From patchwork Sun Jun 26 01:15:12 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Agner X-Patchwork-Id: 9198941 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E5F4C6077D for ; Sun, 26 Jun 2016 01:17:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D50142845C for ; Sun, 26 Jun 2016 01:17:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C9B5828528; Sun, 26 Jun 2016 01:17:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id E9CB32845C for ; Sun, 26 Jun 2016 01:17:39 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bGygY-0001ey-9N; Sun, 26 Jun 2016 01:16:30 +0000 Received: from mail.kmu-office.ch ([178.209.48.109]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bGygC-0001Uv-4P; Sun, 26 Jun 2016 01:16:10 +0000 Received: from trochilidae.lan (unknown [IPv6:2601:602:8802:504f:3e97:eff:fe92:db3b]) by mail.kmu-office.ch (Postfix) with ESMTPSA id 7A8985C17D1; Sun, 26 Jun 2016 03:12:28 +0200 (CEST) From: Stefan Agner To: lee.jones@linaro.org, lgirdwood@gmail.com, broonie@kernel.org, khilman@baylibre.com, carlo@caione.org Subject: [PATCH v3 2/5] mfd: add Ricoh RN5T567 PMIC support Date: Sat, 25 Jun 2016 18:15:12 -0700 Message-Id: <20160626011515.4428-3-stefan@agner.ch> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20160626011515.4428-1-stefan@agner.ch> References: <20160626011515.4428-1-stefan@agner.ch> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=agner.ch; s=dkim; t=1466903552; bh=EE7P01HSIkyZwk88pDV8G0V7sCYYOBGDOuGF2zSQbDw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=Qp4oZxzr7Y5NVvuAmkVZHvzxn1//8vIjaxW31z7x2zUE+lY5p7n31u3Y9UadozfKGP7CAQ16iDGxW2sJZSopWpIwCGkk3wdYQaYL2cs38O/78YqQOQR/Fa0CQbnbOz1Lm3yt/JbdVNDiaaDsy5Ukbmy7EofCEThFrietU8Rkaxc= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160625_181608_540228_3E8AB53D X-CRM114-Status: GOOD ( 16.24 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, pawel.moll@arm.com, ijc+devicetree@hellion.org.uk, max.oss.09@gmail.com, linux@armlinux.org.uk, Stefan Agner , linux-kernel@vger.kernel.org, b.galvani@gmail.com, robh+dt@kernel.org, marcel@ziswiler.com, galak@codeaurora.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The Ricoh RN5T567 is from the same family as the Ricoh RN5T618 is, the differences are: + DCDC4 + Slightly different output voltage/currents + 32kHz Output - ADC/Charger capabilities Signed-off-by: Stefan Agner Reviewed-by: Marcel Ziswiler Acked-by: Rob Herring --- Documentation/devicetree/bindings/mfd/rn5t618.txt | 19 +++++++++-------- drivers/mfd/Kconfig | 7 ++++--- drivers/mfd/rn5t618.c | 25 ++++++++++++++++------- include/linux/mfd/rn5t618.h | 12 +++++++++++ 4 files changed, 45 insertions(+), 18 deletions(-) diff --git a/Documentation/devicetree/bindings/mfd/rn5t618.txt b/Documentation/devicetree/bindings/mfd/rn5t618.txt index 937785a..9e6770b 100644 --- a/Documentation/devicetree/bindings/mfd/rn5t618.txt +++ b/Documentation/devicetree/bindings/mfd/rn5t618.txt @@ -1,18 +1,21 @@ -* Ricoh RN5T618 PMIC +* Ricoh RN5T567/RN5T618 PMIC -Ricoh RN5T618 is a power management IC which integrates 3 step-down -DCDC converters, 7 low-dropout regulators, a Li-ion battery charger, -fuel gauge, ADC, GPIOs and a watchdog timer. It can be controlled -through a I2C interface. +Ricoh RN5T567/RN5T618 is a power management IC family which integrates +3 to 4 step-down DCDC converters, 7 low-dropout regulators, GPIOs and +a watchdog timer. The RN5T618 provides additionally a Li-ion battery +charger, fuel gauge and an ADC. It can be controlled through an I2C +interface. Required properties: - - compatible: should be "ricoh,rn5t618" + - compatible: must be one of + "ricoh,rn5t567" + "ricoh,rn5t618" - reg: the I2C slave address of the device Sub-nodes: - regulators: the node is required if the regulator functionality is - needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, LDO1, - LDO2, LDO3, LDO4, LDO5, LDORTC1 and LDORTC2. + needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, DCDC4 + (RN5T567), LDO1, LDO2, LDO3, LDO4, LDO5, LDORTC1 and LDORTC2. The common bindings for each individual regulator can be found in: Documentation/devicetree/bindings/regulator/regulator.txt diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 1bcf601..ff031a7 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -852,13 +852,14 @@ config MFD_RK808 including interrupts, RTC, LDO & DCDC regulators, and onkey. config MFD_RN5T618 - tristate "Ricoh RN5T5618 PMIC" + tristate "Ricoh RN5T567/618 PMIC" depends on I2C + depends on OF select MFD_CORE select REGMAP_I2C help - Say yes here to add support for the Ricoh RN5T618 PMIC. This - driver provides common support for accessing the device, + Say yes here to add support for the Ricoh RN5T567 or R5T618 PMIC. + This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c index 0ad51d7..c86160d 100644 --- a/drivers/mfd/rn5t618.c +++ b/drivers/mfd/rn5t618.c @@ -2,6 +2,7 @@ * MFD core driver for Ricoh RN5T618 PMIC * * Copyright (C) 2014 Beniamino Galvani + * Copyright (C) 2016 Toradex AG * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -15,6 +16,7 @@ #include #include #include +#include #include static const struct mfd_cell rn5t618_cells[] = { @@ -59,17 +61,32 @@ static void rn5t618_power_off(void) RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF); } +static const struct of_device_id rn5t618_of_match[] = { + { .compatible = "ricoh,rn5t567", .data = (void *)RN5T567 }, + { .compatible = "ricoh,rn5t618", .data = (void *)RN5T618 }, + { } +}; +MODULE_DEVICE_TABLE(of, rn5t618_of_match); + static int rn5t618_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { + const struct of_device_id *of_id; struct rn5t618 *priv; int ret; + of_id = of_match_device(rn5t618_of_match, &i2c->dev); + if (!of_id) { + dev_err(&i2c->dev, "Failed to find matching DT ID\n"); + return -EINVAL; + } + priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; i2c_set_clientdata(i2c, priv); + priv->variant = (long)of_id->data; priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config); if (IS_ERR(priv->regmap)) { @@ -105,12 +122,6 @@ static int rn5t618_i2c_remove(struct i2c_client *i2c) return 0; } -static const struct of_device_id rn5t618_of_match[] = { - { .compatible = "ricoh,rn5t618" }, - { } -}; -MODULE_DEVICE_TABLE(of, rn5t618_of_match); - static const struct i2c_device_id rn5t618_i2c_id[] = { { } }; @@ -129,5 +140,5 @@ static struct i2c_driver rn5t618_i2c_driver = { module_i2c_driver(rn5t618_i2c_driver); MODULE_AUTHOR("Beniamino Galvani "); -MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver"); +MODULE_DESCRIPTION("Ricoh RN5T567/618 MFD driver"); MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h index c72d534..54179c2 100644 --- a/include/linux/mfd/rn5t618.h +++ b/include/linux/mfd/rn5t618.h @@ -20,6 +20,7 @@ #define RN5T618_OTPVER 0x01 #define RN5T618_IODAC 0x02 #define RN5T618_VINDAC 0x03 +#define RN5T618_OUT32KEN 0x05 #define RN5T618_CPUCNT 0x06 #define RN5T618_PSWR 0x07 #define RN5T618_PONHIS 0x09 @@ -38,6 +39,7 @@ #define RN5T618_DC1_SLOT 0x16 #define RN5T618_DC2_SLOT 0x17 #define RN5T618_DC3_SLOT 0x18 +#define RN5T618_DC4_SLOT 0x19 #define RN5T618_LDO1_SLOT 0x1b #define RN5T618_LDO2_SLOT 0x1c #define RN5T618_LDO3_SLOT 0x1d @@ -54,12 +56,16 @@ #define RN5T618_DC2CTL2 0x2f #define RN5T618_DC3CTL 0x30 #define RN5T618_DC3CTL2 0x31 +#define RN5T618_DC4CTL 0x32 +#define RN5T618_DC4CTL2 0x33 #define RN5T618_DC1DAC 0x36 #define RN5T618_DC2DAC 0x37 #define RN5T618_DC3DAC 0x38 +#define RN5T618_DC4DAC 0x39 #define RN5T618_DC1DAC_SLP 0x3b #define RN5T618_DC2DAC_SLP 0x3c #define RN5T618_DC3DAC_SLP 0x3d +#define RN5T618_DC4DAC_SLP 0x3e #define RN5T618_DCIREN 0x40 #define RN5T618_DCIRQ 0x41 #define RN5T618_DCIRMON 0x42 @@ -221,8 +227,14 @@ enum { RN5T618_REG_NUM, }; +enum { + RN5T567 = 0, + RN5T618, +}; + struct rn5t618 { struct regmap *regmap; + long variant; }; #endif /* __LINUX_MFD_RN5T618_H */