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 91BB129B201; Wed, 25 Jun 2025 10:09:05 +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=1750846148; cv=none; b=KFaF2n3mxPec7+LmbKjT+trqAOy7ma5+46fbt9Gp24HVC7VIULc/vnwKGI7o0RRwEj85JlAPD6JUwF9AxjSwown0XqzB9ingLd8v2RPyOhxN784NWDst8hO2oLT00zj/gNTKz2nB0fYuL5MLXB7hJRoBRwbvliBSHXwYUaA8dbw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750846148; c=relaxed/simple; bh=hjJkA7oFAzYjbGdayYCi8BOgbIBdaazZmbsyFQXc0kY=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=LiDstuh3SGN57WhQHxRlf+AmdyVVW7aIj/P39uZMKy9n1lWjkFbjDkJeC1XpuS2/3MV+BUdEob5wx1l3Dm341X8VxgZ4D3g8AtLbemYKp+h0whegXNtdS3qm2tyFZEvDgXUNmS/VXchkwDnyVJlVt1Ei2W+McNjgpwVh04OEoUI= 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=QynfdMMn; 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="QynfdMMn" Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 7B3822609A; Wed, 25 Jun 2025 12:09:03 +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 XcpVnPu1ntrc; Wed, 25 Jun 2025 12:09:02 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1750846142; bh=hjJkA7oFAzYjbGdayYCi8BOgbIBdaazZmbsyFQXc0kY=; h=From:Subject:Date:To:Cc; b=QynfdMMnnEWy4LmP7h1NpFYQrOzNGFg1/fo6ZNn4qEf20zeqqvWJBv4iMzIVis1kb GJnhaXYAKTJMXQPlSe2B4xhXsemJcq8BD3DngaWNnIvIm2N+6ZgrVEOS9uYf9T8p7v YYCPW1DedeCSBrPJFxzsox822OldWStBce41QWxxzBbNh9c4qUjRks3LfWQUlWKoPA 5pTUXXRQ0spIsbmdLNM8q92SnSk7TiEgzrhrgTT68k10rkxyW0XIBbvAwBxNE96Nlh HgaORMf5We0K/BpkrPGLy/gM8K3dnj4BvyBkqS6VLdMkeL+R2FlRdPIokZfxLZaT4p 1u5fI67164E2A== From: Kaustabh Chakraborty Subject: [PATCH v2 0/2] Support for Synaptics TDDI series panels Date: Wed, 25 Jun 2025 15:38:43 +0530 Message-Id: <20250625-panel-synaptics-tddi-v2-0-7a62ab1d13c7@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=H4sIAKvKW2gC/22NywqDMBBFf0Vm3SlJfNKV/1FcRJPoQEkkE6Qi/ ntTu+3yHLjnHsA2kmV4FAdEuxFT8BnUrYBp0X62SCYzKKFqUasSV+3tC3n3ek00MSZjCMUoxtK J1nWygjxdo3X0vrLPIfNCnELcr5dNfu0v2Ej1P7hJFGjc2OlK1a5tpt4QxxDSPcQZhvM8Px6Hq eC6AAAA 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 X-Developer-Signature: v=1; a=ed25519-sha256; t=1750846137; l=1665; i=kauschluss@disroot.org; s=20250202; h=from:subject:message-id; bh=hjJkA7oFAzYjbGdayYCi8BOgbIBdaazZmbsyFQXc0kY=; b=i47/lAM2LOwTqd49rCoZONdX2gAZm0z02eIyQHO9e7Ku0i6I9GGwZ+aCUYFzqBAt8o0edpRAi ngKaUTKfOnmBfID9AqR/VbE+Q/tRawWGDvgRJQWKbYgBAAhqGGoblk1 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 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 driver 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 | 288 +++++++++++++++++++++ 4 files changed, 389 insertions(+) --- base-commit: 1b152eeca84a02bdb648f16b82ef3394007a9dcf change-id: 20250523-panel-synaptics-tddi-0b0b3f07f814 Best regards, -- Kaustabh Chakraborty