| Message ID | 20190821133221.29456-10-maarten.lankhorst@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915: Bigjoiner preparations. | expand |
On Wed, 21 Aug 2019, Maarten Lankhorst <maarten.lankhorst@linux.intel.com> wrote: > Dump the DSC and FEC in i915_dpcd as well. This is useful when > debugging the link caps. I thought we were going to get rid of this particular debugfs file altogether ages ago. You can dump the DPCD using CONFIG_DRM_DP_AUX_CHARDEV=y and dd on /dev/drm_dp_auxN. BR, Jani. > > 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 },
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 },
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(+)