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authorLinus Torvalds <torvalds@linux-foundation.org>2023-02-24 23:07:00 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-02-24 23:07:00 +0300
commit72bffe7e1eb6cb82b90aa14cd786f3f5ede9e0ae (patch)
tree4af7472d4342f61bba8d86e8d376bbd049ee8126 /drivers/thunderbolt/switch.c
parentab7362d04d7c14923420c1e19e889da512a65cd7 (diff)
parent1243741f6b02b5f2c06bca910f894c333838f994 (diff)
downloadlinux-72bffe7e1eb6cb82b90aa14cd786f3f5ede9e0ae.tar.xz
Merge tag 'usb-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt driver updates from Greg KH: "Here is the big set of USB and Thunderbolt driver changes for 6.3-rc1. Nothing major in here, just lots of good development, including: - Thunderbolt additions for new device support and features - xhci driver updates and cleanups - USB gadget media driver updates (includes media core changes that were acked by the v4l2 maintainers) - lots of other USB gadget driver updates for new features - dwc3 driver updates and fixes - minor debugfs leak fixes - typec driver updates and additions - dt-bindings conversions to yaml - other small bugfixes and driver updates All have been in linux-next for a while with no reported issues" * tag 'usb-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (237 commits) usb: dwc3: xilinx: Remove unused of_gpio,h usb: typec: pd: Add higher capability sysfs for sink PDO usb: typec: pd: Remove usb_suspend_supported sysfs from sink PDO usb: dwc3: pci: add support for the Intel Meteor Lake-M usb: gadget: u_ether: Don't warn in gether_setup_name_default() usb: gadget: u_ether: Convert prints to device prints usb: gadget: u_serial: Add null pointer check in gserial_resume usb: gadget: uvc: fix missing mutex_unlock() if kstrtou8() fails xhci: host: potential NULL dereference in xhci_generic_plat_probe() dt-bindings: usb: amlogic,meson-g12a-usb-ctrl: make G12A usb3-phy0 optional usb: host: fsl-mph-dr-of: reuse device_set_of_node_from_dev of: device: Do not ignore error code in of_device_uevent_modalias of: device: Ignore modalias of reused nodes usb: gadget: configfs: Fix set but not used variable warning usb: gadget: uvc: Use custom strings if available usb: gadget: uvc: Allow linking function to string descs usb: gadget: uvc: Pick up custom string descriptor IDs usb: gadget: uvc: Allow linking XUs to string descriptors usb: gadget: configfs: Attach arbitrary strings to cdev usb: gadget: configfs: Support arbitrary string descriptors ...
Diffstat (limited to 'drivers/thunderbolt/switch.c')
-rw-r--r--drivers/thunderbolt/switch.c42
1 files changed, 25 insertions, 17 deletions
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 363d712aa364..e1ad1b437291 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -513,36 +513,44 @@ int tb_wait_for_port(struct tb_port *port, bool wait_if_unplugged)
while (retries--) {
state = tb_port_state(port);
- if (state < 0)
- return state;
- if (state == TB_PORT_DISABLED) {
+ switch (state) {
+ case TB_PORT_DISABLED:
tb_port_dbg(port, "is disabled (state: 0)\n");
return 0;
- }
- if (state == TB_PORT_UNPLUGGED) {
+
+ case TB_PORT_UNPLUGGED:
if (wait_if_unplugged) {
/* used during resume */
tb_port_dbg(port,
"is unplugged (state: 7), retrying...\n");
msleep(100);
- continue;
+ break;
}
tb_port_dbg(port, "is unplugged (state: 7)\n");
return 0;
- }
- if (state == TB_PORT_UP) {
- tb_port_dbg(port, "is connected, link is up (state: 2)\n");
+
+ case TB_PORT_UP:
+ case TB_PORT_TX_CL0S:
+ case TB_PORT_RX_CL0S:
+ case TB_PORT_CL1:
+ case TB_PORT_CL2:
+ tb_port_dbg(port, "is connected, link is up (state: %d)\n", state);
return 1;
+
+ default:
+ if (state < 0)
+ return state;
+
+ /*
+ * After plug-in the state is TB_PORT_CONNECTING. Give it some
+ * time.
+ */
+ tb_port_dbg(port,
+ "is connected, link is not up (state: %d), retrying...\n",
+ state);
+ msleep(100);
}
- /*
- * After plug-in the state is TB_PORT_CONNECTING. Give it some
- * time.
- */
- tb_port_dbg(port,
- "is connected, link is not up (state: %d), retrying...\n",
- state);
- msleep(100);
}
tb_port_warn(port,
"failed to reach state TB_PORT_UP. Ignoring port...\n");