On Mon, Jul 17, 2017 at 08:59:18PM +0000, Pandiyan, Dhinakaran wrote:
>
>
>
> On Mon, 2017-07-17 at 18:55 +0000, Pandiyan, Dhinakaran wrote:
> > Looks like a typo in
> >
> > cf54ca8 ("drm/i915/cnl: Implement voltage swing sequence.")
> >
> > but Cc'ing Rodrigo, Clint to make sure this wasn't a workaround.
> >
> > -DK
>
> Checked with Clint, this wasn't a workaround, a typo indeed.
>
>
Yup, Like I mentioned in the previous reply, I am positive that this should
return cnl_ddi_translations_edp_0_85 since I had discussed this with Rodrigo
while working on ddi buffer initialization.
Matthias, please go ahead and add the Fixes Tag like I mentioned in my previous
message. Thanks for catching this.
Manasi
>
> > On Mon, 2017-07-17 at 11:21 -0700, Matthias Kaehlcke wrote:
> > > For 0.85V cnl_get_buf_trans_edp() returns the DP table, instead of EDP.
> > > Use the correct table.
> > >
> > > The error was pointed out by this clang warning:
> > >
> > > drivers/gpu/drm/i915/intel_ddi.c:392:39: warning: variable
> > > 'cnl_ddi_translations_edp_0_85V' is not needed and will not be emitted
> > > [-Wunneeded-internal-declaration]
> > > static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_0_85V[] = {
> > >
> > > Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
> > > ---
> > > drivers/gpu/drm/i915/intel_ddi.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> > > index efb13582dc73..6fa02e6a7a9b 100644
> > > --- a/drivers/gpu/drm/i915/intel_ddi.c
> > > +++ b/drivers/gpu/drm/i915/intel_ddi.c
> > > @@ -1873,7 +1873,7 @@ cnl_get_buf_trans_edp(struct drm_i915_private *dev_priv,
> > > if (dev_priv->vbt.edp.low_vswing) {
> > > if (voltage == VOLTAGE_INFO_0_85V) {
> > > *n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_85V);
> > > - return cnl_ddi_translations_dp_0_85V;
> > > + return cnl_ddi_translations_edp_0_85V;
> > > } else if (voltage == VOLTAGE_INFO_0_95V) {
> > > *n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_95V);
> > > return cnl_ddi_translations_edp_0_95V;
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