From mboxrd@z Thu Jan 1 00:00:00 1970 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 55603C433EF for ; Tue, 31 May 2022 12:50:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344412AbiEaMuw (ORCPT ); Tue, 31 May 2022 08:50:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344365AbiEaMua (ORCPT ); Tue, 31 May 2022 08:50:30 -0400 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34BFB6EC4D for ; Tue, 31 May 2022 05:50:28 -0700 (PDT) Received: by mail-wm1-x329.google.com with SMTP id f23-20020a7bcc17000000b003972dda143eso1177982wmh.3 for ; Tue, 31 May 2022 05:50:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=sw6R+b0ghG3TrmcL5NbMD/29/goVl4u4L5LHJ0YXJWc=; b=55V/1LidyTASxgmxDGiIDTxctGshuDRBKBT0eIlnGalQxCU8pADhLZ8J2GmD8Cj8/g F9Y2XlHnQ7ORjr/NPaA+/FdgbSKbGztWHbWD3zPobYsbjFQvsLImJM2mH4ZdvMxGp4CJ bWJKzcp27Ekl5sDGPzR4jvR0vmJaeHZBXjPdXxMHMPjx83OzHHG0coQ11vM8EsKZ/iNs I8pS/FMDXdtAyR4vSfw82MNHESTdWHjojxLMv+umYRFibtVdCog6kjSSEE4AFCT/N3WH 0Mwk7XcINqJNW8Vuf751cr4ZOBVJ0jBI9HLVW3thOr5EqEecOB+rNdb9gz+4jYF05ovv CssA== 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:mime-version:content-transfer-encoding; bh=sw6R+b0ghG3TrmcL5NbMD/29/goVl4u4L5LHJ0YXJWc=; b=oMlj0NgsD78Dg09s16mrSnERhMM/pXQXGhhMf2TQy+V+sMtQ/FXxp1sVfoXVnrjQ+M rGoLkur0OmKB2dU//qsu2lPd+gp+cnlgWaqcEWvajQTZwANBp9PxA00rq1KwPEZWHZtt Pz1tQwjnwqtN+vXJWm1X2WVKNCLZCVFyKPsOD+s7gUR4oUrVNhpwpvh4IR/ex/Uhil5f XY2/OFKxs/le3rJegE7M9lKG4fXjcSqH3uPoYnCntQAMKnYCx5nNM0rNzpuhqtmR1sKh i4eRGdJxnv7OlVeildTyhBlU8Ij7XMij8aL1diD2fHk+uSCnsDEfot57wtnbAoFdHrJX eE1Q== X-Gm-Message-State: AOAM531sFqGa64cF37e0O5y4WtAvB1TKysGaRpwKrExFvaHkCzEFxhW0 8rDK5U1Y2HlzJtG29Ok22SM0Yg== X-Google-Smtp-Source: ABdhPJzLzT6nMd9j4TRM00qKaGHb7Loa92dX9zayp7k5JHHCHPdoDf502j4P83YfrhNvaZaWnTZh6Q== X-Received: by 2002:a05:600c:5126:b0:39a:eede:5bf4 with SMTP id o38-20020a05600c512600b0039aeede5bf4mr12619066wms.81.1654001426578; Tue, 31 May 2022 05:50:26 -0700 (PDT) Received: from helium.lan ([88.160.162.107]) by smtp.gmail.com with ESMTPSA id i13-20020adfaacd000000b0020fc40d006bsm11475019wrc.17.2022.05.31.05.50.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 May 2022 05:50:25 -0700 (PDT) From: Fabien Parent To: Liam Girdwood , Mark Brown , Matthias Brugger Cc: Fabien Parent , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH 6/7] regulator: add mt6357 regulator Date: Tue, 31 May 2022 14:49:58 +0200 Message-Id: <20220531124959.202787-7-fparent@baylibre.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220531124959.202787-1-fparent@baylibre.com> References: <20220531124959.202787-1-fparent@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add regulator driver for the MT6357 PMIC. Signed-off-by: Fabien Parent --- drivers/regulator/Kconfig | 9 + drivers/regulator/Makefile | 1 + drivers/regulator/mt6357-regulator.c | 485 +++++++++++++++++++++ include/linux/regulator/mt6357-regulator.h | 51 +++ 4 files changed, 546 insertions(+) create mode 100644 drivers/regulator/mt6357-regulator.c create mode 100644 include/linux/regulator/mt6357-regulator.h diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index cbe0f96ca342..488752f9b762 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -777,6 +777,15 @@ config REGULATOR_MT6323 This driver supports the control of different power rails of device through regulator interface. +config REGULATOR_MT6357 + tristate "MediaTek MT6357 PMIC" + depends on MFD_MT6397 + help + Say y here to select this option to enable the power regulator of + MediaTek MT6357 PMIC. + This driver supports the control of different power rails of device + through regulator interface. + config REGULATOR_MT6358 tristate "MediaTek MT6358 PMIC" depends on MFD_MT6397 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 8d3ee8b6d41d..b03780d8a52c 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -94,6 +94,7 @@ obj-$(CONFIG_REGULATOR_MPQ7920) += mpq7920.o obj-$(CONFIG_REGULATOR_MT6311) += mt6311-regulator.o obj-$(CONFIG_REGULATOR_MT6315) += mt6315-regulator.o obj-$(CONFIG_REGULATOR_MT6323) += mt6323-regulator.o +obj-$(CONFIG_REGULATOR_MT6357) += mt6357-regulator.o obj-$(CONFIG_REGULATOR_MT6358) += mt6358-regulator.o obj-$(CONFIG_REGULATOR_MT6359) += mt6359-regulator.o obj-$(CONFIG_REGULATOR_MT6360) += mt6360-regulator.o diff --git a/drivers/regulator/mt6357-regulator.c b/drivers/regulator/mt6357-regulator.c new file mode 100644 index 000000000000..85856d59e050 --- /dev/null +++ b/drivers/regulator/mt6357-regulator.c @@ -0,0 +1,485 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022 MediaTek Inc. + * Copyright (c) 2022 BayLibre, SAS. + * Author: Chen Zhong + * Author: Fabien Parent + * + * Based on mt6397-regulator.c + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * MT6357 regulators' information + * + * @desc: standard fields of regulator description. + * @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 mt6357_regulator_info { + struct regulator_desc desc; + const u32 *index_table; + unsigned int n_table; + u32 vsel_shift; + u32 da_vsel_reg; + u32 da_vsel_mask; + u32 da_vsel_shift; +}; + +#define MT6357_BUCK(match, vreg, min, max, step, \ + volt_ranges, vosel_reg, vosel_mask, _da_vsel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_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_reg, \ + .vsel_mask = vosel_mask, \ + .enable_reg = MT6357_BUCK_##vreg##_CON0, \ + .enable_mask = BIT(0), \ + }, \ + .da_vsel_reg = MT6357_BUCK_##vreg##_DBG0, \ + .da_vsel_mask = vosel_mask, \ + .da_vsel_shift = 0, \ +} + +#define MT6357_LDO(match, vreg, ldo_volt_table, \ + ldo_index_table, enreg, vosel, \ + vosel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_table_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(ldo_volt_table), \ + .volt_table = ldo_volt_table, \ + .vsel_reg = vosel, \ + .vsel_mask = vosel_mask << 8, \ + .enable_reg = enreg, \ + .enable_mask = BIT(0), \ + }, \ + .index_table = ldo_index_table, \ + .n_table = ARRAY_SIZE(ldo_index_table), \ +} + +#define MT6357_LDO1(match, vreg, min, max, step, volt_ranges, \ + enreg, vosel, vosel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_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), \ + }, \ + .da_vsel_reg = MT6357_LDO_##vreg##_DBG0, \ + .da_vsel_mask = 0x7f, \ + .da_vsel_shift = 8, \ +} + +#define MT6357_REG_FIXED(match, vreg, volt) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_fixed_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = 1, \ + .enable_reg = MT6357_LDO_##vreg##_CON0, \ + .enable_mask = BIT(0), \ + .min_uV = volt, \ + }, \ +} + +static int mt6357_set_voltage_sel(struct regulator_dev *rdev, + unsigned int selector) +{ + int idx, ret; + const u32 *pvol; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + + pvol = info->index_table; + + idx = pvol[selector]; + ret = regmap_update_bits(rdev->regmap, info->desc.vsel_reg, + info->desc.vsel_mask, + idx << 8); + + return ret; +} + +static int mt6357_get_voltage_sel(struct regulator_dev *rdev) +{ + int idx, ret; + u32 selector; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + const u32 *pvol; + + ret = regmap_read(rdev->regmap, info->desc.vsel_reg, &selector); + if (ret != 0) { + dev_info(&rdev->dev, + "Failed to get mt6357 %s vsel reg: %d\n", + info->desc.name, ret); + return ret; + } + + selector = (selector & info->desc.vsel_mask) >> 8; + pvol = info->index_table; + for (idx = 0; idx < info->desc.n_voltages; idx++) { + if (pvol[idx] == selector) + return idx; + } + + return -EINVAL; +} + +static int mt6357_get_buck_voltage_sel(struct regulator_dev *rdev) +{ + int ret, regval; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + + ret = regmap_read(rdev->regmap, info->da_vsel_reg, ®val); + if (ret != 0) { + dev_err(&rdev->dev, + "Failed to get mt6357 Buck %s vsel reg: %d\n", + info->desc.name, ret); + return ret; + } + + ret = (regval & info->da_vsel_mask) >> info->da_vsel_shift; + + return ret; +} + +static const struct regulator_ops mt6357_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 = mt6357_get_buck_voltage_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_ops mt6357_volt_table_ops = { + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_iterate, + .set_voltage_sel = mt6357_set_voltage_sel, + .get_voltage_sel = mt6357_get_voltage_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_ops mt6357_volt_fixed_ops = { + .list_voltage = regulator_list_voltage_linear, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const int vxo22_voltages[] = { + 2200000, + 2400000, +}; + +static const int vefuse_voltages[] = { + 1200000, + 1300000, + 1500000, + 1800000, + 2800000, + 2900000, + 3000000, + 3300000, +}; + +static const int vcn33_voltages[] = { + 3300000, + 3400000, + 3500000, +}; + +static const int vcama_voltages[] = { + 2500000, + 2800000, +}; + +static const int vcamd_voltages[] = { + 1000000, + 1100000, + 1200000, + 1300000, + 1500000, + 1800000, +}; + +static const int vldo28_voltages[] = { + 2800000, + 3000000, +}; + +static const int vdram_voltages[] = { + 1100000, + 1200000, +}; + +static const int vsim_voltages[] = { + 1700000, + 1800000, + 2700000, + 3000000, + 3100000, +}; + +static const int vibr_voltages[] = { + 1200000, + 1300000, + 1500000, + 1800000, + 2000000, + 2800000, + 3000000, + 3300000, +}; + +static const int vmc_voltages[] = { + 1800000, + 2900000, + 3000000, + 3300000, +}; + +static const int vmch_voltages[] = { + 2900000, + 3000000, + 3300000, +}; + +static const int vemc_voltages[] = { + 2900000, + 3000000, + 3300000, +}; + +static const int vusb_voltages[] = { + 3000000, + 3100000, +}; + +static const int vmc_idx[] = { + 4, 10, 11, 13, +}; + +static const int vmch_idx[] = { + 2, 3, 5, +}; + +static const int vemc_idx[] = { + 2, 3, 5, +}; + +static const int vusb_idx[] = { + 3, 4, +}; + +static const int vxo22_idx[] = { + 0, 2, +}; + +static const int vefuse_idx[] = { + 0, 1, 2, 4, 9, 10, 11, 13, +}; + +static const int vcn33_idx[] = { + 1, 2, 3, +}; + +static const int vcama_idx[] = { + 7, 10, +}; + +static const int vcamd_idx[] = { + 4, 5, 6, 7, 9, 12, +}; + +static const int vldo28_idx[] = { + 1, 3, +}; + +static const int vdram_idx[] = { + 1, 2, +}; + +static const int vsim_idx[] = { + 3, 4, 8, 11, 12, +}; + +static const int vibr_idx[] = { + 0, 1, 2, 4, 5, 9, 11, 13, +}; + +static const struct linear_range buck_volt_range1[] = { + REGULATOR_LINEAR_RANGE(518750, 0, 0x7f, 6250), +}; + +static const struct linear_range buck_volt_range2[] = { + REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250), +}; + +static