From patchwork Thu Jul 25 18:28:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 169746 Delivered-To: patch@linaro.org Received: by 2002:ac9:2daa:0:0:0:0:0 with SMTP id g42csp4403134oce; Thu, 25 Jul 2019 11:28:57 -0700 (PDT) X-Google-Smtp-Source: APXvYqwYCi+EVvQhIVf+ihqmnxmAp5fA6mliXbb6gGjxHYCXkIVPvWwUjB/ev4lOBZSObyNmQZnO X-Received: by 2002:aa7:8b52:: with SMTP id i18mr18309601pfd.194.1564079337307; Thu, 25 Jul 2019 11:28:57 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564079337; cv=none; d=google.com; s=arc-20160816; b=wwPiT8hToE6I4Aj33dORjxNkPTA/QEtSEztUuykaNpwQMWSIyIkkNuNuoQkqsKp1/s Js0dTsdzL+HBPCcDRjw9OO6h57W+XjsUB3yAUy2AiAZ4yv7Jf9Ryek1nRIY8wDB6PGcu f5bKzfnHfD35Vu/2cegVW3gQHmyTpmTNUOyZfob52p0d4kg1E5Xopj0NZubEtBZjGFwP VB5H8jK1q6X3OgwGlSSV/NajrMO0A58v11SFacIEERE4h/Ol9yed4lQWBXpkooHPFDjo /w/MpHdRssn9K2qJhssL3u7jJvyidC0OkQdV9qBdQo2++tv1RY0Wb+Z8kUdxR1Eg2EnE 7fIQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=qcr4ypaaLHe8OTM4DOVLX6D4nuqeZQhIdKwIxRRQijo=; b=AhXmT7F7bI1svIzLQnd8XoVDxdptA9MddYZsNCec8Ebimvw9CPgYgvzm4LZSrzvSf2 ZldlBORvytMP7uh9ZijT61pEc2meb1Ivazi+4LILLYFyIvSRS9nPIzOK/vXUI1wi4ayP eiDvKdOK3jjDMHQfrJoMuu0iOAl0QKRP/7dxqu/wncrNV9M59a0FxIqtWlyf2kEozraO 6RZTaP+7AadMGgAgr7jM18VlI5x/bnzaFNSVT+g9FB8ASfqkvTVGkDJXXyP4rw5OMP2O xr1dnprfcsXiVSfkyL9lTwl3FJRj4zCrWyO1m5TiK3ro//wD9gZvphNmZnBtH1D+uET1 Ahvw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=pdqOpuIk; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id u17si18430381pgn.387.2019.07.25.11.28.57; Thu, 25 Jul 2019 11:28:57 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=pdqOpuIk; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726483AbfGYS2z (ORCPT + 29 others); Thu, 25 Jul 2019 14:28:55 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:33760 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725800AbfGYS2Z (ORCPT ); Thu, 25 Jul 2019 14:28:25 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id x6PISLYR047413; Thu, 25 Jul 2019 13:28:21 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1564079301; bh=qcr4ypaaLHe8OTM4DOVLX6D4nuqeZQhIdKwIxRRQijo=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=pdqOpuIkJ17R2xNaLP7mxDQI9OiFnGQa2KzmFPdrVW+OAsIBST1tsGKaUwNdQdqwS S2KYC0lHdyQPTy1mTMvlK74Lt4mvov4c7DhdEugg2g17iEjkaxrC+4A1WnCout2oiu 0NEXai8foeJKDid8RafMLg4yAi7+JuQmrwlbyiWc= Received: from DLEE108.ent.ti.com (dlee108.ent.ti.com [157.170.170.38]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x6PISL3h061764 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Jul 2019 13:28:21 -0500 Received: from DLEE105.ent.ti.com (157.170.170.35) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Thu, 25 Jul 2019 13:28:21 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE105.ent.ti.com (157.170.170.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Thu, 25 Jul 2019 13:28:21 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x6PISL3K025715; Thu, 25 Jul 2019 13:28:21 -0500 From: Dan Murphy To: , CC: , , Dan Murphy Subject: [PATCH v4 1/9] leds: multicolor: Add sysfs interface definition Date: Thu, 25 Jul 2019 13:28:10 -0500 Message-ID: <20190725182818.29556-2-dmurphy@ti.com> X-Mailer: git-send-email 2.22.0.214.g8dca754b1e In-Reply-To: <20190725182818.29556-1-dmurphy@ti.com> References: <20190725182818.29556-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a documentation of LED Multicolor LED class specific sysfs attributes. Signed-off-by: Dan Murphy --- .../ABI/testing/sysfs-class-led-multicolor | 67 +++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-led-multicolor -- 2.22.0.214.g8dca754b1e diff --git a/Documentation/ABI/testing/sysfs-class-led-multicolor b/Documentation/ABI/testing/sysfs-class-led-multicolor new file mode 100644 index 000000000000..59839f0eae76 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led-multicolor @@ -0,0 +1,67 @@ +What: /sys/class/leds//brightness +Date: Sept 2019 +KernelVersion: TBD +Contact: Dan Murphy +Description: read/write + The multicolor class will redirect the device drivers call back + function for brightness control to the multicolor class + brightness control function. + + Writing to this file will update all LEDs within the group to a + calculated percentage of what each color LED in the group is set + to. Please refer to the leds-class-multicolor.txt in the + Documentation directory for a complete description. + + The value of the color is from 0 to + /sys/class/leds//max_brightness. + +What: /sys/class/leds//colors/color_mix +Date: Sept 2019 +KernelVersion: TBD +Contact: Dan Murphy +Description: read/write + The color_mix file allows writing all registered multicolor LEDs + virtually at the same time. The value(s) written to this file + contain the intensity values for each multicolor LED within + the colors directory. The color indexes are reported in the + color_id file as defined in this document. + Please refer to the leds-class-multicolor.txt in the + Documentation directory for a complete description. + +What: /sys/class/leds//colors//color_id +Date: Sept 2019 +KernelVersion: TBD +Contact: Dan Murphy +Description: read only + This file when read will return the index of the color in the + color_mix. + Please refer to the leds-class-multicolor.txt in the + Documentation directory for a complete description. + +What: /sys/class/leds//colors//intensity +Date: Sept 2019 +KernelVersion: TBD +Contact: Dan Murphy +Description: read/write + The led_color directory is dynamically created based on the + colors defined by the registrar of the class. + The led_color can be but not limited to red, green, blue, + white, amber, yellow and violet. Drivers can also declare a + LED color for presentation. There is one directory per color + presented. The brightness file is created under each + led_color directory and controls the individual LED color + setting. + + The value of the color is from 0 to + /sys/class/leds//colors//max_intensity. + +What: /sys/class/leds//colors//max_intensity +Date: Sept 2019 +KernelVersion: TBD +Contact: Dan Murphy +Description: read only + Maximum intensity level for the LED color, default is + 255 (LED_FULL). + + If the LED does not support different intensity levels, this + should be 1. From patchwork Thu Jul 25 18:28:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 169741 Delivered-To: patch@linaro.org Received: by 2002:ac9:2daa:0:0:0:0:0 with SMTP id g42csp4402755oce; Thu, 25 Jul 2019 11:28:32 -0700 (PDT) X-Google-Smtp-Source: APXvYqx8PwGFBSgg/dgc2kLngb+oa9Z6GSor2mp5eUqiPpFYzTAEBOWNiYGC4D5CIwTwqkkNv/4A X-Received: by 2002:a17:902:6b0c:: with SMTP id o12mr89490138plk.113.1564079312236; Thu, 25 Jul 2019 11:28:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564079312; cv=none; d=google.com; s=arc-20160816; b=lBQHo2NGzP2/ecISmDkTI4SJ21pJ/X3QZi61c24Ifu8JCb4xWE8hYUn03Q/KbSCUcl n2l13ptT3mosXRsUtPWhuTcwDwcHoZGmCQb16SBLuTxFd9syW2oH+ALypk1ZsWhMFoJa HJJ2R0BBBN7HfjOlctHbhYGKBZI3pGv0PZkRS59lNjTLMgnCigKQsB9eZbEhxKeVM+MY Ox1trMHaDPB8x5TAGM041WecENiis5K0nEWhzGCyV5ax8a4zDqR1ui5J4R0jEkZNZuox iyTqEeXohvVUhupvY+6wrzOY/X5magBO6PdcdHo1xnj5F5eQApPB/R4d021TMlzmFFnw 1xqg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=FmX84wdoIvKOF4QfyScCM6+x89vt6CsCWXDGcqUhLqw=; b=dBdWP8fWMbl4UuiE+XJX46mgvkmlt+PScSERRq8P95DowdtZWFk9A/+W0LGT2dKW46 kcoapb0mztfqvLdAsjhQlNE7RWftLBXJ19YhbSntHHcbxLQu5RWmnvo3Hwv++M0+bw4d AbhZbk5WH3AQ3WyJFODA13lgQwDIQ7eb8TEoGqgRtlxxBTr//tHI3eFBPU2KJtWjn58y PB/ErhyAjhO68CBm8wCEVTTfuqEAimQiWiwEHa6UYPBMo5DJQpgZUk3feP02lyddxH5R P5Wjat4iD69hSKx/rpO/W72uMloC0Wi3o+VigkkVIIFaxhH1I+LiNl2nZSBqSw96AWNG HYZQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=sxRNV2+r; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v1si15186819plb.381.2019.07.25.11.28.31; Thu, 25 Jul 2019 11:28:32 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=sxRNV2+r; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726352AbfGYS2a (ORCPT + 29 others); Thu, 25 Jul 2019 14:28:30 -0400 Received: from fllv0016.ext.ti.com ([198.47.19.142]:58578 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726203AbfGYS20 (ORCPT ); Thu, 25 Jul 2019 14:28:26 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id x6PISM8o061902; Thu, 25 Jul 2019 13:28:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1564079302; bh=FmX84wdoIvKOF4QfyScCM6+x89vt6CsCWXDGcqUhLqw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=sxRNV2+rYEJpDSWo1iRjLVo/9cSmeDc0kPYGWXFky3pWC4av1zXeL32/8fogvgcjR cZPvpygHSmlfahwLuiudfot0dTmvrau5p50xebA4Q6F/lw3YUnaQKGaFBFHpZYwGdB hbU1hiNQ3u64WcZ9pwMsVTDbQpyt+GU0yXrfPPlE= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x6PISMpq061783 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Jul 2019 13:28:22 -0500 Received: from DLEE104.ent.ti.com (157.170.170.34) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Thu, 25 Jul 2019 13:28:22 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Thu, 25 Jul 2019 