[PATCH v2 2/4] usb: aspeed-vhub: support auto remote wakeup feature
From: Neal Liu <neal_liu@aspeedtech.com>
Date: 2021-11-30 10:44:45
Also in:
linux-arm-kernel, linux-aspeed, lkml
Subsystem:
the rest, usb subsystem · Maintainers:
Linus Torvalds, Greg Kroah-Hartman
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