Re: patch input-wacom-switch-mode-upon-system-resume.patch added to2.6.33-stable tree

[Dmitry Torokhov]

On Tue, Apr 20, 2010 at 04:12:12PM -0700, Stefan Bader wrote:
> Greg KH wrote:
> > On Mon, Apr 19, 2010 at 10:24:41AM -0700, Dmitry Torokhov wrote:
> >> Greg,
> >>
> >> On Monday 19 April 2010 10:10:23 am gregkh@xxxxxxx wrote:
> >>> This is a note to let you know that we have just queued up the patch titled
> >>>
> >>>     Subject: Input: wacom - switch mode upon system resume
> >>>
> >>> to the 2.6.33-stable tree.  Its filename is
> >>>
> >>>     input-wacom-switch-mode-upon-system-resume.patch
> >>>
> >> Could you add this to .32 as well, please?
> > 
> > I looked, and it didn't seem to apply at all.  Can someone backport it
> > to .32 and I will be glad to apply it.
> > 
> 
> That would be my backport for .32, maybe Ping or Dmitry can sanity check.
> 

Yep, that exactly what Ping sent earlier, but since she favors wierd
mailers with HTML I guess her patch was dropped by vger filters ;)

Thanks Stefan.

Greg, please apply.

> Stefan
> 
> > thanks,
> > 
> > greg k-h
> > --
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> 
> 

> From 7021bbc3685fc147eb47deee345801ffb007a7e9 Mon Sep 17 00:00:00 2001
> From: Ping Cheng <pingc@xxxxxxxxx>
> Date: Tue, 13 Apr 2010 23:07:52 -0700
> Subject: [PATCH] Input: wacom - switch mode upon system resume
> 
> commit 014f61504af276ba9d9544d8a7401d8f8526eb73 upstream
> 
> When Wacom devices wake up from a sleep, the switch mode command
> (wacom_query_tablet_data) is needed before wacom_open is called.
> wacom_query_tablet_data should not be executed inside wacom_open
> since wacom_open is called more than once during probe.
> 
> wacom_retrieve_hid_descriptor is removed from wacom_resume due
> to the fact that the required descriptors are stored properly
> upon system resume.
> 
> Reported-and-tested-by: Anton Anikin <Anton@xxxxxxxxxxx>
> Signed-off-by: Ping Cheng <pingc@xxxxxxxxx>
> Cc: stable@xxxxxxxxxx
> Signed-off-by: Dmitry Torokhov <dtor@xxxxxxx>
> Signed-off-by: Stefan Bader <stefan.bader@xxxxxxxxxxxxx>
> ---
>  drivers/input/tablet/wacom_sys.c |   10 +++++++---
>  1 files changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
> index b5b69cc..5be07f9 100644
> --- a/drivers/input/tablet/wacom_sys.c
> +++ b/drivers/input/tablet/wacom_sys.c
> @@ -562,11 +562,15 @@ static int wacom_resume(struct usb_interface *intf)
>  	int rv;
>  
>  	mutex_lock(&wacom->lock);
> -	if (wacom->open) {
> +
> +	/* switch to wacom mode first */
> +	wacom_query_tablet_data(intf, features);
> +
> +	if (wacom->open)
>  		rv = usb_submit_urb(wacom->irq, GFP_NOIO);
> -		wacom_query_tablet_data(intf);
> -	} else
> +	else
>  		rv = 0;
> +
>  	mutex_unlock(&wacom->lock);
>  
>  	return rv;
> -- 
> 1.6.3.3
> 


-- 
Dmitry
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