From fc603ca7f81d729bbec7ced294f25a93113c49f7 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 9 Oct 2017 12:29:58 +0300 Subject: [PATCH] drm/i915/dp: centralize max source rate conditions more Turn intel_dp_source_supports_hbr2() into a simple helper to query the pre-filled source rates array, and move the conditions about which platforms support which rates to the single point of truth in intel_dp_set_source_rates(). This also reduces the code paths you have to think about in the source rates initialization in intel_dp_set_source_rates(), making it easier to grasp. Cc: Manasi Navare Reviewed-by: Manasi Navare Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20171009092959.29021-2-jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index ca48bce23a6f..09d75df497c0 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -254,15 +254,15 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp) } else if (IS_GEN9_BC(dev_priv)) { source_rates = skl_rates; size = ARRAY_SIZE(skl_rates); - } else { + } else if ((IS_HASWELL(dev_priv) && !IS_HSW_ULX(dev_priv)) || + IS_BROADWELL(dev_priv)) { source_rates = default_rates; size = ARRAY_SIZE(default_rates); + } else { + source_rates = default_rates; + size = ARRAY_SIZE(default_rates) - 1; } - /* This depends on the fact that 5.4 is last value in the array */ - if (!intel_dp_source_supports_hbr2(intel_dp)) - size--; - intel_dp->source_rates = source_rates; intel_dp->num_source_rates = size; } @@ -1482,14 +1482,9 @@ intel_dp_aux_init(struct intel_dp *intel_dp) bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp) { - struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev); + int max_rate = intel_dp->source_rates[intel_dp->num_source_rates - 1]; - if ((IS_HASWELL(dev_priv) && !IS_HSW_ULX(dev_priv)) || - IS_BROADWELL(dev_priv) || (INTEL_GEN(dev_priv) >= 9)) - return true; - else - return false; + return max_rate >= 540000; } static void