From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=185.246.84.56 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792687149; b=DdYzE770aYD3dAJGumt4dzPs+lpWX9ItUW8QMvrqUliUBwR1cI5vWyGQw3wdmfDs/cEt yXb5IATvLaDSWGmJopTY0Z6oHcN4y7Ot7XztgSZ69aLY/cdZvEmKjLTHjRMm8UudVGbNg RmK3CLNjzDjYlrq25Arc5JRphnLw9fNBjwMXWrJVzbBTtVn5SxTbXNDiF0O+zJuuXWBTH dLb2ruhKcyFJ8XFyXmp3DAufDpgum3OHQ1CckoRnbX6x1sOp3gDLBpwCpkOVCjD04PN58 MZnyc2bFa+zXhOWHNvvDJ/wbA75qRNeST8PywVq2/2+AlGOy4O7B195QAEcX6qm6/eg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792687149; h=DMARC-Filter:Received:Received:Received:DKIM-Signature:From:Date: Subject:MIME-Version:Content-Type:Content-Transfer-Encoding: Message-Id:References:In-Reply-To:To:Cc:X-Mailer: X-Last-TLS-Session-Version; bh=txjk6h2eBJ7yoCPY4RxTRfMgnDBsm+i10abL0Ow5+a4=; b=gRhzOCHik75IEx96qHZqPGDbBmn57df6OebRSX4M4z43ecYDLIDCpmSgg/vBcTetzGie C+hcssDq/xp+JGLlsjTX4gzAmEMHSSF69J4Q92AgeFcdKHnyfh9VILDn4qUqCHdBCQZo1 rexbkii3An/pQErpzbYigu59XTp9vt6MulY3CQbygDfMUVwZfe8dYqu2Plr6VQkSpn0IM yELxPqgrdP5A0Eubr9ss3flBYI8+JMVKfFDsiajbnky4hVDgGSMC1nQHonnrRzyEVmxxa L9tkpUZ6s6gjmQQ8Nr197xGlBo4WM5GpPbICquGtWbt6uLBxEONXp69epKDMeEy0BwQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256 header.s=dkim header.b=PuvjdE57; arc=none smtp.remote-ip=185.246.84.56 Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8B6B6606A31B for ; Thu, 22 Oct 2026 16:39:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 8B6B6606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256 header.s=dkim header.b=PuvjdE57 Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 324211A12C9; Thu, 22 Oct 2026 16:39:07 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id F193A60763; Thu, 22 Oct 2026 16:39:06 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 9869610328F2E; Thu, 22 Oct 2026 18:38:56 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1792687140; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=txjk6h2eBJ7yoCPY4RxTRfMgnDBsm+i10abL0Ow5+a4=; b=PuvjdE574Jn40NcGL4mcOP9E2mmxzxfbJv6nhPRPLfRgEzQs2d/lD8gN80C5RXeMCiFGkj nEXMVkh1UnMTGCitUiQfAC9fEjrpKbXYXnLWpirvuD43BpSTY2Tz7A4iKZK+1yAGVVmBjo OAgd9dMlptVhoi1vIg3EOD95UjMxPq/XdIoSmzPo+HvnmXLSUXGApBXA+SKdakOwBu+wpr zGevowIvQOanSW0/bhdqBz0ne2GNind09DQlJ7xEjdtBKeBDbL5wa3wby0M9ml7pmDDjYU 7HtGALciOLdBKD0gVqj6dYJTLboBasXc7SiNMlJCo0X2yiWAVeF1Km+VADhqzQ== From: Kory Maincent Date: Thu, 22 Oct 2026 18:38:00 +0200 Subject: [PATCH v4 4/8] drm/i915/display/dp: Read DPCD DSC capabilities in any case X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261022-feat_link_cap-v4-4-a4f3f6e8cad9@bootlin.com> References: <20261022-feat_link_cap-v4-0-a4f3f6e8cad9@bootlin.com> In-Reply-To: <20261022-feat_link_cap-v4-0-a4f3f6e8cad9@bootlin.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jani Nikula , Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Chun-Kuang Hu , Philipp Zabel , Matthias Brugger , AngeloGioacchino Del Regno , Dmitry Baryshkov , Daniel Stone Cc: Thomas Petazzoni , Mark Yacoub , Sean Paul , Manasi Navare , Drew Davenport , Louis Chauvet , 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 X-Mailer: b4 0.16.1-dev-17221 X-Last-TLS-Session-Version: TLSv1.3 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 --- 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 89d4b3d348fa8..bbd76c0ff04b6 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -4473,12 +4473,7 @@ 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