Em Ter, 2017-03-21 às 23:05 +0000, Pandiyan, Dhinakaran escreveu:
> On Tue, 2017-03-21 at 18:57 -0300, Paulo Zanoni wrote:
> >
> > Because {hsw,skl,bxt}_ddi_pll_select all pretty much do the same
> > thing
> > in slightly different ways. Replace everything with a simple copy
> > of
> > the function and inline it inside intle_ddi_pll_select().
> >
> > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
> > ---
> > drivers/gpu/drm/i915/intel_ddi.c | 58 +++++-----------------------
> > ------------
> > 1 file changed, 7 insertions(+), 51 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_ddi.c
> > b/drivers/gpu/drm/i915/intel_ddi.c
> > index d8214ba..bd6fd0b 100644
> > --- a/drivers/gpu/drm/i915/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/intel_ddi.c
> > @@ -1127,47 +1127,6 @@ void intel_ddi_clock_get(struct
> > intel_encoder *encoder,
> > bxt_ddi_clock_get(encoder, pipe_config);
> > }
> >
> > -static bool
> > -hsw_ddi_pll_select(struct intel_crtc *intel_crtc,
> > - struct intel_crtc_state *crtc_state,
> > - struct intel_encoder *encoder)
> > -{
> > - struct intel_shared_dpll *pll;
> > -
> > - pll = intel_get_shared_dpll(intel_crtc, crtc_state,
> > - encoder);
>
> I have a related question, not a patch review :) Looks like we care
> only
> about the boolean returned from intel_get_shared_dpll(). Could not
> find
> any caller that uses the returned 'struct intel_shared_dpll *'.
> Should
> it's signature be simply changed to return a bool?
There are only two callers. It would be possible to change the
signature, although I don't see many benefits from doing it now.
Perhaps it would be better to unify the error handling.
>
> -DK
> >
> > - if (!pll)
> > - DRM_DEBUG_DRIVER("failed to find PLL for pipe
> > %c\n",
> > - pipe_name(intel_crtc->pipe));
> > -
> > - return pll;
> > -}
> > -
> > -static bool
> > -skl_ddi_pll_select(struct intel_crtc *intel_crtc,
> > - struct intel_crtc_state *crtc_state,
> > - struct intel_encoder *encoder)
> > -{
> > - struct intel_shared_dpll *pll;
> > -
> > - pll = intel_get_shared_dpll(intel_crtc, crtc_state,
> > encoder);
> > - if (pll == NULL) {
> > - DRM_DEBUG_DRIVER("failed to find PLL for pipe
> > %c\n",
> > - pipe_name(intel_crtc->pipe));
> > - return false;
> > - }
> > -
> > - return true;
> > -}
> > -
> > -static bool
> > -bxt_ddi_pll_select(struct intel_crtc *intel_crtc,
> > - struct intel_crtc_state *crtc_state,
> > - struct intel_encoder *encoder)
> > -{
> > - return !!intel_get_shared_dpll(intel_crtc, crtc_state,
> > encoder);
> > -}
> > -
> > /*
> > * Tries to find a *shared* PLL for the CRTC and store it in
> > * intel_crtc->ddi_pll_sel.
> > @@ -1178,19 +1137,16 @@ bxt_ddi_pll_select(struct intel_crtc
> > *intel_crtc,
> > bool intel_ddi_pll_select(struct intel_crtc *intel_crtc,
> > struct intel_crtc_state *crtc_state)
> > {
> > - struct drm_i915_private *dev_priv = to_i915(intel_crtc-
> > >base.dev);
> > struct intel_encoder *encoder =
> > intel_ddi_get_crtc_new_encoder(crtc_state);
> > + struct intel_shared_dpll *pll;
> >
> > - if (IS_GEN9_BC(dev_priv))
> > - return skl_ddi_pll_select(intel_crtc, crtc_state,
> > - encoder);
> > - else if (IS_GEN9_LP(dev_priv))
> > - return bxt_ddi_pll_select(intel_crtc, crtc_state,
> > - encoder);
> > - else
> > - return hsw_ddi_pll_select(intel_crtc, crtc_state,
> > - encoder);
> > + pll = intel_get_shared_dpll(intel_crtc, crtc_state,
> > encoder);
> > + if (!pll)
> > + DRM_DEBUG_DRIVER("failed to find PLL for pipe
> > %c\n",
> > + pipe_name(intel_crtc->pipe));
> > +
> > + return pll;
> > }
> >
> > void intel_ddi_set_pipe_settings(const struct intel_crtc_state
> > *crtc_state)
>
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