From patchwork Mon Dec 11 12:14:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamel Bouhara X-Patchwork-Id: 753720 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="SG4QWu6F" Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44C34CF; Mon, 11 Dec 2023 04:14:40 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id D62221C0004; Mon, 11 Dec 2023 12:14:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702296879; 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=li3fkgdd1h7/PzgJbhx3icmAeCcuFW9T2WdfuNDW6JQ=; b=SG4QWu6FXf80+rGPX80bz9b7PZQ9sx8IfQdWv1GfVP67U5CttsGLVDrc4zg9sQdfh0L/NQ p4b/6qXSiKg3WDzYOh6RO8ctKDzpIfVkyTGMSOR94ZVGORCxB8570y2PVrj911u3NuFLkp L5bu/xMxtLx48F9JIYXQ18XbhN/drNU6qKtPALyMf54AQ7yTaGe6ahY6C5eSROZBNj6Fdt BLvjTRnrg2DAlNLPUHnj3vjqP5n8iKEBopTU7dvsxKuv4nWiy8O0Ydrj6GoLkW0j/BTLlK zbE76kdp/+rwdSIrUtsGS/yJ9d9KihJo93ALyaok6ZG5JF1oyOAk02/IQD3x9A== From: Kamel Bouhara To: Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Henrik Rydberg , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Marco Felsch , Jeff LaBundy Cc: catalin.popescu@leica-geosystems.com, mark.satterthwaite@touchnetix.com, bartp@baasheep.co.uk, hannah.rossiter@touchnetix.com, Thomas Petazzoni , Gregory Clement , bsp-development.geo@leica-geosystems.com, Kamel Bouhara Subject: [PATCH v5 0/3] Input: Add TouchNetix axiom touchscreen driver Date: Mon, 11 Dec 2023 13:14:26 +0100 Message-ID: <20231211121430.1689139-1-kamel.bouhara@bootlin.com> X-Mailer: git-send-email 2.42.0 Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: kamel.bouhara@bootlin.com Add a new driver for the TouchNetix's axiom family of touchscreen controller. This driver only support i2c and can be later adapted for SPI and USB support. --- Changes in v2: - Add device tree binding documentation - Move core functions in axiom_i2c as we only care about i2c support now - Use static function when required - Use syntax dev_err_probe() - Add an hardware based reset Changes in v3: - Remove irq-gpios property in dt-binding - Use a generic node name - Fix issues reported in https://lore.kernel.org/oe-kbuild-all/202310100300.oAC2M62R-lkp@intel.com/ Changes in v4: - Cleanup unused headers and macros - Use standard kernel type - Namespace structures and functions - Use packed struct when possible to avoid bitfield operators - Fix missing break when address is found in axiom_populate_target_address() - Split reads in two steps for the reports, first length then report itself so we only read required bytes - Get poll-interval from devicetree - Add VDDI/VDDA regulators - Add a startup delay of 110 ms required after VDDA/VDDI is applied - Remove axiom_i2c_write() as it is no more used Changes in v5: - Fix wrong message constructed in axiom_i2c_read - Delay required between i2c reads is >= 250us - Do not split report reading in two phases as we'll have to wait 500us - Use lower-case in properties names - Make regulators properties are required in dt-binding - Fix bug report: https://lore.kernel.org/lkml/202312051457.y3N1q3sZ-lkp@intel.com/ - Fix bug report: https://lore.kernel.org/lkml/6f8e3b64-5b21-4a50-8680-063ef7a93bdb@suswa.mountain/ Kamel Bouhara (3): dt-bindings: vendor-prefixes: Add TouchNetix AS dt-bindings: input: Add TouchNetix axiom touchscreen Input: Add TouchNetix axiom i2c touchscreen driver .../input/touchscreen/touchnetix,ax54a.yaml | 64 ++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 7 + drivers/input/touchscreen/Kconfig | 12 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/touchnetix_axiom.c | 667 ++++++++++++++++++ 6 files changed, 753 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/touchnetix,ax54a.yaml create mode 100644 drivers/input/touchscreen/touchnetix_axiom.c -- 2.25.1