[PATCH 1/4] drm/i915/dp: Account for channel coding efficiency on UHBR links
Imre Deak
imre.deak at intel.com
Thu Nov 9 18:54:20 UTC 2023
Signed-off-by: Imre Deak <imre.deak at intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 3effafcbb411a..24aebdb715e7d 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2398,16 +2398,6 @@ add_bw_alloc_overhead(int link_clock, int bw_overhead,
int ch_coding_efficiency =
drm_dp_bw_channel_coding_efficiency(is_uhbr);
- /*
- * TODO: adjust for actual UHBR channel coding efficiency and BW
- * overhead.
- */
- if (is_uhbr) {
- *data_m = pixel_data_rate;
- *data_n = link_data_rate * 8 / 10;
- return;
- }
-
*data_m = DIV_ROUND_UP_ULL(mul_u32_u32(pixel_data_rate, bw_overhead),
1000000);
*data_n = DIV_ROUND_DOWN_ULL(mul_u32_u32(link_data_rate, ch_coding_efficiency),
--
2.39.2
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