13:28:22 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id x6PISMge066175; Thu, 25 Jul 2019 13:28:22 -0500 From: Dan Murphy To: , CC: , , Dan Murphy Subject: [PATCH v4 3/9] dt: bindings: Add multicolor class dt bindings documention Date: Thu, 25 Jul 2019 13:28:12 -0500 Message-ID: <20190725182818.29556-4-dmurphy@ti.com> X-Mailer: git-send-email 2.22.0.214.g8dca754b1e In-Reply-To: <20190725182818.29556-1-dmurphy@ti.com> References: <20190725182818.29556-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add DT bindings for the LEDs multicolor class framework. Signed-off-by: Dan Murphy --- .../bindings/leds/leds-class-multicolor.txt | 96 +++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-class-multicolor.txt -- 2.22.0.214.g8dca754b1e diff --git a/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt b/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt new file mode 100644 index 000000000000..5d36327b18fc --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt @@ -0,0 +1,96 @@ +* Multicolor LED properties + +Multicolor LEDs can consist of a RGB, RGBW or a RGBA LED clusters. These devices +can be grouped together and also provide a modeling mechanism so that the +cluster LEDs can vary in hue and intensity to produce a wide range of colors. + +The nodes and properties defined in this document are unique to the multicolor +LED class. Common LED nodes and properties are inherited from the common.txt +within this documentation directory. + +Required LED Child properties: + - color : For multicolor LED support this property should be defined as + LED_COLOR_ID_MULTI and further definition can be found in + include/linux/leds/common.h. + +led-controller@30 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,lp5024"; + reg = <0x29>; + + multi-led@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + color = ; + function = LED_FUNCTION_; + + + led@3 { + reg = <3>; + color = ; + }; + + led@4 { + reg = <4>; + color = ; + }; + + led@5 { + reg = <5>; + color = ; + }; + }; + + multi-led@2 { + #address-cells = <1>; + #size-cells = <0>; + color = ; + function = LED_FUNCTION_ACTIVITY; + reg = <2>; + ti,led-bank = <2 3 5>; + + led@6 { + reg = <0x6>; + color = ; + led-sources = <6 9 15>; + }; + + led@7 { + reg = <0x7>; + color = ; + led-sources = <7 10 16>; + }; + + led@8 { + reg = <0x8>; + color = ; + led-sources = <8 11 17>; + }; + }; + + multi-led@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + color = ; + function = LED_FUNCTION_ACTIVITY; + + led@12 { + reg = <12>; + color = ; + }; + + led@13 { + reg = <13>; + color = ; + }; + + led@14 { + reg = <14>; + color = ; + }; + }; + +}; From patchwork Thu Jul 25 18:28:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 169748 Delivered-To: patch@linaro.org Received: by 2002:ac9:2daa:0:0:0:0:0 with SMTP id g42csp4403208oce; Thu, 25 Jul 2019 11:29:03 -0700 (PDT) X-Google-Smtp-Source: APXvYqwoT7ebW8OOAHVWzJqfselwOC/iVnwic7c9HdahpzkJhF9LrVHKYGaCWrtVY3AfwCssXdBG X-Received: by 2002:aa7:8dd2:: with SMTP id j18mr17769149pfr.88.1564079343505; Thu, 25 Jul 2019 11:29:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564079343; cv=none; d=google.com; s=arc-20160816; b=dnCLCM111FpsmH760Ms5y2X+DbSY4ANXi1TjJfkaALunCwFx/ZCLh/oHuEfchS5T60 aAa04p1YnROlQ87V53plkXuG0JNVzk+jrZ3tjAf9r5I3jM0KR7uAcKnVxcaF+9bj3XMf 3rcmiID9XOJuYb2IlhxZtDkgAdVDMPcvxnQCeem6RHGopj+5rh5Q0EXdEmWyOKTidmIn o83yiDIxW7f5bHxbqRmV+Ycim0/ZrR2OXj2qLjXvh2POPdPpRY1z1JZGkcEkdKzeQ4kl ITnEKuzwcXqhOMuDWeuX6guiMTyUjCIubHLtunZAx6/6e9nV14v/zFdLHqe6VSp5xovI 9yRQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=zV3cVdmjhCBXzQdA/5xCOaiT1n6XKbwdMaP1jdy4goo=; b=HBNdMCRWVYabfVpiHdRS0UdeoAyflFwkDagt80V/2OO+NrLzrJBwiU++JUJJ+UiMI1 RHWz4ofTEWD6ipMoE9L2kHYAqKz+17kxmc9rnbR9iAIt+pZDcX15EG711HmYaSb5r/Gq w5Jfp8rgB88RcVG0/fOepd5Jlq4iu3Bp0nsu0hv7r/qQwX4UrRk2OE9OCCo+WEsxSf2m muPASRj6IIeNYedmqdlR/kY1U8wFl4asgxxQfxqiDWPnBsgst8c6mz4i0AfE7TJSABKY AF0XUG2rP/oVNKOzFpVXpeH0jcEZwoS6bjQPGXEfPVf0ld5ugHGu9UZlsSVkfL9K8OuM XnHQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=N2jS+eR0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id s37si16674927pjb.16.2019.07.25.11.29.03; Thu, 25 Jul 2019 11:29:03 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=N2jS+eR0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726561AbfGYS3B (ORCPT + 29 others); Thu, 25 Jul 2019 14:29:01 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:33762 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726193AbfGYS2Z (ORCPT ); Thu, 25 Jul 2019 14:28:25 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id x6PISNGn047425; Thu, 25 Jul 2019 13:28:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1564079303; bh=zV3cVdmjhCBXzQdA/5xCOaiT1n6XKbwdMaP1jdy4goo=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=N2jS+eR0LheoJ0ZgGfiZgPB+mqxHJklTYir9UZeBSYazVrs+zGE9+DjzpAwec0VjJ bzUpBkhOiSQN532SrwQrJdmWIyywRtTYGQW9e8ZJFlPL2H6lZ20sQ3j2JVL+vRx7KW 4vlCrsCFVv1GYVnU6QQ+QSeiVqhxgSuo2vNJ2oEM= Received: from DLEE108.ent.ti.com (dlee108.ent.ti.com [157.170.170.38]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x6PISMT1036930 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Jul 2019 13:28:22 -0500 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Thu, 25 Jul 2019 13:28:22 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Thu, 25 Jul 2019 13:28:22 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id x6PISMRU006554; Thu, 25 Jul 2019 13:28:22 -0500 From: Dan Murphy To: , CC: , , Dan Murphy Subject: [PATCH v4 4/9] dt-bindings: leds: Add multicolor ID to the color ID list Date: Thu, 25 Jul 2019 13:28:13 -0500 Message-ID: <20190725182818.29556-5-dmurphy@ti.com> X-Mailer: git-send-email 2.22.0.214.g8dca754b1e In-Reply-To: <20190725182818.29556-1-dmurphy@ti.com> References: <20190725182818.29556-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a new color ID that is declared as MULTICOLOR as with the multicolor framework declaring a definitive color is not accurate as the node can contain multiple colors. Signed-off-by: Dan Murphy --- include/dt-bindings/leds/common.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.22.0.214.g8dca754b1e diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h index 9e1256a7c1bf..7006d15f71e8 100644 --- a/include/dt-bindings/leds/common.h +++ b/include/dt-bindings/leds/common.h @@ -29,7 +29,8 @@ #define LED_COLOR_ID_VIOLET 5 #define LED_COLOR_ID_YELLOW 6 #define LED_COLOR_ID_IR 7 -#define LED_COLOR_ID_MAX 8 +#define LED_COLOR_ID_MULTI 8 +#define LED_COLOR_ID_MAX 9 /* Standard LED functions */ #define LED_FUNCTION_ACTIVITY "activity" From patchwork Thu Jul 25 18:28:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 169744 Delivered-To: patch@linaro.org Received: by 2002:ac9:2daa:0:0:0:0:0 with SMTP id g42csp4402985oce; Thu, 25 Jul 2019 11:28:47 -0700 (PDT) X-Google-Smtp-Source: APXvYqwxIfPWBCZzs15iVOeiGmeqkrcs+g1YmWpuTW8aUsP6myITsofpdebcLP9SuwtJZjzbmoLo X-Received: by 2002:a65:4841:: with SMTP id i1mr87103645pgs.316.1564079327432; Thu, 25 Jul 2019 11:28:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564079327; cv=none; d=google.com; s=arc-20160816; b=w+SIv/8AdOrnjg0KylwNkFzY9xfkZyRg82K839OciYqj0xK/bULFF7beb/7Z9b8YI0 Dtt+0kj3zqRWA5vz8BwjY++N17ehNxSuZ6j1nUrtpPQ3kNFUDN8OQvDqdKLnJDndy2Au EuTbPP/g3Nhpak71Ig7cWzhmGu080u+bbOfFNUbGOz4t+gBd9OQE5yVJhwoy1U8Iig6w YsnbKyKIsC8M73vNR9KaHuKGO62tofTZPvm03J6w3V4dhcdLWHs1lpmLCiMofgUkpoNR AbFEAo7E1ozW4niSDGGMREn79e1XB2BQlyebxqc7rCndIpBCSANa1qo4i45rPRkZi5ij Yycw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=pFYehr+r5uWvcdr2MRCzPjFcyfE7pD3bY6WYsEB3YEw=; b=uQ2KtWrUefRPvu9Zm0mHkWQ8LYLMibhz3ZvG0bpqDbfBGhiob0hSXwaGC+uBbpfXD/ iEXWGysTFNA+ymujIstRVJ6fyot5K957Vw6kRh0+GS2hiyDs88Jgu5KNG6vynYFylon4 gyu1d9NVKQlAxn67pGOt0g5VE1WEfA0yaCRcTTysSwfvdokz4eR7wvg65CPSGV0NP54A nx5BRtnHj61xhZB9A6Vp+bF6G1D9SxKxLO580oNSXHQESwrx9m2jFTDWQsTPIPT0gEku ZmPFUGymyqfRSfZYOU1GZEsvEo41gWv5tznLZr+yU1lbPmUBxTCNUqj0JjZA9uiyXwo8 /xCQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=TAOZrMR7; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o21si15882034pll.169.2019.07.25.11.28.47; Thu, 25 Jul 2019 11:28:47 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=TAOZrMR7; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726307AbfGYS23 (ORCPT + 29 others); Thu, 25 Jul 2019 14:28:29 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:59206 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726248AbfGYS20 (ORCPT ); Thu, 25 Jul 2019 14:28:26 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id x6PISNqs011802; Thu, 25 Jul 2019 13:28:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1564079303; bh=pFYehr+r5uWvcdr2MRCzPjFcyfE7pD3bY6WYsEB3YEw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=TAOZrMR7kHT9S84THPf1fqX1GEqxCSM46xz4MmUPUqEUBubT4fLoCdGJj+yh0SWN8 81A2WAWlwcbD1f3QIQOCcnh5rCTwcrUBJgH1nu8+bYfGkjHb1X+lnfq+xPOZ8LOM6j 