From: Kory Maincent <kory.maincent@bootlin.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>,
Simona Vetter <simona@ffwll.ch>,
Jani Nikula <jani.nikula@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Tvrtko Ursulin <tursulin@ursulin.net>,
Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Luca Ceresoli <luca.ceresoli@bootlin.com>,
Chun-Kuang Hu <chunkuang.hu@kernel.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Dmitry Baryshkov <lumag@kernel.org>,
Daniel Stone <daniels@collabora.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Mark Yacoub <markyacoub@google.com>,
Sean Paul <seanpaul@google.com>,
Manasi Navare <navaremanasi@google.com>,
Drew Davenport <ddavenport@google.com>,
Louis Chauvet <louis.chauvet@bootlin.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
Kory Maincent <kory.maincent@bootlin.com>
Subject: [PATCH RFC v3 4/8] drm/i915/display/dp: Read DPCD DSC capabilities in any case
Date: Mon, 12 Oct 2026 17:10:59 +0200 [thread overview]
Message-ID: <20261012-feat_link_cap-v3-4-7517f4aba0f3@bootlin.com> (raw)
In-Reply-To: <20261012-feat_link_cap-v3-0-7517f4aba0f3@bootlin.com>
In preparation for the support of reporting the sink capabilities we
need to read the DSC sink capabilities even if the source does not
support it.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
Change in v3:
- New patch
---
drivers/gpu/drm/i915/display/intel_dp.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 830fe6eda17d7..b769723a1c0fd 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4521,12 +4521,7 @@ static void intel_edp_get_dsc_sink_cap(u8 edp_dpcd_rev, struct intel_connector *
static void
intel_dp_detect_dsc_caps(struct intel_dp *intel_dp, struct intel_connector *connector)
{
- struct intel_display *display = to_intel_display(intel_dp);
-
/* Read DP Sink DSC Cap DPCD regs for DP v1.4 */
- if (!HAS_DSC(display))
- return;
-
if (intel_dp_is_edp(intel_dp))
intel_edp_get_dsc_sink_cap(intel_dp->edp_dpcd[0],
connector);
--
2.43.0
next prev parent reply other threads:[~2026-10-12 15:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-12 15:10 [PATCH RFC v3 0/8] Add support for DisplayPort link training information report Kory Maincent
2026-10-12 15:10 ` [PATCH RFC v3 1/8] drm: Move sink link rates reading helpers out of i915 Kory Maincent
2026-10-12 15:10 ` [PATCH RFC v3 2/8] drm: Move DSC capability reading helper " Kory Maincent
2026-10-12 15:10 ` [PATCH RFC v3 3/8] drm: Introduce DisplayPort link training capabilities and state helpers Kory Maincent
2026-10-12 15:10 ` Kory Maincent [this message]
2026-10-12 15:11 ` [PATCH RFC v3 5/8] drm/i915/display/dp: Use dp_connector helpers to expose link training state Kory Maincent
2026-10-12 15:11 ` [PATCH RFC v3 6/8] drm/bridge: Expose link training state via new DRM_BRIDGE_OP_DP flag Kory Maincent
2026-10-12 15:11 ` [PATCH RFC v3 7/8] drm/analogix/anx7625: Use dp_connector helpers to expose link training state Kory Maincent
2026-10-12 15:11 ` [PATCH RFC v3 8/8] drm/mediatek: " Kory Maincent
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