[PATCH 09/10] drm/i915: Add debugfs entries for reading out DPCD DSC and FEC.

Maarten Lankhorst
2019-08-21T13:32:26Z

Dump the DSC and FEC in i915_dpcd as well. This is useful when
debugging the link caps.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 610bc9b5d740..c2f15de07427 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -4396,8 +4396,10 @@ struct dpcd_block {

static const struct dpcd_block i915_dpcd_debug[] = {
{ .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE },
+ { .offset = DP_DSC_SUPPORT, .end = DP_DSC_BITS_PER_PIXEL_INC },
{ .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS },
{ .offset = DP_DOWNSTREAM_PORT_0, .size = 16 },
+ { .offset = DP_FEC_CAPABILITY },
{ .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET },
{ .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 },
{ .offset = DP_SET_POWER },