diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 33bde1751679..1e0280e5c9c7 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13291,16 +13291,22 @@ intel_cleanup_plane_fb(struct drm_plane *plane, int skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state) { + struct drm_i915_private *dev_priv; int max_scale; - int crtc_clock, cdclk; + int crtc_clock, max_dotclk; if (!intel_crtc || !crtc_state->base.enable) return DRM_PLANE_HELPER_NO_SCALING; + dev_priv = to_i915(intel_crtc->base.dev); + crtc_clock = crtc_state->base.adjusted_mode.crtc_clock; - cdclk = to_intel_atomic_state(crtc_state->base.state)->cdclk.logical.cdclk; + max_dotclk = to_intel_atomic_state(crtc_state->base.state)->cdclk.logical.cdclk; + + if (IS_GEMINILAKE(dev_priv)) + max_dotclk *= 2; - if (WARN_ON_ONCE(!crtc_clock || cdclk < crtc_clock)) + if (WARN_ON_ONCE(!crtc_clock || max_dotclk < crtc_clock)) return DRM_PLANE_HELPER_NO_SCALING; /* @@ -13309,7 +13315,8 @@ skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state * or * cdclk/crtc_clock */ - max_scale = min((1 << 16) * 3 - 1, (1 << 8) * ((cdclk << 8) / crtc_clock)); + max_scale = min((1 << 16) * 3 - 1, + (1 << 8) * ((max_dotclk << 8) / crtc_clock)); return max_scale; } |