[PATCH v2 4/4] usb: dwc2: host: add TPL support

[Fabrice Gasnier]

From: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx>

The Target Peripheral List (TPL) is used to identify targeted devices
during Embedded Host compliance testing. The user can add "tpl-support"
in the device tree to enable it.

Signed-off-by: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
---
Changes in v2:
- added dt-bindings precursor patch
- update commit message to clarify TPL and EH meaning
---
 drivers/usb/dwc2/hcd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index f63a27d11fac8..4567f3c24d225 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -52,6 +52,7 @@
 
 #include <linux/usb/hcd.h>
 #include <linux/usb/ch11.h>
+#include <linux/usb/of.h>
 
 #include "core.h"
 #include "hcd.h"
@@ -5339,6 +5340,8 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg)
 	/* Don't support SG list at this point */
 	hcd->self.sg_tablesize = 0;
 
+	hcd->tpl_support = of_usb_host_tpl_support(hsotg->dev->of_node);
+
 	if (!IS_ERR_OR_NULL(hsotg->uphy))
 		otg_set_host(hsotg->uphy->otg, &hcd->self);
 
-- 
2.25.1