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...s all wrong. > > Signed-off-by: Hans Verkuil <hans.verkuil at cisco.com> > --- > drivers/gpu/drm/drm_dp_mst_topology.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c > b/drivers/gpu/drm/drm_dp_mst_topology.c > index 7780567aa669..5ff1d79b86c4 100644 > --- a/drivers/gpu/drm/drm_dp_mst_topology.c > +++ b/drivers/gpu/drm/drm_dp_mst_topology.c > @@ -439,6 +439,7 @@ static bool drm_dp_sideband_parse_remote_dpcd_read(struct > drm_dp_sideband_msg_rx > if (idx > raw->curlen) > goto fail_len; > rep...

From: Hans Verkuil <hans.verkuil at cisco.com> Now that the DisplayPort CEC-Tunneling-over-AUX drm+i915 support has been merged in the mainline kernel it is time to roll this out to nouveau and amdgpu as well. The first patch is required for this: it adds checks that the drm_dp_cec functions are called with a working aux implementation. These checks weren't necessary for the i915, but

...tly not used, but if you enable it, then it is all wrong. Signed-off-by: Hans Verkuil <hans.verkuil at cisco.com> --- drivers/gpu/drm/drm_dp_mst_topology.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 7780567aa669..5ff1d79b86c4 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -439,6 +439,7 @@ static bool drm_dp_sideband_parse_remote_dpcd_read(struct drm_dp_sideband_msg_rx if (idx > raw->curlen) goto fail_len; repmsg->u.remote_dpcd_read_ack.num_...

...ned-off-by: Hans Verkuil <hans.verkuil at cisco.com> >> --- >> drivers/gpu/drm/drm_dp_mst_topology.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c >> b/drivers/gpu/drm/drm_dp_mst_topology.c >> index 7780567aa669..5ff1d79b86c4 100644 >> --- a/drivers/gpu/drm/drm_dp_mst_topology.c >> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c >> @@ -439,6 +439,7 @@ static bool drm_dp_sideband_parse_remote_dpcd_read(struct >> drm_dp_sideband_msg_rx >> if (idx > raw->curlen) >> g...

...tly not used, but if you enable it, then it is all wrong. Signed-off-by: Hans Verkuil <hans.verkuil at cisco.com> --- drivers/gpu/drm/drm_dp_mst_topology.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 7780567aa669..5ff1d79b86c4 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -439,6 +439,7 @@ static bool drm_dp_sideband_parse_remote_dpcd_read(struct drm_dp_sideband_msg_rx if (idx > raw->curlen) goto fail_len; repmsg->u.remote_dpcd_read_ack.num_...

...t lip6.fr> Cc: stable at vger.kernel.org --- drivers/gpu/drm/drm_dp_mst_topology.c | 76 +++++++++++++++++++++++++++ include/drm/drm_dp_mst_helper.h | 3 ++ 2 files changed, 79 insertions(+) diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 7780567aa669..58b9554711c7 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3129,6 +3129,82 @@ static const struct drm_private_state_funcs mst_state_funcs = { .atomic_destroy_state = drm_dp_mst_destroy_state, }; +static bool +drm_dp_mst_connector_still_exis...

...edhat.com> Cc: stable at vger.kernel.org --- drivers/gpu/drm/drm_dp_mst_topology.c | 76 +++++++++++++++++++++++++++ include/drm/drm_dp_mst_helper.h | 3 ++ 2 files changed, 79 insertions(+) diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 7780567aa669..0162d4bf2549 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3129,6 +3129,82 @@ static const struct drm_private_state_funcs mst_state_funcs = { .atomic_destroy_state = drm_dp_mst_destroy_state, }; +static bool +drm_dp_mst_connector_still_exis...

...+503,6 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, &aconnector->dm_dp_aux.aux, 16, 4, - aconnector->connector_id); + &aconnector->base); } diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 7780567aa669..edba17073c7a 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3166,9 +3166,11 @@ EXPORT_SYMBOL(drm_atomic_get_mst_topology_state); * Return 0 for success, or negative error code on failure */ int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_...

...+503,6 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, &aconnector->dm_dp_aux.aux, 16, 4, - aconnector->connector_id); + &aconnector->base); } diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 7780567aa669..acb7633f3f70 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3161,14 +3161,16 @@ EXPORT_SYMBOL(drm_atomic_get_mst_topology_state); * @aux: DP helper aux channel to talk to this device * @max_dpcd_transaction_bytes: hw specific DPCD transaction...

From: Hans Verkuil <hans.verkuil at cisco.com> Repost because I wasn't a member of the nouveau mailinglist the first time around and this series was blocked. I also updated this cover letter for the part about the amdgpu patch after receiving feedback from Alex Deucher. The patches are unchanged (except for adding Alex' Acked-by to the amdgpu patch). Now that the DisplayPort

From: Hans Verkuil <hans.verkuil at cisco.com> Now that the DisplayPort CEC-Tunneling-over-AUX drm+i915 support has been merged in the mainline kernel it is time to roll this out to nouveau and amdgpu as well. I combined both in the same patch series since both depend on the same first patch, the comments in this cover letter apply to both and the implementation is also very similar (and

This is the next version of my patch series for teaching DRM how to automatically create debugfs nodes for drivers with MST topologies. This was originally intended just for nouveau, but has since been expanded to all DRM drivers. Changes since previous version: - Fix documentation error that got noticed by the kbuild bot in "drm/dp_mst: Pass entire connector to

This is the next version of my patch series for teaching DRM how to automatically create debugfs nodes for drivers with MST topologies. This was originally intended just for nouveau, but has since been expanded to all DRM drivers. Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com> Cc: Daniel Stone <daniel at fooishbar.org> Lyude Paul (4): drm/debugfs: Add support for