const struct linear_range buck_volt_range3[] = { + REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000), +}; + +static const struct linear_range buck_volt_range4[] = { + REGULATOR_LINEAR_RANGE(1200000, 0, 0x7f, 12500), +}; + +/* The array is indexed by id(MT6357_ID_XXX) */ +static struct mt6357_regulator_info mt6357_regulators[] = { + /* Bucks */ + MT6357_BUCK("buck-vcore", VCORE, 518750, 1312500, 6250, + buck_volt_range1, MT6357_BUCK_VCORE_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vproc", VPROC, 518750, 1312500, 6250, + buck_volt_range1, MT6357_BUCK_VPROC_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vmodem", VMODEM, 500000, 1293750, 6250, + buck_volt_range2, MT6357_BUCK_VMODEM_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vpa", VPA, 500000, 3650000, 50000, + buck_volt_range3, MT6357_BUCK_VPA_CON1, 0x3f, 0x3f), + MT6357_BUCK("buck-vs1", VS1, 1200000, 2787500, 12500, + buck_volt_range4, MT6357_BUCK_VS1_ELR0, 0x7f, 0x7f), + + /* LDOs */ + MT6357_LDO("ldo-vcama", VCAMA, vcama_voltages, vcama_idx, + MT6357_LDO_VCAMA_CON0, MT6357_VCAMA_ANA_CON0, 0xf), + MT6357_LDO("ldo-vcamd", VCAMD, vcamd_voltages, vcamd_idx, + MT6357_LDO_VCAMD_CON0, MT6357_VCAMD_ANA_CON0, 0xf), + MT6357_LDO("ldo-vcn33-bt", VCN33_BT, vcn33_voltages, vcn33_idx, + MT6357_LDO_VCN33_CON0_0, MT6357_VCN33_ANA_CON0, 0x3), + MT6357_LDO("ldo-vcn33-wifi", VCN33_WIFI, vcn33_voltages, vcn33_idx, + MT6357_LDO_VCN33_CON0_1, MT6357_VCN33_ANA_CON0, 0x3), + MT6357_LDO("ldo-vdram", VDRAM, vdram_voltages, vdram_idx, + MT6357_LDO_VDRAM_CON0, MT6357_VDRAM_ELR_2, 0x3), + MT6357_LDO("ldo-vefuse", VEFUSE, vefuse_voltages, vefuse_idx, + MT6357_LDO_VEFUSE_CON0, MT6357_VEFUSE_ANA_CON0, 0xf), + MT6357_LDO("ldo-vemc", VEMC, vemc_voltages, vemc_idx, + MT6357_LDO_VEMC_CON0, MT6357_VEMC_ANA_CON0, 0x7), + MT6357_LDO("ldo-vibr", VIBR, vibr_voltages, vibr_idx, + MT6357_LDO_VIBR_CON0, MT6357_VIBR_ANA_CON0, 0xf), + MT6357_LDO("ldo-vldo28", VLDO28, vldo28_voltages, vldo28_idx, + MT6357_LDO_VLDO28_CON0_0, MT6357_VLDO28_ANA_CON0, 0x3), + MT6357_LDO("ldo-vmc", VMC, vmc_voltages, vmc_idx, + MT6357_LDO_VMC_CON0, MT6357_VMC_ANA_CON0, 0xf), + MT6357_LDO("ldo-vmch", VMCH, vmch_voltages, vmch_idx, + MT6357_LDO_VMCH_CON0, MT6357_VMCH_ANA_CON0, 0x7), + MT6357_LDO("ldo-vsim1", VSIM1, vsim_voltages, vsim_idx, + MT6357_LDO_VSIM1_CON0, MT6357_VSIM1_ANA_CON0, 0xf), + MT6357_LDO("ldo-vsim2", VSIM2, vsim_voltages, vsim_idx, + MT6357_LDO_VSIM2_CON0, MT6357_VSIM2_ANA_CON0, 0xf), + MT6357_LDO("ldo-vusb33", VUSB33, vusb_voltages, vusb_idx, + MT6357_LDO_VUSB33_CON0_0, MT6357_VUSB33_ANA_CON0, 0x7), + MT6357_LDO("ldo-vxo22", VXO22, vxo22_voltages, vxo22_idx, + MT6357_LDO_VXO22_CON0, MT6357_VXO22_ANA_CON0, 0x3), + + MT6357_LDO1("ldo-vsram-proc", VSRAM_PROC, 518750, 1312500, 6250, + buck_volt_range1, MT6357_LDO_VSRAM_PROC_CON0, + MT6357_LDO_VSRAM_CON0, 0x7f), + MT6357_LDO1("ldo-vsram-others", VSRAM_OTHERS, 518750, 1312500, 6250, + buck_volt_range1, MT6357_LDO_VSRAM_OTHERS_CON0, + MT6357_LDO_VSRAM_CON1, 0x7f), + + MT6357_REG_FIXED("ldo-vaud28", VAUD28, 2800000), + MT6357_REG_FIXED("ldo-vaux18", VAUX18, 1800000), + MT6357_REG_FIXED("ldo-vcamio18", VCAMIO, 1800000), + MT6357_REG_FIXED("ldo-vcn18", VCN18, 1800000), + MT6357_REG_FIXED("ldo-vcn28", VCN28, 2800000), + MT6357_REG_FIXED("ldo-vfe28", VFE28, 2800000), + MT6357_REG_FIXED("ldo-vio18", VIO18, 1800000), + MT6357_REG_FIXED("ldo-vio28", VIO28, 2800000), + MT6357_REG_FIXED("ldo-vrf12", VRF12, 1200000), + MT6357_REG_FIXED("ldo-vrf18", VRF18, 1800000), +}; + +static int mt6357_regulator_probe(struct platform_device *pdev) +{ + struct mt6397_chip *mt6357 = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = {}; + struct regulator_dev *rdev; + int i; + + pdev->dev.of_node = pdev->dev.parent->of_node; + + for (i = 0; i < MT6357_MAX_REGULATOR; i++) { + config.dev = &pdev->dev; + config.driver_data = &mt6357_regulators[i]; + config.regmap = mt6357->regmap; + + rdev = devm_regulator_register(&pdev->dev, + &mt6357_regulators[i].desc, + &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register %s\n", + mt6357_regulators[i].desc.name); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static const struct platform_device_id mt6357_platform_ids[] = { + { "mt6357-regulator" }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(platform, mt6357_platform_ids); + +static struct platform_driver mt6357_regulator_driver = { + .driver = { + .name = "mt6357-regulator", + }, + .probe = mt6357_regulator_probe, + .id_table = mt6357_platform_ids, +}; + +module_platform_driver(mt6357_regulator_driver); + +MODULE_AUTHOR("Fabien Parent "); +MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6357 PMIC"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/regulator/mt6357-regulator.h b/include/linux/regulator/mt6357-regulator.h new file mode 100644 index 000000000000..238b1ee77ea6 --- /dev/null +++ b/include/linux/regulator/mt6357-regulator.