[PATCH v2 08/12] USB: EHCI: register dependency parser for firmware nodes
From: Tomeu Vizoso <hidden>
Date: 2015-07-01 09:44:44
Also in:
alsa-devel, dri-devel, linux-acpi, linux-devicetree, linux-gpio, linux-pwm, linux-tegra, lkml
Subsystem:
the rest, usb ehci driver, usb subsystem · Maintainers:
Linus Torvalds, Alan Stern, Greg Kroah-Hartman
So others can find out whether a firmware node depends on a phy as specified in bindings/usb/nvidia,tegra20-ehci.txt. Signed-off-by: Tomeu Vizoso <redacted> --- Changes in v2: None drivers/usb/host/ehci-tegra.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 4031b37..3665eaa 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c@@ -589,6 +589,18 @@ static const struct ehci_driver_overrides tegra_overrides __initconst = { .reset = tegra_ehci_reset, }; +static void tegra_ehci_get_dependencies(struct fwnode_handle *fwnode, + struct list_head *deps) +{ + struct device_node *np; + + np = of_parse_phandle(to_of_node(fwnode), "nvidia,phy", 0); + if (!np) + return; + + fwnode_add_dependency(&np->fwnode, deps); +} + static int __init ehci_tegra_init(void) { if (usb_disabled())
@@ -611,6 +623,8 @@ static int __init ehci_tegra_init(void) tegra_ehci_hc_driver.unmap_urb_for_dma = tegra_ehci_unmap_urb_for_dma; tegra_ehci_hc_driver.hub_control = tegra_ehci_hub_control; + fwnode_add_dependency_parser(tegra_ehci_get_dependencies); + return platform_driver_register(&tegra_ehci_driver); } module_init(ehci_tegra_init);
@@ -618,6 +632,8 @@ module_init(ehci_tegra_init); static void __exit ehci_tegra_cleanup(void) { platform_driver_unregister(&tegra_ehci_driver); + + fwnode_remove_dependency_parser(tegra_ehci_get_dependencies); } module_exit(ehci_tegra_cleanup);
--
2.4.1