From patchwork Thu Nov 5 11:38:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 11883987 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B4C01174A for ; Thu, 5 Nov 2020 11:40:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9182F2083B for ; Thu, 5 Nov 2020 11:40:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730375AbgKELjy (ORCPT ); Thu, 5 Nov 2020 06:39:54 -0500 Received: from mail-lf1-f67.google.com ([209.85.167.67]:43174 "EHLO mail-lf1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730373AbgKELiV (ORCPT ); Thu, 5 Nov 2020 06:38:21 -0500 Received: by mail-lf1-f67.google.com with SMTP id l28so1789616lfp.10; Thu, 05 Nov 2020 03:38:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=ZnJmOq0W/LJqpBKibmhM+AXETLmllcJOQN8ACYmyUUs=; b=WKJ6UqvO6QDZ5wlBQrsHFXi9Eb571H/wD8XaBc6twzwqiUew8Hu19Mi5Lms2ZtJ45U OPAmdzZguRjcaMe8koLbq7/kY2HQgXM2uPZqFNLzy569F+u2fK3KDj//2D7TzJCqgO1A o48P8SOF0Zq0T4v/9/ClVHDeYMh4DiqhcIW01sSLDNRH5NQSciJ3+sfwgLNLENy5PdpF DTyh9dK504HIWD/L2FP7SFuJt2Ko43IF9We1cMW0HG28qaT2jpdEZI6IILyNah1v12Vo d3DIafaTliKUZaXVd6TDGnR3ydVWCfrh+SOE7rO9u0SAXjZKebB8n2w6ahEkAFy+Prlf nlAw== X-Gm-Message-State: AOAM530SLH5mWkoJomP13azEpM9f+qkXSXuFG9d4k6JvCLTJzA4QL+KJ bWxKVlNnegbL9kyhKyREw04= X-Google-Smtp-Source: ABdhPJxuNQu+xgdMjLwZakUhz+nhRskeS7D5CKVFzpXYURfrtFJsos12QWQJkQQkbXw0gKpx+n2Opg== X-Received: by 2002:a05:6512:401:: with SMTP id u1mr869241lfk.210.1604576297806; Thu, 05 Nov 2020 03:38:17 -0800 (PST) Received: from localhost.localdomain (62-78-225-252.bb.dnainternet.fi. [62.78.225.252]) by smtp.gmail.com with ESMTPSA id l25sm155249lfc.152.2020.11.05.03.38.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Nov 2020 03:38:17 -0800 (PST) Date: Thu, 5 Nov 2020 13:38:08 +0200 From: Matti Vaittinen To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com Cc: Lee Jones , Rob Herring , Matti Vaittinen , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-watchdog@vger.kernel.org Subject: [PATCH v5 2/4] mfd: Support ROHM BD9576MUF and BD9573MUF Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Add core support for ROHM BD9576MUF and BD9573MUF PMICs which are mainly used to power the R-Car series processors. Signed-off-by: Matti Vaittinen --- drivers/mfd/Kconfig | 11 ++++ drivers/mfd/Makefile | 1 + drivers/mfd/rohm-bd9576.c | 108 +++++++++++++++++++++++++++++++ include/linux/mfd/rohm-bd957x.h | 59 +++++++++++++++++ include/linux/mfd/rohm-generic.h | 2 + 5 files changed, 181 insertions(+) create mode 100644 drivers/mfd/rohm-bd9576.c create mode 100644 include/linux/mfd/rohm-bd957x.