From patchwork Mon Jan 11 12:20:16 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Feng X-Patchwork-Id: 59462 Delivered-To: patch@linaro.org Received: by 10.112.130.2 with SMTP id oa2csp2074325lbb; Mon, 11 Jan 2016 04:21:50 -0800 (PST) X-Received: by 10.98.93.132 with SMTP id n4mr161566pfj.88.1452514909605; Mon, 11 Jan 2016 04:21:49 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id wf3si20468543pac.218.2016.01.11.04.21.47; Mon, 11 Jan 2016 04:21:49 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932944AbcAKMVp (ORCPT + 29 others); Mon, 11 Jan 2016 07:21:45 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:11231 "EHLO szxga03-in.huawei.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1759227AbcAKMVX (ORCPT ); Mon, 11 Jan 2016 07:21:23 -0500 Received: from 172.24.1.47 (EHLO szxeml431-hub.china.huawei.com) ([172.24.1.47]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id BUI65839; Mon, 11 Jan 2016 20:20:33 +0800 (CST) Received: from vm163-62.huawei.com (10.184.163.62) by szxeml431-hub.china.huawei.com (10.82.67.208) with Microsoft SMTP Server id 14.3.235.1; Mon, 11 Jan 2016 20:20:22 +0800 From: Chen Feng To: , , , , , , , , , , , , , CC: , , , , Subject: [PATCH v5 4/5] regulator: add regulator driver of hi655x pmic Date: Mon, 11 Jan 2016 20:20:16 +0800 Message-ID: <1452514817-118311-5-git-send-email-puck.chen@hisilicon.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1452514817-118311-1-git-send-email-puck.chen@hisilicon.com> References: <1452514817-118311-1-git-send-email-puck.chen@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.184.163.62] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020205.56939E12.011C, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 82a32e9b03e4e923fc46400bf3151c88 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add regulator support for hi655x pmic Signed-off-by: Chen Feng Signed-off-by: Fei Wang Signed-off-by: Xinwei Kong --- drivers/regulator/Kconfig | 8 ++ drivers/regulator/Makefile | 1 + drivers/regulator/hi655x-regulator.c | 256 +++++++++++++++++++++++++++++++++++ 3 files changed, 265 insertions(+) create mode 100644 drivers/regulator/hi655x-regulator.c -- 1.9.1 diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 8df0b0e..c00c915 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -261,6 +261,14 @@ config REGULATOR_HI6421 21 general purpose LDOs, 3 dedicated LDOs, and 5 BUCKs. All of them come with support to either ECO (idle) or sleep mode. +config REGULATOR_HI655X + tristate "Hisilicon HI655X PMIC regulators support" + depends on ARCH_HISI || (COMPILE_TEST && ARM64) + depends on MFD_HI655X_PMIC && OF + help + This driver provides support for the voltage regulators of the + Hisilicon Hi655x PMIC device. + config REGULATOR_ISL9305 tristate "Intersil ISL9305 regulator" depends on I2C diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 0f81749..8e4db96 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o obj-$(CONFIG_REGULATOR_HI6421) += hi6421-regulator.o +obj-$(CONFIG_REGULATOR_HI655X) += hi655x-regulator.o obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o obj-$(CONFIG_REGULATOR_ISL9305) += isl9305.o obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o diff --git a/drivers/regulator/hi655x-regulator.c b/drivers/regulator/hi655x-regulator.c new file mode 100644 