HDCP could be fused off, so not all GEN9+ platforms will support it.

Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Cc: Martin Peres <martin.pe...@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.so...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdcp.c | 2 +-
 drivers/gpu/drm/i915/i915_pci.c           | 2 ++
 drivers/gpu/drm/i915/i915_reg.h           | 1 +
 drivers/gpu/drm/i915/intel_device_info.c  | 3 +++
 drivers/gpu/drm/i915/intel_device_info.h  | 1 +
 5 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c 
b/drivers/gpu/drm/i915/display/intel_hdcp.c
index e69fa34528df..f1f41ca8402b 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -922,7 +922,7 @@ static void intel_hdcp_prop_work(struct work_struct *work)
 bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port)
 {
        /* PORT E doesn't have HDCP, and PORT F is disabled */
-       return INTEL_GEN(dev_priv) >= 9 && port < PORT_E;
+       return INTEL_INFO(dev_priv)->display.has_hdcp && port < PORT_E;
 }
 
 static int
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index f9a3bfe68689..f2280709c8c9 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -612,6 +612,7 @@ static const struct intel_device_info intel_cherryview_info 
= {
        .has_logical_ring_preemption = 1, \
        .display.has_csr = 1, \
        .has_gt_uc = 1, \
+       .display.has_hdcp = 1, \
        .display.has_ipc = 1, \
        .ddb_size = 896
 
@@ -655,6 +656,7 @@ static const struct intel_device_info 
intel_skylake_gt4_info = {
        .display.has_ddi = 1, \
        .has_fpga_dbg = 1, \
        .display.has_fbc = 1, \
+       .display.has_hdcp = 1, \
        .display.has_psr = 1, \
        .has_runtime_pm = 1, \
        .display.has_csr = 1, \
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 6e3ae6e9cbb8..eacc5ba307b0 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7653,6 +7653,7 @@ enum {
 
 #define SKL_DFSM                               _MMIO(0x51000)
 #define SKL_DFSM_INTERNAL_DISPLAY_DISABLE      (1 << 30)
+#define SKL_DFSM_DISPLAY_HDCP_DISABLE          (1 << 25)
 #define SKL_DFSM_CDCLK_LIMIT_MASK              (3 << 23)
 #define SKL_DFSM_CDCLK_LIMIT_675               (0 << 23)
 #define SKL_DFSM_CDCLK_LIMIT_540               (1 << 23)
diff --git a/drivers/gpu/drm/i915/intel_device_info.c 
b/drivers/gpu/drm/i915/intel_device_info.c
index 8d6492afdd6a..753c2cf2fbf4 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -987,6 +987,9 @@ void intel_device_info_runtime_init(struct drm_i915_private 
*dev_priv)
 
                if (!enabled_mask)
                        i915_modparams.disable_display = true;
+
+               if (dfsm & SKL_DFSM_DISPLAY_HDCP_DISABLE)
+                       info->display.has_hdcp = 0;
        }
 
        /* Initialize slice/subslice/EU info */
diff --git a/drivers/gpu/drm/i915/intel_device_info.h 
b/drivers/gpu/drm/i915/intel_device_info.h
index e9940f932d26..118d922261e2 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -138,6 +138,7 @@ enum intel_ppgtt_type {
        func(has_dsb); \
        func(has_fbc); \
        func(has_gmch); \
+       func(has_hdcp); \
        func(has_hotplug); \
        func(has_ipc); \
        func(has_modular_fia); \
-- 
2.23.0

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