7zfiG7I7n90083ub1nNxB7ZTtCQknplkOcVgcYUE= Received: from DFLE114.ent.ti.com (dfle114.ent.ti.com [10.64.6.35]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x6PISNl6036935 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Jul 2019 13:28:23 -0500 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Thu, 25 Jul 2019 13:28:23 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Thu, 25 Jul 2019 13:28:23 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id x6PISMs5066191; Thu, 25 Jul 2019 13:28:22 -0500 From: Dan Murphy To: , CC: , , Dan Murphy Subject: [PATCH v4 5/9] leds: Add multicolor ID to the color ID list Date: Thu, 25 Jul 2019 13:28:14 -0500 Message-ID: <20190725182818.29556-6-dmurphy@ti.com> X-Mailer: git-send-email 2.22.0.214.g8dca754b1e In-Reply-To: <20190725182818.29556-1-dmurphy@ti.com> References: <20190725182818.29556-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a new color ID that is declared as MULTICOLOR as with the multicolor framework declaring a definitive color is not accurate as the node can contain multiple colors. Signed-off-by: Dan Murphy --- drivers/leds/led-core.c | 1 + 1 file changed, 1 insertion(+) -- 2.22.0.214.g8dca754b1e diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c index f0c1c403f678..52422b1ee1f3 100644 --- a/drivers/leds/led-core.c +++ b/drivers/leds/led-core.c @@ -34,6 +34,7 @@ const char * const led_colors[LED_COLOR_ID_MAX] = { [LED_COLOR_ID_VIOLET] = "violet", [LED_COLOR_ID_YELLOW] = "yellow", [LED_COLOR_ID_IR] = "ir", + [LED_COLOR_ID_MULTI] = "multicolor", }; EXPORT_SYMBOL_GPL(led_colors); From patchwork Thu Jul 25 18:28:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 169745 Delivered-To: patch@linaro.org Received: by 2002:ac9:2daa:0:0:0:0:0 with SMTP id g42csp4403057oce; Thu, 25 Jul 2019 11:28:51 -0700 (PDT) X-Google-Smtp-Source: APXvYqy2uqL1efsFgwVqvuruUFhE5d/OjANykGZNb+O90VsNtCFg5DFznON3lPU/Dqr3TAi0simr X-Received: by 2002:a65:684c:: with SMTP id q12mr44699608pgt.405.1564079331727; Thu, 25 Jul 2019 11:28:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564079331; cv=none; d=google.com; s=arc-20160816; b=JNWdQxK+e4rVFwHh0dkvZSFlsuJMtOUfOV3RoK7ivy3uh9qbhXTqCKazEal6BQRWR0 Y/3Ac45bbstZtIdixLP4zSB4zt8mZOchR5jV8ONpZVfeoRaM8A1264mZ55wQSiWUBuXt 4+ndgUrIBtGrxMsbO92nwQ/OnkkMqxyUlYlrjTJoWd38z9R2xDczX+CPJDyFw54A3Agy G99/UHbcz3Nk+V0W5mS4lp2O0BzUs3TZ9+5pXlYbEikJjas9HSJ6sb8pMIjEksh8LGqH lH+2tcgGOUZWUbPjKwcoMeTi18JMrwOyBZNZCGJl+hvXgyc7Q0DRjYoE7FkUzCbPlA7t HBrA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=7sgS3m1cyWR+3xDoqks5t8kPmu8zaNgGlxJv40VwGGQ=; b=FrM+/RqqD8U3ZeckOP9DDut1mY7CarSOzaEHDJfHCbEjkOik2v9epxywH1dBZOToWi yE15jtiJ7c6SJ9hCRguc+QXcDwGL5oXvYnvpOhcmtqnYtkSGx3iQ03CKOX9gaupJQmQe 1eWiIIdR7naXFt0NnLAaT3sFxfUs9StHDSCED6+ka7YmwKc8CigOuFYp3ccC4+kib2JL U6EVfDKxpYPEkzkwC+kNpJrYeU4jaNGXJAgccbLy90LyHQ6Mrm17lKT9sBVYLzXWTZ2M BsMxt8h5xQoFrrDRsmz/PNbNaVQ/4QsFRBAmJImOzeBL/0km78FOZh97g9aldkldvT2J uc2Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=sVNfZquG; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o8si15973907pgc.179.2019.07.25.11.28.51; Thu, 25 Jul 2019 11:28:51 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=sVNfZquG; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726473AbfGYS2u (ORCPT + 29 others); Thu, 25 Jul 2019 14:28:50 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:55940 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726252AbfGYS21 (ORCPT ); Thu, 25 Jul 2019 14:28:27 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id x6PISNcM018041; Thu, 25 Jul 2019 13:28:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1564079303; bh=7sgS3m1cyWR+3xDoqks5t8kPmu8zaNgGlxJv40VwGGQ=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=sVNfZquG7j0tFii/0yOLYRJjZ/f8fX7QEY8NJoOzQj5qY2Cx7F616vEFFCMxfQnNS O0ATDMXTAPmPEryyk6pwR8EetlaZdnE79qSE1qYOdJUf2pYT6LbKeij87YzVQP5poX PQufEuFLG/ZZL+wRLq5d1XGlQwLDs6hrhFlajHO0= Received: from DLEE114.ent.ti.com (dlee114.ent.ti.com [157.170.170.25]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x6PISNUl036945 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Jul 2019 13:28:23 -0500 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Thu, 25 Jul 2019 13:28:23 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Thu, 25 Jul 2019 13:28:23 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x6PISNlZ025738; Thu, 25 Jul 2019 13:28:23 -0500 From: Dan Murphy To: , CC: , , Dan Murphy Subject: [PATCH v4 6/9] leds: multicolor: Introduce a multicolor class definition Date: Thu, 25 Jul 2019 13:28:15 -0500 Message-ID: <20190725182818.29556-7-dmurphy@ti.com> X-Mailer: git-send-email 2.22.0.214.g8dca754b1e In-Reply-To: <20190725182818.29556-1-dmurphy@ti.com> References: <20190725182818.29556-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce a multicolor class that groups colored LEDs within a LED node. The framework allows for dynamically setting individual LEDs or setting brightness levels of LEDs and updating them virtually simultaneously. Signed-off-by: Dan Murphy --- drivers/leds/Kconfig | 10 + drivers/leds/Makefile | 1 + drivers/leds/led-class-multicolor.c | 402 +++++++++++++++++++++++++++ include/linux/led-class-multicolor.h | 96 +++++++ 4 files changed, 509 insertions(+) create mode 100644 drivers/leds/led-class-multicolor.c create mode 100644 include/linux/led-class-multicolor.h -- 2.22.0.214.g8dca754b1e diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index f7a3dd7ecf3d..7f780d5b8490 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -30,6 +30,16 @@ config LEDS_CLASS_FLASH for the flash related features of a LED device. It can be built as a module. +config LEDS_CLASS_MULTI_COLOR + tristate "LED Mulit Color LED Class Support" + depends on LEDS_CLASS + help + This option enables the multicolor LED sysfs class in /sys/class/leds. + It wraps LED Class and adds multicolor LED specific sysfs attributes + and kernel internal API to it. You'll need this to provide support + for multicolor LEDs that are grouped together. This class is not + intended for single color LEDs. It can be built as a module. + config LEDS_BRIGHTNESS_HW_CHANGED bool "LED Class brightness_hw_changed attribute support" depends on LEDS_CLASS diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 41fb073a39c1..897b810257dd 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_NEW_LEDS) += led-core.o obj-$(CONFIG_LEDS_CLASS) += led-class.o obj-$(CONFIG_LEDS_CLASS_FLASH) += led-class-flash.o +obj-$(CONFIG_LEDS_CLASS_MULTI_COLOR) += led-class-multicolor.o obj-$(CONFIG_LEDS_TRIGGERS) += led-triggers.o # LED Platform Drivers diff --git a/drivers/leds/led-class-multicolor.c b/drivers/leds/led-class-multicolor.c new file mode 100644 index 000000000000..123443e6d3eb --- /dev/null +++ b/drivers/leds/led-class-multicolor.c @@ -0,0 +1,402 @@ +// SPDX-License-Identifier: GPL-2.0 +// LED Multi Color class interface +// Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/ + +#include +#include +#include +#include +#include +#include + +#include "leds.h" + +struct led_classdev_mc_priv { + struct led_classdev_mc *mcled_cdev; + + struct device_attribute max_intensity_attr; + struct device_attribute intensity_attr; + struct device_attribute color_index_attr; + + enum led_brightness max_intensity; + enum led_brightness intensity; + enum led_brightness new_intensity; + + struct list_head list; + + int color_id; + int color_index; +}; +static int calculate_brightness(int brightness, int intensity, int max_intensity) +{ + if (brightness && intensity && max_intensity) + return brightness * intensity / max_intensity; + + return LED_OFF; +} + +void set_cluster_brightness(struct led_classdev_mc *mcled_cdev, + enum led_brightness brightness, int adj_value[]) +{ + struct led_classdev_mc_data *data = mcled_cdev->data; + struct led_classdev_mc_priv *priv; + int i = 0; + + list_for_each_entry(priv, &data->color_list, list) { + adj_value[i] = calculate_brightness(brightness, priv->intensity, + priv->max_intensity); + i++; + } + + data->cluster_brightness = brightness; +} + +void get_cluster_brightness(struct led_classdev_mc *mcled_cdev, + int brightness_val[]) +{ + struct led_classdev_mc_data *data = mcled_cdev->data; + struct led_classdev_mc_priv *priv; + int i = 0; + + list_for_each_entry(priv, &data->color_list, list) { + brightness_val[i] = priv->intensity; + i++; + } +} + +static ssize_t color_index_show(struct device *dev, + struct device_attribute *color_index_attr, + char *buf) +{ + struct led_classdev_mc_priv *priv = container_of(color_index_attr, + struct led_classdev_mc_priv, + color_index_attr); + + return sprintf(buf, "%d\n", priv->color_id); +} + +static ssize_t color_mix_store(struct device *dev, + struct device_attribute *color_mix_attr, + const char *buf, size_t size) +{ + struct led_classdev_mc_data *data = container_of(color_mix_attr, + struct led_classdev_mc_data, + color_mix_attr); + struct