[3.16.y-ckt stable] Patch "usb: musb: use new USB_RESUME_TIMEOUT" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Wed May 6 09:50:23 UTC 2015


This is a note to let you know that I have just added a patch titled

    usb: musb: use new USB_RESUME_TIMEOUT

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt11.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 6e134424b4f3eb9fcd930acdb09a49bd15b4eaa5 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi at ti.com>
Date: Fri, 13 Feb 2015 14:46:27 -0600
Subject: usb: musb: use new USB_RESUME_TIMEOUT

commit 309be239369609929d5d3833ee043f7c5afc95d1 upstream.

Make sure we're using the new macro, so our
resume signaling will always pass certification.

Based on original work by Bin Liu <Bin Liu <b-liu at ti.com>>

Cc: Bin Liu <b-liu at ti.com>
Signed-off-by: Felipe Balbi <balbi at ti.com>
[ luis: backported to 3.16:
  - only two msecs_to_jiffies() invocations
  - adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/usb/musb/musb_core.c    | 5 +++--
 drivers/usb/musb/musb_virthub.c | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 2281879278ed..e2c34c83f409 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -99,6 +99,7 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb.h>

 #include "musb_core.h"

@@ -477,10 +478,10 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 						(USB_PORT_STAT_C_SUSPEND << 16)
 						| MUSB_PORT_STAT_RESUME;
 				musb->rh_timer = jiffies
-						 + msecs_to_jiffies(20);
+					+ msecs_to_jiffies(USB_RESUME_TIMEOUT);
 				schedule_delayed_work(
 					&musb->finish_resume_work,
-					msecs_to_jiffies(20));
+					msecs_to_jiffies(USB_RESUME_TIMEOUT));

 				musb->xceiv->state = OTG_STATE_A_HOST;
 				musb->is_active = 1;
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index e2d2d8c9891b..0241a3a0d63e 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -136,7 +136,7 @@ void musb_port_suspend(struct musb *musb, bool do_suspend)
 		/* later, GetPortStatus will stop RESUME signaling */
 		musb->port1_status |= MUSB_PORT_STAT_RESUME;
 		schedule_delayed_work(&musb->finish_resume_work,
-				      msecs_to_jiffies(20));
+				      msecs_to_jiffies(USB_RESUME_TIMEOUT));
 	}
 }





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