From patchwork Mon Jul 18 12:46:42 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 9234559 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 C697D6075D for ; Mon, 18 Jul 2016 12:47:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B50A71FFC7 for ; Mon, 18 Jul 2016 12:47:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AA0102522B; Mon, 18 Jul 2016 12:47:34 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED 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 A77631FFC7 for ; Mon, 18 Jul 2016 12:47:33 +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 1bP7xM-0004HR-NK; Mon, 18 Jul 2016 12:47:32 +0000 Received: from mezzanine.sirena.org.uk ([2400:8900::f03c:91ff:fedb:4f4]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bP7x6-00045N-DA; Mon, 18 Jul 2016 12:47:20 +0000 Received: from debutante.sirena.org.uk ([2a01:348:6:8808:fab::3] helo=debutante) by mezzanine.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1bP7wb-0008Pf-Oz; Mon, 18 Jul 2016 12:46:48 +0000 Received: from broonie by debutante with local (Exim 4.87) (envelope-from ) id 1bP7wY-0001o9-Cf; Mon, 18 Jul 2016 13:46:42 +0100 From: Mark Brown To: Chen Zhong In-Reply-To: <1468845651-64011-2-git-send-email-john@phrozen.org> Message-Id: Date: Mon, 18 Jul 2016 13:46:42 +0100 X-SA-Exim-Connect-IP: 2a01:348:6:8808:fab::3 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Applied "regulator: mt6323: Add support for MT6323 regulator" to the regulator tree X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) X-Bad-Reply: In-Reply-To but no 'Re:' in Subject. X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160718_054716_799155_9DB04681 X-CRM114-Status: GOOD ( 23.99 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, Liam Girdwood , Mark Brown , linux-mediatek@lists.infradead.org, John Crispin , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The patch regulator: mt6323: Add support for MT6323 regulator has been applied to the regulator tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From 2fdf829236183e5be559a2b4d13c29926b79b2d4 Mon Sep 17 00:00:00 2001 From: Chen Zhong Date: Mon, 18 Jul 2016 14:40:51 +0200 Subject: [PATCH] regulator: mt6323: Add support for MT6323 regulator The MT6323 is a regulator found on boards based on MediaTek MT7623 and probably other SoCs. It is a so called pmic and connects as a slave to SoC using SPI, wrapped inside the pmic-wrapper. Signed-off-by: Chen Zhong Signed-off-by: John Crispin Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 9 + drivers/regulator/Makefile | 1 + drivers/regulator/mt6323-regulator.c | 425 +++++++++++++++++++++++++++++ include/linux/regulator/mt6323-regulator.h | 52 ++++ 4 files changed, 487 insertions(+) create mode 100644 drivers/regulator/mt6323-regulator.c create mode 100644 include/linux/regulator/mt6323-regulator.h diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 144cbf5b3e5a..53b30b46c1c5 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -498,6 +498,15 @@ config REGULATOR_MT6311 This driver supports the control of different power rails of device through regulator interface. +config REGULATOR_MT6323 + tristate "MediaTek MT6323 PMIC" + depends on MFD_MT6397 + help + Say y here to select this option to enable the power regulator of + MediaTek MT6323 PMIC. + This driver supports the control of different