index 0000000..e8e9995 --- /dev/null +++ b/drivers/regulator/hi655x-regulator.c @@ -0,0 +1,256 @@ +/* + * Device driver for regulators in hi655x IC + * + * Copyright (c) 2016 Hisilicon. + * + * Chen Feng + * Fei Wang + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct hi655x_regulator { + unsigned int disable_reg; + unsigned int status_reg; + unsigned int ctrl_regs; + unsigned int ctrl_mask; + struct regulator_desc rdesc; +}; + +/* LDO7 & LDO10 */ +static const unsigned int ldo7_voltages[] = { + 1800000, 1850000, 2850000, 2900000, + 3000000, 3100000, 3200000, 3300000, +}; + +static const unsigned int ldo19_voltages[] = { + 1800000, 1850000, 1900000, 1750000, + 2800000, 2850000, 2900000, 3000000, +}; + +static const unsigned int ldo22_voltages[] = { + 900000, 1000000, 1050000, 1100000, + 1150000, 1175000, 1185000, 1200000, +}; + +enum hi655x_regulator_id { + HI655X_LDO0, + HI655X_LDO1, + HI655X_LDO2, + HI655X_LDO3, + HI655X_LDO4, + HI655X_LDO5, + HI655X_LDO6, + HI655X_LDO7, + HI655X_LDO8, + HI655X_LDO9, + HI655X_LDO10, + HI655X_LDO11, + HI655X_LDO12, + HI655X_LDO13, + HI655X_LDO14, + HI655X_LDO15, + HI655X_LDO16, + HI655X_LDO17, + HI655X_LDO18, + HI655X_LDO19, + HI655X_LDO20, + HI655X_LDO21, + HI655X_LDO22, +}; + +static int hi655x_is_enabled(struct regulator_dev *rdev) +{ + unsigned int value = 0; + + struct hi655x_regulator *regulator = rdev_get_drvdata(rdev); + + regmap_read(rdev->regmap, regulator->status_reg, &value); + return (value & BIT(regulator->ctrl_mask)); +} + +static int hi655x_disable(struct regulator_dev *rdev) +{ + int ret = 0; + + struct hi655x_regulator *regulator = rdev_get_drvdata(rdev); + + ret = regmap_write(rdev->regmap, regulator->disable_reg, + BIT(regulator->ctrl_mask)); + return ret; +} + +static struct regulator_ops hi655x_regulator_ops = { + .enable = regulator_enable_regmap, + .disable = hi655x_disable, + .is_enabled = hi655x_is_enabled, + .list_voltage = regulator_list_voltage_table, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +static struct regulator_ops hi655x_ldo_linear_ops = { + .enable = regulator_enable_regmap, + .disable = hi655x_disable, + .is_enabled = hi655x_is_enabled, + .list_voltage = regulator_list_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +#define HI655X_LDO(_ID, vreg, vmask, ereg, dreg, \ + sreg, cmask, vtable) { \ + .rdesc = { \ + .name = #_ID, \ + .ops = &hi655x_regulator_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = HI655X_##_ID, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(vtable), \ + .volt_table = vtable, \ + .vsel_reg = HI655X_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI655X_BUS_ADDR(ereg), \ + .enable_mask = cmask, \ + }, \ + .disable_reg = HI655X_BUS_ADDR(dreg), \ + .status_reg = HI655X_BUS_ADDR(sreg), \ + .ctrl_mask = cmask, \ +} + +#define HI655X_LDO_LINEAR(_ID, vreg, vmask, ereg, dreg, \ + sreg, cmask, minv, nvolt, vstep) { \ + .rdesc = { \ + .name = #_ID, \ + .ops = &hi655x_ldo_linear_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = HI655X_##_ID, \ + .owner = THIS_MODULE, \ + .min_uV = minv, \ + .n_voltages = nvolt, \ + .uV_step = vstep, \ + .uV_step = vstep, \ + .vsel_reg = HI655X_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI655X_BUS_ADDR(ereg), \ + .enable_mask = cmask, \ + }, \ + .disable_reg = HI655X_BUS_ADDR(dreg), \ + .status_reg = HI655X_BUS_ADDR(sreg), \ + .ctrl_mask = cmask, \ +} + +static struct hi655x_regulator regulators[] = { + HI655X_LDO_LINEAR(LDO2, 0x72, 0x07, 0x29, 0x2a, 0x2b, 0x01, + 2500000, 8, 100000), + HI655X_LDO(LDO7, 0x78, 0x07, 0x29, 0x2a, 0x2b, 0x06, ldo7_voltages), + HI655X_LDO(LDO10, 0x78, 0x07, 0x29, 0x2a, 0x2b, 0x01, ldo7_voltages), + HI655X_LDO_LINEAR(LDO13, 0x7e, 0x07, 0x2c, 0x2d, 0x2e, 0x04, + 1600000, 8, 50000), + HI655X_LDO_LINEAR(LDO14, 0x7f, 0x07, 0x2c, 0x2d, 0x2e, 0x05, + 2500000, 8, 100000), + HI655X_LDO_LINEAR(LDO15, 0x80, 0x07, 0x2c, 0x2d, 0x2e, 0x06, + 1600000, 8, 50000), + HI655X_LDO_LINEAR(LDO17, 0x82, 0x07, 0x2f, 0x30, 0x31, 0x00, + 2500000, 8, 100000), + HI655X_LDO(LDO19, 0x84, 0x07, 0x2f, 0x30, 0x31, 0x02, ldo19_voltages), + HI655X_LDO_LINEAR(LDO21, 0x86, 0x07, 0x2f, 0x30, 0x31, 0x04, + 1650000, 8, 50000), + HI655X_LDO(LDO22, 0x87, 0x07, 0x2f, 0x30, 0x31, 0x05, ldo22_voltages), +}; + +static struct of_regulator_match hi655x_regulator_match[] = { + { .name = "ldo2", .driver_data = (void *)HI655X_LDO0, }, + { .name = "ldo7", .driver_data = (void *)HI655X_LDO7, }, + { .name = "ldo10", .driver_data = (void *)HI655X_LDO10, }, + { .name = "ldo13", .driver_data = (void *)HI655X_LDO13, }, + { .name = "ldo14", .driver_data = (void *)HI655X_LDO14, }, + { .name = "ldo15", .driver_data = (void *)HI655X_LDO15, }, + { .name = "ldo17", .driver_data = (void *)HI655X_LDO17, }, + { .name = "ldo19", .driver_data = (void *)HI655X_LDO19, }, + { .name = "ldo21", .driver_data = (void *)HI655X_LDO21, }, + { .name = "ldo22", .driver_data = (void *)HI655X_LDO22, }, +}; + +static int hi655x_regulator_probe(struct platform_device *pdev) +{ + unsigned int i; + int ret; + struct hi655x_regulator *regulator; + struct hi655x_pmic *pmic; + struct regulator_config config = { }; + struct device *dev = &pdev->dev; + struct regulator_dev *rdev; + struct device_node *np; + + np = of_get_child_by_name(dev->parent->of_node, "regulators"); + if (!np) + return -ENODEV; + + ret = of_regulator_match(dev, np, + hi655x_regulator_match, + ARRAY_SIZE(hi655x_regulator_match)); + of_node_put(np); + if (ret < 0) { + dev_err(dev, "Error parsing regulator init data: %d\n", ret); + return ret; + } + + pmic = dev_get_drvdata(pdev->dev.parent); + if (!pmic) { + dev_err(dev, "no pmic in the regulator parent node\n"); + return -ENODEV; + } + + regulator = devm_kzalloc(dev, sizeof(*regulator), GFP_KERNEL); + if (!regulator) + return -ENOMEM; + + platform_set_drvdata(pdev, regulator); + + for (i = 0; i < ARRAY_SIZE(regulators); i++) { + config.dev = &pdev->dev; + config.driver_data = regulator; + config.regmap = pmic->regmap; + config.of_node = hi655x_regulator_match[i].of_node; + config.init_data = hi655x_regulator_match[i].init_data; + + /* register regulator with framework */ + rdev = devm_regulator_register(&pdev->dev, + ®ulators[i].rdesc, + &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register regulator %s\n", + regulator->rdesc.name); + return PTR_ERR(rdev); + } + } + return 0; +} + +static struct platform_driver hi655x_regulator_driver = { + .driver = { + .name = "hi655x-regulator", + }, + .probe = hi655x_regulator_probe, +}; +module_platform_driver(hi655x_regulator_driver); + +MODULE_AUTHOR("Chen Feng "); +MODULE_DESCRIPTION("Hisilicon hi655x regulator driver"); +MODULE_LICENSE("GPL v2");