
On Mon, Mar 25, 2019 at 03:09:37PM +0530, Kishon Vijay Abraham I wrote: > 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 <kishon@ti.com> > Signed-off-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> > --- > 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 <linux/of_pci.h> > #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); > -- > 2.17.1 >
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 <linux/of_pci.h> #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);