Re: [PATCH 1/2] drm/i915/vlv: Make the vlv_dpio_read/vlv_dpio_write more PHY centric

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On Tue, 26 Nov 2013 15:10:22 -0800
Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote:

> On Mon, 11 Nov 2013 10:23:24 +0100
> Daniel Vetter <daniel@xxxxxxxx> wrote:
> 
> > On Wed, Nov 06, 2013 at 12:51:05PM +0200, Ville Syrjälä wrote:
> > > On Wed, Nov 06, 2013 at 02:36:35PM +0800, Chon Ming Lee wrote:
> > > > vlv_dpio_read/write should be describe more in PHY centric instead of
> > > > display controller centric.
> > > > Create a enum dpio_channel for channel index and enum dpio_phy for PHY
> > > > index.  This should better to gather for upcoming platform.
> > > > 
> > > > v2: Rebase the code based on
> > > > drm/i915/vlv: Fix typo in the DPIO register define.
> > > > 
> > > > v3: Rename vlv_phy to dpio_phy_iosf_port and define additional macro
> > > > DPIO_PHY, and remove unrelated change. (Ville)
> > > > 
> > > > Suggested-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > > > Signed-off-by: Chon Ming Lee <chon.ming.lee@xxxxxxxxx>
> > > 
> > > Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > 
> > Queued for -next, thanks for the patch.
> 
> Looks like this one gives me bogus DPIO values at least some of the
> time.  Reverting to using 0x12 as the port ID seems to get me valid
> values back...

Ah looks like the init_dpio happens too late for the mode state
readout.  I'll post a patch to move it up.

-- 
Jesse Barnes, Intel Open Source Technology Center
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