From patchwork Mon Jun 27 08:38:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Jacques Hiblot X-Patchwork-Id: 585359 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48B6BC43334 for ; Mon, 27 Jun 2022 08:38:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232730AbiF0Iir (ORCPT ); Mon, 27 Jun 2022 04:38:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231721AbiF0Iiq (ORCPT ); Mon, 27 Jun 2022 04:38:46 -0400 Received: from smtpout1.mo3004.mail-out.ovh.net (smtpout1.mo3004.mail-out.ovh.net [79.137.123.219]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB77460FF; Mon, 27 Jun 2022 01:38:44 -0700 (PDT) Received: from pro2.mail.ovh.net (unknown [10.108.16.183]) by mo3004.mail-out.ovh.net (Postfix) with ESMTPS id A955D243C93; Mon, 27 Jun 2022 08:38:43 +0000 (UTC) Received: from localhost.localdomain (88.161.25.233) by DAG1EX2.emp2.local (172.16.2.2) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.9; Mon, 27 Jun 2022 10:38:43 +0200 From: Jean-Jacques Hiblot To: , , , CC: , , , Jean-Jacques Hiblot Subject: [PATCH v6 1/3] dt-bindings: leds: Add bindings for the TLC5925 controller Date: Mon, 27 Jun 2022 10:38:33 +0200 Message-ID: <20220627083835.106676-2-jjhiblot@traphandler.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220627083835.106676-1-jjhiblot@traphandler.com> References: <20220627083835.106676-1-jjhiblot@traphandler.com> MIME-Version: 1.0 X-Originating-IP: [88.161.25.233] X-ClientProxiedBy: CAS1.emp2.local (172.16.1.1) To DAG1EX2.emp2.local (172.16.2.2) X-Ovh-Tracer-Id: 7823596980943862235 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: 0 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvfedrudeghedgtdeiucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucenucfjughrpefhvfevufffkffojghfggfgtghisehtkeertdertddtnecuhfhrohhmpeflvggrnhdqlfgrtghquhgvshcujfhisghlohhtuceojhhjhhhisghlohhtsehtrhgrphhhrghnughlvghrrdgtohhmqeenucggtffrrghtthgvrhhnpedttdffveeljeetleeijefhffevtdffleejheejiefgjeeludefvdevjedutdejhfenucffohhmrghinhepuggvvhhitggvthhrvggvrdhorhhgnecukfhppedtrddtrddtrddtpdekkedrudeiuddrvdehrddvfeefnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmohguvgepshhmthhpohhuthdphhgvlhhopehprhhovddrmhgrihhlrdhovhhhrdhnvghtpdhinhgvtheptddrtddrtddrtddpmhgrihhlfhhrohhmpehjjhhhihgslhhothesthhrrghphhgrnhgulhgvrhdrtghomhdpnhgspghrtghpthhtohepuddprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdpoffvtefjohhsthepmhhofedttdeg Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add bindings documentation for the TLC5925 LED controller. Signed-off-by: Jean-Jacques Hiblot Reviewed-by: Andy Shevchenko Reviewed-by: Rob Herring --- .../devicetree/bindings/leds/ti,tlc5925.yaml | 105 ++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/ti,tlc5925.yaml diff --git a/Documentation/devicetree/bindings/leds/ti,tlc5925.yaml b/Documentation/devicetree/bindings/leds/ti,tlc5925.yaml new file mode 100644 index 000000000000..ce376917b423 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/ti,tlc5925.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/ti,tlc5925.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LEDs connected to TI TLC5925 controller + +maintainers: + - Jean-Jacques Hiblot + +description: | + The TLC5925 is a low-power 16-channel constant-current LED sink driver. + It is controlled through a SPI interface. + It is built around a shift register and latches which convert serial + input data into a parallel output. Several TLC5925 can be chained to + control more than 16 LEDs with a single chip-select. + The brightness level cannot be controlled, each LED is either on or off. + + Each LED is represented as a sub-node of the ti,tlc5925 device. + +$ref: /schemas/spi/spi-peripheral-props.yaml# + +properties: + compatible: + const: ti,tlc5925 + + ti,shift-register-length: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 8 + multipleOf: 8 + description: + The length of the shift register. If several TLC5925 are chained, + shift_register_length should be set to 16 times the number of TLC5925. + The value must be a multiple of 8. + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + output-enable-b-gpios: + description: + Optional GPIO pins to enable/disable the parallel output. They describe + the GPIOs connected to the OE/ pin of the TLC5925s. + +patternProperties: + "@[0-9a-f]+$": + type: object + $ref: common.yaml# + unevaluatedProperties: false + properties: + reg: + description: + LED pin number (must be lower than ti,shift-register-length). + The furthest LED down the chain has the pin number 0. + + required: + - reg + +required: + - "#address-cells" + - "#size-cells" + +unevaluatedProperties: false + +examples: + - | + #include + #include + + spi { + #address-cells = <1>; + #size-cells = <0>; + + leds@2 { + compatible = "ti,tlc5925"; + reg = <0x02>; + spi-max-frequency = <30000000>; + ti,shift-register-length = <32>; + output-enable-b-gpios = <&gpio0b 9 GPIO_ACTIVE_HIGH>, <&gpio0b 7 GPIO_ACTIVE_HIGH>; + #address-cells = <1>; + #size-cells = <0>; + + led@0 { + reg = <0>; + function = LED_FUNCTION_STATUS; + color = ; + }; + + led@4 { + reg = <4>; + function = LED_FUNCTION_STATUS; + color = ; + }; + + led@1f { + reg = <31>; + function = LED_FUNCTION_PANIC; + color = ; + }; + }; + + };