linux-kernel - Re: [PATCH v2] Input: goodix - Fix touch coords on WinBook TW100 and TW700

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Date:	Fri, 24 Jul 2015 09:08:02 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Bastien Nocera <hadess@...ess.net>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] Input: goodix - Fix touch coords on WinBook TW100 and
 TW700

On Fri, Jul 24, 2015 at 01:13:24PM +0200, Bastien Nocera wrote:
> On Thu, 2015-07-23 at 14:56 -0700, Dmitry Torokhov wrote:
> > Hi Bastien,
> > 
> > On Thu, Jul 23, 2015 at 04:13:28PM +0200, Bastien Nocera wrote:
> > > The touchscreen on the WinBook TW100 and TW700 don't match the 
> > > default
> > > display, with 0,0 touches being reported when touching at the 
> > > bottom
> > > right of the screen.
> > > 
> > >   1280,800             0,800
> > >          +-------------+
> > >          |             |
> > >          |             |
> > >          |             |
> > >          +-------------+
> > >     1280,0             0,0
> > > 
> > > It's unfortunately impossible to detect this problem with data from 
> > > the
> > > DSDT, or other auxiliary metadata, so fallback to quirking this 
> > > specific
> > > model of tablet instead.
> > > 
> > > Signed-off-by: Bastien Nocera <hadess@...ess.net>
> > > Reviewed-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
> > > ---
> > >  drivers/input/touchscreen/goodix.c | 31 
> > > +++++++++++++++++++++++++++++++
> > >  1 file changed, 31 insertions(+)
> > > 
> > > diff --git a/drivers/input/touchscreen/goodix.c 
> > > b/drivers/input/touchscreen/goodix.c
> > > index b4d12e2..3722806 100644
> > > --- a/drivers/input/touchscreen/goodix.c
> > > +++ b/drivers/input/touchscreen/goodix.c
> > > @@ -15,6 +15,7 @@
> > >   */
> > >  
> > >  #include <linux/kernel.h>
> > > +#include <linux/dmi.h>
> > >  #include <linux/i2c.h>
> > >  #include <linux/input.h>
> > >  #include <linux/input/mt.h>
> > > @@ -34,6 +35,7 @@ struct goodix_ts_data {
> > >  	int abs_y_max;
> > >  	unsigned int max_touch_num;
> > >  	unsigned int int_trigger_type;
> > > +	bool rotated_screen;
> > >  };
> > >  
> > >  #define GOODIX_MAX_HEIGHT		4096
> > > @@ -60,6 +62,24 @@ static const unsigned long goodix_irq_flags[] = 
> > > {
> > >  	IRQ_TYPE_LEVEL_HIGH,
> > >  };
> > >  
> > > +/* Those tablets have their coords origin at the bottom right
> > > + * of the tablet, as if rotated 180 degrees */
> > 
> > /*
> >  * Multi
> >  * line
> >  * comment
> >  */
> > 
> > please.
> 
> Would be good if checkpatch could check for that, or is it a personal
> request?

CodingStyle chapter 8.

Thanks.

-- 
Dmitry
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