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From:   Aaron Ma <aaron.ma@canonical.com>
To:     aaron.ma@canonical.com, mathias.nyman@intel.com,
        gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] usb: xhci: fix timeout for transition from RExit to U0
Date:   Mon, 22 Oct 2018 01:08:45 +0800
Message-Id: <1540141725-13047-2-git-send-email-aaron.ma@canonical.com>
In-Reply-To: <1540141725-13047-1-git-send-email-aaron.ma@canonical.com>
References: <1540141725-13047-1-git-send-email-aaron.ma@canonical.com>
Sender: linux-kernel-owner@vger.kernel.org
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This definition is used by msecs_to_jiffies in milliseconds.
According to the comments, max rexit timeout should be 20ms.
Align with the comments to properly calculate the delay.

Verified on Sunrise Point-LP and Cannon Lake.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
---
 drivers/usb/host/xhci.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 6230a578324c..30225c53be1c 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1678,7 +1678,7 @@ struct xhci_bus_state {
  * It can take up to 20 ms to transition from RExit to U0 on the
  * Intel Lynx Point LP xHCI host.
  */
-#define	XHCI_MAX_REXIT_TIMEOUT	(20 * 1000)
+#define	XHCI_MAX_REXIT_TIMEOUT	20
 
 static inline unsigned int hcd_index(struct usb_hcd *hcd)
 {
-- 
2.19.1