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authorUday M Bhat <uday.m.bhat@intel.com>2023-09-06 10:27:17 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-02 14:54:42 +0300
commit8929f62f1d7a45d109cd747cdeb60f3eae1c0717 (patch)
tree9ebaa38a476821167c0d34df90d822b15a33ae43
parent2f07592c30e1db498fe198a80e9d36f9d7cce441 (diff)
downloadlinux-8929f62f1d7a45d109cd747cdeb60f3eae1c0717.tar.xz
usb: typec: intel_pmc_mux: enable sysfs usb role access
The OS, such as ChromeOS, uses Android Runtime to run Android applications. This necessitates supporting tools, for example, Android Debugger (ADB). On host to host setup xHC.DbC shall support ADB with USB. This requires user space to control USB roles. Enable user space control to modify the USB Type-C role. At run time it will create a role attribute in /sys/class/usb_role/<switch>/. Attribute can be modified based on the values suggested in the Documentation/ABI/testing/sysfs-class-usb_role. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Uday M Bhat <uday.m.bhat@intel.com> Link: https://lore.kernel.org/r/20230906072717.32485-1-uday.m.bhat@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/typec/mux/intel_pmc_mux.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c
index 60ed1f809130..12a4f49e870e 100644
--- a/drivers/usb/typec/mux/intel_pmc_mux.c
+++ b/drivers/usb/typec/mux/intel_pmc_mux.c
@@ -599,6 +599,7 @@ static int pmc_usb_register_port(struct pmc_usb *pmc, int index,
desc.driver_data = port;
desc.name = fwnode_get_name(fwnode);
desc.set = pmc_usb_set_role;
+ desc.allow_userspace_control = true;
port->usb_sw = usb_role_switch_register(pmc->dev, &desc);
if (IS_ERR(port->usb_sw)) {