From 6016fffc275b368ec3620e4bb4fc28200b504751 Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Wed, 21 Jul 2021 15:30:35 -0700
Subject: drm/i915/dg2: Add fake PCH
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Git-commit: 3176fb663c0b0ea5d3edd179cb1252f680e55fbf
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
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>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210721223043.834562-11-matthew.d.roper@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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 896cd651b917..18045b7bdd6e 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -207,7 +207,7 @@ 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)
--
2.38.1