[PATCH 1/2] drm/i915/display: Add macro for checking 3 DSC engines

[Ankit Nautiyal]

3 DSC engines per pipe is currently supported only for BMG.
Add a macro to check whether a platform supports 3 DSC engines per pipe.

v2:Fix Typo in macro argument. (Suraj).
Added fixes tag.

Bspec: 50175
Fixes: be7f5fcdf4a0 ("drm/i915/dp: Enable 3 DSC engines for 12 slices")
Cc: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
Cc: Suraj Kandpal <suraj.kandpal at intel.com>
Cc: <stable at vger.kernel.org> # v6.14+
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_device.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h
index 368b0d3417c2..87c666792c0d 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.h
+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
@@ -163,6 +163,7 @@ struct intel_display_platforms {
 #define HAS_DP_MST(__display)		(DISPLAY_INFO(__display)->has_dp_mst)
 #define HAS_DSB(__display)		(DISPLAY_INFO(__display)->has_dsb)
 #define HAS_DSC(__display)		(DISPLAY_RUNTIME_INFO(__display)->has_dsc)
+#define HAS_DSC_3ENGINES(__display)	(DISPLAY_VERx100(__display) == 1401 && HAS_DSC(__display))
 #define HAS_DSC_MST(__display)		(DISPLAY_VER(__display) >= 12 && HAS_DSC(__display))
 #define HAS_FBC(__display)		(DISPLAY_RUNTIME_INFO(__display)->fbc_mask != 0)
 #define HAS_FBC_DIRTY_RECT(__display)	(DISPLAY_VER(__display) >= 30)
-- 
2.34.1