As with DG1, DG2 has an ICL-style south display interface provided on the same PCI device. Add a fake PCH to ensure DG2 takes the appropriate codepaths for south display handling.
Bspec: 54871, 50062, 49961, 53673 Cc: Lucas De Marchi lucas.demarchi@intel.com Signed-off-by: Matt Roper matthew.d.roper@intel.com Signed-off-by: Aditya Swarup aditya.swarup@intel.com Signed-off-by: José Roberto de Souza jose.souza@intel.com --- drivers/gpu/drm/i915/i915_irq.c | 2 +- drivers/gpu/drm/i915/intel_pch.c | 3 +++ drivers/gpu/drm/i915/intel_pch.h | 2 ++ 3 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 9d47ffa39093..34a0d49e760e 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -208,7 +208,7 @@ static void intel_hpd_init_pins(struct drm_i915_private *dev_priv) (!HAS_PCH_SPLIT(dev_priv) || HAS_PCH_NOP(dev_priv))) return;
- if (HAS_PCH_DG1(dev_priv)) + if (INTEL_PCH_TYPE(dev_priv) >= PCH_DG1) hpd->pch_hpd = hpd_sde_dg1; else if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP) hpd->pch_hpd = hpd_icp; diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c index 4e92ae19189e..cc44164e242b 100644 --- a/drivers/gpu/drm/i915/intel_pch.c +++ b/drivers/gpu/drm/i915/intel_pch.c @@ -211,6 +211,9 @@ void intel_detect_pch(struct drm_i915_private *dev_priv) if (IS_DG1(dev_priv)) { dev_priv->pch_type = PCH_DG1; return; + } else if (IS_DG2(dev_priv)) { + dev_priv->pch_type = PCH_DG2; + return; }
/* diff --git a/drivers/gpu/drm/i915/intel_pch.h b/drivers/gpu/drm/i915/intel_pch.h index e2f3f30c6445..7c0d83d292dc 100644 --- a/drivers/gpu/drm/i915/intel_pch.h +++ b/drivers/gpu/drm/i915/intel_pch.h @@ -30,6 +30,7 @@ enum intel_pch {
/* Fake PCHs, functionality handled on the same PCI dev */ PCH_DG1 = 1024, + PCH_DG2, };
#define INTEL_PCH_DEVICE_ID_MASK 0xff80 @@ -62,6 +63,7 @@ enum intel_pch {
#define INTEL_PCH_TYPE(dev_priv) ((dev_priv)->pch_type) #define INTEL_PCH_ID(dev_priv) ((dev_priv)->pch_id) +#define HAS_PCH_DG2(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_DG2) #define HAS_PCH_ADP(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_ADP) #define HAS_PCH_DG1(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_DG1) #define HAS_PCH_JSP(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_JSP)