[PATCH 07/18] drm/amd/display: Modify checks to enable TPS3 pattern when required

[Alex Hung]

From: Iswara Nagulendran <iswara.nagulendran at amd.com>

[HOW&WHY]
Checking if both DSC and FEC supported from sink and
source before going with TPS3 pattern during link
training.

Reviewed-by: Anthony Koo <Anthony.Koo at amd.com>
Acked-by: Alex Hung <alex.hung at amd.com>
Signed-off-by: Iswara Nagulendran <iswara.nagulendran at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
index bec5e9f787fc..cda1592c3a5b 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
@@ -399,7 +399,11 @@ static bool dmub_psr_copy_settings(struct dmub_psr *dmub,
 		link->psr_settings.force_ffu_mode = 0;
 	copy_settings_data->force_ffu_mode = link->psr_settings.force_ffu_mode;
 
-	if (link->fec_state == dc_link_fec_enabled &&
+	if (((link->dpcd_caps.fec_cap.bits.FEC_CAPABLE &&
+		!link->dc->debug.disable_fec) &&
+		(link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_SUPPORT &&
+		!link->panel_config.dsc.disable_dsc_edp &&
+		link->dc->caps.edp_dsc_support)) &&
 		link->dpcd_caps.sink_dev_id == DP_DEVICE_ID_38EC11 &&
 		(!memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_1,
 			sizeof(DP_SINK_DEVICE_STR_ID_1)) ||
-- 
2.38.1