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authorJohn Youn <John.Youn@synopsys.com>2016-02-05 17:06:35 -0800
committerFelipe Balbi <balbi@kernel.org>2016-03-04 15:14:24 +0200
commit554eead5436401ae3cfdb7d79fca24c14ebab143 (patch)
treefdd573b9709c377eb2952b8dd3bdefe19a74be79
parentusb: gadget: Update function for SuperSpeedPlus (diff)
downloadwireguard-linux-554eead5436401ae3cfdb7d79fca24c14ebab143.tar.xz
wireguard-linux-554eead5436401ae3cfdb7d79fca24c14ebab143.zip
usb: gadget: Update config for SuperSpeedPlus
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@synopsys.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
-rw-r--r--drivers/usb/gadget/composite.c2
-rw-r--r--drivers/usb/gadget/configfs.c1
-rw-r--r--include/linux/usb/composite.h1
3 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 11d243349ebf..560330f5457c 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 590c44989e5e..c6cc15ebeed6 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 9ff1e465d307..2b81b24eb5aa 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];
};