Currently there's no option for the controller driver to report the
recommended Best Effort Service Latency (BESL) when operating with LPM
support. Add new fields in usb_dcd_config_params to export the
recommended baseline and deep BESL values for the function drivers to
set the proper BESL value in the BOS descriptor.

Signed-off-by: Thinh Nguyen <thi...@synopsys.com>
---
 include/linux/usb/gadget.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index fb19141151d8..124462d65eac 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -291,6 +291,9 @@ struct usb_dcd_config_params {
 #define USB_DEFAULT_U1_DEV_EXIT_LAT    0x01    /* Less then 1 microsec */
        __le16 bU2DevExitLat;   /* U2 Device exit Latency */
 #define USB_DEFAULT_U2_DEV_EXIT_LAT    0x1F4   /* Less then 500 microsec */
+       __u8 besl_baseline;     /* Recommended baseline BESL (0-15) */
+       __u8 besl_deep;         /* Recommended deep BESL (0-15) */
+#define USB_DEFAULT_BESL_UNSPECIFIED   0xFF    /* No recommended value */
 };
 
 
-- 
2.11.0

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