From patchwork Tue Jun 18 13:59:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dzmitry Sankouski X-Patchwork-Id: 1949184 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=l+j5v8fD; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:4601:e00::3; helo=am.mirrors.kernel.org; envelope-from=linux-pwm+bounces-2515-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from am.mirrors.kernel.org (am.mirrors.kernel.org [IPv6:2604:1380:4601:e00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4W3TPk0KFPz20Ws for ; Wed, 19 Jun 2024 00:18:34 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 3284F1F21AF0 for ; Tue, 18 Jun 2024 14:18:31 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2D12A19F478; Tue, 18 Jun 2024 14:00:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="l+j5v8fD" X-Original-To: linux-pwm@vger.kernel.org Received: from mail-ed1-f53.google.com (mail-ed1-f53.google.com [209.85.208.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EE5E519E83A; Tue, 18 Jun 2024 14:00:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.53 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718719228; cv=none; b=YYBmah8+k6SQzVhKBUPu4C/1dXCaTAGesGdePpRtqzRw5hbmVLQoIFNLbUERtnK3tP0RnfcyixIyLyQO/n5q/uwR2QWNcYG4goW0D94lj24SDr1RILls4uFZxRY4KIhHxfw0uXGTbBgcFBlAY3LyY/7kFeLoOf7vJ/n+yw6ZLPQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718719228; c=relaxed/simple; bh=pPwrFR5exq+IxTWESOD7VyV5pvbIzgEk0udUDtiXqZg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ViuCkfFBrYH5MUdGzvhKk4OsmhEMZmlAHxprIr/s69wcs+jd7+U/iAY1CHkEoDi+lFcMPrU6PGItHNli6I9fsRUmaj2QIGeh7NLSYol1Iax0RbOdychsBYUOD9pH+1B1CTIKHQHqztaSyQj2otN5dqoQYwVyLQEX41xuQHLvPRI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=l+j5v8fD; arc=none smtp.client-ip=209.85.208.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-ed1-f53.google.com with SMTP id 4fb4d7f45d1cf-57c714a1e24so6223782a12.2; Tue, 18 Jun 2024 07:00:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718719224; x=1719324024; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=OEluC/nRoMdvS4Ro4zahM5vs8cVpDlDDLc77qRFJKWo=; b=l+j5v8fDhfbzU0aPjhDH2NTYWcoQltn2rQWlPblL3QJgS7BpBxTxJf3Uw/SrSh47BE EnHh9Ev8ZEP3uxUb2TFsGawNvjhdnnAV2WIsvtjyei5dE+kxbEzx0G1Tz+C4cdvjL/yB JjRLY3pCgQyA5y4O3+5y4GgPx6AAXaSHYSMlnB3jhDbpxr64M2iRbovFv8eArjwVwQfc 9QtDr/yNdu8BJKNeIYeN7UyodU/2s1QskFpU/TC4DRXtRtd6mhdzV6byyxOQuv7JXVeW 0HRt5XUnqpQ3KSQ4EntHzJtp6KZhDYVKQbuGgEUm3psA9+gPyzxgobakCvL8OwfefrPh pHIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718719224; x=1719324024; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=OEluC/nRoMdvS4Ro4zahM5vs8cVpDlDDLc77qRFJKWo=; b=f112oDAsWjuNoKyiFKxEBBSOcGf2s2CHJ2Zg5ueTlgIX3PkeZyhKQOxAcFehVr291u T4hro3iSW9RO9GGDm1HCsHL2Zfa4fndu8w5glXlHHul7jWfmnKKi+6tydX7iCGcVpS+E M3L5QfdL7PRtdh35O+Ft7ZGfS3E5D4CAjcjMRn8r1Ror47wHrq0crNwjYnTAlilruTyt 3rhxpabv0yKWu5f0n7nbr92jXD4sbAo4ohMMXRY1izUEM+8aoDeUg7OS9e9vx4ZSU2bo fJYoEyUapo/zhmk9JQVU5RPJO2eoPajTzr/rOlcwPvvdN4y0ZRPqQrthSd8HOWopaLw5 GoPg== X-Forwarded-Encrypted: i=1; AJvYcCVp3kJMSMImQDvDeKivzGXThjSO1rqT8yPBBVb0ITYe93lKIZzF8dWR35/dUCf3IVClB7YS96AlKYs9vAyRAsU2kHcYZfUVHAnh+JGxlztGss/MacrCqkRSCXW6M++wt1pGlDMCxGJeAuxjfuBzuINgS2wD9o5WRg0HUpyg5FFYiZtoklgYZYZAUg6opsi9cNygxm3UgVRrl60pOJazCUrp8+kzIZI9YEgDVMFSBwfyx1r+HoZfLCjmCOPzVZDZru8Ni4nUlFj9jvV3TSNsd5iJlsBayxEb8ll8OCiWkDydfu4lk2m8QKDeJo9/mocNK6rGYm+2xQvgp142MBAmuceXSOa52D7DYR+76/ZqVCnKG36E98YJN1J6licCxBXJfU9pLBKK5DkqeZVxR1WNJ5G4wlsI9jGk X-Gm-Message-State: AOJu0Yz3/qJNYPSeh1Unux5yUuOz9ZFgiIPJZd5eBMh8G2dEUjWPCXLP CS3C5iGG9CQuBPx/sBLfpkMgsa2Llo7UddYtTusfbylzvBzUd2EE X-Google-Smtp-Source: AGHT+IEXoTD4UVq/0bh14D5fCZNipCHOrom/4r6nnwXy173CyH9/8knLg1HbtmmM6CIGaSTERIqipw== X-Received: by 2002:a50:9b48:0:b0:57c:7676:ea4d with SMTP id 4fb4d7f45d1cf-57cbd682be9mr7568090a12.13.1718719224127; Tue, 18 Jun 2024 07:00:24 -0700 (PDT) Received: from [127.0.1.1] (mm-167-232-122-178.mgts.dynamic.pppoe.byfly.by. [178.122.232.167]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-57cb72da156sm7731278a12.22.2024.06.18.07.00.