| Message ID | 20250404-dprates-v5-1-c93f561a095e@intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Remove support for UHBR13.5 | expand |
On Fri, 04 Apr 2025, Arun R Murthy <arun.r.murthy@intel.com> wrote: > The retimer issue for UHBR13.5 is fixed in BMG. As I said before, I don't even know what "the retimer issue" was. It's never been explained anywhere. Please explain it to me. And don't send a new version of the patch. BR, Jani. > So for all platforms lesser than BMG(XE2_HPD/DISPLAY_VERx100 1401) > disable UHBR13.5. > commit caf3d748f646 ("drm/i915/dp: Remove support for UHBR13.5") > removes UHBR13.5 for MTL. > > v2: Reframed the commit msg (Jani) > v4: Reframed the commit msg & update the max rate supported (Jani) > v5: Reframed the commit msg (Jani) > > Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com> > --- > drivers/gpu/drm/i915/display/intel_dp.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c > index f21f9b441fc2a4e644c69410e6ec6b3d37907478..92bca701a989b03e2ad4b3d9e7d0a9ef12567e5a 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -481,7 +481,7 @@ bool intel_dp_has_joiner(struct intel_dp *intel_dp) > > static int dg2_max_source_rate(struct intel_dp *intel_dp) > { > - return intel_dp_is_edp(intel_dp) ? 810000 : 1350000; > + return intel_dp_is_edp(intel_dp) ? 810000 : 1000000; > } > > static int icl_max_source_rate(struct intel_dp *intel_dp) > @@ -550,7 +550,7 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp) > }; > static const int icl_rates[] = { > 162000, 216000, 270000, 324000, 432000, 540000, 648000, 810000, > - 1000000, 1350000, > + 1000000, > }; > static const int bxt_rates[] = { > 162000, 216000, 243000, 270000, 324000, 432000, 540000
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index f21f9b441fc2a4e644c69410e6ec6b3d37907478..92bca701a989b03e2ad4b3d9e7d0a9ef12567e5a 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -481,7 +481,7 @@ bool intel_dp_has_joiner(struct intel_dp *intel_dp) static int dg2_max_source_rate(struct intel_dp *intel_dp) { - return intel_dp_is_edp(intel_dp) ? 810000 : 1350000; + return intel_dp_is_edp(intel_dp) ? 810000 : 1000000; } static int icl_max_source_rate(struct intel_dp *intel_dp) @@ -550,7 +550,7 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp) }; static const int icl_rates[] = { 162000, 216000, 270000, 324000, 432000, 540000, 648000, 810000, - 1000000, 1350000, + 1000000, }; static const int bxt_rates[] = { 162000, 216000, 243000, 270000, 324000, 432000, 540000
The retimer issue for UHBR13.5 is fixed in BMG. So for all platforms lesser than BMG(XE2_HPD/DISPLAY_VERx100 1401) disable UHBR13.5. commit caf3d748f646 ("drm/i915/dp: Remove support for UHBR13.5") removes UHBR13.5 for MTL. v2: Reframed the commit msg (Jani) v4: Reframed the commit msg & update the max rate supported (Jani) v5: Reframed the commit msg (Jani) Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com> --- drivers/gpu/drm/i915/display/intel_dp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)