power rails of device + through regulator interface. + config REGULATOR_MT6397 tristate "MediaTek MT6397 PMIC" depends on MFD_MT6397 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 85a1d44a3939..f3da9eea9ab6 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o obj-$(CONFIG_REGULATOR_MT6311) += mt6311-regulator.o +obj-$(CONFIG_REGULATOR_MT6323) += mt6323-regulator.o obj-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o diff --git a/drivers/regulator/mt6323-regulator.c b/drivers/regulator/mt6323-regulator.c new file mode 100644 index 000000000000..927cc23b1c30 --- /dev/null +++ b/drivers/regulator/mt6323-regulator.c @@ -0,0 +1,425 @@ +/* + * Copyright (c) 2016 MediaTek Inc. + * Author: Chen Zhong + * + * 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 + +#define MT6323_LDO_MODE_NORMAL 0 +#define MT6323_LDO_MODE_LP 1 + +/* + * MT6323 regulators' information + * + * @desc: standard fields of regulator description. + * @qi: Mask for query enable signal status of regulators + * @vselon_reg: Register sections for hardware control mode of bucks + * @vselctrl_reg: Register for controlling the buck control mode. + * @vselctrl_mask: Mask for query buck's voltage control mode. + */ +struct mt6323_regulator_info { + struct regulator_desc desc; + u32 qi; + u32 vselon_reg; + u32 vselctrl_reg; + u32 vselctrl_mask; + u32 modeset_reg; + u32 modeset_mask; +}; + +#define MT6323_BUCK(match, vreg, min, max, step, volt_ranges, enreg, \ + vosel, vosel_mask, voselon, vosel_ctrl) \ +[MT6323_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .ops = &mt6323_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6323_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = (max - min)/step + 1, \ + .linear_ranges = volt_ranges, \ + .n_linear_ranges = ARRAY_SIZE(volt_ranges), \ + .vsel_reg = vosel, \ + .vsel_mask = vosel_mask, \ + .enable_reg = enreg, \ + .enable_mask = BIT(0), \ + }, \ + .qi = BIT(13), \ + .vselon_reg = voselon, \ + .vselctrl_reg = vosel_ctrl, \ + .vselctrl_mask = BIT(1), \ +} + +#define MT6323_LDO(match, vreg, ldo_volt_table, enreg, enbit, vosel, \ + vosel_mask, _modeset_reg, _modeset_mask) \ +[MT6323_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .ops = &mt6323_volt_table_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6323_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(ldo_volt_table), \ + .volt_table = ldo_volt_table, \ + .vsel_reg = vosel, \ + .vsel_mask = vosel_mask, \ + .enable_reg = enreg, \ + .enable_mask = BIT(enbit), \ + }, \ + .qi = BIT(15), \ + .modeset_reg = _modeset_reg, \ + .modeset_mask = _modeset_mask, \ +} + +#define MT6323_REG_FIXED(match, vreg, enreg, enbit, volt, \ + _modeset_reg, _modeset_mask) \ +[MT6323_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .ops = &mt6323_volt_fixed_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6323_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = 1, \ + .enable_reg = enreg, \ + .enable_mask = BIT(enbit), \ + .min_uV = volt, \ + }, \ + .qi = BIT(15), \ + .modeset_reg = _modeset_reg, \ + .modeset_mask = _modeset_mask, \ +} + +static const struct regulator_linear_range buck_volt_range1[] = { + REGULATOR_LINEAR_RANGE(700000, 0, 0x7f, 6250), +}; + +static const struct regulator_linear_range buck_volt_range2[] = { + REGULATOR_LINEAR_RANGE(1400000, 0, 0x7f, 12500), +}; + +static const