From patchwork Thu Jul 14 06:42:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChiYuan Huang X-Patchwork-Id: 12917345 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26228C433EF for ; Thu, 14 Jul 2022 06:42:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235107AbiGNGmr (ORCPT ); Thu, 14 Jul 2022 02:42:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234633AbiGNGmq (ORCPT ); Thu, 14 Jul 2022 02:42:46 -0400 Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CBDA01F2F8; Wed, 13 Jul 2022 23:42:45 -0700 (PDT) Received: by mail-pf1-x431.google.com with SMTP id j3so1023910pfb.6; Wed, 13 Jul 2022 23:42:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=V08YmIparQ/n84vySMXu3G2yt20mKIem0IYynq0lIhc=; b=ENvKkVGWqWVdMTbGzGm2itH79EzeePHb3i9QINFIp8y8yVb57k7fSNw8auLQ2FC1II P5q0h4pZu/+m5QarAGiQQhhYAg9jIeHTniT7GnBICJkHgVXMaK8FcAZf+43xFItUZ/Yf Kpbz1ksCNWLAWSdmQ7oxKE4PQdRhAxm9q6/T1olC6aQ7PDKylYDZCIJF0jmhhQ8uvHrG MeKH9HlFk8v9GSRsPOA5YVaEwCpHnLPxFXf7ghDf1hziFBaRXtxbc48lBnPAyZZzpeLj 0twaAFRNW6W30Vn6y0WtJdTCtadjJNB/OohiP/9PuOc5S8E6V6EJCK8citgdYxIbxDA7 kz5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=V08YmIparQ/n84vySMXu3G2yt20mKIem0IYynq0lIhc=; b=BY+njANgcU9vNVZWGYihgJAZDl/kvgXJI6lUCnPR/oZX3cKVzkSSXV8POKMmcEEcM6 TvScR1SLAduKD1bdhTqa3bvH9P3HgvCjDJ8g1JJJV7sxTL0b+jhQY3nHW3X08BbNGveq 3yeyRxkGysA2MQGI6F2ELduOKwtp2/4S6s9Sq0Qb4Ramqdw7hzREcunJSzAHOo88Vz67 jOd2aIN4MHgtDf2RMA8UAsIU6U6INIztu3SScgW9k6u+jO0igDjjR6djohHhr3ZV6K1o vO/FVPrsp2O50ElQt9XV0bXK+Cxy6DtDwMEQMuWCbMvN/ApJl/NAZFN8Cfm6cVoMvRAQ 9wug== X-Gm-Message-State: AJIora9VzEb1lzzJYiSZutX7amNpMeCtMVrNpWHhWNWmX2tiBZM/sGNf K46afztKrqYDDaeONKUDflc= X-Google-Smtp-Source: AGRyM1tF+/4UqXDvpyKcqOBdc1Qreqpwz8R/g900i5zqHHDOJ2lhXzugzVaASNUexJUlF5mlv3rFHw== X-Received: by 2002:a63:ee14:0:b0:414:1a88:3b96 with SMTP id e20-20020a63ee14000000b004141a883b96mr6183424pgi.364.1657780965091; Wed, 13 Jul 2022 23:42:45 -0700 (PDT) Received: from localhost.localdomain ([2402:7500:486:199:217d:a3c8:f1ea:4115]) by smtp.gmail.com with ESMTPSA id nt14-20020a17090b248e00b001ef82e5f5aesm616291pjb.47.2022.07.13.23.42.41 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 13 Jul 2022 23:42:44 -0700 (PDT) From: cy_huang To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, lee.jones@linaro.org, broonie@kernel.org, dmitry.torokhov@gmail.com Cc: lgirdwood@gmail.com, cy_huang@richtek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: [PATCH v3 2/3] mfd: rt5120: Add Richtek PMIC support Date: Thu, 14 Jul 2022 14:42:16 +0800 Message-Id: <1657780937-20891-3-git-send-email-u0084500@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1657780937-20891-1-git-send-email-u0084500@gmail.com> References: <1657780937-20891-1-git-send-email-u0084500@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: ChiYuan Huang Add Richtek RT5120 PMIC I2C driver. Signed-off-by: ChiYuan Huang --- Since v3: - Use a 'dev' variable and dev_err_probe to decrease the LOC in mfd. --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/rt5120.c | 121 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 134 insertions(+) create mode 100644 drivers/mfd/rt5120.c diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 3b59456..866619c 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1127,6 +1127,18 @@ config MFD_RT5033 sub-devices like charger, fuel gauge, flash LED, current source, LDO and Buck. +config MFD_RT5120 + tristate "Richtek RT5120 Power Management IC" + depends on I2C + select MFD_CORE + select REGMAP_I2C + select REGMAP_IRQ + help + The enables support for Richtek RT5120 PMIC. It includes four high + efficiency buck converters and one LDO voltage regulator. The device + is targeted at providing the CPU voltage, memory, I/O and peripheral + power rails in home entertainment devices. + config MFD_RC5T583 bool "Ricoh RC5T583 Power Management system device" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 858cacf..27e8add 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -234,6 +234,7 @@ obj-$(CONFIG_MFD_HI655X_PMIC) += hi655x-pmic.o obj-$(CONFIG_MFD_DLN2) += dln2.o obj-$(CONFIG_MFD_RT4831) += rt4831.o obj-$(CONFIG_MFD_RT5033) += rt5033.o +obj-$(CONFIG_MFD_RT5120) += rt5120.o obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o diff --git a/drivers/mfd/rt5120.c b/drivers/mfd/rt5120.c new file mode 100644 index 00000000..12372fa --- /dev/null +++ b/drivers/mfd/rt5120.c @@ -0,0 +1,121 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include +#include +#include +#include +#include +#include + +#define RT5120_REG_INTENABLE 0x1D +#define RT5120_REG_INTSTAT 0x1E +#define RT5120_REG_FZCMODE 0x44 + +#define RT5120_INT_HOTDIE 0 +#define RT5120_INT_PWRKEY_REL 5 +#define RT5120_INT_PWRKEY_PRESS 6 + +static const struct regmap_range rt5120_rd_yes_ranges[] = { + regmap_reg_range(0x03, 0x13), + regmap_reg_range(0x1c, 0x20), + regmap_reg_range(0x44, 0x44) +}; + +static const struct regmap_range rt5120_wr_yes_ranges[] = { + regmap_reg_range(0x06, 0x13), + regmap_reg_range(0x1c, 0x20), + regmap_reg_range(0x44, 0x44) +}; + +static const struct regmap_access_table rt5120_rd_table = { + .yes_ranges = rt5120_rd_yes_ranges, + .n_yes_ranges = ARRAY_SIZE(rt5120_rd_yes_ranges), +}; + +static const struct regmap_access_table rt5120_wr_table = { + .yes_ranges = rt5120_wr_yes_ranges, + .n_yes_ranges = ARRAY_SIZE(rt5120_wr_yes_ranges), +}; + +static const struct regmap_config rt5120_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RT5120_REG_FZCMODE, + + .wr_table = &rt5120_wr_table, + .rd_table = &rt5120_rd_table, +}; + +static const struct regmap_irq rt5120_irqs[] = { + REGMAP_IRQ_REG_LINE(RT5120_INT_HOTDIE, 8), + REGMAP_IRQ_REG_LINE(RT5120_INT_PWRKEY_REL, 8), + REGMAP_IRQ_REG_LINE(RT5120_INT_PWRKEY_PRESS, 8) +}; + +static const struct regmap_irq_chip rt5120_irq_chip = { + .name = "rt5120-pmic", + .status_base = RT5120_REG_INTSTAT, + .mask_base = RT5120_REG_INTENABLE, + .ack_base = RT5120_REG_INTSTAT, + .mask_invert = true, + .use_ack = true, + .num_regs = 1, + .irqs = rt5120_irqs, + .num_irqs = ARRAY_SIZE(rt5120_irqs), +}; + +static const struct resource rt5120_regulator_resources[] = { + DEFINE_RES_IRQ(RT5120_INT_HOTDIE) +}; + +static const struct resource rt5120_pwrkey_resources[] = { + DEFINE_RES_IRQ_NAMED(RT5120_INT_PWRKEY_PRESS, "pwrkey-press"), + DEFINE_RES_IRQ_NAMED(RT5120_INT_PWRKEY_REL, "pwrkey-release") +}; + +static const struct mfd_cell rt5120_devs[] = { + MFD_CELL_RES("rt5120-regulator", rt5120_regulator_resources), + MFD_CELL_OF("rt5120-pwrkey", rt5120_pwrkey_resources, NULL, 0, 0, + "richtek,rt5120-pwrkey") +}; + +static int rt5120_probe(struct i2c_client *i2c) +{ + struct device *dev = &i2c->dev; + struct regmap *regmap; + struct regmap_irq_chip_data *irq_data; + int ret; + + regmap = devm_regmap_init_i2c(i2c, &rt5120_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), + "Failed to init regmap\n"); + + ret = devm_regmap_add_irq_chip(dev, regmap, i2c->irq, IRQF_ONESHOT, 0, + &rt5120_irq_chip, &irq_data); + if (ret) + return dev_err_probe(dev, ret, "Failed to add irq chip\n"); + + return devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO, rt5120_devs, + ARRAY_SIZE(rt5120_devs), NULL, 0, + regmap_irq_get_domain(irq_data)); +} + +static const struct of_device_id rt5120_device_match_table[] = { + { .compatible = "richtek,rt5120" }, + {} +}; +MODULE_DEVICE_TABLE(of, rt5120_device_match_table); + +static struct i2c_driver rt5120_driver = { + .driver = { + .name = "rt5120", + .of_match_table = rt5120_device_match_table, + }, + .probe_new = rt5120_probe, +}; +module_i2c_driver(rt5120_driver); + +MODULE_AUTHOR("ChiYuan Huang "); +MODULE_DESCRIPTION("Richtek RT5120 I2C driver"); +MODULE_LICENSE("GPL v2");