Direction on gen9+ was to stop reading the straps and only rely on the VBT for marking the port presence. This happened while dealing with WaIgnoreDDIAStrap and instead of using it as a WA, it should now be the normal flow. See commit 885d3e5b6f08 ("drm/i915/display: fix comment on skl straps"). For gen 10 it's hard to say if this will work or not since I can't test it, so leave it with the same behavior as before. For PCH_TGP we should still rely on the VBT to make ports E and F not available. Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_display.c | 36 ++++++-------------- 1 file changed, 11 insertions(+), 25 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index c1ec03c726c9..21087169f63a 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -11919,34 +11919,25 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv) intel_ddi_init(dev_priv, PORT_B); intel_ddi_init(dev_priv, PORT_C); vlv_dsi_init(dev_priv); + } else if (IS_GEN(dev_priv, 9)) { + intel_ddi_init(dev_priv, PORT_A); + intel_ddi_init(dev_priv, PORT_B); + intel_ddi_init(dev_priv, PORT_C); + intel_ddi_init(dev_priv, PORT_D); + intel_ddi_init(dev_priv, PORT_E); + intel_ddi_init(dev_priv, PORT_F); } else if (HAS_DDI(dev_priv)) { - int found; + u32 found; if (intel_ddi_crt_present(dev_priv)) intel_crt_init(dev_priv); - /* - * Haswell uses DDI functions to detect digital outputs. - * On SKL pre-D0 the strap isn't connected. Later SKUs may or - * may not have it - it was supposed to be fixed by the same - * time we stopped using straps. Assume it's there. - */ + /* Haswell uses DDI functions to detect digital outputs. */ found = intel_de_read(dev_priv, DDI_BUF_CTL(PORT_A)) & DDI_INIT_DISPLAY_DETECTED; - /* WaIgnoreDDIAStrap: skl */ - if (found || IS_GEN9_BC(dev_priv)) + if (found) intel_ddi_init(dev_priv, PORT_A); - /* DDI B, C, D, and F detection is indicated by the SFUSE_STRAP - * register */ - if (HAS_PCH_TGP(dev_priv)) { - /* W/A due to lack of STRAP config on TGP PCH*/ - found = (SFUSE_STRAP_DDIB_DETECTED | - SFUSE_STRAP_DDIC_DETECTED | - SFUSE_STRAP_DDID_DETECTED); - } else { - found = intel_de_read(dev_priv, SFUSE_STRAP); - } - + found = intel_de_read(dev_priv, SFUSE_STRAP); if (found & SFUSE_STRAP_DDIB_DETECTED) intel_ddi_init(dev_priv, PORT_B); if (found & SFUSE_STRAP_DDIC_DETECTED) @@ -11955,11 +11946,6 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv) intel_ddi_init(dev_priv, PORT_D); if (found & SFUSE_STRAP_DDIF_DETECTED) intel_ddi_init(dev_priv, PORT_F); - /* - * On SKL we don't have a way to detect DDI-E so we rely on VBT. - */ - if (IS_GEN9_BC(dev_priv)) - intel_ddi_init(dev_priv, PORT_E); } else if (HAS_PCH_SPLIT(dev_priv)) { int found; -- 2.29.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx