num_pipes is set to 0 if disable_display is set inside intel_device_info_runtime_init() but when that happen PCH will already be set in intel_detect_pch().
i915_driver_load() i915_driver_init_early() ... intel_detect_pch() ... ... i915_driver_init_hw() intel_device_info_runtime_init()
Cc: Jani Nikula jani.nikula@intel.com Signed-off-by: José Roberto de Souza jose.souza@intel.com --- drivers/gpu/drm/i915/i915_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 3834bd758a2e..99792039176f 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -287,7 +287,8 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) * Use PCH_NOP (PCH but no South Display) for PCH platforms without * display. */ - if (pch && INTEL_INFO(dev_priv)->num_pipes == 0) { + if (pch && ((INTEL_INFO(dev_priv)->num_pipes == 0) || + i915_modparams.disable_display)) { DRM_DEBUG_KMS("Display disabled, reverting to NOP PCH\n"); dev_priv->pch_type = PCH_NOP; dev_priv->pch_id = 0;