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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241211-drm-dp-msm-add-lttpr-transparent-mode-set-v2-2-d5906ed38b28@linaro.org> References: <20241211-drm-dp-msm-add-lttpr-transparent-mode-set-v2-0-d5906ed38b28@linaro.org> In-Reply-To: <20241211-drm-dp-msm-add-lttpr-transparent-mode-set-v2-0-d5906ed38b28@linaro.org> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Karol Herbst , Lyude Paul , Danilo Krummrich , Jani Nikula , Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten Cc: Bjorn Andersson , Konrad Dybcio , Johan Hovold , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Abel Vesa X-Mailer: b4 0.15-dev-dedf8 X-Developer-Signature: v=1; a=openpgp-sha256; l=1590; i=abel.vesa@linaro.org; h=from:subject:message-id; bh=+kjpSyZKMfYDv7GSGvBVLk0oNBwdg69xxssowfQbXBQ=; b=owEBbQKS/ZANAwAKARtfRMkAlRVWAcsmYgBnWY3WaTT+6VyZh/3rm82/2TydUPnkTOBrLlbTe +haYEToEU6JAjMEAAEKAB0WIQRO8+4RTnqPKsqn0bgbX0TJAJUVVgUCZ1mN1gAKCRAbX0TJAJUV Vv+EEAC/mhtx4BAo7l+Gpv7VfDJluKQ2IVW2JLA7gcOtRG3KrQ2/7TWoudUHdxCdj7ntdS+AnsM clIT7XQej+oMg6vOX1ZCXxtpgnAEUw6dZpkmhzOYWol6pF2ijiTaabFDaE4hxbjS09E5UrRZM7L E9wBLGyv24EGZgibP130Ecc9BM9ssTSQedas/qKUgRrrggCoyv2M4Jp6NRpSNuun+whR+CXSMT9 kxLmdTXL2xT7zAKn2sZcwW/AmK4HYFCFvctGDBadMaiVeHuxGmZJ5iZ2hM1n7bJVw6YXz8p0f/C KxyW7r1DTixUkJgcrtKAkeiM+DmuWpfenRgJjbc7FlA6jh01UD/kbm1l3sYNjpmQpIML0BDirLI uZ5gbyQ8/zrV3uJpS9ZT5p1SontVtUSOh+PZhGnB3y8cYILLJbxLw1BiljIx9OtFy1d7gSUsJtd 6MCwPHrB6gUSO608/zFBFJQTuBU4S/xPoKqtEJ1WORQ3QEsF5K5LGTbLeZWedVe24NDrFrKlqbl yI5lqEJ/KYUB/ecDm7+9AnH/8At1uJUrzKPhY+MCdOyZNR4zr56pMxHGPqyZWgvQPFvC3UibWrI PpQg/dk4ZYkrxuDOet/C0VL4bGZMh1CxyUhO5OyuCK8MP16O/ETSv+MgSpzUrkRtUS87sATbAz3 05z8rijWelGI5Ng== X-Developer-Key: i=abel.vesa@linaro.org; a=openpgp; fpr=6AFF162D57F4223A8770EF5AF7BF214136F41FAE 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. Signed-off-by: Abel Vesa Reviewed-by: Lyude Paul --- 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..55691ec44abaa53c84e73358e33= df1949bb1e35c 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_conne= ctor, !drm_dp_read_lttpr_common_caps(aux, dpcd, outp->dp.lttpr.caps)) { int nr =3D drm_dp_lttpr_count(outp->dp.lttpr.caps); =20 - if (nr) { - drm_dp_dpcd_writeb(aux, DP_PHY_REPEATER_MODE, - DP_PHY_REPEATER_MODE_TRANSPARENT); - - if (nr > 0) { - ret =3D drm_dp_dpcd_writeb(aux, DP_PHY_REPEATER_MODE, - DP_PHY_REPEATER_MODE_NON_TRANSPARENT); - if (ret !=3D 1) { - drm_dp_dpcd_writeb(aux, DP_PHY_REPEATER_MODE, - DP_PHY_REPEATER_MODE_TRANSPARENT); - } else { - outp->dp.lttpr.nr =3D nr; - } - } - } + if (!drm_dp_lttpr_init(aux, nr)) + outp->dp.lttpr.nr =3D nr; } =20 ret =3D drm_dp_read_dpcd_caps(aux, dpcd); --=20 2.34.1