diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index dfd94c52a4cc..c837ded8e275 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4808,12 +4808,24 @@ static void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate) return; } - if (INTEL_INFO(dev)->gen > 6 && INTEL_INFO(dev)->gen < 8) { + if (INTEL_INFO(dev)->gen >= 8) { + switch (index) { + case DRRS_HIGH_RR: + intel_dp_set_m_n(intel_crtc, M1_N1); + break; + case DRRS_LOW_RR: + intel_dp_set_m_n(intel_crtc, M2_N2); + break; + case DRRS_MAX_RR: + default: + DRM_ERROR("Unsupported refreshrate type\n"); + } + } else if (INTEL_INFO(dev)->gen > 6) { reg = PIPECONF(intel_crtc->config->cpu_transcoder); val = I915_READ(reg); + if (index > DRRS_HIGH_RR) { val |= PIPECONF_EDP_RR_MODE_SWITCH; - intel_dp_set_m_n(intel_crtc); } else { val &= ~PIPECONF_EDP_RR_MODE_SWITCH; } |