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Jun 2024 07:00:23 -0700 (PDT) From: Dzmitry Sankouski Date: Tue, 18 Jun 2024 16:59:50 +0300 Subject: [PATCH v3 16/23] leds: max77705: Add LEDs support Precedence: bulk X-Mailing-List: linux-pwm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240618-starqltechn_integration_upstream-v3-16-e3f6662017ac@gmail.com> References: <20240618-starqltechn_integration_upstream-v3-0-e3f6662017ac@gmail.com> In-Reply-To: <20240618-starqltechn_integration_upstream-v3-0-e3f6662017ac@gmail.com> To: Sebastian Reichel , Bjorn Andersson , Michael Turquette , Stephen Boyd , Neil Armstrong , Jessica Zhang , Sam Ravnborg , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lee Jones , Dmitry Torokhov , Pavel Machek , Liam Girdwood , Mark Brown , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Krzysztof Kozlowski , Konrad Dybcio , Chanwoo Choi , phone-devel@vger.kernel.org Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-input@vger.kernel.org, linux-leds@vger.kernel.org, linux-pwm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Dzmitry Sankouski X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1718719185; l=6791; i=dsankouski@gmail.com; s=20240618; h=from:subject:message-id; bh=pPwrFR5exq+IxTWESOD7VyV5pvbIzgEk0udUDtiXqZg=; b=L9i9P5Ho7DBA/hISx6SLpWJuEv3//Q9yHsSr3YHDDzpUOQotvp/jufa3+eEe2F3R7zNpjo4ID wvCHTWg9mzSDgKnrLjvEgBpfMTFTttsEnSsmZzX1v9P8ucbLM/kivkc X-Developer-Key: i=dsankouski@gmail.com; a=ed25519; pk=6pMMVVDDReSiRgPCbMOUauN5nS3ty4Sf5b7a2gi4x0M= This adds basic support for LEDs for the max77705 PMIC. Signed-off-by: Dzmitry Sankouski --- MAINTAINERS | 1 + drivers/leds/Kconfig | 6 ++ drivers/leds/Makefile | 1 + drivers/leds/leds-max77705.c | 166 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 174 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index f66f08825db9..f3c245d432d9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13691,6 +13691,7 @@ F: drivers/*/max14577*.c F: drivers/*/max77686*.c F: drivers/*/max77693*.c F: drivers/*/max77705*.c +F: drivers/leds/leds-max77705.c F: drivers/clk/clk-max77686.c F: drivers/extcon/extcon-max14577.c F: drivers/extcon/extcon-max77693.c diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 05e6af88b88c..14d483011308 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -728,6 +728,12 @@ config LEDS_MAX77650 help LEDs driver for MAX77650 family of PMICs from Maxim Integrated. +config LEDS_MAX77705 + tristate "LED support for Maxim MAX77705 RGB" + depends on MFD_MAX77705 && LEDS_CLASS && I2C + help + LED driver for MAX77705 MFD chip from Maxim Integrated. + config LEDS_MAX8997 tristate "LED support for MAX8997 PMIC" depends on LEDS_CLASS && MFD_MAX8997 diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index effdfc6f1e95..be064e3d678e 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -58,6 +58,7 @@ obj-$(CONFIG_LEDS_LP8860) += leds-lp8860.o obj-$(CONFIG_LEDS_LT3593) += leds-lt3593.o obj-$(CONFIG_LEDS_MAX5970) += leds-max5970.o obj-$(CONFIG_LEDS_MAX77650) += leds-max77650.o +obj-$(CONFIG_LEDS_MAX77705) += leds-max77705.o obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o obj-$(CONFIG_LEDS_MC13783) += leds-mc13783.o obj-$(CONFIG_LEDS_MENF21BMC) += leds-menf21bmc.o diff --git a/drivers/leds/leds-max77705.c b/drivers/leds/leds-max77705.c new file mode 100644 index 000000000000..f91c0e41056c --- /dev/null +++ b/drivers/leds/leds-max77705.c @@ -0,0 +1,166 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Based on leds-max77650 driver: + * Copyright (C) 2018 BayLibre SAS + * Author: Bartosz Golaszewski + * + * LED driver for MAXIM 77705 MFD. + * Copyright (C) 2024 Dzmitry Sankouski + */ + +#include +#include +#include +#include +#include +#include +#include + +#define MAX77705_LED_NUM_LEDS 4 +#define MAX77705_LED_EN_MASK GENMASK(1, 0) +#define MAX77705_LED_MAX_BRIGHTNESS 0xff + +#define LEDBLNK_ON(time) ((time < 100) ? 