led_classdev_mc *mcled_cdev = data->mcled_cdev; + const struct led_multicolor_ops *ops = mcled_cdev->ops; + struct led_classdev_mc_priv *priv; + unsigned int value[LED_COLOR_ID_MAX]; + int adj_brightness; + int nrchars, offset = 0; + unsigned int i; + int ret; + + for (i = 0; i < mcled_cdev->num_leds; i++) { + ret = sscanf(buf + offset, "%i%n", &value[i], &nrchars); + if (ret != 1) + break; + + offset += nrchars; + } + + if (i != mcled_cdev->num_leds) { + for (; i < LED_COLOR_ID_MAX; i++) + value[i] = 0; + } + + list_for_each_entry(priv, &data->color_list, list) { + if (data->cluster_brightness) { + adj_brightness = calculate_brightness(data->cluster_brightness, + value[priv->color_index], + priv->max_intensity); + ret = ops->set_color_brightness(priv->mcled_cdev, + priv->color_id, + adj_brightness); + if (ret < 0) + goto done; + } + + priv->intensity = value[priv->color_index]; + } + +done: + return size; +} + +static ssize_t intensity_store(struct device *dev, + struct device_attribute *intensity_attr, + const char *buf, size_t size) +{ + struct led_classdev_mc_priv *priv = container_of(intensity_attr, + struct led_classdev_mc_priv, + intensity_attr); + struct led_classdev_mc_data *data = priv->mcled_cdev->data; + struct led_classdev *led_cdev = priv->mcled_cdev->led_cdev; + struct led_multicolor_ops *ops = priv->mcled_cdev->ops; + unsigned int adj_value; + unsigned long value; + ssize_t ret; + + mutex_lock(&led_cdev->led_access); + + ret = kstrtoul(buf, 10, &value); + if (ret) + goto unlock; + + if (value > priv->max_intensity) { + ret = -EINVAL; + goto unlock; + } + + priv->new_intensity = value; + + if (data->cluster_brightness) { + adj_value = calculate_brightness(data->cluster_brightness, + priv->new_intensity, + priv->max_intensity); + ret = ops->set_color_brightness(priv->mcled_cdev, + priv->color_id, adj_value); + if (ret < 0) { + priv->new_intensity = priv->intensity; + goto unlock; + } + } + + priv->intensity = priv->new_intensity; + ret = size; + +unlock: + mutex_unlock(&led_cdev->led_access); + return ret; +} + +static ssize_t intensity_show(struct device *dev, + struct device_attribute *intensity_attr, + char *buf) +{ + struct led_classdev_mc_priv *priv = container_of(intensity_attr, + struct led_classdev_mc_priv, + intensity_attr); + const struct led_multicolor_ops *ops = priv->mcled_cdev->ops; + int value = 0; + + if (ops->get_color_brightness) { + value = ops->get_color_brightness(priv->mcled_cdev, + priv->color_id); + priv->intensity = value; + } else { + value = priv->intensity; + } + + return sprintf(buf, "%d\n", value); +} + +static ssize_t max_intensity_show(struct device *dev, + struct device_attribute *max_intensity_attr, + char *buf) +{ + struct led_classdev_mc_priv *priv = container_of(max_intensity_attr, + struct led_classdev_mc_priv, + max_intensity_attr); + + return sprintf(buf, "%d\n", priv->max_intensity); +} + +static int led_multicolor_init_color(struct led_classdev_mc_data *data, + struct led_classdev_mc *mcled_cdev, + int color_id, int color_index) +{ + struct led_classdev *led_cdev = mcled_cdev->led_cdev; + struct led_classdev_mc_priv *mc_priv; + int ret; + + mc_priv = devm_kzalloc(led_cdev->dev, sizeof(*mc_priv), GFP_KERNEL); + if (!mc_priv) + return -ENOMEM; + + mc_priv->color_id = color_id; + mc_priv->mcled_cdev = mcled_cdev; + + data->led_kobj = kobject_create_and_add(led_colors[color_id], + data->color_kobj); + if (!data->led_kobj) + return -EINVAL; + + sysfs_attr_init(&mc_priv->intensity_attr.attr); + mc_priv->intensity_attr.attr.name = "intensity"; + mc_priv->intensity_attr.attr.mode = S_IRUGO | S_IWUGO; + mc_priv->intensity_attr.store = intensity_store; + mc_priv->intensity_attr.show = intensity_show; + ret = sysfs_create_file(data->led_kobj, + &mc_priv->intensity_attr.attr); + if (ret) + goto err_out; + + sysfs_attr_init(&mc_priv->max_intensity_attr.attr); + mc_priv->max_intensity_attr.attr.name = "max_intensity"; + mc_priv->max_intensity_attr.attr.mode = S_IRUGO; + mc_priv->max_intensity_attr.show = max_intensity_show; + ret = sysfs_create_file(data->led_kobj, + &mc_priv->max_intensity_attr.attr); + if (ret) + goto err_out; + + sysfs_attr_init(&mc_priv->color_index_attr.attr); + mc_priv->color_index_attr.attr.name = "color_id"; + mc_priv->color_index_attr.attr.mode = S_IRUGO; + mc_priv->color_index_attr.show = color_index_show; + ret = sysfs_create_file(data->led_kobj, + &mc_priv->color_index_attr.attr); + if (ret) + goto err_out; + + mc_priv->max_intensity = LED_FULL; + mc_priv->color_index = color_index; + list_add_tail(&mc_priv->list, &data->color_list); + +err_out: + return ret; +} + +static int led_multicolor_init_color_dir(struct led_classdev_mc_data *data, + struct led_classdev_mc *mcled_cdev) +{ + struct led_classdev *led_cdev = mcled_cdev->led_cdev; + u32 color_id; + int ret; + int i, j = 0; + + data->color_kobj = kobject_create_and_add("colors", + &led_cdev->dev->kobj); + if (!data->color_kobj) + return -EINVAL; + + data->mcled_cdev = mcled_cdev; + + for (i = 0; i < LED_COLOR_ID_MAX; i++) { + color_id = (mcled_cdev->available_colors & (1 << i)); + if (color_id) { + ret = led_multicolor_init_color(data, mcled_cdev, i, j); + if (ret) + break; + + j++; + } + } + + sysfs_attr_init(&data->color_mix_attr.attr); + data->color_mix_attr.attr.name = "color_mix"; + data->color_mix_attr.attr.mode = S_IRUGO | S_IWUGO; + data->color_mix_attr.store = color_mix_store; + ret = sysfs_create_file(data->color_kobj, + &data->color_mix_attr.attr); + + return ret; +} + +int led_classdev_multicolor_register_ext(struct device *parent, + struct led_classdev_mc *mcled_cdev, + struct led_init_data *init_data) +{ + struct led_classdev *led_cdev; + struct led_multicolor_ops *ops; + struct led_classdev_mc_data *data; + int ret; + + if (!mcled_cdev) + return -EINVAL; + + ops = mcled_cdev->ops; + if (!ops || !ops->set_color_brightness) + return -EINVAL; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + mcled_cdev->data = data; + led_cdev = mcled_cdev->led_cdev; + INIT_LIST_HEAD(&data->color_list); + + /* Register led class device */ + ret = led_classdev_register_ext(parent, led_cdev, init_data); + if (ret) + return ret; + + return led_multicolor_init_color_dir(data, mcled_cdev); +} +EXPORT_SYMBOL_GPL(led_classdev_multicolor_register_ext); + +void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) +{ + if (!mcled_cdev) + return; + + led_classdev_unregister(mcled_cdev->led_cdev); +} +EXPORT_SYMBOL_GPL(led_classdev_multicolor_unregister); + +static void devm_led_classdev_multicolor_release(struct device *dev, void *res) +{ + led_classdev_multicolor_unregister(*(struct led_classdev_mc **)res); +} + +/** + * devm_of_led_classdev_register - resource managed led_classdev_register() + * + * @parent: parent of LED device + * @led_cdev: the led_classdev structure for this device. + */ +int devm_led_classdev_multicolor_register(struct device *parent, + struct led_classdev_mc *mcled_cdev) +{ + struct led_classdev_mc **dr; + int ret; + + dr = devres_alloc(devm_led_classdev_multicolor_release, + sizeof(*dr), GFP_KERNEL); + if (!dr) + return -ENOMEM; + + ret = led_classdev_multicolor_register(parent, mcled_cdev); + if (ret) { + devres_free(dr); + return ret; + } + + *dr = mcled_cdev; + devres_add(parent, dr); + + return 0; +} +EXPORT_SYMBOL_GPL(devm_led_classdev_multicolor_register); + +static int devm_led_classdev_multicolor_match(struct device *dev, + void *res, void *data) +{ + struct mcled_cdev **p = res; + + if (WARN_ON(!p || !