diff options
| author | David Francis <David.Francis@amd.com> | 2019-06-19 14:46:15 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-09 18:07:46 -0500 |
| commit | 2f221a5efed4cb369dc53cbbae3ba03fcf2ede49 (patch) | |
| tree | 6508e47162ede9f1c501479c40ad620a48923f2e /drivers/gpu/drm/drm_dp_aux_dev.c | |
| parent | a3c2b0ffc007e5d98f5313ed951fff092535fb6d (diff) | |
drm/dp_mst: Add MST support to DP DPCD R/W functions
Instead of having drm_dp_dpcd_read/write and
drm_dp_mst_dpcd_read/write as entry points into the
aux code, have drm_dp_dpcd_read/write handle both.
This means that DRM drivers can make MST DPCD read/writes.
v2: Fix spacing
v3: Dump dpcd access on MST read/writes
v4: Fix calling wrong function on DPCD write
v5: delete deprecated include of drmP.h
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/drm_dp_aux_dev.c')
| -rw-r--r-- | drivers/gpu/drm/drm_dp_aux_dev.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c index 0cfb386754c3..2510717d5a08 100644 --- a/drivers/gpu/drm/drm_dp_aux_dev.c +++ b/drivers/gpu/drm/drm_dp_aux_dev.c @@ -163,11 +163,7 @@ static ssize_t auxdev_read_iter(struct kiocb *iocb, struct iov_iter *to) break; } - if (aux_dev->aux->is_remote) - res = drm_dp_mst_dpcd_read(aux_dev->aux, pos, buf, - todo); - else - res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo); + res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo); if (res <= 0) break; @@ -215,11 +211,7 @@ static ssize_t auxdev_write_iter(struct kiocb *iocb, struct iov_iter *from) break; } - if (aux_dev->aux->is_remote) - res = drm_dp_mst_dpcd_write(aux_dev->aux, pos, buf, - todo); - else - res = drm_dp_dpcd_write(aux_dev->aux, pos, buf, todo); + res = drm_dp_dpcd_write(aux_dev->aux, pos, buf, todo); if (res <= 0) break; |