From patchwork Tue Jul 19 19:17:59 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: 592047 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 C2471CCA47F for ; Tue, 19 Jul 2022 19:18:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238785AbiGSTSu (ORCPT ); Tue, 19 Jul 2022 15:18:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239095AbiGSTSm (ORCPT ); Tue, 19 Jul 2022 15:18:42 -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 31F2854665; Tue, 19 Jul 2022 12:18:38 -0700 (PDT) Received: from pro2.mail.ovh.net (unknown [10.109.156.240]) by mo3004.mail-out.ovh.net (Postfix) with ESMTPS id 50088243167; Tue, 19 Jul 2022 19:18:37 +0000 (UTC) Received: from localhost.localdomain (88.161.25.233) by DAG1EX1.emp2.local (172.16.2.1) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.9; Tue, 19 Jul 2022 21:18:36 +0200 From: Jean-Jacques Hiblot To: , , , CC: , , , , , , , Jean-Jacques Hiblot Subject: [PATCH v2 2/4] leds: class: store the color index in struct led_classdev Date: Tue, 19 Jul 2022 21:17:59 +0200 Message-ID: <20220719191801.345773-3-jjhiblot@traphandler.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220719191801.345773-1-jjhiblot@traphandler.com> References: <20220719191801.345773-1-jjhiblot@traphandler.com> MIME-Version: 1.0 X-Originating-IP: [88.161.25.233] X-ClientProxiedBy: DAG2EX1.emp2.local (172.16.2.11) To DAG1EX1.emp2.local (172.16.2.1) X-Ovh-Tracer-Id: 255860757752134107 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: 0 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvfedrudeltddgudefiecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecunecujfgurhephffvvefufffkofgjfhgggfgtihesthekredtredttdenucfhrhhomheplfgvrghnqdflrggtqhhuvghsucfjihgslhhothcuoehjjhhhihgslhhothesthhrrghphhgrnhgulhgvrhdrtghomheqnecuggftrfgrthhtvghrnhepudetveelveevgffgvdeuffffjefhheehueeitdegtdejgefhheeuuddugeeffeeunecukfhppedtrddtrddtrddtpdekkedrudeiuddrvdehrddvfeefnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmohguvgepshhmthhpohhuthdphhgvlhhopehprhhovddrmhgrihhlrdhovhhhrdhnvghtpdhinhgvtheptddrtddrtddrtddpmhgrihhlfhhrohhmpehjjhhhihgslhhothesthhrrghphhgrnhgulhgvrhdrtghomhdpnhgspghrtghpthhtohepuddprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdpoffvtefjohhsthepmhhofedttdeg Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org This information might be useful for more than only deriving the led's name. Signed-off-by: Jean-Jacques Hiblot --- drivers/leds/led-class.c | 7 +++++++ include/linux/leds.h | 1 + 2 files changed, 8 insertions(+) diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index 2c0d979d0c8a..537379f09801 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -350,6 +350,10 @@ int led_classdev_register_ext(struct device *parent, if (fwnode_property_present(init_data->fwnode, "retain-state-shutdown")) led_cdev->flags |= LED_RETAIN_AT_SHUTDOWN; + + if (fwnode_property_present(init_data->fwnode, "color")) + fwnode_property_read_u32(init_data->fwnode, "color", + &led_cdev->color); } } else { proposed_name = led_cdev->name; @@ -359,6 +363,9 @@ int led_classdev_register_ext(struct device *parent, if (ret < 0) return ret; + if (led_cdev->color >= LED_COLOR_ID_MAX) + dev_warn(parent, "LED %s color identifier out of range\n", final_name); + mutex_init(&led_cdev->led_access); mutex_lock(&led_cdev->led_access); led_cdev->dev = device_create_with_groups(leds_class, parent, 0, diff --git a/include/linux/leds.h b/include/linux/leds.h index ba4861ec73d3..fe6346604e36 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -71,6 +71,7 @@ struct led_classdev { const char *name; unsigned int brightness; unsigned int max_brightness; + unsigned int color; int flags; /* Lower 16 bits reflect status */ From patchwork Tue Jul 19 19:18:00 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: 592046 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 D5F4ACCA47F for ; Tue, 19 Jul 2022 