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2022 MediaTek Inc. + */ + +#ifndef __LINUX_REGULATOR_MT6357_H +#define __LINUX_REGULATOR_MT6357_H + +enum { + /* Bucks */ + MT6357_ID_VCORE, + MT6357_ID_VMODEM, + MT6357_ID_VPA, + MT6357_ID_VPROC, + MT6357_ID_VS1, + + /* LDOs */ + MT6357_ID_VAUX18, + MT6357_ID_VAUD28, + MT6357_ID_VCAMA, + MT6357_ID_VCAMD, + MT6357_ID_VCAMIO, + MT6357_ID_VCN18, + MT6357_ID_VCN28, + MT6357_ID_VCN33_BT, + MT6357_ID_VCN33_WIFI, + MT6357_ID_VDRAM, + MT6357_ID_VEFUSE, + MT6357_ID_VEMC, + MT6357_ID_VFE28, + MT6357_ID_VIBR, + MT6357_ID_VIO18, + MT6357_ID_VIO28, + MT6357_ID_VLDO28, + MT6357_ID_VMC, + MT6357_ID_VMCH, + MT6357_ID_VRF12, + MT6357_ID_VRF18, + MT6357_ID_VSIM1, + MT6357_ID_VSIM2, + MT6357_ID_VSRAM_OTHERS, + MT6357_ID_VSRAM_PROC, + MT6357_ID_VUSB33, + MT6357_ID_VXO22, + + MT6357_ID_RG_MAX, +}; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add regulator driver for the MT6357 PMIC. Signed-off-by: Fabien Parent --- drivers/regulator/Kconfig | 9 + drivers/regulator/Makefile | 1 + drivers/regulator/mt6357-regulator.c | 485 +++++++++++++++++++++ include/linux/regulator/mt6357-regulator.h | 51 +++ 4 files changed, 546 insertions(+) create mode 100644 drivers/regulator/mt6357-regulator.c create mode 100644 include/linux/regulator/mt6357-regulator.h diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index cbe0f96ca342..488752f9b762 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -777,6 +777,15 @@ config REGULATOR_MT6323 This driver supports the control of different power rails of device through regulator interface. +config REGULATOR_MT6357 + tristate "MediaTek MT6357 PMIC" + depends on MFD_MT6397 + help + Say y here to select this option to enable the power regulator of + MediaTek MT6357 PMIC. + This driver supports the control of different power rails of device + through regulator interface. + config REGULATOR_MT6358 tristate "MediaTek MT6358 PMIC" depends on MFD_MT6397 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 8d3ee8b6d41d..b03780d8a52c 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -94,6 +94,7 @@ obj-$(CONFIG_REGULATOR_MPQ7920) += mpq7920.o obj-$(CONFIG_REGULATOR_MT6311) += mt6311-regulator.o obj-$(CONFIG_REGULATOR_MT6315) += mt6315-regulator.o obj-$(CONFIG_REGULATOR_MT6323) += mt6323-regulator.o +obj-$(CONFIG_REGULATOR_MT6357) += mt6357-regulator.o obj-$(CONFIG_REGULATOR_MT6358) += mt6358-regulator.o obj-$(CONFIG_REGULATOR_MT6359) += mt6359-regulator.o obj-$(CONFIG_REGULATOR_MT6360) += mt6360-regulator.o diff --git a/drivers/regulator/mt6357-regulator.c b/drivers/regulator/mt6357-regulator.c new file mode 100644 index 000000000000..85856d59e050 --- /dev/null +++ b/drivers/regulator/mt6357-regulator.c @@ -0,0 +1,485 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022 MediaTek Inc. + * Copyright (c) 2022 BayLibre, SAS. + * Author: Chen Zhong + * Author: Fabien Parent + * + * Based on mt6397-regulator.c + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * MT6357 regulators' information + * + * @desc: standard fields of regulator description. + * @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 mt6357_regulator_info { + struct regulator_desc desc; + const u32 *index_table; + unsigned int n_table; + u32 vsel_shift; + u32 da_vsel_reg; + u32 da_vsel_mask; + u32 da_vsel_shift; +}; + +#define MT6357_BUCK(match, vreg, min, max, step, \ + volt_ranges, vosel_reg, vosel_mask, _da_vsel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_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_reg, \ + .vsel_mask = vosel_mask, \ + .enable_reg = MT6357_BUCK_##vreg##_CON0, \ + .enable_mask = BIT(0), \ + }, \ + .da_vsel_reg = MT6357_BUCK_##vreg##_DBG0, \ + .da_vsel_mask = vosel_mask, \ + .da_vsel_shift = 0, \ +} + +#define MT6357_LDO(match, vreg, ldo_volt_table, \ + ldo_index_table, enreg, vosel, \ + vosel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_table_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(ldo_volt_table), \ + .volt_table = ldo_volt_table, \ + .vsel_reg = vosel, \ + .vsel_mask = vosel_mask << 8, \ + .enable_reg = enreg, \ + .enable_mask = BIT(0), \ + }, \ + .index_table = ldo_index_table, \ + .n_table = ARRAY_SIZE(ldo_index_table), \ +} + +#define MT6357_LDO1(match, vreg, min, max, step, volt_ranges, \ + enreg, vosel, vosel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_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), \ + }, \ + .da_vsel_reg = MT6357_LDO_##vreg##_DBG0, \ + .da_vsel_mask = 0x7f, \ + .da_vsel_shift = 8, \ +} + +#define MT6357_REG_FIXED(match, vreg, volt) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_fixed_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = 1, \ + .enable_reg = MT6357_LDO_##vreg##_CON0, \ + .enable_mask = BIT(0), \ + .min_uV = volt, \ + }, \ +} + +static int mt6357_set_voltage_sel(struct regulator_dev *rdev, + unsigned int selector) +{ + int idx, ret; + const u32 *pvol; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + + pvol = info->index_table; + + idx = pvol[selector]; + ret = regmap_update_bits(rdev->regmap, info->desc.vsel_reg, + info->desc.vsel_mask, + idx << 8); + + return ret; +} + +static int mt6357_get_voltage_sel(struct regulator_dev *rdev) +{ + int idx, ret; + u32 selector; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + const u32 *pvol; + + ret = regmap_read(rdev->regmap, info->desc.vsel_reg, &selector); + if (ret != 0) { + dev_info(&rdev->dev, + "Failed to get mt6357 %s vsel reg: %d\n", + info->desc.name, ret); + return ret; + } + + selector = (selector & info->desc.vsel_mask) >> 