[PATCH 08/19] usb: gadget: Update config for SuperSpeedPlus

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When a function is added to a configuration with usb_add_function(), the
configuration speed flags are updated. These flags indicate for which
speeds the configuration is valid for.

This patch adds a flag in the configuration for SuperSpeedPlus and
also updates this based on the existence of ssp_descriptors.

Signed-off-by: John Youn <johnyoun@xxxxxxxxxxxx>
---
 drivers/usb/gadget/composite.c | 2 ++
 drivers/usb/gadget/configfs.c  | 1 +
 include/linux/usb/composite.h  | 1 +
 3 files changed, 4 insertions(+)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 11d2433..560330f 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -237,6 +237,8 @@ int usb_add_function(struct usb_configuration *config,
 		config->highspeed = true;
 	if (!config->superspeed && function->ss_descriptors)
 		config->superspeed = true;
+	if (!config->superspeed_plus && function->ssp_descriptors)
+		config->superspeed_plus = true;
 
 done:
 	if (value)
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 590c449..c6cc15e 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1229,6 +1229,7 @@ static void purge_configs_funcs(struct gadget_info *gi)
 		}
 		c->next_interface_id = 0;
 		memset(c->interface, 0, sizeof(c->interface));
+		c->superspeed_plus = 0;
 		c->superspeed = 0;
 		c->highspeed = 0;
 		c->fullspeed = 0;
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 9ff1e46..2b81b24 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -322,6 +322,7 @@ struct usb_configuration {
 	unsigned		superspeed:1;
 	unsigned		highspeed:1;
 	unsigned		fullspeed:1;
+	unsigned		superspeed_plus:1;
 	struct usb_function	*interface[MAX_CONFIG_INTERFACES];
 };
 
-- 
2.6.3

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