Revert "drm/i915: Drop has_dp_mst from device info"

This reverts commit eb86f645.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220519090802.1294691-3-tvrtko.ursulin@linux.intel.com

drivers/gpu/drm/i915/i915_drv.h

@@ -1289,13 +1289,13 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 
 #define HAS_IPS(dev_priv)	(IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))
 
+#define HAS_DP_MST(dev_priv)	(INTEL_INFO(dev_priv)->display.has_dp_mst)
 #define HAS_DP20(dev_priv)	(IS_DG2(dev_priv))
 
 #define HAS_CDCLK_CRAWL(dev_priv)	 (INTEL_INFO(dev_priv)->display.has_cdclk_crawl)
 #define HAS_DDI(dev_priv)		 (DISPLAY_VER(dev_priv) >= 9 || \
 					  IS_BROADWELL(dev_priv) || \
 					  IS_HASWELL(dev_priv))
-#define HAS_DP_MST(dev_priv)		 (HAS_DDI(dev_priv))
 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
 #define HAS_PSR(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_psr)
 #define HAS_PSR_HW_TRACKING(dev_priv) \

drivers/gpu/drm/i915/i915_pci.c

@@ -536,6 +536,7 @@ static const struct intel_device_info vlv_info = {
 	.display.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
 		BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP), \
 	.display.has_fpga_dbg = 1, \
+	.display.has_dp_mst = 1, \
 	.has_rc6p = 0 /* RC6p removed-by HSW */, \
 	HSW_PIPE_OFFSETS, \
 	.has_runtime_pm = 1
@@ -689,6 +690,7 @@ static const struct intel_device_info skl_gt4_info = {
 	.has_runtime_pm = 1, \
 	.display.has_dmc = 1, \
 	.has_rps = true, \
+	.display.has_dp_mst = 1, \
 	.has_logical_ring_contexts = 1, \
 	.dma_mask_size = 39, \
 	.ppgtt_type = INTEL_PPGTT_FULL, \
@@ -929,6 +931,7 @@ static const struct intel_device_info adl_s_info = {
 	.dbuf.slice_mask = BIT(DBUF_S1) | BIT(DBUF_S2) | BIT(DBUF_S3) |		\
 		BIT(DBUF_S4),							\
 	.display.has_dmc = 1,							\
+	.display.has_dp_mst = 1,						\
 	.display.has_dsb = 1,							\
 	.display.has_dsc = 1,							\
 	.display.fbc_mask = BIT(INTEL_FBC_A),					\

drivers/gpu/drm/i915/intel_device_info.h

@@ -163,6 +163,7 @@ enum intel_ppgtt_type {
 	func(cursor_needs_physical); \
 	func(has_cdclk_crawl); \
 	func(has_dmc); \
+	func(has_dp_mst); \
 	func(has_dsb); \
 	func(has_dsc); \
 	func(has_fpga_dbg); \