From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from layka.disroot.org (layka.disroot.org [178.21.23.139]) (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 CA60D273D6D; Wed, 20 Aug 2025 14:25:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.21.23.139 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755699948; cv=none; b=dTV7TlfKRMiNUCbSzAAA7CQycOFiribH0+J5vdwwkVsFfTI/WomHl+OGRnESEQGgrfjGqKYhwb4RUhfkM3hX4oHZ79aYZnBYxWhVjim0oihi2MJQ8lH/llWTciZvPOuM57QveLSEKFprHZYWKS0jdI0tSuo3TYOC8ppJ7a/TO4Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755699948; c=relaxed/simple; bh=+fmM1LXL5j8cHsgbj61uU+OuNanXHVoMioQvqNc3PKg=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=ABzjwYlIeucmip7Q/6oWgx9ihk4EQTYvdC9Tum2zWsSs9cW6IS3pCMS7G5fEozcZNWYFOdd+GXqL3BQphWBP9nkuoSZ75UhbnTARagQ8TN9LkqtY3a2uqr0v/0UUyilSGe4IvFZ19lxA3JCOj0L+IpDo1pcWsToAFIk6KJu1USE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org; spf=pass smtp.mailfrom=disroot.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b=l7E0Qk2g; arc=none smtp.client-ip=178.21.23.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=disroot.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b="l7E0Qk2g" Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 9D1F822C2E; Wed, 20 Aug 2025 16:25:36 +0200 (CEST) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id Al3LunUHI8-A; Wed, 20 Aug 2025 16:25:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1755699935; bh=+fmM1LXL5j8cHsgbj61uU+OuNanXHVoMioQvqNc3PKg=; h=From:Subject:Date:To:Cc; b=l7E0Qk2gjtkYmmipFdjx0ZGRddyIxKaLIO/1VLQz23zTDlfWxeBjy3vLFCsKEv90i oMc5wGejVHfGVI44vvQTZVF877eccyjuMNwz6Ks6RpC3VJOVZEsCwiq7kNhoX+RX/E snP3xWdneOKjhlshqWWGM9KzOli/YnZTjmi6iOPj530IK5pyvfLOi/77wXLGTVIA0T FCn15LLXLOlDyyWSJ4+iNEWshNU+hm2IqF/LXOFiphHEjPp+sz4KJU/Hi0cfB1qWiQ epqc0XZ4RE57idOTplG4R4ixCBF4mcYflzXtyvLej71Zm7efzoqnJlcFuaq8rLchFi H8ZMHW/toTI1A== From: Kaustabh Chakraborty Subject: [PATCH v5 0/2] Support for Synaptics TDDI series panels Date: Wed, 20 Aug 2025 19:54:25 +0530 Message-Id: <20250820-panel-synaptics-tddi-v5-0-d4e3fd4987c6@disroot.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAJnapWgC/3XNQW7DIBCF4atErEsEwwBOVr1H1QUYSEaqjAWW1 Sjy3YvTRRIlXv5Pmm+urMZCsbLj7spKnKlSHlrojx3rz244RU6hNQMBWmhQfHRD/OH1Mrhxor7 yKQTiwguvkrCpk8ja6Vhiot8b+/Xd+kx1yuVy+zLLdf0HjYT34Cy54CH5ziHoZE3/GaiWnKd9L ie2kjM8MKA3GGiMdQacl0Gq3r4y6s5YEBuMagwqpw/aJvSArwzemU4eNhhcGewSGhOkceaZWZb lD4LX+d2PAQAA X-Change-ID: 20250523-panel-synaptics-tddi-0b0b3f07f814 To: Neil Armstrong , Jessica Zhang , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jessica Zhang Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kaustabh Chakraborty , Krzysztof Kozlowski X-Developer-Signature: v=1; a=ed25519-sha256; t=1755699927; l=2374; i=kauschluss@disroot.org; s=20250202; h=from:subject:message-id; bh=+fmM1LXL5j8cHsgbj61uU+OuNanXHVoMioQvqNc3PKg=; b=yAqXOkF8iXjx+hRTbGBLKKsSRtu9OLZ/muJBENmny9ZQrIV2uV28FK5nZTAuwJHy76g41qPsv V2QlAnlQowfAIMuaMqICh+wbsuxZnNQ1qqKRUBlgQ21xkeOg9Re8Kr2 X-Developer-Key: i=kauschluss@disroot.org; a=ed25519; pk=h2xeR+V2I1+GrfDPAhZa3M+NWA0Cnbdkkq1bH3ct1hE= Synaptics' Touch and Display Driver Integration (TDDI) technology [1] employs a single chip for both touchscreen and display capabilities. Such designs reportedly help reducing costs and power consumption. Although the touchscreens, which are powered by Synaptics' Register-Mapped Interface 4 (RMI4) touch protocol via I2C or SPI have driver support in the kernel, the MIPI DSI display panels don't. This series introduces a rudimentary driver for controlling said display panels, which supports TD4101 and TD4300 panels. [1] https://www.synaptics.com/technology/display-integration Signed-off-by: Kaustabh Chakraborty --- Changes in v5: - added missing Reviewed-by tag from Krzysztof in [v3 1/2] - Link to v4: https://lore.kernel.org/r/20250819-panel-synaptics-tddi-v4-0-448f466d16a6@disroot.org Changes in v4: - utilized drm_connector_helper_get_modes_fixed() (dmitry.baryshkov) - constified backlight properties (dmitry.baryshkov) - Link to v3: https://lore.kernel.org/r/20250720-panel-synaptics-tddi-v3-0-43a5957f4b24@disroot.org Changes in v3: - fixed various dt_binding_check errors (robh's bot) - adjusted commit description of [v2 1/2] (robh) - utilized devm_drm_panel_alloc() and devm_regulator_bulk_get_const() - Link to v2: https://lore.kernel.org/r/20250625-panel-synaptics-tddi-v2-0-7a62ab1d13c7@disroot.org Changes in v2: - fixed various dt_binding_check errors (conor) - did s/tddi_update_brightness/tddi_update_status - added check for panel enable in tddi_update_status() - used backlight_get_brightness() in appropriate places - Link to v1: https://lore.kernel.org/r/20250612-panel-synaptics-tddi-v1-0-dfb8a425f76c@disroot.org --- Kaustabh Chakraborty (2): dt-bindings: display: panel: document Synaptics TDDI panel drm: panel: add support for Synaptics TDDI series DSI panels .../display/panel/synaptics,td4300-panel.yaml | 89 +++++++ drivers/gpu/drm/panel/Kconfig | 11 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-synaptics-tddi.c | 276 +++++++++++++++++++++ 4 files changed, 377 insertions(+) --- base-commit: 5303936d609e09665deda94eaedf26a0e5c3a087 change-id: 20250523-panel-synaptics-tddi-0b0b3f07f814 Best regards, -- Kaustabh Chakraborty