> -----Original Message----- > From: Intel-gfx <[email protected]> On Behalf Of Imre > Deak > Sent: Tuesday, 16 June 2026 23.09 > To: [email protected]; [email protected] > Subject: [PATCH v2 16/28] drm/i915/dp_link_caps: Add helper to get the number > of supported link rates > > Add intel_dp_link_caps_num_common_rates() to return the number of > supported link rates tracked by the link_caps module. This prepares for > tracking these capabilities internally within the link caps module. >
Reviewed-by: Mika Kahola <[email protected]> > Signed-off-by: Imre Deak <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_dp.c | 4 ++-- > drivers/gpu/drm/i915/display/intel_dp_link_caps.c | 5 +++++ > drivers/gpu/drm/i915/display/intel_dp_link_caps.h | 1 + > 3 files changed, 8 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c > b/drivers/gpu/drm/i915/display/intel_dp.c > index f9c3d3561c417..84640c8394534 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -1766,7 +1766,7 @@ intel_dp_compute_link_config_wide(struct intel_dp > *intel_dp, > int link_bpp_x16 = > > intel_dp_output_format_link_bpp_x16(pipe_config->output_format, bpp); > > - for (i = 0; i < intel_dp->num_common_rates; i++) { > + for (i = 0; i < > intel_dp_link_caps_num_common_rates(intel_dp->link.caps); i++) { > link_rate = intel_dp_common_rate(intel_dp, i); > if (link_rate < limits->min_rate || > link_rate > limits->max_rate) > @@ -1995,7 +1995,7 @@ static int dsc_compute_link_config(struct intel_dp > *intel_dp, > int link_rate, lane_count; > int i; > > - for (i = 0; i < intel_dp->num_common_rates; i++) { > + for (i = 0; i < > intel_dp_link_caps_num_common_rates(intel_dp->link.caps); i++) { > link_rate = intel_dp_common_rate(intel_dp, i); > if (link_rate < limits->min_rate || link_rate > > limits->max_rate) > continue; > diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_caps.c > b/drivers/gpu/drm/i915/display/intel_dp_link_caps.c > index 13f9bfd5d7bad..09b60a0cd6fbb 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp_link_caps.c > +++ b/drivers/gpu/drm/i915/display/intel_dp_link_caps.c > @@ -67,6 +67,11 @@ int intel_dp_max_common_rate(struct intel_dp *intel_dp) > return intel_dp_common_rate(intel_dp, intel_dp->num_common_rates - 1); > } > > +int intel_dp_link_caps_num_common_rates(struct intel_dp_link_caps *link_caps) > +{ > + return link_caps->dp->num_common_rates; > +} > + > void intel_dp_link_caps_print_common_rates(struct intel_dp_link_caps > *link_caps) > { > struct intel_dp *intel_dp = link_caps->dp; > diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_caps.h > b/drivers/gpu/drm/i915/display/intel_dp_link_caps.h > index 7333df6b82f97..3413f6f760453 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp_link_caps.h > +++ b/drivers/gpu/drm/i915/display/intel_dp_link_caps.h > @@ -15,6 +15,7 @@ int intel_dp_common_len_rate_limit(const struct intel_dp > *intel_dp, > int max_rate); > int intel_dp_common_rate(struct intel_dp *intel_dp, int index); > int intel_dp_max_common_rate(struct intel_dp *intel_dp); > +int intel_dp_link_caps_num_common_rates(struct intel_dp_link_caps > *link_caps); > > void intel_dp_link_caps_print_common_rates(struct intel_dp_link_caps > *link_caps); > > -- > 2.49.1