struct regulator_linear_range buck_volt_range3[] = { + REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000), +}; + +static const u32 ldo_volt_table1[] = { + 3300000, 3400000, 3500000, 3600000, +}; + +static const u32 ldo_volt_table2[] = { + 1500000, 1800000, 2500000, 2800000, +}; + +static const u32 ldo_volt_table3[] = { + 1800000, 3300000, +}; + +static const u32 ldo_volt_table4[] = { + 3000000, 3300000, +}; + +static const u32 ldo_volt_table5[] = { + 1200000, 1300000, 1500000, 1800000, 2000000, 2800000, 3000000, 3300000, +}; + +static const u32 ldo_volt_table6[] = { + 1200000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 2000000, +}; + +static const u32 ldo_volt_table7[] = { + 1200000, 1300000, 1500000, 1800000, +}; + +static const u32 ldo_volt_table8[] = { + 1800000, 3000000, +}; + +static const u32 ldo_volt_table9[] = { + 1200000, 1350000, 1500000, 1800000, +}; + +static const u32 ldo_volt_table10[] = { + 1200000, 1300000, 1500000, 1800000, +}; + +static int mt6323_get_status(struct regulator_dev *rdev) +{ + int ret; + u32 regval; + struct mt6323_regulator_info *info = rdev_get_drvdata(rdev); + + ret = regmap_read(rdev->regmap, info->desc.enable_reg, ®val); + if (ret != 0) { + dev_err(&rdev->dev, "Failed to get enable reg: %d\n", ret); + return ret; + } + + return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF; +} + +static int mt6323_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + int ret, val = 0; + struct mt6323_regulator_info *info = rdev_get_drvdata(rdev); + + if (!info->modeset_mask) { + dev_err(&rdev->dev, "regulator %s doesn't support set_mode\n", + info->desc.name); + return -EINVAL; + } + + switch (mode) { + case REGULATOR_MODE_STANDBY: + val = MT6323_LDO_MODE_LP; + break; + case REGULATOR_MODE_NORMAL: + val = MT6323_LDO_MODE_NORMAL; + break; + default: + return -EINVAL; + } + + val <<= ffs(info->modeset_mask) - 1; + + ret = regmap_update_bits(rdev->regmap, info->modeset_reg, + info->modeset_mask, val); + + return ret; +} + +static unsigned int mt6323_ldo_get_mode(struct regulator_dev *rdev) +{ + unsigned int val; + unsigned int mode; + int ret; + struct mt6323_regulator_info *info = rdev_get_drvdata(rdev); + + if (!info->modeset_mask) { + dev_err(&rdev->dev, "regulator %s doesn't support get_mode\n", + info->desc.name); + return -EINVAL; + } + + ret = regmap_read(rdev->regmap, info->modeset_reg, &val); + if (ret < 0) + return ret; + + val &= info->modeset_mask; + val >>= ffs(info->modeset_mask) - 1; + + if (val & 0x1) + mode = REGULATOR_MODE_STANDBY; + else + mode = REGULATOR_MODE_NORMAL; + + return mode; +} + +static struct regulator_ops mt6323_volt_range_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_status = mt6323_get_status, +}; + +static struct regulator_ops mt6323_volt_table_ops = { + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_iterate, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_status = mt6323_get_status, + .set_mode = mt6323_ldo_set_mode, + .get_mode = mt6323_ldo_get_mode, +}; + +static struct regulator_ops mt6323_volt_fixed_ops = { + .list_voltage = regulator_list_voltage_linear, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_status = mt6323_get_status, + .set_mode = mt6323_ldo_set_mode, + .get_mode = mt6323_ldo_get_mode, +}; + +/* The array is indexed by id(MT6323_ID_XXX) */ +static