8; + pvol = info->index_table; + for (idx = 0; idx < info->desc.n_voltages; idx++) { + if (pvol[idx] == selector) + return idx; + } + + return -EINVAL; +} + +static int mt6357_get_buck_voltage_sel(struct regulator_dev *rdev) +{ + int ret, regval; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + + ret = regmap_read(rdev->regmap, info->da_vsel_reg, ®val); + if (ret != 0) { + dev_err(&rdev->dev, + "Failed to get mt6357 Buck %s vsel reg: %d\n", + info->desc.name, ret); + return ret; + } + + ret = (regval & info->da_vsel_mask) >> info->da_vsel_shift; + + return ret; +} + +static const struct regulator_ops mt6357_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 = mt6357_get_buck_voltage_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_ops mt6357_volt_table_ops = { + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_iterate, + .set_voltage_sel = mt6357_set_voltage_sel, + .get_voltage_sel = mt6357_get_voltage_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_ops mt6357_volt_fixed_ops = { + .list_voltage = regulator_list_voltage_linear, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const int vxo22_voltages[] = { + 2200000, + 2400000, +}; + +static const int vefuse_voltages[] = { + 1200000, + 1300000, + 1500000, + 1800000, + 2800000, + 2900000, + 3000000, + 3300000, +}; + +static const int vcn33_voltages[] = { + 3300000, + 3400000, + 3500000, +}; + +static const int vcama_voltages[] = { + 2500000, + 2800000, +}; + +static const int vcamd_voltages[] = { + 1000000, + 1100000, + 1200000, + 1300000, + 1500000, + 1800000, +}; + +static const int vldo28_voltages[] = { + 2800000, + 3000000, +}; + +static const int vdram_voltages[] = { + 1100000, + 1200000, +}; + +static const int vsim_voltages[] = { + 1700000, + 1800000, + 2700000, + 3000000, + 3100000, +}; + +static const int vibr_voltages[] = { + 1200000, + 1300000, + 1500000, + 1800000, + 2000000, + 2800000, + 3000000, + 3300000, +}; + +static const int vmc_voltages[] = { + 1800000, + 2900000, + 3000000, + 3300000, +}; + +static const int vmch_voltages[] = { + 2900000, + 3000000, + 3300000, +}; + +static const int vemc_voltages[] = { + 2900000, + 3000000, + 3300000, +}; + +static const int vusb_voltages[] = { + 3000000, + 3100000, +}; + +static const int vmc_idx[] = { + 4, 10, 11, 13, +}; + +static const int vmch_idx[] = { + 2, 3, 5, +}; + +static const int vemc_idx[] = { + 2, 3, 5, +}; + +static const int vusb_idx[] = { + 3, 4, +}; + +static const int vxo22_idx[] = { + 0, 2, +}; + +static const int vefuse_idx[] = { + 0, 1, 2, 4, 9, 10, 11, 13, +}; + +static const int vcn33_idx[] = { + 1, 2, 3, +}; + +static const int vcama_idx[] = { + 7, 10, +}; + +static const int vcamd_idx[] = { + 4, 5, 6, 7, 9, 12, +}; + +static const int vldo28_idx[] = { + 1, 3, +}; + +static const int vdram_idx[] = { + 1, 2, +}; + +static const int vsim_idx[] = { + 3, 4, 8, 11, 12, +}; + +static const int vibr_idx[] = { + 0, 1, 2, 4, 5, 9, 11, 13, +}; + +static const struct linear_range buck_volt_range1[] = { + REGULATOR_LINEAR_RANGE(518750, 0, 0x7f, 6250), +}; + +static const struct linear_range buck_volt_range2[] = { + REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250), +}; + +static const struct linear_range buck_volt_range3[] = { + REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000), +}; + +static const struct linear_range buck_volt_range4[] = { + REGULATOR_LINEAR_RANGE(1200000, 0, 0x7f, 12500), +}; + +/* The array is indexed by id(MT6357_ID_XXX) */ +static struct mt6357_regulator_info mt6357_regulators[] = { + /* Bucks */ + MT6357_BUCK("buck-vcore", VCORE, 518750, 1312500, 6250, + buck_volt_range1, MT6357_BUCK_VCORE_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vproc", VPROC, 518750, 1312500, 6250, + buck_volt_range1, MT6357_BUCK_VPROC_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vmodem", VMODEM, 500000, 1293750, 6250, + buck_volt_range2, MT6357_BUCK_VMODEM_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vpa", VPA, 500000, 3650000, 50000, + buck_volt_range3, MT6357_BUCK_VPA_CON1, 0x3f, 0x3f), + MT6357_BUCK("buck-vs1", VS1, 1200000, 2787500, 12500, + buck_volt_range4, MT6357_BUCK_VS1_ELR0, 0x7f, 0x7f), + + /* LDOs */ + MT6357_LDO("ldo-vcama", VCAMA, vcama_voltages, vcama_idx, + MT6357_LDO_VCAMA_CON0, MT6357_VCAMA_ANA_CON0, 0xf), + MT6357_LDO("ldo-vcamd", VCAMD, vcamd_voltages, vcamd_idx, + MT6357_LDO_VCAMD_CON0, MT6357_VCAMD_ANA_CON0, 0xf), + MT6357_LDO("ldo-vcn33-bt", VCN33_BT, vcn33_voltages, vcn33_idx, + MT6357_LDO_VCN33_CON0_0, MT6357_VCN33_ANA_CON0, 0x3), + MT6357_LDO("ldo-vcn33-wifi", VCN33_WIFI, vcn33_voltages, vcn33_idx, + MT6357_LDO_VCN33_CON0_1, MT6357_VCN33_ANA_CON0, 0x3), + MT6357_LDO("ldo-vdram", VDRAM, vdram_voltages, vdram_idx, + MT6357_LDO_VDRAM_CON0, MT6357_VDRAM_ELR_2, 0x3), + MT6357_LDO("ldo-vefuse", VEFUSE, vefuse_voltages, vefuse_idx, + MT6357_LDO_VEFUSE_CON0, MT6357_VEFUSE_ANA_CON0, 0xf), + MT6357_LDO("ldo-vemc", VEMC, vemc_voltages, vemc_idx, + MT6357_LDO_VEMC_CON0, MT6357_VEMC_ANA_CON0, 0x7), + MT6357_LDO("ldo-vibr", VIBR, vibr_voltages, vibr_idx, + MT6357_LDO_VIBR_CON0, MT6357_VIBR_ANA_CON0, 0xf), + MT6357_LDO("ldo-vldo28", VLDO28, vldo28_voltages, vldo28_idx, + MT6357_LDO_VLDO28_CON0_0, MT6357_VLDO28_ANA_CON0, 