*p)) + return 0; + + return *p == data; +} + +/** + * devm_led_classdev_multicolor_unregister() - resource managed + * led_classdev_multicolor_unregister() + * @parent: The device to unregister. + * @mcled_cdev: the led_classdev_mc structure for this device. + */ +void devm_led_classdev_multicolor_unregister(struct device *dev, + struct led_classdev_mc *mcled_cdev) +{ + WARN_ON(devres_release(dev, + devm_led_classdev_multicolor_release, + devm_led_classdev_multicolor_match, mcled_cdev)); +} +EXPORT_SYMBOL_GPL(devm_led_classdev_multicolor_unregister); + +MODULE_AUTHOR("Dan Murphy "); +MODULE_DESCRIPTION("Multi Color LED class interface"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/led-class-multicolor.h b/include/linux/led-class-multicolor.h new file mode 100644 index 000000000000..082883606246 --- /dev/null +++ b/include/linux/led-class-multicolor.h @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* LED Multicolor class interface + * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/ + */ + +#ifndef __LINUX_MULTICOLOR_LEDS_H_INCLUDED +#define __LINUX_MULTICOLOR_LEDS_H_INCLUDED + +#include +#include + +struct led_classdev_mc; + +struct led_classdev_mc_data { + struct led_classdev_mc *mcled_cdev; + + struct kobject *color_kobj; + struct kobject *led_kobj; + + struct device_attribute color_mix_attr; + + struct list_head color_list; + + enum led_brightness cluster_brightness; +}; + +struct led_multicolor_ops { + /* Set brightness for a specific color id */ + int (*set_color_brightness)(struct led_classdev_mc *mcled_cdev, + int color_id, int value); + /* Read current color setting */ + int (*get_color_brightness)(struct led_classdev_mc *mcled_cdev, + int color_id); +}; + +struct led_classdev_mc { + /* led class device */ + struct led_classdev *led_cdev; + + /* multicolor led specific ops */ + struct led_multicolor_ops *ops; + + struct led_classdev_mc_data *data; + + u32 available_colors; + int num_leds; +}; + +static inline struct led_classdev_mc *lcdev_to_mccdev( + struct led_classdev *lcdev) +{ + return container_of(lcdev, struct led_classdev_mc, led_cdev); +} + +/** + * led_classdev_multicolor_register_ext - register a new object of led_classdev + * class with support for multicolor LEDs + * @parent: the multicolor LED to register + * @mcled_cdev: the led_classdev_mc structure for this device + * @init_data: the LED class Multi color device initialization data + * + * Returns: 0 on success or negative error value on failure + */ +extern int led_classdev_multicolor_register_ext(struct device *parent, + struct led_classdev_mc *mcled_cdev, + struct led_init_data *init_data); + +#define led_classdev_multicolor_register(parent, mcled_cdev) \ + led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL) + +/** + * led_classdev_multicolor_unregister - unregisters an object of led_classdev + * class with support for multicolor LEDs + * @mcled_cdev: the multicolor LED to unregister + * + * Unregister a previously registered via led_classdev_multicolor_register + * object + */ +extern void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev); + +extern int devm_led_classdev_multicolor_register(struct device *parent, + struct led_classdev_mc *mcled_cdev); + +extern void devm_led_classdev_multicolor_unregister(struct device *parent, + struct led_classdev_mc *mcled_cdev); + +/* Set brightness for the monochrome LED cluster */ +extern void set_cluster_brightness(struct led_classdev_mc *mcled_cdev, + enum led_brightness brightness, + int adj_value[]); + +/* Read current cluster brightness */ +extern void get_cluster_brightness(struct led_classdev_mc *mcled_cdev, + int brightness_val[]); + +#endif /* __LINUX_MULTICOLOR_LEDS_H_INCLUDED */ From patchwork Thu Jul 25 18:28:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 169743 Delivered-To: patch@linaro.org Received: by 2002:ac9:2daa:0:0:0:0:0 with SMTP id g42csp4402905oce; Thu, 25 Jul 2019 11:28:42 -0700 (PDT) X-Google-Smtp-Source: APXvYqySMY/1dWBLPJhyMPfH/2N2/QpdC03LjtIH9bYiRYgPxFEnrfR7gM3nWJ+G+ytWvsgSrDPt X-Received: by 2002:a17:902:12d:: with SMTP id 42mr87613861plb.187.1564079322819; Thu, 25 Jul 2019 11:28:42 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564079322; cv=none; d=google.com; s=arc-20160816; b=wjK91DP/Q7C+B1hHctjKsqLYsaMQz+SO4HOVp6DlCdiV8rAqDrz/xKkt9JVp7J+GhB tvRuNy3cfB6UVUXUmJg3yd9PAnbRkN/1XSpbKObLaYnW4ZKvgHvKhYWTw78S0eeK/mE4 tdW0M8gJy9zdQuoOhYyouCHBXxD0OSAohTVkR5QPenyLeerTmkIGttOM7hvgpC2uL0iP z9yL44nAa/+Ksqs1OqStpBUyBmPmM1g59878jk/gpe3bEU+rAu7NsnN/T3fpHfgvf1IS 915K/yzDUd7PcBvEkaH0RVBrqhocsaV67uKduxELQkojY3/qAYuUviJFoNMan2FbLN90 JNXQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=7rskmsTiAzvQ4NF4+vWKavl0uEPi2s+cxTAi1MuphJk=; b=xTYj9xTnIarReyfqyhrI98tFaZH0RrhVqk0PDM3SilMvi9lHEgaM1kD9xgDpDlK1En KHOK3RQu6N7QlBwOD+cv7XE1qqHF+JN++90bmWjZOp9cvhfL53V1CryTwGndupNeer+c 75BU3Vnozz+Fce0CQ0S2NdEr/wH8jDSSLFzDaF8XupU0wWO3XruKnJcU2ovc4+4Q+eSm RMdHrYYGqC2WuU94AwyoLdd/EPMV6GaDSkKl1C327ODxiKUgfBaT8GOCnzQHRqSBBhFo wOl78j6iexPyBOHQJwjW1mD3+B4eJruuz/kZ/wbKALsjHtVKMJssoy2CSlXMZLTLY9Eq 6w5g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=YYrDBkXL; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id k190si17857817pgd.212.2019.07.25.11.28.42; Thu, 25 Jul 2019 11:28:42 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=YYrDBkXL; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726417AbfGYS2g (ORCPT + 29 others); Thu, 25 Jul 2019 14:28:36 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:55946 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725851AbfGYS22 (ORCPT ); Thu, 25 Jul 2019 14:28:28 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id x6PISO0x018045; Thu, 25 Jul 2019 13:28:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1564079304; bh=7rskmsTiAzvQ4NF4+vWKavl0uEPi2s+cxTAi1MuphJk=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=YYrDBkXLITNei2+m7BIQyEL10VdzxS3MGujZ25+x+90s7MoKYiJpFtaEx3VxocFC8 cLzpFGPCo4S3CfOnL1Ghwunh78h4LsThsMZ0akTRm554Qofzq9jSeewWAtFiUpfJiN 8qhoy7BzS2obyqAQMoYi5uYRYAd4sHTYaB1bnD3U= Received: from DFLE111.ent.ti.com (dfle111.ent.ti.com [10.64.6.32]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x6PISNV2123632 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Jul 2019 13:28:23 -0500 Received: from DFLE113.ent.ti.com (10.64.6.34) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Thu, 25 Jul 2019 13:28:23 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Thu, 25 Jul 2019 13:28:23 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id x6PISNEP006569; Thu, 25 Jul 2019 13:28:23 -0500 From: Dan Murphy To: , CC: , , Dan Murphy Subject: [PATCH v4 7/9] dt: bindings: lp50xx: Introduce the lp50xx family of RGB drivers Date: Thu, 25 Jul 2019 13:28:16 -0500 Message-ID: <20190725182818.29556-8-dmurphy@ti.com> X-Mailer: git-send-email 2.22.0.214.g8dca754b1e In-Reply-To: <20190725182818.29556-1-dmurphy@ti.com> References: <20190725182818.29556-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce the bindings for the Texas Instruments LP5036, LP5030, LP5024, LP5018, LP5012 and LP5009 RGB LED device driver. The LP5036/30/24/18/12/9 can control RGB LEDs individually or as part of a control bank group. These devices have the ability to adjust the mixing control for the RGB LEDs to obtain different colors independent of the overall brightness of the LED grouping. Datasheet: http://www.ti.com/lit/ds/symlink/lp5012.pdf http://www.ti.com/lit/ds/symlink/lp5024.pdf http://www.ti.com/lit/ds/symlink/lp5036.pdf Signed-off-by: Dan Murphy --- .../devicetree/bindings/leds/leds-lp50xx.txt | 148 ++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-lp50xx.txt -- 2.22.0.214.g8dca754b1e diff --git a/Documentation/devicetree/bindings/leds/leds-lp50xx.txt b/Documentation/devicetree/bindings/leds/leds-lp50xx.txt new file mode 100644 index 000000000000..9d05f43042e0 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-lp50xx.txt @@ -0,0 +1,148 @@ +* Texas Instruments - LP5009/12/18/24/30/36 RGB LED driver + +The LP50XX is multi-channel, I2C RGB LED Drivers that can group RGB LEDs into +a LED group or control them individually. + +The difference in these RGB LED drivers is the number of supported RGB modules. + +Required parent properties: + - compatible: + "ti,lp5009" + "ti,lp5012" + "ti,lp5018" + "ti,lp5024" + "ti,lp5030" + "ti,lp5036" + - reg : I2C slave address + lp5009/12 - 0x28 + lp5018/24 - 0x28 + lp5030/36 - 0x30 + - #address-cells : 1 + - #size-cells : 0 + +Optional parent properties: + - enable-gpios : gpio pin to enable/disable the device. + - vled-supply : LED supply + +Required child properties: + - #address-cells : 1 + - #size-cells : 0 + - reg : This is the LED module number. + - color : see Documentation/devicetree/bindings/leds/common.txt + - function : see Documentation/devicetree/bindings/leds/common.txt + +Required child properties only is LED modules will be banked: + - ti,led-bank : This property denotes the LED module numbers that will + be controlled as a single RGB cluster. Each LED module + number will be controlled by a single LED class instance. + There can only be one instance of the ti,led-bank + property for each device node. + +Required grandchildren properties: + - reg : A single entry denoting the LED module that controls + the RGB cluster. + - color : see Documentation/devicetree/bindings/leds/leds-multicolor.txt + - led-sources : see Documentation/devicetree/bindings/leds/common.txt + +The LED outputs associated with the LED modules are defined in Table 1 of the +corresponding data sheets. + +LP5009 - 2 Total RGB cluster LED outputs 0-1 +LP5012 - 4 Total RGB cluster LED outputs 0-3 +LP5018 - 6 Total RGB cluster LED outputs 0-5 +LP5024 - 8 Total RGB cluster LED outputs 0-7 +LP5030 - 10 Total RGB cluster LED outputs 0-9 +LP5036 - 12 Total RGB cluster LED outputs 0-11 + +Optional child properties: + - label : see Documentation/devicetree/bindings/leds/common.txt + - linux,default-trigger : + see Documentation/devicetree/bindings/leds/common.txt + +Examples: +led-controller@29 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,lp5024"; + reg = <0x29>; + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + