[v2] 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>
---
 drivers/usb/typec/mux/intel_pmc_mux.c | 1 +
 1 file changed, 1 insertion(+)

On Fri, Aug 25, 2023 at 11:51:57AM +0530, Uday M Bhat wrote:
> 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>
> ---
>  drivers/usb/typec/mux/intel_pmc_mux.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> 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)) {
> -- 
> 2.17.1
> 

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
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You are receiving this message because of the following common error(s)
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