Agreed .We don't need this

Thanks
Minu

-----Original Message-----
From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] 
Sent: Tuesday, June 9, 2015 1:17 PM
To: Mathai, Minu
Cc: Jani Nikula; intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH] drm/i915: Correcting the reg definitions for 
PORT_DFT

On Tue, Jun 09, 2015 at 12:06:36PM +0000, Mathai, Minu wrote:
> The hardware composer test which found the problem with this register 
> definition is used in Android testing and isn't open source. 
> However fixing this register definition will stop potential problems for  
> future use cases and would reduce the rebase effort for our Android tree.

What are you testing with this register? The register isn't even listed in any 
VLV/CHV documentation so I have no idea what you would even do with it.

> 
> -----Original Message-----
> From: Jani Nikula [mailto:jani.nik...@linux.intel.com]
> Sent: Monday, June 8, 2015 2:48 PM
> To: Mathai, Minu; Ville Syrjälä
> Cc: intel-gfx@lists.freedesktop.org
> Subject: Re: [Intel-gfx] [PATCH] drm/i915: Correcting the reg 
> definitions for PORT_DFT
> 
> On Mon, 08 Jun 2015, "Mathai, Minu" <minu.mat...@intel.com> wrote:
> > This change is needed for some hardware composer tests in chv.
> 
> As Ville said, this #define is not used by the upstream kernel on byt/chv. 
> Maybe you have some out-of-tree patches using that?
> 
> BR,
> Jani.
> 
> 
> >
> > -----Original Message-----
> > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com]
> > Sent: Friday, June 5, 2015 2:08 PM
> > To: Mathai, Minu
> > Cc: intel-gfx@lists.freedesktop.org
> > Subject: Re: [Intel-gfx] [PATCH] drm/i915: Correcting the reg 
> > definitions for PORT_DFT
> >
> > On Fri, Jun 05, 2015 at 02:00:24PM +0100, Minu Mathai wrote:
> >> From: Minu <minu.mat...@intel.com>
> >> 
> >> Display CRCs were not readable because the register defintions for 
> >> PORT_DFT_I9XX and PORT_DFT2_G4X were wrong.
> >> MMIO offset needs to be added to these register offsets to fix them.
> >> 
> >> Issue: GMINL-6869
> >> Signed-off-by: Minu Mathai <minu.mat...@intel.com>
> >> ---
> >>  drivers/gpu/drm/i915/i915_reg.h | 2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >> 
> >> diff --git a/drivers/gpu/drm/i915/i915_reg.h 
> >> b/drivers/gpu/drm/i915/i915_reg.h index 7213224..c327c7c 100644
> >> --- a/drivers/gpu/drm/i915/i915_reg.h
> >> +++ b/drivers/gpu/drm/i915/i915_reg.h
> >> @@ -3193,7 +3193,7 @@ enum skl_disp_power_wells {
> >>  #define PCH_HDMIC 0xe1150
> >>  #define PCH_HDMID 0xe1160
> >>  
> >> -#define PORT_DFT_I9XX                             0x61150
> >> +#define PORT_DFT_I9XX                             
> >> (dev_priv->info.display_mmio_offset + 0x61150)
> >
> > PORT_DFT_I9XX isn't used on VLV/CHV, so this doesn't change anything.
> >
> >
> >>  #define   DC_BALANCE_RESET                        (1 << 25)
> >>  #define PORT_DFT2_G4X             (dev_priv->info.display_mmio_offset + 
> >> 0x61154)
> >>  #define   DC_BALANCE_RESET_VLV                    (1 << 31)
> >> --
> >> 1.9.1
> >> 
> >> -------------------------------------------------------------------
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> >
> > --
> > Ville Syrjälä
> > Intel OTC
> > _______________________________________________
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> > Intel-gfx@lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> --
> Jani Nikula, Intel Open Source Technology Center

--
Ville Syrjälä
Intel OTC
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