Dump the descriptor of the detected LTTPRs in non-transparent mode to
help the debugging related to LTTPRs easier.
v2: Use drm_dp_dump_lttpr_desc() instead of the driver specific
equivalent.
v3: Add empty line between license and header section. (Ankit)
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> # v1
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
---
Resending [1] now, after the corresponding DRM core helper is merged to
drm-intel-next.
[1] https://lore.kernel.org/all/20240708190029.271247-7-imre.deak@xxxxxxxxx
drivers/gpu/drm/i915/display/intel_dp_link_training.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index f45797c1a2051..b7bd8135c1138 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -21,6 +21,8 @@
* IN THE SOFTWARE.
*/
+#include <drm/display/drm_dp_helper.h>
+
#include <linux/debugfs.h>
#include <drm/display/drm_dp_helper.h>
@@ -210,8 +212,10 @@ static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEI
lttpr_count = intel_dp_init_lttpr_phys(intel_dp, dpcd);
- for (i = 0; i < lttpr_count; i++)
+ for (i = 0; i < lttpr_count; i++) {
intel_dp_read_lttpr_phy_caps(intel_dp, dpcd, DP_PHY_LTTPR(i));
+ drm_dp_dump_lttpr_desc(&intel_dp->aux, DP_PHY_LTTPR(i));
+ }
return lttpr_count;
}
--
2.44.2
