LTTPRs operating modes are defined by the DisplayPort standard and the
generic framework now provides a helper to switch between them, which
is handling the explicit disabling of non-transparent mode and its
disable->enable sequence mentioned in the DP Standard v2.0 section
3.6.6.1.
So use the new drm generic helper instead as it makes the code a bit
cleaner.
Reviewed-by: Lyude Paul <ly...@redhat.com>
Signed-off-by: Abel Vesa <abel.v...@linaro.org>
---
drivers/gpu/drm/nouveau/nouveau_dp.c | 17 ++---------------
1 file changed, 2 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c
b/drivers/gpu/drm/nouveau/nouveau_dp.c
index
bcda0105160f1450df855281e0d932606a5095dd..55691ec44abaa53c84e73358e33df1949bb1e35c
100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -79,21 +79,8 @@ nouveau_dp_probe_dpcd(struct nouveau_connector *nv_connector,
!drm_dp_read_lttpr_common_caps(aux, dpcd, outp->dp.lttpr.caps)) {
int nr = drm_dp_lttpr_count(outp->dp.lttpr.caps);
- if (nr) {
- drm_dp_dpcd_writeb(aux, DP_PHY_REPEATER_MODE,
-
DP_PHY_REPEATER_MODE_TRANSPARENT);
-
- if (nr > 0) {
- ret = drm_dp_dpcd_writeb(aux,
DP_PHY_REPEATER_MODE,
-
DP_PHY_REPEATER_MODE_NON_TRANSPARENT);
- if (ret != 1) {
- drm_dp_dpcd_writeb(aux,
DP_PHY_REPEATER_MODE,
-
DP_PHY_REPEATER_MODE_TRANSPARENT);
- } else {
- outp->dp.lttpr.nr = nr;
- }
- }
- }
+ if (!drm_dp_lttpr_init(aux, nr))
+ outp->dp.lttpr.nr = nr;
}
ret = drm_dp_read_dpcd_caps(aux, dpcd);
--
2.34.1
