[PATCH 38/41] drm/amd/display: switch max FFE level cap based on FRL link rate

From: Relja Vojvodic <[email protected]>

[How & Why]
- Add support for dynamic FFE levels based on debug config and link rate

Reviewed-by: Nicholas Kazlauskas <[email protected]>
Signed-off-by: Relja Vojvodic <[email protected]>
Signed-off-by: Roman Li <[email protected]>
---
 .../gpu/drm/amd/display/dc/dio/dcn60/dcn60_dio_link_encoder.c  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dio/dcn60/dcn60_dio_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dio/dcn60/dcn60_dio_link_encoder.c
index 86ac881879cf..6fe15324ea50 100644
--- a/drivers/gpu/drm/amd/display/dc/dio/dcn60/dcn60_dio_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dio/dcn60/dcn60_dio_link_encoder.c
@@ -139,7 +139,8 @@ void dpcs60_program_eq_setting(
 		bool no_ffe,
 		const struct dc_hdmi_frl_link_settings *link_settings)
 {
-	const uint8_t max_ffe_level = 0x7;
+	const uint8_t max_ffe_level =
+			(link_settings->frl_link_rate > HDMI_FRL_LINK_RATE_12GBPS) ? 0x7 : 0x3;
 	struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 	struct bp_transmitter_control cntl = { 0 };
 
-- 
2.34.1