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 8b99a13669bf..dcb2b14a570e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -2010,6 +2010,17 @@ config MFD_ROHM_BD71828 Also included is a Coulomb counter, a real-time clock (RTC), and a 32.768 kHz clock gate. +config MFD_ROHM_BD957XMUF + tristate "ROHM BD9576MUF and BD9573MUF Power Management ICs" + depends on I2C=y + depends on OF + select REGMAP_I2C + select MFD_CORE + help + Select this option to get support for the ROHM BD9576MUF and + BD9573MUF Power Management ICs. BD9576 and BD9573 are primarily + designed to be used to power R-Car series processors. + config MFD_STM32_LPTIMER tristate "Support for STM32 Low-Power Timer" depends on (ARCH_STM32 && OF) || COMPILE_TEST diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 1780019d2474..837f68c9f336 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -261,6 +261,7 @@ obj-$(CONFIG_RAVE_SP_CORE) += rave-sp.o obj-$(CONFIG_MFD_ROHM_BD70528) += rohm-bd70528.o obj-$(CONFIG_MFD_ROHM_BD71828) += rohm-bd71828.o obj-$(CONFIG_MFD_ROHM_BD718XX) += rohm-bd718x7.o +obj-$(CONFIG_MFD_ROHM_BD957XMUF) += rohm-bd9576.o obj-$(CONFIG_MFD_STMFX) += stmfx.o obj-$(CONFIG_MFD_KHADAS_MCU) += khadas-mcu.o diff --git a/drivers/mfd/rohm-bd9576.c b/drivers/mfd/rohm-bd9576.c new file mode 100644 index 000000000000..f4dd9e438427 --- /dev/null +++ b/drivers/mfd/rohm-bd9576.c @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +// +// Copyright (C) 2020 ROHM Semiconductors +// +// ROHM BD9576MUF and BD9573MUF PMIC driver + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static struct mfd_cell bd9573_mfd_cells[] = { + { .name = "bd9573-pmic", }, + { .name = "bd9576-wdt", }, +}; + +static struct mfd_cell bd9576_mfd_cells[] = { + { .name = "bd9576-pmic", }, + { .name = "bd9576-wdt", }, +}; + +static const struct regmap_range volatile_ranges[] = { + regmap_reg_range(BD957X_REG_SMRB_ASSERT, BD957X_REG_SMRB_ASSERT), + regmap_reg_range(BD957X_REG_PMIC_INTERNAL_STAT, + BD957X_REG_PMIC_INTERNAL_STAT), + regmap_reg_range(BD957X_REG_INT_THERM_STAT, BD957X_REG_INT_THERM_STAT), + regmap_reg_range(BD957X_REG_INT_OVP_STAT, BD957X_REG_INT_SYS_STAT), + regmap_reg_range(BD957X_REG_INT_MAIN_STAT, BD957X_REG_INT_MAIN_STAT), +}; + +static const struct regmap_access_table volatile_regs = { + .yes_ranges = &volatile_ranges[0], + .n_yes_ranges = ARRAY_SIZE(volatile_ranges), +}; + +static struct regmap_config bd957x_regmap = { + .reg_bits = 8, + .val_bits = 8, + .volatile_table = &volatile_regs, + .max_register = BD957X_MAX_REGISTER, + .cache_type = REGCACHE_RBTREE, +}; + +static int bd957x_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + int ret; + struct regmap *regmap; + struct mfd_cell *mfd; + int cells; + unsigned long chip_type; + + chip_type = (unsigned long)of_device_get_match_data(&i2c->dev); + + switch (chip_type) { + case ROHM_CHIP_TYPE_BD9576: + mfd = bd9576_mfd_cells; + cells = ARRAY_SIZE(bd9576_mfd_cells); + break; + case ROHM_CHIP_TYPE_BD9573: + mfd = bd9573_mfd_cells; + cells = ARRAY_SIZE(bd9573_mfd_cells); + break; + default: + dev_err(&i2c->dev, "Unknown device type"); + return -EINVAL; + } + + regmap = devm_regmap_init_i2c(i2c, &bd957x_regmap); + if (IS_ERR(regmap)) { + dev_err(&i2c->dev, "Failed to initialize Regmap\n"); + return PTR_ERR(regmap); + } + + ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO, mfd, cells, + NULL, 0, NULL); + if (ret) + dev_err(&i2c->dev, "Failed to create subdevices\n"); + + return ret; +} + +static const struct of_device_id bd957x_of_match[] = { + { .compatible = "rohm,bd9576", .data = (void *)ROHM_CHIP_TYPE_BD9576, }, + { .compatible = "rohm,bd9573", .data = (void *)ROHM_CHIP_TYPE_BD9573, }, + { }, +}; +MODULE_DEVICE_TABLE(of, bd957x_of_match); + +static struct i2c_driver bd957x_drv = { + .driver = { + .name = "rohm-bd957x", + .of_match_table = bd957x_of_match, + }, + .probe = &bd957x_i2c_probe, +}; +module_i2c_driver(bd957x_drv); + +MODULE_AUTHOR("Matti Vaittinen "); +MODULE_DESCRIPTION("ROHM BD9576MUF and BD9573MUF Power Management IC driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/rohm-bd957x.h b/include/linux/mfd/rohm-bd957x.h new file mode 100644 index 000000000000..3e7ca6fe5d4f --- /dev/null +++ b/include/linux/mfd/rohm-bd957x.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* Copyright (C) 2020 ROHM Semiconductors */ + +#ifndef __LINUX_MFD_BD957X_H__ +#define __LINUX_MFD_BD957X_H__ + +enum { + BD957X_VD50, + BD957X_VD18, + BD957X_VDDDR, + BD957X_VD10, + BD957X_VOUTL1, + BD957X_VOUTS1, +}; + +#define BD957X_REG_SMRB_ASSERT 0x15 +#define BD957X_REG_PMIC_INTERNAL_STAT 0x20 +#define BD957X_REG_INT_THERM_STAT 0x23 +#define BD957X_REG_INT_THERM_MASK 0x24 +#define BD957X_REG_INT_OVP_STAT 0x25 +#define BD957X_REG_INT_SCP_STAT 0x26 +#define BD957X_REG_INT_OCP_STAT 0x27 +#define BD957X_REG_INT_OVD_STAT 0x28 +#define BD957X_REG_INT_UVD_STAT 0x29 +#define BD957X_REG_INT_UVP_STAT 0x2a +#define BD957X_REG_INT_SYS_STAT 0x2b +#define BD957X_REG_INT_SYS_MASK 0x2c +#define BD957X_REG_INT_MAIN_STAT 0x30 +#define BD957X_REG_INT_MAIN_MASK 0x31 + +#define BD957X_REG_WDT_CONF 0x16 + +#define BD957X_REG_POW_TRIGGER1 0x41 +#define BD957X_REG_POW_TRIGGER2 0x42 +#define BD957X_REG_POW_TRIGGER3 0x43 +#define BD957X_REG_POW_TRIGGER4 0x44 +#define BD957X_REG_POW_TRIGGERL1 0x45 +#define BD957X_REG_POW_TRIGGERS1 0x46 + +#define BD957X_REGULATOR_EN_MASK 0xff +#define BD957X_REGULATOR_DIS_VAL 0xff + +#define BD957X_VSEL_REG_MASK 0xff + +#define BD957X_MASK_VOUT1_TUNE 0x87 +#define BD957X_MASK_VOUT2_TUNE 0x87 +#define BD957X_MASK_VOUT3_TUNE 0x1f +#define BD957X_MASK_VOUT4_TUNE 0x1f +#define BD957X_MASK_VOUTL1_TUNE 0x87 + +#define BD957X_REG_VOUT1_TUNE 0x50 +#define BD957X_REG_VOUT2_TUNE 0x53 +#define BD957X_REG_VOUT3_TUNE 0x56 +#define BD957X_REG_VOUT4_TUNE 0x59 +#define BD957X_REG_VOUTL1_TUNE 0x5c + +#define BD957X_MAX_REGISTER 0x61 + +#endif diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h index 4283b5b33e04..58b4f1a0f4af 100644 --- a/include/linux/mfd/rohm-generic.h +++ b/include/linux/mfd/rohm-generic.h @@ -12,6 +12,8 @@ enum rohm_chip_type { ROHM_CHIP_TYPE_BD71847, ROHM_CHIP_TYPE_BD70528, ROHM_CHIP_TYPE_BD71828, + ROHM_CHIP_TYPE_BD9576, + ROHM_CHIP_TYPE_BD9573, ROHM_CHIP_TYPE_AMOUNT };