diff mbox series

[3/3] usb: dwc2: host: add TPL support

Message ID 20220621130506.85424-4-fabrice.gasnier@foss.st.com (mailing list archive)
State New, archived
Headers show
Series usb: host: add TPL support to ehci ohci and dwc2 | expand

Commit Message

Fabrice Gasnier June 21, 2022, 1:05 p.m. UTC 
From: Amelie Delaunay <amelie.delaunay@foss.st.com>

The TPL support is used to identify targeted devices during EH compliance
test. The user can add "tpl-support" in the device tree to enable it.

Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
---
 drivers/usb/dwc2/hcd.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Greg KH June 21, 2022, 2:24 p.m. UTC | #1 
On Tue, Jun 21, 2022 at 03:05:06PM +0200, Fabrice Gasnier wrote:
> From: Amelie Delaunay <amelie.delaunay@foss.st.com>
> 
> The TPL support is used to identify targeted devices during EH compliance
> test. The user can add "tpl-support" in the device tree to enable it.

Is that already documented in the proper bindings somewhere?

thanks,

greg k-h
diff mbox series

Patch

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);