0x3), + MT6357_LDO("ldo-vmc", VMC, vmc_voltages, vmc_idx, + MT6357_LDO_VMC_CON0, MT6357_VMC_ANA_CON0, 0xf), + MT6357_LDO("ldo-vmch", VMCH, vmch_voltages, vmch_idx, + MT6357_LDO_VMCH_CON0, MT6357_VMCH_ANA_CON0, 0x7), + MT6357_LDO("ldo-vsim1", VSIM1, vsim_voltages, vsim_idx, + MT6357_LDO_VSIM1_CON0, MT6357_VSIM1_ANA_CON0, 0xf), + MT6357_LDO("ldo-vsim2", VSIM2, vsim_voltages, vsim_idx, + MT6357_LDO_VSIM2_CON0, MT6357_VSIM2_ANA_CON0, 0xf), + MT6357_LDO("ldo-vusb33", VUSB33, vusb_voltages, vusb_idx, + MT6357_LDO_VUSB33_CON0_0, MT6357_VUSB33_ANA_CON0, 0x7), + MT6357_LDO("ldo-vxo22", VXO22, vxo22_voltages, vxo22_idx, + MT6357_LDO_VXO22_CON0, MT6357_VXO22_ANA_CON0, 0x3), + + MT6357_LDO1("ldo-vsram-proc", VSRAM_PROC, 518750, 1312500, 6250, + buck_volt_range1, MT6357_LDO_VSRAM_PROC_CON0, + MT6357_LDO_VSRAM_CON0, 0x7f), + MT6357_LDO1("ldo-vsram-others", VSRAM_OTHERS, 518750, 1312500, 6250, + buck_volt_range1, MT6357_LDO_VSRAM_OTHERS_CON0, + MT6357_LDO_VSRAM_CON1, 0x7f), + + MT6357_REG_FIXED("ldo-vaud28", VAUD28, 2800000), + MT6357_REG_FIXED("ldo-vaux18", VAUX18, 1800000), + MT6357_REG_FIXED("ldo-vcamio18", VCAMIO, 1800000), + MT6357_REG_FIXED("ldo-vcn18", VCN18, 1800000), + MT6357_REG_FIXED("ldo-vcn28", VCN28, 2800000), + MT6357_REG_FIXED("ldo-vfe28", VFE28, 2800000), + MT6357_REG_FIXED("ldo-vio18", VIO18, 1800000), + MT6357_REG_FIXED("ldo-vio28", VIO28, 2800000), + MT6357_REG_FIXED("ldo-vrf12", VRF12, 1200000), + MT6357_REG_FIXED("ldo-vrf18", VRF18, 1800000), +}; + +static int mt6357_regulator_probe(struct platform_device *pdev) +{ + struct mt6397_chip *mt6357 = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = {}; + struct regulator_dev *rdev; + int i; + + pdev->dev.of_node = pdev->dev.parent->of_node; + + for (i = 0; i < MT6357_MAX_REGULATOR; i++) { + config.dev = &pdev->dev; + config.driver_data = &mt6357_regulators[i]; + config.regmap = mt6357->regmap; + + rdev = devm_regulator_register(&pdev->dev, + &mt6357_regulators[i].desc, + &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register %s\n", + mt6357_regulators[i].desc.name); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static const struct platform_device_id mt6357_platform_ids[] = { + { "mt6357-regulator" }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(platform, mt6357_platform_ids); + +static struct platform_driver mt6357_regulator_driver = { + .driver = { + .name = "mt6357-regulator", + }, + .probe = mt6357_regulator_probe, + .id_table = mt6357_platform_ids, +}; + +module_platform_driver(mt6357_regulator_driver); + +MODULE_AUTHOR("Fabien Parent "); +MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6357 PMIC"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/regulator/mt6357-regulator.h b/include/linux/regulator/mt6357-regulator.h new file mode 100644 index 000000000000..238b1ee77ea6 --- /dev/null +++ b/include/linux/regulator/mt6357-regulator.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2022 MediaTek Inc. + */ + +#ifndef __LINUX_REGULATOR_MT6357_H +#define __LINUX_REGULATOR_MT6357_H + +enum { + /* Bucks */ + MT6357_ID_VCORE, + MT6357_ID_VMODEM, + MT6357_ID_VPA, + MT6357_ID_VPROC, + MT6357_ID_VS1, + + /* LDOs */ + MT6357_ID_VAUX18, + MT6357_ID_VAUD28, + MT6357_ID_VCAMA, + MT6357_ID_VCAMD, + MT6357_ID_VCAMIO, + MT6357_ID_VCN18, + MT6357_ID_VCN28, + MT6357_ID_VCN33_BT, + MT6357_ID_VCN33_WIFI, + MT6357_ID_VDRAM, + MT6357_ID_VEFUSE, + MT6357_ID_VEMC, + MT6357_ID_VFE28, + MT6357_ID_VIBR, + MT6357_ID_VIO18, + MT6357_ID_VIO28, + MT6357_ID_VLDO28, + MT6357_ID_VMC, + MT6357_ID_VMCH, + MT6357_ID_VRF12, + MT6357_ID_VRF18, + MT6357_ID_VSIM1, + MT6357_ID_VSIM2, + MT6357_ID_VSRAM_OTHERS, + MT6357_ID_VSRAM_PROC, + MT6357_ID_VUSB33, + MT6357_ID_VXO22, + + MT6357_ID_RG_MAX, +}; + +#define MT6357_MAX_REGULATOR MT6357_ID_RG_MAX + +#endif /* __LINUX_REGULATOR_MT6357_H */ -- 2.36.1 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5290FC433EF for ; Tue, 31 May 2022 12:54:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Tue, 31 May 2022 05:50:26 -0700 (PDT) Received: from helium.lan ([88.160.162.107]) by smtp.gmail.com with ESMTPSA id i13-20020adfaacd000000b0020fc40d006bsm11475019wrc.17.2022.05.31.05.50.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 May 2022 05:50:25 -0700 (PDT) From: Fabien Parent To: Liam Girdwood , Mark Brown , Matthias Brugger Cc: Fabien Parent , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH 6/7] regulator: add mt6357 regulator Date: Tue, 31 May 2022 14:49:58 +0200 Message-Id: <20220531124959.202787-7-fparent@baylibre.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220531124959.202787-1-fparent@baylibre.com> References: <20220531124959.202787-1-fparent@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220531_055030_474348_190CCDBB X-CRM114-Status: GOOD ( 22.