Add compressed bpp limitations for ultrajoiner.
v2: Fix the case for 1 pipe. (Ankit)
v3: Refactor existing helper separately and add only ultrajoiner
limitation. (Ville)
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index e7fe100ef8db..3d4d8e58380a 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -896,6 +896,11 @@ static u32 small_joiner_ram_max_bpp(struct intel_display *display, u32 mode_hdis
return max_bpp;
}
+static u32 ultrajoiner_ram_max_bpp(struct intel_display *display, u32 mode_hdisplay)
+{
+ return (4 * 72 * 512) / mode_hdisplay;
+}
+
static
u32 get_max_compressed_bpp_with_joiner(struct drm_i915_private *i915,
u32 mode_clock, u32 mode_hdisplay,
@@ -907,6 +912,9 @@ u32 get_max_compressed_bpp_with_joiner(struct drm_i915_private *i915,
max_bpp = small_joiner_ram_max_bpp(display, mode_hdisplay, num_joined_pipes);
max_bpp = min(max_bpp, bigjoiner_bw_max_bpp(display, mode_clock, num_joined_pipes));
+ if (num_joined_pipes == 4)
+ max_bpp = min(max_bpp, ultrajoiner_ram_max_bpp(display, mode_hdisplay));
+
return max_bpp;
}
--
2.45.2
