[V6] roles: Fix USB 3.0 OTG issue on Intel platform

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Fri, Sep 07, 2018 at 12:32:01PM +0530, saranya.gopal@intel.com wrote:
> From: Saranya Gopal <saranya.gopal@intel.com>
> 
> This patch adds static DRD mode for host/device
> mode switch. This fixes the issue where device
> mode was not working after DUT switches to host
> mode with 3.0 OTG connector.
> 
> Signed-off-by: Saranya Gopal <saranya.gopal@intel.com>
> Signed-off-by: M Balaji <m.balaji@intel.com>
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
> ---
>  changes since V5: Corrected the name format in From and Signed-off-by
>  changes since V4: Removed change-Id
>  changes since V3: Added Reviewed-by Sathyanarayanan tag
>  changes since V2: Incorporated Heikki's review comments and added Reviewed-by Heikki tag
>  changes since V1: none
> 
>  drivers/usb/roles/intel-xhci-usb-role-switch.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/roles/intel-xhci-usb-role-switch.c b/drivers/usb/roles/intel-xhci-usb-role-switch.c
> index dad2d19..0d1ea82 100644
> --- a/drivers/usb/roles/intel-xhci-usb-role-switch.c
> +++ b/drivers/usb/roles/intel-xhci-usb-role-switch.c
> @@ -25,6 +25,9 @@
>  #define SW_VBUS_VALID			BIT(24)
>  #define SW_IDPIN_EN			BIT(21)
>  #define SW_IDPIN			BIT(20)
> +#define SW_SWITCH_EN_CFG0		BIT(16)

Why is this not in the correct sorted order with the items above it?

Is this a patch that should go to the stable trees?  If so, which ones?

thanks,

greg k-h