[PATCH v2 2/4] usb: aspeed-vhub: support auto remote wakeup feature

Neal Liu
2021-11-30T10:43:20Z

Remote wakeup signaling will be automatically issued
whenever any write commands has been received in suspend
state.

Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
---
drivers/usb/gadget/udc/aspeed-vhub/core.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/usb/gadget/udc/aspeed-vhub/core.c b/drivers/usb/gadget/udc/aspeed-vhub/core.c
index 7a635c499777..122ee7ef0b03 100644
--- a/drivers/usb/gadget/udc/aspeed-vhub/core.c
+++ b/drivers/usb/gadget/udc/aspeed-vhub/core.c
@@ -240,6 +240,9 @@ void ast_vhub_init_hw(struct ast_vhub *vhub)
if (vhub->force_usb1)
ctrl |= VHUB_CTRL_FULL_SPEED_ONLY;

+ /* Enable auto remote wakeup */
+ ctrl |= VHUB_CTRL_AUTO_REMOTE_WAKEUP;
+
ctrl |= VHUB_CTRL_UPSTREAM_CONNECT;
writel(ctrl, vhub->regs + AST_VHUB_CTRL);

--
2.25.1