diff mbox

[v6,1/5] usb: musb: core: Handle Babble condition only in HOST mode

Message ID 1401096012-6895-2-git-send-email-george.cherian@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

George Cherian May 26, 2014, 9:20 a.m. UTC
BABBLE and RESET share the same interrupt. The interrupt
is considered to be RESET if MUSB is in peripheral mode and
as a BABBLE if MUSB is in HOST mode.

Handle babble condition iff MUSB is in HOST mode.

Signed-off-by: George Cherian <george.cherian@ti.com>
---
 drivers/usb/musb/musb_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Tony Lindgren June 19, 2014, 10:44 a.m. UTC | #1
* George Cherian <george.cherian@ti.com> [140526 02:25]:
> BABBLE and RESET share the same interrupt. The interrupt
> is considered to be RESET if MUSB is in peripheral mode and
> as a BABBLE if MUSB is in HOST mode.
> 
> Handle babble condition iff MUSB is in HOST mode.

Please get this into mainline kernel for v3.16-rc.

Fixes: ca88fc2ef0d7 (usb: musb: add a work_struct to recover from babble errors)

Tested-by: Tony Lindgren <tony@atomide.com>
 
> Signed-off-by: George Cherian <george.cherian@ti.com>
> ---
>  drivers/usb/musb/musb_core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
> index 3c6043c..0ad9551 100644
> --- a/drivers/usb/musb/musb_core.c
> +++ b/drivers/usb/musb/musb_core.c
> @@ -849,7 +849,7 @@ b_host:
>  	}
>  
>  	/* handle babble condition */
> -	if (int_usb & MUSB_INTR_BABBLE)
> +	if (int_usb & MUSB_INTR_BABBLE && is_host_active(musb))
>  		schedule_work(&musb->recover_work);
>  
>  #if 0
> -- 
> 1.8.3.1
> 
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Felipe Balbi June 19, 2014, 4:01 p.m. UTC | #2
Hi,

On Thu, Jun 19, 2014 at 03:44:42AM -0700, Tony Lindgren wrote:
> * George Cherian <george.cherian@ti.com> [140526 02:25]:
> > BABBLE and RESET share the same interrupt. The interrupt
> > is considered to be RESET if MUSB is in peripheral mode and
> > as a BABBLE if MUSB is in HOST mode.
> > 
> > Handle babble condition iff MUSB is in HOST mode.
> 
> Please get this into mainline kernel for v3.16-rc.

will do. Finishing up my series of build-tests, you should receive
confirmation that the patch applied in a few hours.
diff mbox

Patch

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 3c6043c..0ad9551 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -849,7 +849,7 @@  b_host:
 	}
 
 	/* handle babble condition */
-	if (int_usb & MUSB_INTR_BABBLE)
+	if (int_usb & MUSB_INTR_BABBLE && is_host_active(musb))
 		schedule_work(&musb->recover_work);
 
 #if 0