0 : \ + (time < 500) ? time/100-1 : \ + (time < 3250) ? (time-500)/250+4 : 15) + +#define LEDBLNK_OFF(time) ((time < 1) ? 0x00 : \ + (time < 500) ? 0x01 : \ + (time < 5000) ? time/500 : \ + (time < 8000) ? (time-5000)/1000+10 : \ + (time < 12000) ? (time-8000)/2000+13 : 15) + +struct max77705_led { + struct led_classdev cdev; + struct regmap *regmap; + unsigned int en_shift; + unsigned int reg_brightness; + unsigned int regB; +}; + +static struct max77705_led *max77705_to_led(struct led_classdev *cdev) +{ + return container_of(cdev, struct max77705_led, cdev); +} + +static int max77705_rgb_blink(struct led_classdev *cdev, + unsigned long *delay_on, + unsigned long *delay_off) +{ + struct max77705_led *led = max77705_to_led(cdev); + int value; + + value = (LEDBLNK_ON(*delay_on) << 4) | LEDBLNK_OFF(*delay_off); + return regmap_write(led->regmap, MAX77705_RGBLED_REG_LEDBLNK, value); +} + +static int max77705_led_brightness_set(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct max77705_led *led = max77705_to_led(cdev); + int ret; + unsigned long blink_default = 0; + + if (brightness == LED_OFF) { + /* Flash OFF */ + ret = regmap_update_bits(led->regmap, + MAX77705_RGBLED_REG_LEDEN, + MAX77705_LED_EN_MASK << led->en_shift, 0); + max77705_rgb_blink(cdev, &blink_default, &blink_default); + } else { + /* Set current */ + ret = regmap_write(led->regmap, + led->reg_brightness, brightness); + if (ret < 0) + return ret; + + ret = regmap_update_bits(led->regmap, + MAX77705_RGBLED_REG_LEDEN, LED_ON << led->en_shift, + MAX77705_LED_EN_MASK << led->en_shift); + } + + return ret; +} + +static int max77705_led_probe(struct platform_device *pdev) +{ + struct fwnode_handle *child; + struct max77705_led *leds, *led; + struct device *dev; + struct regmap *map; + int rv, num_leds; + u32 reg; + + dev = &pdev->dev; + + leds = devm_kcalloc(dev, sizeof(*leds), + MAX77705_LED_NUM_LEDS, GFP_KERNEL); + if (!leds) + return -ENOMEM; + + map = dev_get_regmap(dev->parent, NULL); + if (!map) + return -ENODEV; + + num_leds = device_get_child_node_count(dev); + if (!num_leds || num_leds > MAX77705_LED_NUM_LEDS) + return -ENODEV; + + device_for_each_child_node(dev, child) { + struct led_init_data init_data = {}; + + rv = fwnode_property_read_u32(child, "reg", ®); + if (rv || reg >= MAX77705_LED_NUM_LEDS) { + rv = -EINVAL; + goto err_node_put; + } + + led = &leds[reg]; + led->regmap = map; + led->reg_brightness = MAX77705_RGBLED_REG_LED0BRT + reg; + led->en_shift = 2 * reg; + led->cdev.brightness_set_blocking = max77705_led_brightness_set; + led->cdev.blink_set = max77705_rgb_blink; + led->cdev.max_brightness = MAX77705_LED_MAX_BRIGHTNESS; + + init_data.fwnode = child; + init_data.devicename = "max77705"; + /* for backwards compatibility if `label` is not present */ + init_data.default_label = ":"; + + rv = devm_led_classdev_register_ext(dev, &led->cdev, + &init_data); + if (rv) + goto err_node_put; + + rv = max77705_led_brightness_set(&led->cdev, LED_OFF); + if (rv) + goto err_node_put; + } + + return 0; +err_node_put: + fwnode_handle_put(child); + return rv; +} + +static const struct of_device_id max77705_led_of_match[] = { + { .compatible = "maxim,max77705-led" }, + { } +}; +MODULE_DEVICE_TABLE(of, max77705_led_of_match); + +static struct platform_driver max77705_led_driver = { + .driver = { + .name = "max77705-led", + .of_match_table = max77705_led_of_match, + }, + .probe = max77705_led_probe, +}; +module_platform_driver(max77705_led_driver); + +MODULE_DESCRIPTION("MAXIM 77705 LED driver"); +MODULE_AUTHOR("Bartosz Golaszewski "); +MODULE_AUTHOR("Dzmitry Sankouski "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:max77705-led");