usb: dwc2: gadget: Add new core parameter for low speed
Added new core param for low speed, which can be used only when SNPSID
is equal to DWC2_CORE_FS_IOT. When LS mode is enabled, we are
restricting ep types and providing to upper layer only INTR and CTRL
endpoints.
Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 2fd461d..1bf3b09 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -742,14 +742,18 @@ static void dwc2_set_param_speed(struct dwc2_hsotg *hsotg, int val)
{
int valid = 1;
- if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) {
+ if (DWC2_OUT_OF_BOUNDS(val, 0, 2)) {
if (val >= 0) {
dev_err(hsotg->dev, "Wrong value for speed parameter\n");
- dev_err(hsotg->dev, "max_speed parameter must be 0 or 1\n");
+ dev_err(hsotg->dev, "max_speed parameter must be 0, 1, or 2\n");
}
valid = 0;
}
+ if (dwc2_is_hs_iot(hsotg) &&
+ val == DWC2_SPEED_PARAM_LOW)
+ valid = 0;
+
if (val == DWC2_SPEED_PARAM_HIGH &&
dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS)
valid = 0;