From patchwork Tue Sep 29 08:16:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 11805207 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 344E36CB for ; Tue, 29 Sep 2020 08:16:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 203F420773 for ; Tue, 29 Sep 2020 08:16:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726944AbgI2IQn (ORCPT ); Tue, 29 Sep 2020 04:16:43 -0400 Received: from mail-lf1-f67.google.com ([209.85.167.67]:41354 "EHLO mail-lf1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725786AbgI2IQn (ORCPT ); Tue, 29 Sep 2020 04:16:43 -0400 Received: by mail-lf1-f67.google.com with SMTP id y17so4448770lfa.8; Tue, 29 Sep 2020 01:16:40 -0700 (PDT) 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:user-agent; bh=33zUQ/WVhL5VzQKRvtiHaWzjDSnKb8qq+prTj9Ckr2c=; b=UfekW4L6Ne50x4gNkTcvdhBud5oQIUYOa3ntEk4CdwMltfLL6QottDP4X2ntVgEo6S Zwpc47XJ4oaC3e3pn9HkYZbOEEUJC0NRq3ou6RU36ykzHOChzojZCU7+t2TD0+ncRjZA AXJRWdVn7FjsIwpCaMghxGjE0gJpuKQpfl6MCnewxWzJEiJ8g01lCneWIVE+WT0v+Ule Y0/pP4YxVMzbaCNIg6rGxsfs4g44TCFbPLhhWWtVbEzvjwhSln9gLhEbVtZH3X6dSXs1 7nc+3hUQqY2HYo6S7FTMN41qNz1En/pphhyTdGaDY75/4pbTzxtCEX3gTQtxunA1lX+j ddPg== X-Gm-Message-State: AOAM5331P/qgNreE9hgFsyInYd5jZW5OY93+CqYkATyuRXhwxVG+jGGx BFrKO/Cu5O7XMm8uPh37dq4= X-Google-Smtp-Source: ABdhPJz2EvcI0fr/PM819dOL+jXCBt8VcsBs5BKRqKPIZ2GhBFB65qTH+q5dVDKN7RaGwqzIZpm/Tg== X-Received: by 2002:a05:6512:1142:: with SMTP id m2mr716135lfg.22.1601367399245; Tue, 29 Sep 2020 01:16:39 -0700 (PDT) Received: from localhost.localdomain ([213.255.186.46]) by smtp.gmail.com with ESMTPSA id z12sm291497ljc.17.2020.09.29.01.16.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 01:16:38 -0700 (PDT) Date: Tue, 29 Sep 2020 11:16:27 +0300 From: Matti Vaittinen To: mazziesaccount@gmail.com, matti.vaittinen@fi.rohmeurope.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 v3 2/4] mfd: Support ROHM BD9576MUF and BD9573MUF Message-ID: <0891b4adb628cf448fc68145f701bc865137e149.1601366711.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) 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 | 130 +++++++++++++++++++++++++++++++ include/linux/mfd/rohm-bd957x.h | 59 ++++++++++++++ include/linux/mfd/rohm-generic.h | 2 + 5 files changed, 203 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 33df0837ab41..e8275526818a 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1975,6 +1975,17 @@ 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 a60e5f835283..6ad33ccb35f0 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -260,6 +260,7 @@ 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..a23ded510209 --- /dev/null +++ b/drivers/mfd/rohm-bd9576.c @@ -0,0 +1,130 @@ +// 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[] = { + { + .range_min = BD957X_REG_SMRB_ASSERT, + .range_max = BD957X_REG_SMRB_ASSERT, + }, + { + .range_min = BD957X_REG_PMIC_INTERNAL_STAT, + .range_max = BD957X_REG_PMIC_INTERNAL_STAT, + }, + { + .range_min = BD957X_REG_INT_THERM_STAT, + .range_max = BD957X_REG_INT_THERM_STAT, + }, + { + .range_min = BD957X_REG_INT_OVP_STAT, + .range_max = BD957X_REG_INT_SYS_STAT, + }, { + .range_min = BD957X_REG_INT_MAIN_STAT, + .range_max = 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 int chip_type; + + chip_type = (unsigned int)(uintptr_t) + 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 };