Re: [PATCH v2 1/5] drm/vc4: Fix TILE_Y_OFFSET definitions

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On Fri, 24 Aug 2018 09:09:26 +0200
Boris Brezillon <boris.brezillon@xxxxxxxxxxx> wrote:

> On Fri,  3 Aug 2018 11:22:27 +0200
> Boris Brezillon <boris.brezillon@xxxxxxxxxxx> wrote:
> 
> > From: Eric Anholt <eric@xxxxxxxxxx>
> > 
> > Y_OFFSET field starts at bit 8 not 7.
> > 
> > Signed-off-by: Eric Anholt <eric@xxxxxxxxxx>
> > Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxx>  
> 
> As discussed with Eric 2 weeks ago, I'm about to apply this series to
> drm-misc-fixes. The rational behind this decision is that those patches
> are actually fixing the driver, even though they don't all have Fixes
> and Cc-stable tags.
> 
> Daniel, any objection?

Actually it conflicts in a few places because this series was based on
drm-misc-next, so I'll wait for 4.19-rc1 to be back-merged in
drm-misc-fixes before applying the patchset.

> 
> > ---
> > Changes in v2:
> > - None
> > ---
> >  drivers/gpu/drm/vc4/vc4_regs.h | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h
> > index d6864fa4bd14..ccbd6b377ffe 100644
> > --- a/drivers/gpu/drm/vc4/vc4_regs.h
> > +++ b/drivers/gpu/drm/vc4/vc4_regs.h
> > @@ -1043,8 +1043,8 @@ enum hvs_pixel_format {
> >  #define SCALER_PITCH0_TILE_LINE_DIR		BIT(15)
> >  #define SCALER_PITCH0_TILE_INITIAL_LINE_DIR	BIT(14)
> >  /* Y offset within a tile. */
> > -#define SCALER_PITCH0_TILE_Y_OFFSET_MASK	VC4_MASK(13, 7)
> > -#define SCALER_PITCH0_TILE_Y_OFFSET_SHIFT	7
> > +#define SCALER_PITCH0_TILE_Y_OFFSET_MASK	VC4_MASK(13, 8)
> > +#define SCALER_PITCH0_TILE_Y_OFFSET_SHIFT	8
> >  #define SCALER_PITCH0_TILE_WIDTH_R_MASK		VC4_MASK(6, 0)
> >  #define SCALER_PITCH0_TILE_WIDTH_R_SHIFT	0
> >    
> 

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