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| author |   Abel Vesa <abel.vesa@linaro.org> | 2025-02-03 12:57:57 +0200 |
|---|---|---|
| committer |   Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2025-02-25 18:33:48 +0200 |
| commit | 226a0baf9098841ceb92ab7804a07426540663c7 (patch) | |
| tree | 170fcc10052afb4560ed851755a6605a04379c02 | |
| parent | drm/dp: Add helper to set LTTPRs in transparent mode (diff) | |
| download | wireguard-linux-226a0baf9098841ceb92ab7804a07426540663c7.tar.xz wireguard-linux-226a0baf9098841ceb92ab7804a07426540663c7.zip | |
drm/nouveau/dp: Use the generic helper to control LTTPR transparent mode
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 <lyude@redhat.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Danilo Krummrich <dakr@kernel.org> # via IRC
Link: https://patchwork.freedesktop.org/patch/msgid/20250203-drm-dp-msm-add-lttpr-transparent-mode-set-v5-2-c865d0e56d6e@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_dp.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index bcda0105160f..55691ec44aba 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); |