19:19:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234838AbiGSTTJ (ORCPT ); Tue, 19 Jul 2022 15:19:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40922 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239095AbiGSTS4 (ORCPT ); Tue, 19 Jul 2022 15:18:56 -0400 Received: from smtpout1.mo528.mail-out.ovh.net (smtpout1.mo528.mail-out.ovh.net [46.105.34.251]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4993A550BD; Tue, 19 Jul 2022 12:18:55 -0700 (PDT) Received: from pro2.mail.ovh.net (unknown [10.108.1.33]) by mo528.mail-out.ovh.net (Postfix) with ESMTPS id B3616119C4175; Tue, 19 Jul 2022 21:18:37 +0200 (CEST) Received: from localhost.localdomain (88.161.25.233) by DAG1EX1.emp2.local (172.16.2.1) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.9; Tue, 19 Jul 2022 21:18:37 +0200 From: Jean-Jacques Hiblot To: , , , CC: , , , , , , , Jean-Jacques Hiblot Subject: [PATCH v2 3/4] dt-bindings: leds: Add binding for a multicolor group of LEDs Date: Tue, 19 Jul 2022 21:18:00 +0200 Message-ID: <20220719191801.345773-4-jjhiblot@traphandler.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220719191801.345773-1-jjhiblot@traphandler.com> References: <20220719191801.345773-1-jjhiblot@traphandler.com> MIME-Version: 1.0 X-Originating-IP: [88.161.25.233] X-ClientProxiedBy: DAG2EX1.emp2.local (172.16.2.11) To DAG1EX1.emp2.local (172.16.2.1) X-Ovh-Tracer-Id: 255860755238107611 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: 0 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvfedrudeltddgudefiecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecunecujfgurhephffvvefufffkofgjfhgggfgtihesthekredtredttdenucfhrhhomheplfgvrghnqdflrggtqhhuvghsucfjihgslhhothcuoehjjhhhihgslhhothesthhrrghphhgrnhgulhgvrhdrtghomheqnecuggftrfgrthhtvghrnheptddtffevleejteelieejhfffvedtffeljeehjeeigfejledufedvveejuddtjefhnecuffhomhgrihhnpeguvghvihgtvghtrhgvvgdrohhrghenucfkpheptddrtddrtddrtddpkeekrdduiedurddvhedrvdeffeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhhouggvpehsmhhtphhouhhtpdhhvghlohepphhrohdvrdhmrghilhdrohhvhhdrnhgvthdpihhnvghtpedtrddtrddtrddtpdhmrghilhhfrhhomhepjhhjhhhisghlohhtsehtrhgrphhhrghnughlvghrrdgtohhmpdhnsggprhgtphhtthhopedupdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdfovfetjfhoshhtpehmohehvdek Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org This allows to group multiple monochromatic LEDs into a multicolor LED, e.g. RGB LEDs. Signed-off-by: Jean-Jacques Hiblot --- .../bindings/leds/leds-group-multicolor.yaml | 61 +++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-group-multicolor.yaml diff --git a/Documentation/devicetree/bindings/leds/leds-group-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-group-multicolor.yaml new file mode 100644 index 000000000000..79e5882a08e2 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-group-multicolor.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-group-multicolor.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Multi-color LED built with monochromatic LEDs + +maintainers: + - Jean-Jacques Hiblot + +description: | + This driver combines several monochromatic LEDs into one multi-color + LED using the multicolor LED class. + +properties: + compatible: + const: leds-group-multicolor + + leds: + description: + An aray of monochromatic leds + $ref: /schemas/types.yaml#/definitions/phandle-array + +required: + - leds + +allOf: + - $ref: leds-class-multicolor.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + #include + + monochromatic-leds { + compatible = "gpio-leds"; + + led0: led-0 { + gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>; + }; + + led1: led-1 { + gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>; + }; + + led2: led-2 { + gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>; + }; + }; + + multi-led { + compatible = "leds-group-multicolor"; + color = ; + function = LED_FUNCTION_INDICATOR; + leds = <&led0>, <&led1>, <&led2>; + }; + +...