struct mt6323_regulator_info mt6323_regulators[] = { + MT6323_BUCK("buck_vproc", VPROC, 700000, 1493750, 6250, + buck_volt_range1, MT6323_VPROC_CON7, MT6323_VPROC_CON9, 0x7f, + MT6323_VPROC_CON10, MT6323_VPROC_CON5), + MT6323_BUCK("buck_vsys", VSYS, 1400000, 2987500, 12500, + buck_volt_range2, MT6323_VSYS_CON7, MT6323_VSYS_CON9, 0x7f, + MT6323_VSYS_CON10, MT6323_VSYS_CON5), + MT6323_BUCK("buck_vpa", VPA, 500000, 3650000, 50000, + buck_volt_range3, MT6323_VPA_CON7, MT6323_VPA_CON9, + 0x3f, MT6323_VPA_CON10, MT6323_VPA_CON5), + MT6323_REG_FIXED("ldo_vtcxo", VTCXO, MT6323_ANALDO_CON1, 10, 2800000, + MT6323_ANALDO_CON1, 0x2), + MT6323_REG_FIXED("ldo_vcn28", VCN28, MT6323_ANALDO_CON19, 12, 2800000, + MT6323_ANALDO_CON20, 0x2), + MT6323_LDO("ldo_vcn33_bt", VCN33_BT, ldo_volt_table1, + MT6323_ANALDO_CON16, 7, MT6323_ANALDO_CON16, 0xC, + MT6323_ANALDO_CON21, 0x2), + MT6323_LDO("ldo_vcn33_wifi", VCN33_WIFI, ldo_volt_table1, + MT6323_ANALDO_CON17, 12, MT6323_ANALDO_CON16, 0xC, + MT6323_ANALDO_CON21, 0x2), + MT6323_REG_FIXED("ldo_va", VA, MT6323_ANALDO_CON2, 14, 2800000, + MT6323_ANALDO_CON2, 0x2), + MT6323_LDO("ldo_vcama", VCAMA, ldo_volt_table2, + MT6323_ANALDO_CON4, 15, MT6323_ANALDO_CON10, 0x60, -1, 0), + MT6323_REG_FIXED("ldo_vio28", VIO28, MT6323_DIGLDO_CON0, 14, 2800000, + MT6323_DIGLDO_CON0, 0x2), + MT6323_REG_FIXED("ldo_vusb", VUSB, MT6323_DIGLDO_CON2, 14, 3300000, + MT6323_DIGLDO_CON2, 0x2), + MT6323_LDO("ldo_vmc", VMC, ldo_volt_table3, + MT6323_DIGLDO_CON3, 12, MT6323_DIGLDO_CON24, 0x10, + MT6323_DIGLDO_CON3, 0x2), + MT6323_LDO("ldo_vmch", VMCH, ldo_volt_table4, + MT6323_DIGLDO_CON5, 14, MT6323_DIGLDO_CON26, 0x80, + MT6323_DIGLDO_CON5, 0x2), + MT6323_LDO("ldo_vemc3v3", VEMC3V3, ldo_volt_table4, + MT6323_DIGLDO_CON6, 14, MT6323_DIGLDO_CON27, 0x80, + MT6323_DIGLDO_CON6, 0x2), + MT6323_LDO("ldo_vgp1", VGP1, ldo_volt_table5, + MT6323_DIGLDO_CON7, 15, MT6323_DIGLDO_CON28, 0xE0, + MT6323_DIGLDO_CON7, 0x2), + MT6323_LDO("ldo_vgp2", VGP2, ldo_volt_table6, + MT6323_DIGLDO_CON8, 15, MT6323_DIGLDO_CON29, 0xE0, + MT6323_DIGLDO_CON8, 0x2), + MT6323_LDO("ldo_vgp3", VGP3, ldo_volt_table7, + MT6323_DIGLDO_CON9, 15, MT6323_DIGLDO_CON30, 0x60, + MT6323_DIGLDO_CON9, 0x2), + MT6323_REG_FIXED("ldo_vcn18", VCN18, MT6323_DIGLDO_CON11, 14, 1800000, + MT6323_DIGLDO_CON11, 0x2), + MT6323_LDO("ldo_vsim1", VSIM1, ldo_volt_table8, + MT6323_DIGLDO_CON13, 15, MT6323_DIGLDO_CON34, 0x20, + MT6323_DIGLDO_CON13, 0x2), + MT6323_LDO("ldo_vsim2", VSIM2, ldo_volt_table8, + MT6323_DIGLDO_CON14, 15, MT6323_DIGLDO_CON35, 0x20, + MT6323_DIGLDO_CON14, 0x2), + MT6323_REG_FIXED("ldo_vrtc", VRTC, MT6323_DIGLDO_CON15, 8, 2800000, + -1, 0), + MT6323_LDO("ldo_vcamaf", VCAMAF, ldo_volt_table5, + MT6323_DIGLDO_CON31, 15, MT6323_DIGLDO_CON32, 0xE0, + MT6323_DIGLDO_CON31, 0x2), + MT6323_LDO("ldo_vibr", VIBR, ldo_volt_table5, + MT6323_DIGLDO_CON39, 15, MT6323_DIGLDO_CON40, 0xE0, + MT6323_DIGLDO_CON39, 0x2), + MT6323_REG_FIXED("ldo_vrf18", VRF18, MT6323_DIGLDO_CON45, 15, 1825000, + MT6323_DIGLDO_CON45, 0x2), + MT6323_LDO("ldo_vm", VM, ldo_volt_table9, + MT6323_DIGLDO_CON47, 14, MT6323_DIGLDO_CON48, 0x30, + MT6323_DIGLDO_CON47, 0x2), + MT6323_REG_FIXED("ldo_vio18", VIO18, MT6323_DIGLDO_CON49, 14, 1800000, + MT6323_DIGLDO_CON49, 0x2), + MT6323_LDO("ldo_vcamd", VCAMD, ldo_volt_table10, + MT6323_DIGLDO_CON51, 14, MT6323_DIGLDO_CON52, 