vled-supply = <&vmmcsd_fixed>; + + multi-led@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + color = ; + function = LED_FUNCTION_STATUS; + + led@3 { + reg = <3>; + color = ; + }; + + led@4 { + reg = <4>; + color = ; + }; + + led@5 { + reg = <5>; + color = ; + }; + }; + + multi-led@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + color = ; + function = LED_FUNCTION_STANDBY; + ti,led-bank = <2 3 5>; + + led@6 { + reg = <0x6>; + color = ; + led-sources = <6 9 15>; + }; + + led@7 { + reg = <0x7>; + color = ; + led-sources = <7 10 16>; + }; + + led@8 { + reg = <0x8>; + color = ; + led-sources = <8 11 17>; + }; + }; + + multi-led@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + color = ; + function = LED_FUNCTION_ACTIVITY; + + led@12 { + reg = <12>; + color = ; + }; + + led@13 { + reg = <13>; + color = ; + }; + + led@14 { + reg = <14>; + color = ; + }; + }; +}; + +For more product information please see the link below: +http://www.ti.com/lit/ds/symlink/lp5012.pdf +http://www.ti.com/lit/ds/symlink/lp5024.pdf +http://www.ti.com/lit/ds/symlink/lp5036.pdf From patchwork Thu Jul 25 18:28:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 169742 Delivered-To: patch@linaro.org Received: by 2002:ac9:2daa:0:0:0:0:0 with SMTP id g42csp4402786oce; Thu, 25 Jul 2019 11:28:34 -0700 (PDT) X-Google-Smtp-Source: APXvYqzrEhom/Q+XZqkt+77Wy33hd0HIY/eIGrCJ4gl6em+srGfVhgu0/pYHbU0ojd3SCjdEZFM3 X-Received: by 2002:a63:904:: with SMTP id 4mr16221135pgj.19.1564079314384; Thu, 25 Jul 2019 11:28:34 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564079314; cv=none; d=google.com; s=arc-20160816; b=fIWgEb6C0gCrBF+KTyIEencb5pJCDlzLJB8hQvtiu3Ajsx/M1BnXz6ChfrCGIWV/Vm ik9P1+MqXX0dw8Deq6CAzVaTmB3fUd0YlQJB44mcFuZIoBb85FU6qb4wYsKOxJj2+m6T vFzu6/ZrJrhv4iL/OftsW4H2vtdEa4pDMMUL1jMCXT9GpmW0E+R87zZtwOmJvk1WtHf3 xR1dDqLRNVUooknh3owbXoAODVVJGuooNGpdvqTEd9N52i0uQ/Av9AP6mf5exA7n7Nr5 qkwbuclrAPqN9N6NKoWJiYZTluBCRI/eBRBYkZGNiaqqN+LrQ/UKEpn15LdeYt1Lisot PoPQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=b+T0YwN/f7UIqrWQn3Tx9++zg4KMvTCssWVhQQHFcqA=; b=eKdT3KBZE6VimeYvzOzFzZp2h+q6ZM1BVoOTgw4mSTYT2Jxrh09j7IHSyHLOcExF2R XR3D2mK/DIX8jynTxRBkUyL5Xuyp3ZXcMm+Ou4xd8RA7RJMitecTwUEZTyulj6d04W6v xNqvVkvWjuekhjU6p6BGQ0JMwfBk5J1Bq6kMfDjBreT8Z7B/unSjvLhRA7vVFSCeFYZS PY0OMB7pMDw8tetiIDwI+q65ngZ5bryH8bLHHkLH8m9W0RuyBTTC2EFVGb1Tp4rO3VpH UjLArfPIB3aV1dsKRva3epWEeSMclnEWKRvQ87JowNyfj6Ynf3UL2n7pihIHUmIF6wLQ H2fw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b="HXKHx/vo"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v1si15186819plb.381.2019.07.25.11.28.34; Thu, 25 Jul 2019 11:28:34 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b="HXKHx/vo"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726393AbfGYS2c (ORCPT + 29 others); Thu, 25 Jul 2019 14:28:32 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:33766 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726190AbfGYS21 (ORCPT ); Thu, 25 Jul 2019 14:28:27 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id x6PISOuX047438; Thu, 25 Jul 2019 13:28:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1564079304; bh=b+T0YwN/f7UIqrWQn3Tx9++zg4KMvTCssWVhQQHFcqA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=HXKHx/vo/t0YazYdmncmcYYKFQBQx3NdrU30u1pTwcrPdbplzPmR3E8nCaIktebKa uNHy2KFH55l0S7DCwkiBTGxBdgoTtiA5OjoMyhTrilVSmMnzq9KcwhzGFU5b31JBuA 7i2Y7AZ6qIBaIyoOdmMxkhvUXyWRdCa/+D76/GRc= Received: from DFLE108.ent.ti.com (dfle108.ent.ti.com [10.64.6.29]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x6PISOnU036949 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Jul 2019 13:28:24 -0500 Received: from DFLE104.ent.ti.com (10.64.6.25) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Thu, 25 Jul 2019 13:28:24 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Thu, 25 Jul 2019 13:28:24 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id x6PISNlB066205; Thu, 25 Jul 2019 13:28:24 -0500 From: Dan Murphy To: , CC: , , Dan Murphy Subject: [PATCH v4 8/9] leds: lp50xx: Add the LP50XX family of the RGB LED driver Date: Thu, 25 Jul 2019 13:28:17 -0500 Message-ID: <20190725182818.29556-9-dmurphy@ti.com> X-Mailer: git-send-email 2.22.0.214.g8dca754b1e In-Reply-To: <20190725182818.29556-1-dmurphy@ti.com> References: <20190725182818.29556-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce the LP5036/30/24/18 RGB LED driver. The difference in these parts are the number of LED outputs where the: LP5036 can control 36 LEDs LP5030 can control 30 LEDs LP5024 can control 24 LEDs LP5018 can control 18 LEDs The device has the ability to group LED output into control banks so that multiple LED banks can be controlled with the same mixing and brightness. Inversely the LEDs can also be controlled independently. Signed-off-by: Dan Murphy --- drivers/leds/Kconfig | 7 + drivers/leds/Makefile | 1 + drivers/leds/leds-lp50xx.c | 789 +++++++++++++++++++++++++++++++++++++ 3 files changed, 797 insertions(+) create mode 100644 drivers/leds/leds-lp50xx.c -- 2.22.0.214.g8dca754b1e diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 7f780d5b8490..69c037020f6b 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -350,6 +350,13 @@ config LEDS_LP3952 To compile this driver as a module, choose M here: the module will be called leds-lp3952. +config LEDS_LP50XX + tristate "LED Support for TI LP5036/30/24/18 LED driver chip" + depends on LEDS_CLASS && REGMAP_I2C + help + If you say yes here you get support for the Texas Instruments + LP5036, LP5030, LP5024 and LP5018 LED driver. + config LEDS_LP55XX_COMMON tristate "Common Driver for TI/National LP5521/5523/55231/5562/8501" depends on LEDS_LP5521 || LEDS_LP5523 || LEDS_LP5562 || LEDS_LP8501 diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 897b810257dd..438a5499f3ee 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_LEDS_GPIO_REGISTER) += leds-gpio-register.o obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o obj-$(CONFIG_LEDS_LP3944) += leds-lp3944.o obj-$(CONFIG_LEDS_LP3952) += leds-lp3952.o +obj-$(CONFIG_LEDS_LP50XX) += leds-lp50xx.o obj-$(CONFIG_LEDS_LP55XX_COMMON) += leds-lp55xx-common.o obj-$(CONFIG_LEDS_LP5521) += leds-lp5521.o obj-$(CONFIG_LEDS_LP5523) += leds-lp5523.o diff --git a/drivers/leds/leds-lp50xx.c b/drivers/leds/leds-lp50xx.c new file mode 100644 index 000000000000..5a32410e4f34 --- /dev/null +++ b/drivers/leds/leds-lp50xx.c @@ -0,0 +1,789 @@ +// SPDX-License-Identifier: GPL-2.0 +// TI LP50XX LED chip family driver +// Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define LP50XX_DEV_CFG0 0x00 +#define LP50XX_DEV_CFG1 0x01 +#define LP50XX_LED_CFG0 0x02 + +/* LP5009 and LP5012 registers */ +#define LP5012_BNK_BRT 0x03 +#define LP5012_BNKA_CLR 0x04 +#define LP5012_BNKB_CLR 0x05 +#define LP5012_BNKC_CLR 0x06 +#define LP5012_LED0_BRT 0x07 +#define LP5012_LED1_BRT 0x08 +#define LP5012_LED2_BRT 0x09 +#define LP5012_LED3_BRT 0x0a +#define LP5012_OUT0_CLR 0x0b +#define LP5012_OUT1_CLR 0x0c +#define LP5012_OUT2_CLR 0x0d +#define LP5012_OUT3_CLR 0x0e +#define LP5012_OUT4_CLR 0x0f +#define LP5012_OUT5_CLR 0x10 +#define LP5012_OUT6_CLR 0x11 +#define LP5012_OUT7_CLR 0x12 +#define LP5012_OUT8_CLR 0x13 +#define LP5012_OUT9_CLR 0x14 +#define LP5012_OUT10_CLR 0x15 +#define LP5012_OUT11_CLR 0x16 +#define LP5012_RESET 0x17 + +/* LP5018 and LP5024 registers */ +#define LP5024_BNK_BRT 0x03 +#define LP5024_BNKA_CLR 0x04 +#define LP5024_BNKB_CLR 0x05 +#define LP5024_BNKC_CLR 0x06 +#define LP5024_LED0_BRT 0x07 +#define LP5024_LED1_BRT 0x08 +#define LP5024_LED2_BRT 0x09 +#define LP5024_LED3_BRT 0x0a +#define LP5024_LED4_BRT 0x0b +#define LP5024_LED5_BRT 0x0c +#define LP5024_LED6_BRT 0x0d +#define LP5024_LED7_BRT 0x0e + +#define LP5024_OUT0_CLR 0x0f +#define LP5024_OUT1_CLR 0x10 +#define LP5024_OUT2_CLR 0x11 +#define LP5024_OUT3_CLR 0x12 +#define LP5024_OUT4_CLR 0x13 +#define LP5024_OUT5_CLR 0x14 +#define LP5024_OUT6_CLR 0x15 +#define LP5024_OUT7_CLR 0x16 +#define LP5024_OUT8_CLR 0x17 +#define LP5024_OUT9_CLR 0x18 +#define LP5024_OUT10_CLR 0x19 +#define LP5024_OUT11_CLR 0x1a +#define LP5024_OUT12_CLR 0x1b +#define LP5024_OUT13_CLR 0x1c +#define LP5024_OUT14_CLR 0x1d +#define LP5024_OUT15_CLR 0x1e +#define LP5024_OUT16_CLR 0x1f +#define LP5024_OUT17_CLR 0x20 +#define LP5024_OUT18_CLR 0x21 +#define LP5024_OUT19_CLR 0x22 +#define LP5024_OUT20_CLR 0x23 +#define LP5024_OUT21_CLR 0x24 +#define LP5024_OUT22_CLR 0x25 +#define LP5024_OUT23_CLR 0x26 +#define LP5024_RESET 0x27 + +/* LP5030 and LP5036 registers */ +#define LP5036_LED_CFG1 0x03 +#define LP5036_BNK_BRT 0x04 +#define LP5036_BNKA_CLR 0x05 +#define LP5036_BNKB_CLR 0x06 +#define LP5036_BNKC_CLR 0x07 +#define LP5036_LED0_BRT 0x08 +#define LP5036_LED1_BRT 0x09 +#define LP5036_LED2_BRT 0x0a +#define LP5036_LED3_BRT 0x0b +#define LP5036_LED4_BRT 0x0c +#define LP5036_LED5_BRT 0x0d +#define LP5036_LED6_BRT 0x0e +#define LP5036_LED7_BRT 