On Thu, Sep 24, 2015 at 02:12:02PM +0300, Imre Deak wrote:
> On to, 2015-09-24 at 10:22 +0530, Sonika Jindal wrote:
> > Bspec update tells that we have to enable oscaledcompmethod instead of
> > ouniqetrangenmethod for enabling scale value during swing programming.
> >
> > v2: Adding back 'don't care' values to bxt_ddi_translations_dp and add
> > error message if ouniquetrangemethod was set (Imre)
> >
> > Signed-off-by: Sonika Jindal <[email protected]>
> > Reviewed-by: Sivakumar Thulasimani <[email protected]>(v1)
>
> Reviewed-by: Imre Deak <[email protected]>
Queued for -next, thanks for the patch.
-Daniel
>
> > ---
> > drivers/gpu/drm/i915/i915_reg.h | 3 ++-
> > drivers/gpu/drm/i915/intel_ddi.c | 8 ++++++--
> > 2 files changed, 8 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_reg.h
> > b/drivers/gpu/drm/i915/i915_reg.h
> > index 812b7b2..3f2135d 100644
> > --- a/drivers/gpu/drm/i915/i915_reg.h
> > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > @@ -1395,7 +1395,8 @@ enum skl_disp_power_wells {
> > #define BXT_PORT_TX_DW3_LN0(port) _PORT3(port, _PORT_TX_DW3_LN0_A, \
> > _PORT_TX_DW3_LN0_B, \
> > _PORT_TX_DW3_LN0_C)
> > -#define UNIQE_TRANGE_EN_METHOD (1 << 27)
> > +#define SCALE_DCOMP_METHOD (1 << 26)
> > +#define UNIQUE_TRANGE_EN_METHOD (1 << 27)
> >
> > #define _PORT_TX_DW4_LN0_A 0x162510
> > #define _PORT_TX_DW4_LN0_B 0x6C510
> > diff --git a/drivers/gpu/drm/i915/intel_ddi.c
> > b/drivers/gpu/drm/i915/intel_ddi.c
> > index fec51df..7705bc9 100644
> > --- a/drivers/gpu/drm/i915/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/intel_ddi.c
> > @@ -2151,9 +2151,13 @@ static void bxt_ddi_vswing_sequence(struct
> > drm_device *dev, u32 level,
> > I915_WRITE(BXT_PORT_TX_DW2_GRP(port), val);
> >
> > val = I915_READ(BXT_PORT_TX_DW3_LN0(port));
> > - val &= ~UNIQE_TRANGE_EN_METHOD;
> > + val &= ~SCALE_DCOMP_METHOD;
> > if (ddi_translations[level].enable)
> > - val |= UNIQE_TRANGE_EN_METHOD;
> > + val |= SCALE_DCOMP_METHOD;
> > +
> > + if ((val & UNIQUE_TRANGE_EN_METHOD) && !(val & SCALE_DCOMP_METHOD))
> > + DRM_ERROR("Disabled scaling while ouniqetrangenmethod was set");
> > +
> > I915_WRITE(BXT_PORT_TX_DW3_GRP(port), val);
> >
> > val = I915_READ(BXT_PORT_TX_DW4_LN0(port));
>
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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