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From: Imre Deak <imre.deak@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Subject: [PATCH v2 6/6] drm/i915/dp: Dump the LTTPR PHY descriptors
Date: Mon,  8 Jul 2024 22:00:29 +0300	[thread overview]
Message-ID: <20240708190029.271247-7-imre.deak@intel.com> (raw)
In-Reply-To: <20240708190029.271247-1-imre.deak@intel.com>

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.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> # v1
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp_link_training.c | 5 ++++-
 1 file changed, 4 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 af0b71bdf1fcf..ab72aa1d664dc 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -20,6 +20,7 @@
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  * IN THE SOFTWARE.
  */
+#include <drm/display/drm_dp_helper.h>
 
 #include "i915_drv.h"
 #include "intel_display_types.h"
@@ -206,8 +207,10 @@ 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;
 }
-- 
2.43.3


  parent reply	other threads:[~2024-07-08 19:00 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-08 19:00 [PATCH v2 0/6] drm/i915/dp: Fix LTTPR detection Imre Deak
2024-07-08 19:00 ` [PATCH v2 1/6] drm/i915/dp: Reset intel_dp->link_trained before retraining the link Imre Deak
2024-07-11  9:38   ` Nautiyal, Ankit K
2024-07-08 19:00 ` [PATCH v2 2/6] drm/i915/dp: Don't switch the LTTPR mode on an active link Imre Deak
2024-07-11  9:40   ` Nautiyal, Ankit K
2024-07-08 19:00 ` [PATCH v2 3/6] drm/i915/dp: Reset cached LTTPR count if number of LTTPRs is unsupported Imre Deak
2024-07-11  9:41   ` Nautiyal, Ankit K
2024-07-08 19:00 ` [PATCH v2 4/6] drm/i915/dp: Keep cached LTTPR mode up-to-date Imre Deak
2024-07-11  9:42   ` Nautiyal, Ankit K
2024-07-08 19:00 ` [PATCH v2 5/6] drm/dp: Add helper to dump an LTTPR PHY descriptor Imre Deak
2024-07-11  9:43   ` Nautiyal, Ankit K
2024-07-08 19:00 ` Imre Deak [this message]
2024-07-11  9:50   ` [PATCH v2 6/6] drm/i915/dp: Dump the LTTPR PHY descriptors Nautiyal, Ankit K
2024-07-11 10:53     ` Imre Deak
2024-07-08 19:50 ` ✗ Fi.CI.CHECKPATCH: warning for drm/i915/dp: Fix LTTPR detection (rev2) Patchwork
2024-07-08 19:50 ` ✗ Fi.CI.SPARSE: " Patchwork
2024-07-08 19:59 ` ✓ Fi.CI.BAT: success " Patchwork
2024-07-09 11:12 ` ✓ Fi.CI.IGT: " Patchwork
2024-07-11 18:49   ` Imre Deak

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