linux-kernel - [PATCH 4.16 020/113] usb: typec: ucsi: Increase command completion timeout value

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Message-Id: <20180430184015.932987279@linuxfoundation.org>
Date:   Mon, 30 Apr 2018 12:23:51 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Quanxian Wang <quanxian.wang@...el.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Subject: [PATCH 4.16 020/113] usb: typec: ucsi: Increase command completion timeout value

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

commit b1b59e16075f5e5da2943ce8de724ab96bc3c6c2 upstream.

On some boards, under heavy load, the EC firmware is
unable to complete commands even in one second. Increasing
the command completion timeout value to five seconds.

Reported-by: Quanxian Wang <quanxian.wang@...el.com>
Fixes: c1b0bc2dabfa ("usb: typec: Add support for UCSI interface")
Cc: <stable@...r.kernel.org>
Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/typec/ucsi/ucsi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -28,7 +28,7 @@
  * difficult to estimate the time it takes for the system to process the command
  * before it is actually passed to the PPM.
  */
-#define UCSI_TIMEOUT_MS		1000
+#define UCSI_TIMEOUT_MS		5000
 
 /*
  * UCSI_SWAP_TIMEOUT_MS - Timeout for role swap requests