aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/roles/class.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2024-03-21 12:35:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-03-21 12:35:20 -0700
commite09bf86f3d53ecf4da61163d88036c4c16419d70 (patch)
tree48993f46e882041015edb54c0f9ef7e7f98bd5e0 /drivers/usb/roles/class.c
parent2ac2b1665d3fbec6ca709dd6ef3ea05f4a51ee4c (diff)
parenta788e53c05aee6e3d60792a59e10c0fac56b5086 (diff)
downloadlinux-e09bf86f3d53ecf4da61163d88036c4c16419d70.tar.gz
Merge tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt changes for 6.9-rc1. Lots of tiny changes and forward progress to support new hardware and better support for existing devices. Included in here are: - Thunderbolt (i.e. USB4) updates for newer hardware and uses as more people start to use the hardware - default USB authentication mode Kconfig and documentation update to make it more obvious what is going on - USB typec updates and enhancements - usual dwc3 driver updates - usual xhci driver updates - function USB (i.e. gadget) driver updates and additions - new device ids for lots of drivers - loads of other small updates, full details in the shortlog All of these, including a "last minute regression fix" have been in linux-next with no reported issues" * tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (185 commits) usb: usb-acpi: Fix oops due to freeing uninitialized pld pointer usb: gadget: net2272: Use irqflags in the call to net2272_probe_fin usb: gadget: tegra-xudc: Fix USB3 PHY retrieval logic phy: tegra: xusb: Add API to retrieve the port number of phy USB: gadget: pxa27x_udc: Remove unused of_gpio.h usb: gadget/snps_udc_plat: Remove unused of_gpio.h usb: ohci-pxa27x: Remove unused of_gpio.h usb: sl811-hcd: only defined function checkdone if QUIRK2 is defined usb: Clarify expected behavior of dev_bin_attrs_are_visible() xhci: Allow RPM on the USB controller (1022:43f7) by default usb: isp1760: remove SLAB_MEM_SPREAD flag usage usb: misc: onboard_hub: use pointer consistently in the probe function usb: gadget: fsl: Increase size of name buffer for endpoints usb: gadget: fsl: Add of device table to enable module autoloading usb: typec: tcpm: add support to set tcpc connector orientatition usb: typec: tcpci: add generic tcpci fallback compatible dt-bindings: usb: typec-tcpci: add tcpci fallback binding usb: gadget: fsl-udc: Replace custom log wrappers by dev_{err,warn,dbg,vdbg} usb: core: Set connect_type of ports based on DT node dt-bindings: usb: Add downstream facing ports to realtek binding ...
Diffstat (limited to 'drivers/usb/roles/class.c')
-rw-r--r--drivers/usb/roles/class.c43
1 files changed, 39 insertions, 4 deletions
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index 70165dd86b5de9..d7aa913ceb8a0b 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -7,6 +7,7 @@
* Hans de Goede <hdegoede@redhat.com>
*/
+#include <linux/component.h>
#include <linux/usb/role.h>
#include <linux/property.h>
#include <linux/device.h>
@@ -36,6 +37,32 @@ struct usb_role_switch {
#define to_role_switch(d) container_of(d, struct usb_role_switch, dev)
+static int connector_bind(struct device *dev, struct device *connector, void *data)
+{
+ int ret;
+
+ ret = sysfs_create_link(&dev->kobj, &connector->kobj, "connector");
+ if (ret)
+ return ret;
+
+ ret = sysfs_create_link(&connector->kobj, &dev->kobj, "usb-role-switch");
+ if (ret)
+ sysfs_remove_link(&dev->kobj, "connector");
+
+ return ret;
+}
+
+static void connector_unbind(struct device *dev, struct device *connector, void *data)
+{
+ sysfs_remove_link(&connector->kobj, "usb-role-switch");
+ sysfs_remove_link(&dev->kobj, "connector");
+}
+
+static const struct component_ops connector_ops = {
+ .bind = connector_bind,
+ .unbind = connector_unbind,
+};
+
/**
* usb_role_switch_set_role - Set USB role for a switch
* @sw: USB role switch
@@ -361,6 +388,12 @@ usb_role_switch_register(struct device *parent,
return ERR_PTR(ret);
}
+ if (dev_fwnode(&sw->dev)) {
+ ret = component_add(&sw->dev, &connector_ops);
+ if (ret)
+ dev_warn(&sw->dev, "failed to add component\n");
+ }
+
sw->registered = true;
/* TODO: Symlinks for the host port and the device controller. */
@@ -377,10 +410,12 @@ EXPORT_SYMBOL_GPL(usb_role_switch_register);
*/
void usb_role_switch_unregister(struct usb_role_switch *sw)
{
- if (!IS_ERR_OR_NULL(sw)) {
- sw->registered = false;
- device_unregister(&sw->dev);
- }
+ if (IS_ERR_OR_NULL(sw))
+ return;
+ sw->registered = false;
+ if (dev_fwnode(&sw->dev))
+ component_del(&sw->dev, &connector_ops);
+ device_unregister(&sw->dev);
}
EXPORT_SYMBOL_GPL(usb_role_switch_unregister);