0x0f +#define LP5036_LED8_BRT 0x10 +#define LP5036_LED9_BRT 0x11 +#define LP5036_LED10_BRT 0x12 +#define LP5036_LED11_BRT 0x13 + +#define LP5036_OUT0_CLR 0x14 +#define LP5036_OUT1_CLR 0x15 +#define LP5036_OUT2_CLR 0x16 +#define LP5036_OUT3_CLR 0x17 +#define LP5036_OUT4_CLR 0x18 +#define LP5036_OUT5_CLR 0x19 +#define LP5036_OUT6_CLR 0x1a +#define LP5036_OUT7_CLR 0x1b +#define LP5036_OUT8_CLR 0x1c +#define LP5036_OUT9_CLR 0x1d +#define LP5036_OUT10_CLR 0x1e +#define LP5036_OUT11_CLR 0x1f +#define LP5036_OUT12_CLR 0x20 +#define LP5036_OUT13_CLR 0x21 +#define LP5036_OUT14_CLR 0x22 +#define LP5036_OUT15_CLR 0x23 +#define LP5036_OUT16_CLR 0x24 +#define LP5036_OUT17_CLR 0x25 +#define LP5036_OUT18_CLR 0x26 +#define LP5036_OUT19_CLR 0x27 +#define LP5036_OUT20_CLR 0x28 +#define LP5036_OUT21_CLR 0x29 +#define LP5036_OUT22_CLR 0x2a +#define LP5036_OUT23_CLR 0x2b +#define LP5036_OUT24_CLR 0x2c +#define LP5036_OUT25_CLR 0x2d +#define LP5036_OUT26_CLR 0x2e +#define LP5036_OUT27_CLR 0x2f +#define LP5036_OUT28_CLR 0x30 +#define LP5036_OUT29_CLR 0x31 +#define LP5036_OUT30_CLR 0x32 +#define LP5036_OUT31_CLR 0x33 +#define LP5036_OUT32_CLR 0x34 +#define LP5036_OUT33_CLR 0x35 +#define LP5036_OUT34_CLR 0x36 +#define LP5036_OUT35_CLR 0x37 +#define LP5036_RESET 0x38 + +#define LP50XX_SW_RESET 0xff +#define LP50XX_CHIP_EN BIT(6) + +#define LP5009_MAX_LED_MODULES 2 +#define LP5012_MAX_LED_MODULES 4 +#define LP5018_MAX_LED_MODULES 6 +#define LP5024_MAX_LED_MODULES 8 +#define LP5030_MAX_LED_MODULES 10 +#define LP5036_MAX_LED_MODULES 12 + +enum lp50xx_model { + LP5009, + LP5012, + LP5018, + LP5024, + LP5030, + LP5036, +}; + +struct lp50xx_led { + struct led_classdev led_dev; + struct led_classdev_mc mc_cdev; + struct lp50xx *priv; + unsigned long bank_modules; + char label[LED_MAX_NAME_SIZE]; + u8 ctrl_bank_enabled; + u32 available_leds; + int led_number; +}; + +/** + * struct lp50xx - + * @enable_gpio: Hardware enable gpio + * @regulator: LED supply regulator pointer + * @client: Pointer to the I2C client + * @regmap: Devices register map + * @dev: Pointer to the devices device struct + * @lock: Lock for reading/writing the device + * @model_id: id of the device + * @max_leds: maximum number of LEDs the device supports + * @num_of_banked_leds: holds the number of banked LEDs + * @led_brightness0_reg: first brightness register of the device + * @mix_out0_reg: first color mix register of the device + * @bank_brt_reg: bank brightness register + * @bank_mix_reg: color mix register + * @reset_reg: devices reset register + * @leds: Array of LED strings + */ +struct lp50xx { + struct gpio_desc *enable_gpio; + struct regulator *regulator; + struct i2c_client *client; + struct regmap *regmap; + struct device *dev; + struct mutex lock; + enum lp50xx_model model_id; + int max_leds; + int num_of_banked_leds; + + u8 led_brightness0_reg; + u8 mix_out0_reg; + u8 bank_brt_reg; + u8 bank_mix_reg; + u8 reset_reg; + + /* This needs to be at the end of the struct */ + struct lp50xx_led leds[]; +}; + +static const struct reg_default lp5012_reg_defs[] = { + {LP50XX_DEV_CFG0, 0x0}, + {LP50XX_DEV_CFG1, 0x3c}, + {LP50XX_LED_CFG0, 0x0}, + {LP5012_BNK_BRT, 0xff}, + {LP5012_BNKA_CLR, 0x0f}, + {LP5012_BNKB_CLR, 0x0f}, + {LP5012_BNKC_CLR, 0x0f}, + {LP5012_LED0_BRT, 0x0f}, + {LP5012_LED1_BRT, 0xff}, + {LP5012_LED2_BRT, 0xff}, + {LP5012_LED3_BRT, 0xff}, + {LP5012_OUT0_CLR, 0x0f}, + {LP5012_OUT1_CLR, 0x00}, + {LP5012_OUT2_CLR, 0x00}, + {LP5012_OUT3_CLR, 0x00}, + {LP5012_OUT4_CLR, 0x00}, + {LP5012_OUT5_CLR, 0x00}, + {LP5012_OUT6_CLR, 0x00}, + {LP5012_OUT7_CLR, 0x00}, + {LP5012_OUT8_CLR, 0x00}, + {LP5012_OUT9_CLR, 0x00}, + {LP5012_OUT10_CLR, 0x00}, + {LP5012_OUT11_CLR, 0x00}, + {LP5012_RESET, 0x00} +}; + +static const struct reg_default lp5024_reg_defs[] = { + {LP50XX_DEV_CFG0, 0x0}, + {LP50XX_DEV_CFG1, 0x3c}, + {LP50XX_LED_CFG0, 0x0}, + {LP5024_BNK_BRT, 0xff}, + {LP5024_BNKA_CLR, 0x0f}, + {LP5024_BNKB_CLR, 0x0f}, + {LP5024_BNKC_CLR, 0x0f}, + {LP5024_LED0_BRT, 0x0f}, + {LP5024_LED1_BRT, 0xff}, + {LP5024_LED2_BRT, 0xff}, + {LP5024_LED3_BRT, 0xff}, + {LP5024_LED4_BRT, 0xff}, + {LP5024_LED5_BRT, 0xff}, + {LP5024_LED6_BRT, 0xff}, + {LP5024_LED7_BRT, 0xff}, + {LP5024_OUT0_CLR, 0x0f}, + {LP5024_OUT1_CLR, 0x00}, + {LP5024_OUT2_CLR, 0x00}, + {LP5024_OUT3_CLR, 0x00}, + {LP5024_OUT4_CLR, 0x00}, + {LP5024_OUT5_CLR, 0x00}, + {LP5024_OUT6_CLR, 0x00}, + {LP5024_OUT7_CLR, 0x00}, + {LP5024_OUT8_CLR, 0x00}, + {LP5024_OUT9_CLR, 0x00}, + {LP5024_OUT10_CLR, 0x00}, + {LP5024_OUT11_CLR, 0x00}, + {LP5024_OUT12_CLR, 0x00}, + {LP5024_OUT13_CLR, 0x00}, + {LP5024_OUT14_CLR, 0x00}, + {LP5024_OUT15_CLR, 0x00}, + {LP5024_OUT16_CLR, 0x00}, + {LP5024_OUT17_CLR, 0x00}, + {LP5024_OUT18_CLR, 0x00}, + {LP5024_OUT19_CLR, 0x00}, + {LP5024_OUT20_CLR, 0x00}, + {LP5024_OUT21_CLR, 0x00}, + {LP5024_OUT22_CLR, 0x00}, + {LP5024_OUT23_CLR, 0x00}, + {LP5024_RESET, 0x00} +}; + +static const struct reg_default lp5036_reg_defs[] = { + {LP50XX_DEV_CFG0, 0x0}, + {LP50XX_DEV_CFG1, 0x3c}, + {LP50XX_LED_CFG0, 0x0}, + {LP5036_LED_CFG1, 0x0}, + {LP5036_BNK_BRT, 0xff}, + {LP5036_BNKA_CLR, 0x0f}, + {LP5036_BNKB_CLR, 0x0f}, + {LP5036_BNKC_CLR, 0x0f}, + {LP5036_LED0_BRT, 0x0f}, + {LP5036_LED1_BRT, 0xff}, + {LP5036_LED2_BRT, 0xff}, + {LP5036_LED3_BRT, 0xff}, + {LP5036_LED4_BRT, 0xff}, + {LP5036_LED5_BRT, 0xff}, + {LP5036_LED6_BRT, 0xff}, + {LP5036_LED7_BRT, 0xff}, + {LP5036_OUT0_CLR, 0x0f}, + {LP5036_OUT1_CLR, 0x00}, + {LP5036_OUT2_CLR, 0x00}, + {LP5036_OUT3_CLR, 0x00}, + {LP5036_OUT4_CLR, 0x00}, + {LP5036_OUT5_CLR, 0x00}, + {LP5036_OUT6_CLR, 0x00}, + {LP5036_OUT7_CLR, 0x00}, + {LP5036_OUT8_CLR, 0x00}, + {LP5036_OUT9_CLR, 0x00}, + {LP5036_OUT10_CLR, 0x00}, + {LP5036_OUT11_CLR, 0x00}, + {LP5036_OUT12_CLR, 0x00}, + {LP5036_OUT13_CLR, 0x00}, + {LP5036_OUT14_CLR, 0x00}, + {LP5036_OUT15_CLR, 0x00}, + {LP5036_OUT16_CLR, 0x00}, + {LP5036_OUT17_CLR, 0x00}, + {LP5036_OUT18_CLR, 0x00}, + {LP5036_OUT19_CLR, 0x00}, + {LP5036_OUT20_CLR, 0x00}, + {LP5036_OUT21_CLR, 0x00}, + {LP5036_OUT22_CLR, 0x00}, + {LP5036_OUT23_CLR, 0x00}, + {LP5036_OUT24_CLR, 0x00}, + {LP5036_OUT25_CLR, 0x00}, + {LP5036_OUT26_CLR, 0x00}, + {LP5036_OUT27_CLR, 0x00}, + {LP5036_OUT28_CLR, 0x00}, + {LP5036_OUT29_CLR, 0x00}, + {LP5036_OUT30_CLR, 0x00}, + {LP5036_OUT31_CLR, 0x00}, + {LP5036_OUT32_CLR, 0x00}, + {LP5036_OUT33_CLR, 0x00}, + {LP5036_OUT34_CLR, 0x00}, + {LP5036_OUT35_CLR, 0x00}, + {LP5036_RESET, 0x00} +}; + +static const struct regmap_config lp5012_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = LP5012_RESET, + .reg_defaults = lp5012_reg_defs, + .num_reg_defaults = ARRAY_SIZE(lp5012_reg_defs), + .cache_type = REGCACHE_RBTREE, +}; + +static const struct regmap_config lp5024_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = LP5024_RESET, + .reg_defaults = lp5024_reg_defs, + .num_reg_defaults = ARRAY_SIZE(lp5024_reg_defs), + .cache_type = REGCACHE_RBTREE, +}; + +static const struct regmap_config lp5036_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = LP5036_RESET, + .reg_defaults = lp5036_reg_defs, + .num_reg_defaults = ARRAY_SIZE(lp5036_reg_defs), + .cache_type = REGCACHE_RBTREE, +}; + +static struct lp50xx_led *mcled_cdev_to_led(struct led_classdev_mc *mcled_cdev) +{ + return container_of(mcled_cdev, struct lp50xx_led, mc_cdev); +} + +static int lp50xx_brightness_set(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct lp50xx_led *led = container_of(cdev, struct lp50xx_led, led_dev); + int ret = 0; + u8 reg_val; + + mutex_lock(&led->priv->lock); + + if (led->ctrl_bank_enabled) + reg_val = led->priv->bank_brt_reg; + else + reg_val = led->priv->led_brightness0_reg + led->led_number; + + ret = regmap_write(led->priv->regmap, reg_val, brightness); + + mutex_unlock(&led->priv->lock); + + return ret; +} + +static enum led_brightness lp50xx_brightness_get(struct led_classdev *cdev) +{ + struct lp50xx_led *led = container_of(cdev, struct lp50xx_led, led_dev); + unsigned int brt_val; + u8 reg_val; + int ret; + + mutex_lock(&led->priv->lock); + + if (led->ctrl_bank_enabled) + reg_val = led->priv->bank_brt_reg; + else + reg_val = led->priv->led_brightness0_reg + led->led_number; + + ret = regmap_read(led->priv->regmap, reg_val, &brt_val); + + mutex_unlock(&led->priv->lock); + + return brt_val; +} + +static int lp50xx_get_color(struct led_classdev_mc *mcled_cdev, int color) +{ + struct lp50xx_led *led = mcled_cdev_to_led(mcled_cdev); + struct lp50xx *priv = led->priv; + u8 led_offset, reg_number, reg_color_off; + unsigned int value; + int ret; + + if (color == LED_COLOR_ID_RED) + reg_color_off = 0; + else if (color == LED_COLOR_ID_GREEN) + reg_color_off = 1; + else if (color == LED_COLOR_ID_BLUE) + reg_color_off = 2; + else + goto out; + + if (led->ctrl_bank_enabled) { + reg_number = priv->bank_mix_reg + reg_color_off; + } else { + led_offset = (led->led_number * 3) + reg_color_off; + reg_number = priv->mix_out0_reg + led_offset; + } + + ret = regmap_read(led->priv->regmap, reg_number, &value); + if (ret) { + dev_err(&priv->client->dev, "Cannot write LED value\n"); + goto out; + } +out: + return value; +} + +static int lp50xx_set_color(struct led_classdev_mc *mcled_cdev, + int color, int value) +{ + struct lp50xx_led *led = mcled_cdev_to_led(mcled_cdev); + struct lp50xx *priv = led->priv; + u8 led_offset, reg_number, reg_color_off; + int ret = -EINVAL; + + if (color == LED_COLOR_ID_RED) + reg_color_off = 0; + else if (color == LED_COLOR_ID_GREEN) + reg_color_off = 1; + else if (color == LED_COLOR_ID_BLUE) + reg_color_off = 2; + else + goto out; + + if (led->ctrl_bank_enabled) { + reg_number = priv->bank_mix_reg + reg_color_off; + } else { + led_offset = (led->led_number * 3) + reg_color_off; + reg_number = priv->mix_out0_reg + led_offset; + } + + ret = regmap_write(priv->regmap, reg_number, value); + if (ret) { + dev_err(&priv->client->dev, "Cannot write LED value\n"); + goto out; + } +out: + return ret; +} + +static struct led_multicolor_ops lp50xx_mc_ops = { + .set_color_brightness = lp50xx_set_color, + .get_color_brightness = lp50xx_get_color, +}; + +static void lp50xx_set_led_values(struct lp50xx *priv) +{ + if (priv->model_id == LP5009 || priv->model_id == LP5012) { + priv->led_brightness0_reg = LP5012_LED0_BRT; + priv->mix_out0_reg = LP5012_OUT0_CLR; + priv->bank_brt_reg = LP5012_BNK_BRT; + priv->bank_mix_reg = LP5012_BNKA_CLR; + priv->reset_reg = LP5012_RESET; + } else if (priv->model_id == LP5018 || priv->model_id == LP5024) { + priv->led_brightness0_reg = LP5024_LED0_BRT; + priv->mix_out0_reg = LP5024_OUT0_CLR; + priv->bank_brt_reg = LP5024_BNK_BRT; + priv->bank_mix_reg = LP5024_BNKA_CLR; + priv->reset_reg = LP5024_RESET; + } else { + priv->led_brightness0_reg = LP5036_LED0_BRT; + priv->mix_out0_reg = LP5036_OUT0_CLR; + priv->bank_brt_reg = LP5036_BNK_BRT; + priv->bank_mix_reg = LP5036_BNKA_CLR; + priv->reset_reg = LP5036_RESET; + } +} + +static int lp50xx_set_banks(struct lp50xx *priv, u32 led_strings[]) +{ + u8 led_ctrl_enable = 0; + u8 led1_ctrl_enable = 0; + u8 ctrl_ext = 0; + int ret; + int j; + + for (j = 0; j <= priv->max_leds - 1; j++) { + if (led_strings[j] > (LP5024_MAX_LED_MODULES - 1)) { + ctrl_ext = led_strings[j] - LP5024_MAX_LED_MODULES; + led1_ctrl_enable |= (1 << ctrl_ext); + } else { + led_ctrl_enable |= (1 << led_strings[j]); + } + } + + ret = regmap_write(priv->regmap, LP50XX_LED_CFG0, led_ctrl_enable); + + if (led1_ctrl_enable) + ret = regmap_write(priv->regmap, LP5036_LED_CFG1, + led1_ctrl_enable); + + return ret; +} + +static int lp50xx_reset(struct lp50xx *priv) +{ + if (priv->enable_gpio) + return gpiod_direction_output(priv->enable_gpio, 1); + else + return regmap_write(priv->regmap, priv->reset_reg, + LP50XX_SW_RESET); +} + +static int lp50xx_enable_disable(struct lp50xx *priv, u8 enable_disable) +{ + return regmap_write(priv->regmap, LP50XX_DEV_CFG0, enable_disable); +} + +static int lp50xx_probe_dt(struct lp50xx *priv) +{ + u32 led_strings[LP5036_MAX_LED_MODULES]; + struct fwnode_handle *child = NULL; + struct fwnode_handle *led_node = NULL; + struct led_init_data init_data; + struct lp50xx_led *led; + int num_colors; + u32 color_id; + int led_number; + size_t i = 0; + int ret; + + priv->enable_gpio = devm_gpiod_get_optional(&priv->client->dev, + "enable", GPIOD_OUT_LOW); + if (IS_ERR(priv->enable_gpio)) { + ret = PTR_ERR(priv->enable_gpio); + dev_err(&priv->client->dev, "Failed to get enable gpio: %d\n", + ret); + return ret; + } + + priv->regulator = devm_regulator_get(&priv->client->dev, "vled"); + if (IS_ERR(priv->regulator)) + priv->regulator = NULL; + + if (priv->model_id == LP5009) + priv->max_leds = LP5009_MAX_LED_MODULES; + else if (priv->model_id == LP5012) + priv->max_leds = LP5012_MAX_LED_MODULES; + else if (priv->model_id == LP5018) + priv->max_leds = LP5018_MAX_LED_MODULES; + else if (priv->model_id == LP5024) + priv->max_leds = LP5024_MAX_LED_MODULES; + else if (priv->model_id == LP5030) + priv->max_leds = LP5030_MAX_LED_MODULES; + else + priv->max_leds = LP5036_MAX_LED_MODULES; + + device_for_each_child_node(&priv->client->dev, child) { + led = &priv->leds[i]; + if (fwnode_property_present(child, "ti,led-bank")) { + ret = fwnode_property_read_u32_array(child, + "ti,led-bank", + NULL, 0); + ret = fwnode_property_read_u32_array(child, + "ti,led-bank", + led_strings, + ret); + + priv->num_of_banked_leds = ARRAY_SIZE(led_strings); + + ret = lp50xx_set_banks(priv, led_strings); + if (ret) { + dev_err(&priv->client->dev, + "Cannot setup banked LEDs\n"); + fwnode_handle_put(child); + goto child_out; + } + led->ctrl_bank_enabled = 1; + + } else { + ret = fwnode_property_read_u32(child, "reg", + &led_number); + + led->led_number = led_number; + } + if (ret) { + dev_err(&priv->client->dev, + "led sourcing property missing\n"); + fwnode_handle_put(child); + goto child_out; + } + + if (led_number > priv->max_leds) { + dev_err(&priv->client->dev, + "led-sources property is invalid\n"); + ret = -EINVAL; + fwnode_handle_put(child); + goto child_out; + } + + init_data.fwnode = child; + init_data.devicename = priv->client->name; + init_data.default_label = ":"; + + fwnode_property_read_string(child, "linux,default-trigger", + &led->led_dev.default_trigger); + num_colors = 0; + + fwnode_for_each_child_node(child, led_node) { + ret = fwnode_property_read_u32(led_node, "color", + &color_id); + if (ret) + dev_err(&priv->client->dev, + "Cannot read color\n"); + + led->mc_cdev.available_colors |= (1 << color_id); + num_colors++; + + } + + led->priv = priv; + led->mc_cdev.ops = &lp50xx_mc_ops; + led->mc_cdev.num_leds = num_colors; + led->mc_cdev.led_cdev = &led->led_dev; + led->led_dev.brightness_set_blocking = lp50xx_brightness_set; + led->led_dev.brightness_get = lp50xx_brightness_get; + ret = led_classdev_multicolor_register_ext(&priv->client->dev, + &led->mc_cdev, + &init_data); + if (ret) { + dev_err(&priv->client->dev, "led register err: %d\n", + ret); + fwnode_handle_put(child); + goto child_out; + } + i++; + } + +child_out: + return ret; +} + +static int lp50xx_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct lp50xx *led; + int count; + int ret; + + count = device_get_child_node_count(&client->dev); + if (!count) { + dev_err(&client->dev, "LEDs are not defined in device tree!"); + return -ENODEV; + } + + led = devm_kzalloc(&client->dev, struct_size(led, leds, count), + GFP_KERNEL); + if (!led) + return -ENOMEM; + + mutex_init(&led->lock); + led->client = client; + led->dev = &client->dev; + led->model_id = id->driver_data; + i2c_set_clientdata(client, led); + + if (led->model_id == LP5009 || led->model_id == LP5012) + led->regmap = devm_regmap_init_i2c(client, + &lp5012_regmap_config); + else if (led->model_id == LP5018 || led->model_id == LP5024) + led->regmap = devm_regmap_init_i2c(client, + &lp5024_regmap_config); + else + led->regmap = devm_regmap_init_i2c(client, + &lp5036_regmap_config); + + if (IS_ERR(led->regmap)) { + ret = PTR_ERR(led->regmap); + dev_err(&client->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + ret = lp50xx_reset(led); + if (ret) + return ret; + + ret = lp50xx_probe_dt(led); + if (ret) + return ret; + + lp50xx_set_led_values(led); + + return lp50xx_enable_disable(led, LP50XX_CHIP_EN); +} + +static int lp50xx_remove(struct i2c_client *client) +{ + struct lp50xx *led = i2c_get_clientdata(client); + int ret; + + ret = lp50xx_enable_disable(led, LP50XX_CHIP_EN); + if (ret) { + dev_err(&led->client->dev, "Failed to disable regulator\n"); + return ret; + } + + if (led->enable_gpio) + gpiod_direction_output(led->enable_gpio, 0); + + if (led->regulator) { + ret = regulator_disable(led->regulator); + if (ret) + dev_err(&led->client->dev, + "Failed to disable regulator\n"); + } + + mutex_destroy(&led->lock); + + return 0; +} + +static const struct i2c_device_id lp50xx_id[] = { + { "lp5009", LP5009 }, + { "lp5012", LP5012 }, + { "lp5018", LP5018 }, + { "lp5024", LP5024 }, + { "lp5030", LP5030 }, + { "lp5036", LP5036 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lp50xx_id); + +static const struct of_device_id of_lp50xx_leds_match[] = { + { .compatible = "ti,lp5009", }, + { .compatible = "ti,lp5012", }, + { .compatible = "ti,lp5018", }, + { .compatible = "ti,lp5024", }, + { .compatible = "ti,lp5030", }, + { .compatible = "ti,lp5036", }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_lp50xx_leds_match); + +static struct i2c_driver lp50xx_driver = { + .driver = { + .name = "lp50xx", + .of_match_table = of_lp50xx_leds_match, + }, + .probe = lp50xx_probe, + .remove = lp50xx_remove, + .id_table = lp50xx_id, +}; +module_i2c_driver(lp50xx_driver); + +MODULE_DESCRIPTION("Texas Instruments LP50XX LED driver"); +MODULE_AUTHOR("Dan Murphy "); +MODULE_LICENSE("GPL v2");