[Intel-gfx] [RFC 1/8] drm/i915: Make number of ddi ports explicit.

[Rodrigo Vivi]

Instead of a simple bool that shows if we have ddi ports
or not, let's highlight the number of ddi ports.

So we can use this information to determine the code
path instead of using platforms codenames.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h          | 2 +-
 drivers/gpu/drm/i915/i915_pci.c          | 5 +++--
 drivers/gpu/drm/i915/intel_device_info.h | 2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3017ef037fed..7ad232849268 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2647,7 +2647,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 
 #define HAS_DP_MST(dev_priv)	((dev_priv)->info.has_dp_mst)
 
-#define HAS_DDI(dev_priv)		 ((dev_priv)->info.has_ddi)
+#define HAS_DDI(dev_priv)		 ((dev_priv)->info.ddi_ports > 0)
 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) ((dev_priv)->info.has_fpga_dbg)
 #define HAS_PSR(dev_priv)		 ((dev_priv)->info.has_psr)
 
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 0a05cc7ace14..0427486f63d0 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -363,7 +363,7 @@ static const struct intel_device_info intel_valleyview_info = {
 #define G75_FEATURES  \
 	GEN7_FEATURES, \
 	.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, \
-	.has_ddi = 1, \
+	.ddi_ports = 5, \
 	.has_fpga_dbg = 1, \
 	.has_psr = 1, \
 	.has_dp_mst = 1, \
@@ -505,7 +505,7 @@ static const struct intel_device_info intel_skylake_gt4_info = {
 	.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, \
 	.num_pipes = 3, \
 	.has_64bit_reloc = 1, \
-	.has_ddi = 1, \
+	.ddi_ports = 3, \
 	.has_fpga_dbg = 1, \
 	.has_fbc = 1, \
 	.has_psr = 1, \
@@ -596,6 +596,7 @@ static const struct intel_device_info intel_cannonlake_info = {
 #define GEN11_FEATURES \
 	GEN10_FEATURES, \
 	GEN(11), \
+	.ddi_ports = 6, \
 	.ddb_size = 2048, \
 	.has_logical_ring_elsq = 1
 
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index af7002640cdf..1be941222ed0 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -90,7 +90,6 @@ enum intel_ppgtt {
 	/* Keep has_* in alphabetical order */ \
 	func(has_64bit_reloc); \
 	func(has_csr); \
-	func(has_ddi); \
 	func(has_dp_mst); \
 	func(has_reset_engine); \
 	func(has_fbc); \
@@ -165,6 +164,7 @@ struct intel_device_info {
 
 	u32 display_mmio_offset;
 
+	u8 ddi_ports;
 	u8 num_pipes;
 	u8 num_sprites[I915_MAX_PIPES];
 	u8 num_scalers[I915_MAX_PIPES];
-- 
2.19.1