From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86973C432C3 for ; Mon, 18 Nov 2019 16:54:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4F5F1208C3 for ; Mon, 18 Nov 2019 16:54:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="QbziSNld" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726976AbfKRQyQ (ORCPT ); Mon, 18 Nov 2019 11:54:16 -0500 Received: from mail-qt1-f195.google.com ([209.85.160.195]:36371 "EHLO mail-qt1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726967AbfKRQyP (ORCPT ); Mon, 18 Nov 2019 11:54:15 -0500 Received: by mail-qt1-f195.google.com with SMTP id y10so20987682qto.3; Mon, 18 Nov 2019 08:54:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=H4ufcAjmGAp7yczEOXUlfsJjyH4uOivnQy6YSEvUqsg=; b=QbziSNldeobqFF9OMXSmIQYGaJoHL/ePsUtm8eQyQmHHgsgZ68SKOMpvnRGTdR+BBW 7YjDtKR5MKKnHtD4bKu2Rk2Jah+hpYCIZ0A6NGDt9zi3x6/rqA+i1FEuwOsH929iuJEG i8IPSS0uJYKJz1aUTFhxMz9P501+KwYF0PMYMhgppot6JSPr0JTeSfMdtB1ujQY9Mdo0 pOoH0gYW2dbUJma5kp3eVbn9c8Xsk0MAHzIBXbTJez+xWUaTFKE6WVbZF5dgbTIntg7u qhbMU7u7LyKxLScliguO53bi7BpKKzQyPLef+oCJPlwtKrxKqVygS8h6H49VNje45tsK jINA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=H4ufcAjmGAp7yczEOXUlfsJjyH4uOivnQy6YSEvUqsg=; b=Iap3L3AJbuZZeT/RnIgijkkXI6WJF2/dQ7aOFNZl9lrAAkwdNENUS03e6nFlmHGjub UtJ8UIjDJ/P+JAo6pPNVQgqThLsoRQFKTfsWfKBkGdpm4kaEz6ir95RRs2euP7RjktVG 8vctmnsY5FKWPKnACWFl+8mVF8RGOOHp2K0HIi2n673NYvex0qJm6qgREu77GUOA1jPr 14xjv5AFT1R5FFhk+R1jDq4EOPdzoQq9UGeGN1WxPrPX5WZ7JppYi44VhR8tAcUojcDu MubFVJGfmSFXSkCrC4nDaasBVOBkfbzk9J0VP1aT6HyyZV58c0/35OF2ruMavP398dna lA7w== X-Gm-Message-State: APjAAAXXoMh4FmQE9nEeZSVRUPL56qEQ0Wa5h7NFpbGbeGRx4HEOZ4j/ gDhKwqpjDK5wC9YrCJKcqLA= X-Google-Smtp-Source: APXvYqwuivbv+aucBKVlB/9FxFNP+IFXzVRozHzerseUT7JZI02d9QkrZCL2MJptvFgt1mF+o1K+pw== X-Received: by 2002:ac8:5282:: with SMTP id s2mr28276305qtn.362.1574096053594; Mon, 18 Nov 2019 08:54:13 -0800 (PST) Received: from localhost.localdomain ([72.53.229.209]) by smtp.gmail.com with ESMTPSA id a3sm8634648qkf.76.2019.11.18.08.54.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Nov 2019 08:54:13 -0800 (PST) From: Sven Van Asbroeck X-Google-Original-From: Sven Van Asbroeck To: Lee Jones , Liam Girdwood , Mark Brown , Jacek Anaszewski , Pavel Machek , Rob Herring Cc: Linus Walleij , Grigoryev Denis , Axel Lin , Dan Murphy , Mark Rutland , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org Subject: [PATCH v1 3/4] leds: tps6105x: add driver for mfd chip led mode Date: Mon, 18 Nov 2019 11:53:59 -0500 Message-Id: <20191118165400.21985-4-TheSven73@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191118165400.21985-1-TheSven73@gmail.com> References: <20191118165400.21985-1-TheSven73@gmail.com> Sender: linux-leds-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org This driver adds support for the led operational mode of the tps6105x mfd device. Example usage, devicetree: i2c0 { tps61052@33 { compatible = "ti,tps61052"; reg = <0x33>; tps-led { compatible = "ti,tps6105x-leds"; }; }; }; Example usage, platform data in machine layer: #include struct tps6105x_platform_data pdata = { .mode = TPS6105X_MODE_TORCH, }; Tree: next-20191118 Signed-off-by: Sven Van Asbroeck --- drivers/leds/Kconfig | 10 ++++++ drivers/leds/Makefile | 1 + drivers/leds/leds-tps6105x.c | 68 ++++++++++++++++++++++++++++++++++++ 3 files changed, 79 insertions(+) create mode 100644 drivers/leds/leds-tps6105x.c diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 4b68520ac251..7c7ceaa824a2 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -836,6 +836,16 @@ config LEDS_LM36274 Say Y to enable the LM36274 LED driver for TI LMU devices. This supports the LED device LM36274. +config LEDS_TPS6105X + tristate "LED support for TI TPS6105X" + depends on LEDS_CLASS + depends on TPS6105X + default y if TPS6105X + help + This driver supports TPS61050/TPS61052 led chips. + It is a single boost converter primarily for white LEDs and + audio amplifiers. + comment "LED Triggers" source "drivers/leds/trigger/Kconfig" diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 2da39e896ce8..d7e1107753fb 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -85,6 +85,7 @@ obj-$(CONFIG_LEDS_LM3601X) += leds-lm3601x.o obj-$(CONFIG_LEDS_TI_LMU_COMMON) += leds-ti-lmu-common.o obj-$(CONFIG_LEDS_LM3697) += leds-lm3697.o obj-$(CONFIG_LEDS_LM36274) += leds-lm36274.o +obj-$(CONFIG_LEDS_TPS6105X) += leds-tps6105x.o # LED SPI Drivers obj-$(CONFIG_LEDS_CR0014114) += leds-cr0014114.o diff --git a/drivers/leds/leds-tps6105x.c b/drivers/leds/leds-tps6105x.c new file mode 100644 index 000000000000..c68fc5b180ed --- /dev/null +++ b/drivers/leds/leds-tps6105x.c @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include +#include +#include +#include +#include + +struct tps6105x_priv { + struct regmap *regmap; + struct led_classdev cdev; +}; + +static int tps6105x_brightness_set(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct tps6105x_priv *priv = container_of(cdev, struct tps6105x_priv, + cdev); + + return regmap_update_bits(priv->regmap, TPS6105X_REG_0, + TPS6105X_REG0_TORCHC_MASK, + brightness << TPS6105X_REG0_TORCHC_SHIFT); +} + +static int tps6105x_led_probe(struct platform_device *pdev) +{ + struct tps6105x *tps6105x = dev_get_platdata(&pdev->dev); + struct tps6105x_platform_data *pdata = tps6105x->pdata; + struct device_node *np = pdev->dev.of_node; + struct tps6105x_priv *priv; + int ret; + + /* This instance is not set for led mode so bail out */ + if (pdata->mode != TPS6105X_MODE_TORCH) { + dev_info(&pdev->dev, + "chip not in torch mode, exit probe"); + return -EINVAL; + } + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + priv->regmap = tps6105x->regmap; + priv->cdev.name = np ? np->name : "tps6105x"; + priv->cdev.brightness_set_blocking = tps6105x_brightness_set; + priv->cdev.max_brightness = 7; + + ret = regmap_update_bits(tps6105x->regmap, TPS6105X_REG_0, + TPS6105X_REG0_MODE_MASK | TPS6105X_REG0_TORCHC_MASK, + TPS6105X_REG0_MODE_TORCH << TPS6105X_REG0_MODE_SHIFT); + if (ret) + return ret; + + return devm_led_classdev_register(&pdev->dev, &priv->cdev); +} + +static struct platform_driver led_driver = { + .probe = tps6105x_led_probe, + .driver = { + .name = "tps6105x-leds", + }, +}; + +module_platform_driver(led_driver); + +MODULE_DESCRIPTION("TPS6105x led driver"); +MODULE_AUTHOR("Sven Van Asbroeck "); +MODULE_LICENSE("GPL v2"); -- 2.17.1