From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.tuxedocomputers.com (mail.tuxedocomputers.com [157.90.84.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC48942CAF0 for ; Fri, 7 Aug 2026 20:07:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=157.90.84.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786133246; cv=none; b=N8ucHbnqv27vRwtBvlKQfB3hf5L+qXm27WU22a8Ulx7irJLZwkqKmKSkffX2AbejEgKTAV2FZlX/fRWhTJiJWMUUfiMQCHycVI2IPp5GzI0zgjSJNtYYB7VnjZWQyAueL+bM/awIUCgm0IHhLCGUU21f7RSZg8OXR4sQYXy99wU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786133246; c=relaxed/simple; bh=YhIf8OnMEPQGxqp/ojLdzTG4Z3ZvPTt/G/BxO9ZtdIs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=icEsYsjQYy7GD1jaV6/YelzWkhZ6Mq2+sBU2qkBbhcM1AQWkZu+DP3aVL7Tg5fHw+5Bjpw/N0INb41mDD557bWXoiN6cvCQ6IYvwXysIcI8yFbN+wUdTRa96hiCQ810VSHQOTKBswBWmcPQWfRrjCwsgEo14uwBK2T4S/M/YVnI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tuxedocomputers.com; spf=pass smtp.mailfrom=tuxedocomputers.com; dkim=pass (1024-bit key) header.d=tuxedocomputers.com header.i=@tuxedocomputers.com header.b=Zney+X1+; arc=none smtp.client-ip=157.90.84.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tuxedocomputers.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tuxedocomputers.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=tuxedocomputers.com header.i=@tuxedocomputers.com header.b="Zney+X1+" Received: from wsembach-tuxedo.buero.augsburg.tuxedo.de (host-212-18-30-247.customer.m-online.net [212.18.30.247]) (Authenticated sender: wse@tuxedocomputers.com) by mail.tuxedocomputers.com (Postfix) with ESMTPA id 31CDF2FC0049; Fri, 7 Aug 2026 22:07:17 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxedocomputers.com; s=default; t=1786133239; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=92z7e6+vfZcMyJwAWZmIBOL5/EXTZgvHjPTNDym0thU=; b=Zney+X1+wxXYHv1GRhSBleITJyRuXtpYSkqNo7osqNe0LVsyP4fGBgaGqAVxiSWQYAPd/Y iWsevXszrCvb0XjuRuMDatLE83twB8cyo+Ma4q109OejMg1mhNNpARSbDDsULK9XfjI2Oj fNXFHWjaQzHCX42Dc9HNqTsG6RCbrZU= Authentication-Results: mail.tuxedocomputers.com; auth=pass smtp.auth=wse@tuxedocomputers.com smtp.mailfrom=wse@tuxedocomputers.com From: Werner Sembach To: jani.nikula@linux.intel.com, rodrigo.vivi@intel.com, joonas.lahtinen@linux.intel.com, tursulin@ursulin.net, airlied@gmail.com, simona@ffwll.ch Cc: wse@tuxedocomputers.com, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/1] drm/i915/display: Add quirk to force backlight type on some TUXEDO devices Date: Fri, 7 Aug 2026 22:04:29 +0200 Message-ID: <20260807200709.464343-1-wse@tuxedocomputers.com> 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 Content-Transfer-Encoding: 8bit Since the proposed general fix, fixed the backlight on TUXEDO devices, but broke it on other ones: - https://gitlab.freedesktop.org/drm/i915/kernel/-/work_items/15679#note_3581777 - https://lore.kernel.org/all/20260515155340.1000997-1-suraj.kandpal@intel.com/ I'm back here again proposing the fix via a quirk. I therefore rebased https://lore.kernel.org/all/20260121223944.1104951-1-wse@tuxedocomputers.com/ to cleanly apply on current drm-tip. V1->V2: Switch from dmis trings to PCI-IDs V2->V3: Rebase onto current drm-tip V3->V4: Better commit message and added comment in code Werner Sembach (1): drm/i915/display: Add quirk to force backlight type on some TUXEDO devices .../drm/i915/display/intel_dp_aux_backlight.c | 22 ++++++++++++++++- drivers/gpu/drm/i915/display/intel_quirks.c | 24 +++++++++++++++++++ drivers/gpu/drm/i915/display/intel_quirks.h | 1 + 3 files changed, 46 insertions(+), 1 deletion(-) base-commit: 665722ddd6884c57624bd82d7ab886cf11a7b6f8 -- 2.43.0