0x60, + MT6323_DIGLDO_CON51, 0x2), + MT6323_REG_FIXED("ldo_vcamio", VCAMIO, MT6323_DIGLDO_CON53, 14, 1800000, + MT6323_DIGLDO_CON53, 0x2), +}; + +static int mt6323_set_buck_vosel_reg(struct platform_device *pdev) +{ + struct mt6397_chip *mt6323 = dev_get_drvdata(pdev->dev.parent); + int i; + u32 regval; + + for (i = 0; i < MT6323_MAX_REGULATOR; i++) { + if (mt6323_regulators[i].vselctrl_reg) { + if (regmap_read(mt6323->regmap, + mt6323_regulators[i].vselctrl_reg, + ®val) < 0) { + dev_err(&pdev->dev, + "Failed to read buck ctrl\n"); + return -EIO; + } + + if (regval & mt6323_regulators[i].vselctrl_mask) { + mt6323_regulators[i].desc.vsel_reg = + mt6323_regulators[i].vselon_reg; + } + } + } + + return 0; +} + +static int mt6323_regulator_probe(struct platform_device *pdev) +{ + struct mt6397_chip *mt6323 = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = {}; + struct regulator_dev *rdev; + int i; + u32 reg_value; + + /* Query buck controller to select activated voltage register part */ + if (mt6323_set_buck_vosel_reg(pdev)) + return -EIO; + + /* Read PMIC chip revision to update constraints and voltage table */ + if (regmap_read(mt6323->regmap, MT6323_CID, ®_value) < 0) { + dev_err(&pdev->dev, "Failed to read Chip ID\n"); + return -EIO; + } + dev_info(&pdev->dev, "Chip ID = 0x%x\n", reg_value); + + for (i = 0; i < MT6323_MAX_REGULATOR; i++) { + config.dev = &pdev->dev; + config.driver_data = &mt6323_regulators[i]; + config.regmap = mt6323->regmap; + rdev = devm_regulator_register(&pdev->dev, + &mt6323_regulators[i].desc, &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register %s\n", + mt6323_regulators[i].desc.name); + return PTR_ERR(rdev); + } + } + return 0; +} + +static const struct platform_device_id mt6323_platform_ids[] = { + {"mt6323-regulator", 0}, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(platform, mt6323_platform_ids); + +static struct platform_driver mt6323_regulator_driver = { + .driver = { + .name = "mt6323-regulator", + }, + .probe = mt6323_regulator_probe, + .id_table = mt6323_platform_ids, +}; + +module_platform_driver(mt6323_regulator_driver); + +MODULE_AUTHOR("Chen Zhong "); +MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6397 PMIC"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/regulator/mt6323-regulator.h b/include/linux/regulator/mt6323-regulator.h new file mode 100644 index 000000000000..67011cd1ce55 --- /dev/null +++ b/include/linux/regulator/mt6323-regulator.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2016 MediaTek Inc. + * Author: Chen Zhong + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __LINUX_REGULATOR_MT6323_H +#define __LINUX_REGULATOR_MT6323_H + +enum { + MT6323_ID_VPROC = 0, + MT6323_ID_VSYS, + MT6323_ID_VPA, + MT6323_ID_VTCXO, + MT6323_ID_VCN28, + MT6323_ID_VCN33_BT, + MT6323_ID_VCN33_WIFI, + MT6323_ID_VA, + MT6323_ID_VCAMA, + MT6323_ID_VIO28 = 9, + MT6323_ID_VUSB, + MT6323_ID_VMC, + MT6323_ID_VMCH, + MT6323_ID_VEMC3V3, + MT6323_ID_VGP1, + MT6323_ID_VGP2, + MT6323_ID_VGP3, + MT6323_ID_VCN18, + MT6323_ID_VSIM1, + MT6323_ID_VSIM2, + MT6323_ID_VRTC, + MT6323_ID_VCAMAF, + MT6323_ID_VIBR, + MT6323_ID_VRF18, + MT6323_ID_VM, + MT6323_ID_VIO18, + MT6323_ID_VCAMD, + MT6323_ID_VCAMIO, + MT6323_ID_RG_MAX, +}; + +#define MT6323_MAX_REGULATOR MT6323_ID_RG_MAX + +#endif /* __LINUX_REGULATOR_MT6323_H */