From nobody Mon Feb 9 11:26:57 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BDCCB13E413; Wed, 27 Mar 2024 12:10:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711541404; cv=none; b=s3CNaugRd2gP3JFVT1K3warBzhyHMXK93BTHsq5fYuFsb9UGc4xkmdKpTkKumsW7E93nw9m98Hv1Vom03ZcDawMdaOBMgIBrleM0ffGkFn6ThiTmPQTZVmEJhr3CiwMKV/wdD8nmALzdV9l7eFpADTpw3ByhwRr0g43FThXNR7U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711541404; c=relaxed/simple; bh=RWEIZ255bmbgDlx7jX6+2xTRGrPjXnnv6wh8EEn9Vt0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=hxHYDl97MfbtpTlzM0NIBSneNS80iSm6a8O7L0yEfJZ1tMLpzjxYFNZRfU8lGqY9kq3rnXvpuS40UOgfkKUEoH7SxFBxUC5o2SpmsYQQgsT2Pu4Ubt57guTaqcOkXVb/zXUmrgefhI6M8aMQyDYmy2e8+CfY2FTdfusZ7Wju2sA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Mha8lhqi; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Mha8lhqi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0BA7C433C7; Wed, 27 Mar 2024 12:10:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711541404; bh=RWEIZ255bmbgDlx7jX6+2xTRGrPjXnnv6wh8EEn9Vt0=; h=From:To:Cc:Subject:Date:From; b=Mha8lhqiBPZaR7/fWt0cpTHXOJ5/f2LFA6j3eIjl57RPbLuhp2YVXZ1wPtwNrv76t RPNotuhf3Je2wzlzmsHknn5n7gFfKBK7qer72dT6hZcf/c9mP2AfBHYkSYSLKbwXQt 6NM2RITspTFlF7JxViRTbKam4uNSlbg9RZ4IcTm6MybQXNQqKAskt3Ebi8idZIc/e0 mFGrfrqAz1XzWvVad1sQNoKcQaSnKmyHUGl5Z5nVMgPLicvEblhDyT2Hb9LNeSAezM nNCLsF7v5lcAUmd5RYN4P6bwLNPtPJICUzt2nhGKFVACyL9egpiKQHzht68a1Jr5Mh QTr/P4ycfVNMg== From: Sasha Levin To: stable@vger.kernel.org, ville.syrjala@linux.intel.com Cc: Jani Nikula , intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: FAILED: Patch "drm/i915/dp: Limit SST link rate to <=8.1Gbps" failed to apply to 6.6-stable tree Date: Wed, 27 Mar 2024 08:10:02 -0400 Message-ID: <20240327121002.2827540-1-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha Reviewed-by: Jani Nikula ------------------ original commit in Linus's tree ------------------ From 6061811d72e14f41f71b6a025510920b187bfcca Mon Sep 17 00:00:00 2001 From: =3D?UTF-8?q?Ville=3D20Syrj=3DC3=3DA4l=3DC3=3DA4?=3D Date: Thu, 8 Feb 2024 17:45:52 +0200 Subject: [PATCH] drm/i915/dp: Limit SST link rate to <=3D8.1Gbps MIME-Version: 1.0 Content-Type: text/plain; charset=3DUTF-8 Content-Transfer-Encoding: 8bit Limit the link rate to HBR3 or below (<=3D8.1Gbps) in SST mode. UHBR (10Gbps+) link rates require 128b/132b channel encoding which we have not yet hooked up into the SST/no-sideband codepaths. Cc: stable@vger.kernel.org Signed-off-by: Ville Syrj=C3=A4l=C3=A4 Link: https://patchwork.freedesktop.org/patch/msgid/20240208154552.14545-1-= ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_dp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915= /display/intel_dp.c index ab415f41924d7..5045c34a16be1 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2356,6 +2356,9 @@ intel_dp_compute_config_limits(struct intel_dp *intel= _dp, limits->min_rate =3D intel_dp_common_rate(intel_dp, 0); limits->max_rate =3D intel_dp_max_link_rate(intel_dp); =20 + /* FIXME 128b/132b SST support missing */ + limits->max_rate =3D min(limits->max_rate, 810000); + limits->min_lane_count =3D 1; limits->max_lane_count =3D intel_dp_max_lane_count(intel_dp); =20 --=20 2.43.0