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 04CD817741; Sun, 20 Jul 2025 12:02:19 +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=1753012942; cv=none; b=INU2t0ow+VnPOnJ/QqZolHIVxf9nLzp5ENfya0F+4b8SsdosjjVWbfvGNvsrDjmAGl5gl42rX5VjSHRpK+RDnhM+gPa80TvSnHwsOQco8mZU1J6USIY6DYI0guF3v0p8xcmSTE+EimvKIBNhHXeFlWU6KV4+0SxxAmOTJOTy6Jg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753012942; c=relaxed/simple; bh=z7UInY2V+5A/AzQtYe31EauuP8QWRTvlpkfW8x62dEQ=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=QinpoGNNVEDFu8dDjkIQGwf2GmaYIQfKkLf9WIODDTL6DCwAsmyIbhQ7HrQN9w/gnnie6kdL542NWPU0nWXfNbfiYcMBLpdQUQgpBmDAoxgZkPU0K8cuS4zJtZGk5K1KewPMbYVwfGbVF4xITtMAee7NAzRt8hwWabfcDygWnOc= 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=KBOyZuH4; 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="KBOyZuH4" Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 640D325DA1; Sun, 20 Jul 2025 14:02:12 +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 iwt8Xl3-yt6y; Sun, 20 Jul 2025 14:02:11 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1753012931; bh=z7UInY2V+5A/AzQtYe31EauuP8QWRTvlpkfW8x62dEQ=; h=From:Subject:Date:To:Cc; b=KBOyZuH4Ecm7kqnX0sWekVAqNY0FyqQUW4taiOQE4oMyYvIaH4xFtUSqp+ek1qJR7 zerS1pzUw9BOXAZ7Jp+DCzsk+02ScTJpBdSS8VtTlgw1I2qlvW5gZV34UcYVGIrWu7 8B62MZEKOPJ8N7bysML0txUqLajcGfxuZAVyNTTXwRUQn0UtEuRuaXR+AFZwroH9Z8 F+/NapKFyhucBX3M5lOdZTGSWd8mLbTKD9zTAuqHKyTw7cj9lYdTV/YflzAY7egD4H W92uNkiv2+RqRjJQg2sz+KC5gvw/Ez+TXvKedGaM3VBrNZWCXi13/P3EYV2GHEq14g 4DiLipCptdt8Q== From: Kaustabh Chakraborty Subject: [PATCH v3 0/2] Support for Synaptics TDDI series panels Date: Sun, 20 Jul 2025 17:31:53 +0530 Message-Id: <20250720-panel-synaptics-tddi-v3-0-43a5957f4b24@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=H4sIALHafGgC/3XNTQqDMBCG4atI1k1JJsZIV71H6SK/OlCMJCIV8 e6NdtNCu3w/mGdWkn1Cn8mlWknyM2aMQwlxqojt9dB5iq40AQaSSRB01IN/0LwMepzQZjo5h5Q ZZkRgKrS8JuV0TD7g82Bv99I95imm5fgy8319gw2H3+DMKaMumFbXIINq7NVhTjFO55g6spMzf DAg/zBQGKUb0IY7Lqz6ZrZtewFjhD9kAQEAAA== 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=1753012923; l=1952; i=kauschluss@disroot.org; s=20250202; h=from:subject:message-id; bh=z7UInY2V+5A/AzQtYe31EauuP8QWRTvlpkfW8x62dEQ=; b=g1zKgQ1Y+6w3mlITGjx3sHpmfGU82CJFK8NEX2y40l0Q//jEZpCURnKYU5h7da5MOQcFpGaES I7EzK91pmTmAy+jCDj0IJ5tdUBh4ZtQ7LDhtjvxi50ITvIN1CpgGW3M 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 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 | 289 +++++++++++++++++++++ 4 files changed, 390 insertions(+) --- base-commit: d086c886ceb9f59dea6c3a9dae7eb89e780a20c9 change-id: 20250523-panel-synaptics-tddi-0b0b3f07f814 Best regards, -- Kaustabh Chakraborty