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add regulator driver for the MT6357 PMIC. Signed-off-by: Fabien Parent --- drivers/regulator/Kconfig | 9 + drivers/regulator/Makefile | 1 + drivers/regulator/mt6357-regulator.c | 485 +++++++++++++++++++++ include/linux/regulator/mt6357-regulator.h | 51 +++ 4 files changed, 546 insertions(+) create mode 100644 drivers/regulator/mt6357-regulator.c create mode 100644 include/linux/regulator/mt6357-regulator.h diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index cbe0f96ca342..488752f9b762 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -777,6 +777,15 @@ config REGULATOR_MT6323 This driver supports the control of different power rails of device through regulator interface. +config REGULATOR_MT6357 + tristate "MediaTek MT6357 PMIC" + depends on MFD_MT6397 + help + Say y here to select this option to enable the power regulator of + MediaTek MT6357 PMIC. + This driver supports the control of different power rails of device + through regulator interface. + config REGULATOR_MT6358 tristate "MediaTek MT6358 PMIC" depends on MFD_MT6397 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 8d3ee8b6d41d..b03780d8a52c 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -94,6 +94,7 @@ obj-$(CONFIG_REGULATOR_MPQ7920) += mpq7920.o obj-$(CONFIG_REGULATOR_MT6311) += mt6311-regulator.o obj-$(CONFIG_REGULATOR_MT6315) += mt6315-regulator.o obj-$(CONFIG_REGULATOR_MT6323) += mt6323-regulator.o +obj-$(CONFIG_REGULATOR_MT6357) += mt6357-regulator.o obj-$(CONFIG_REGULATOR_MT6358) += mt6358-regulator.o obj-$(CONFIG_REGULATOR_MT6359) += mt6359-regulator.o obj-$(CONFIG_REGULATOR_MT6360) += mt6360-regulator.o diff --git a/drivers/regulator/mt6357-regulator.c b/drivers/regulator/mt6357-regulator.c new file mode 100644 index 000000000000..85856d59e050 --- /dev/null +++ b/drivers/regulator/mt6357-regulator.c @@ -0,0 +1,485 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022 MediaTek Inc. + * Copyright (c) 2022 BayLibre, SAS. + * Author: Chen Zhong + * Author: Fabien Parent + * + * Based on mt6397-regulator.c + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * MT6357 regulators' information + * + * @desc: standard fields of regulator description. + * @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 mt6357_regulator_info { + struct regulator_desc desc; + const u32 *index_table; + unsigned int n_table; + u32 vsel_shift; + u32 da_vsel_reg; + u32 da_vsel_mask; + u32 da_vsel_shift; +}; + +#define MT6357_BUCK(match, vreg, min, max, step, \ + volt_ranges, vosel_reg, vosel_mask, _da_vsel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_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_reg, \ + .vsel_mask = vosel_mask, \ + .enable_reg = MT6357_BUCK_##vreg##_CON0, \ + .enable_mask = BIT(0), \ + }, \ + .da_vsel_reg = MT6357_BUCK_##vreg##_DBG0, \ + .da_vsel_mask = vosel_mask, \ + .da_vsel_shift = 0, \ +} + +#define MT6357_LDO(match, vreg, ldo_volt_table, \ + ldo_index_table, enreg, vosel, \ + vosel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_table_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(ldo_volt_table), \ + .volt_table = ldo_volt_table, \ + .vsel_reg = vosel, \ + .vsel_mask = vosel_mask << 8, \ + .enable_reg = enreg, \ + .enable_mask = BIT(0), \ + }, \ + .index_table = ldo_index_table, \ + .n_table = ARRAY_SIZE(ldo_index_table), \ +} + +#define MT6357_LDO1(match, vreg, min, max, step, volt_ranges, \ + enreg, vosel, vosel_mask) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_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), \ + }, \ + .da_vsel_reg = MT6357_LDO_##vreg##_DBG0, \ + .da_vsel_mask = 0x7f, \ + .da_vsel_shift = 8, \ +} + +#define MT6357_REG_FIXED(match, vreg, volt) \ +[MT6357_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .regulators_node = "regulators", \ + .ops = &mt6357_volt_fixed_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6357_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = 1, \ + .enable_reg = MT6357_LDO_##vreg##_CON0, \ + .enable_mask = BIT(0), \ + .min_uV = volt, \ + }, \ +} + +static int mt6357_set_voltage_sel(struct regulator_dev *rdev, + unsigned int selector) +{ + int idx, ret; + const u32 *pvol; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + + pvol = info->index_table; + + idx = pvol[selector]; + ret = regmap_update_bits(rdev->regmap, info->desc.vsel_reg, + info->desc.vsel_mask, + idx << 8); + + return ret; +} + +static int mt6357_get_voltage_sel(struct regulator_dev *rdev) +{ + int idx, ret; + u32 selector; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + const u32 *pvol; + + ret = regmap_read(rdev->regmap, info->desc.vsel_reg, &selector); + if (ret != 0) { + dev_info(&rdev->dev, + "Failed to get mt6357 %s vsel reg: %d\n", + info->desc.name, ret); + return ret; + } + + selector = (selector & info->desc.vsel_mask) >> 8; + pvol = info->index_table; + for (idx = 0; idx < info->desc.n_voltages; idx++) { + if (pvol[idx] == selector) + return idx; + } + + return -EINVAL; +} + +static int mt6357_get_buck_voltage_sel(struct regulator_dev *rdev) +{ + int ret, regval; + struct mt6357_regulator_info *info = rdev_get_drvdata(rdev); + + ret = regmap_read(rdev->regmap, info->da_vsel_reg, ®val); + if (ret != 0) { + dev_err(&rdev->dev, + "Failed to get mt6357 Buck %s vsel reg: %d\n", + info->desc.name, ret); + return ret; + } + + ret = (regval & info->da_vsel_mask) >> info->da_vsel_shift; + + return ret; +} + +static const struct regulator_ops mt6357_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 = mt6357_get_buck_voltage_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_ops mt6357_volt_table_ops = { + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_iterate, + .set_voltage_sel = mt6357_set_voltage_sel, + .get_voltage_sel = mt6357_get_voltage_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_ops mt6357_volt_fixed_ops = { + .list_voltage = regulator_list_voltage_linear, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const int vxo22_voltages[] = { + 2200000, + 2400000, +}; + +static const int vefuse_voltages[] = { + 1200000, + 1300000, + 1500000, + 1800000, + 2800000, + 2900000, + 3000000, + 3300000, +}; + +static const int vcn33_voltages[] = { + 3300000, + 3400000, + 3500000, +}; + +static const int vcama_voltages[] = { + 2500000, + 2800000, +}; + +static const int vcamd_voltages[] = { + 1000000, + 1100000, + 1200000, + 1300000, + 1500000, + 1800000, +}; + +static const int vldo28_voltages[] = { + 2800000, + 3000000, +}; + +static const int vdram_voltages[] = { + 1100000, + 1200000, +}; + +static const int vsim_voltages[] = { + 1700000, + 1800000, + 2700000, + 3000000, + 3100000, +}; + +static const int vibr_voltages[] = { + 1200000, + 1300000, + 1500000, + 1800000, + 2000000, + 2800000, + 3000000, + 3300000, +}; + +static const int vmc_voltages[] = { + 1800000, + 2900000, + 3000000, + 3300000, +}; + +static const int vmch_voltages[] = { + 2900000, + 3000000, + 3300000, +}; + +static const int vemc_voltages[] = { + 2900000, + 3000000, + 3300000, +}; + +static const int vusb_voltages[] = { + 3000000, + 3100000, +}; + +static const int vmc_idx[] = { + 4, 10, 11, 13, +}; + +static const int vmch_idx[] = { + 2, 3, 5, +}; + +static const int vemc_idx[] = { + 2, 3, 5, +}; + +static const int vusb_idx[] = { + 3, 4, +}; + +static const int vxo22_idx[] = { + 0, 2, +}; + +static const int vefuse_idx[] = { + 0, 1, 2, 4, 9, 10, 11, 13, +}; + +static const int vcn33_idx[] = { + 1, 2, 3, +}; + +static const int vcama_idx[] = { + 7, 10, +}; + +static const int vcamd_idx[] = { + 4, 5, 6, 7, 9, 12, +}; + +static const int vldo28_idx[] = { + 1, 3, +}; + +static const int vdram_idx[] = { + 1, 2, +}; + +static const int vsim_idx[] = { + 3, 4, 8, 11, 12, +}; + +static const int vibr_idx[] = { + 0, 1, 2, 4, 5, 9, 11, 13, +}; + +static const struct linear_range buck_volt_range1[] = { + REGULATOR_LINEAR_RANGE(518750, 0, 0x7f, 6250), +}; + +static const struct linear_range buck_volt_range2[] = { + REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250), +}; + +static const struct linear_range buck_volt_range3[] = { + REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000), +}; + +static const struct linear_range buck_volt_range4[] = { + REGULATOR_LINEAR_RANGE(1200000, 0, 0x7f, 12500), +}; + +/* The array is indexed by id(MT6357_ID_XXX) */ +static struct mt6357_regulator_info mt6357_regulators[] = { + /* Bucks */ + MT6357_BUCK("buck-vcore", VCORE, 518750, 1312500, 6250, + buck_volt_range1, MT6357_BUCK_VCORE_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vproc", VPROC, 518750, 1312500, 6250, + buck_volt_range1, MT6357_BUCK_VPROC_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vmodem", VMODEM, 500000, 1293750, 6250, + buck_volt_range2, MT6357_BUCK_VMODEM_ELR0, 0x7f, 0x7f), + MT6357_BUCK("buck-vpa", VPA, 500000, 3650000, 50000, + buck_volt_range3, MT6357_BUCK_VPA_CON1, 0x3f, 0x3f), + MT6357_BUCK("buck-vs1", VS1, 1200000, 2787500, 12500, + buck_volt_range4, MT6357_BUCK_VS1_ELR0, 0x7f, 0x7f), + + /* LDOs */ + MT6357_LDO("ldo-vcama", VCAMA, vcama_voltages, vcama_idx, + MT6357_LDO_VCAMA_CON0, MT6357_VCAMA_ANA_CON0, 0xf), + MT6357_LDO("ldo-vcamd", VCAMD, vcamd_voltages, vcamd_idx, + MT6357_LDO_VCAMD_CON0, MT6357_VCAMD_ANA_CON0, 0xf), + MT6357_LDO("ldo-vcn33-bt", VCN33_BT, vcn33_voltages, vcn33_idx, + MT6357_LDO_VCN33_CON0_0, MT6357_VCN33_ANA_CON0, 0x3), + MT6357_LDO("ldo-vcn33-wifi", VCN33_WIFI, vcn33_voltages, vcn33_idx, + MT6357_LDO_VCN33_CON0_1, MT6357_VCN33_ANA_CON0, 0x3), + MT6357_LDO("ldo-vdram", VDRAM, vdram_voltages, vdram_idx, + MT6357_LDO_VDRAM_CON0, MT6357_VDRAM_ELR_2, 0x3), + MT6357_LDO("ldo-vefuse", VEFUSE, vefuse_voltages, vefuse_idx, + MT6357_LDO_VEFUSE_CON0, MT6357_VEFUSE_ANA_CON0, 0xf), + MT6357_LDO("ldo-vemc", VEMC, vemc_voltages, vemc_idx, + MT6357_LDO_VEMC_CON0, MT6357_VEMC_ANA_CON0, 0x7), + MT6357_LDO("ldo-vibr", VIBR, vibr_voltages, vibr_idx, + MT6357_LDO_VIBR_CON0, MT6357_VIBR_ANA_CON0, 0xf), + MT6357_LDO("ldo-vldo28", VLDO28, vldo28_voltages, vldo28_idx, + MT6357_LDO_VLDO28_CON0_0, MT6357_VLDO28_ANA_CON0, 0x3), + MT6357_LDO("ldo-vmc", VMC, vmc_voltages, vmc_idx, + MT6357_LDO_VMC_CON0, MT6357_VMC_ANA_CON0, 0xf), + MT6357_LDO("ldo-vmch", VMCH, vmch_voltages, vmch_idx, + MT6357_LDO_VMCH_CON0, MT6357_VMCH_ANA_CON0, 0x7), + MT6357_LDO("ldo-vsim1", VSIM1, vsim_voltages, vsim_idx, + MT6357_LDO_VSIM1_CON0, MT6357_VSIM1_ANA_CON0, 0xf), + MT6357_LDO("ldo-vsim2", VSIM2, vsim_voltages, vsim_idx, + MT6357_LDO_VSIM2_CON0, MT6357_VSIM2_ANA_CON0, 0xf), + MT6357_LDO("ldo-vusb33", VUSB33, vusb_voltages, vusb_idx, + MT6357_LDO_VUSB33_CON0_0, MT6357_VUSB33_ANA_CON0, 0x7), + MT6357_LDO("ldo-vxo22", VXO22, vxo22_voltages, vxo22_idx, + MT6357_LDO_VXO22_CON0, MT6357_VXO22_ANA_CON0, 0x3), + + MT6357_LDO1("ldo-vsram-proc", VSRAM_PROC, 518750, 1312500, 6250, + buck_volt_range1, MT6357_LDO_VSRAM_PROC_CON0, + MT6357_LDO_VSRAM_CON0, 0x7f), + MT6357_LDO1("ldo-vsram-others", VSRAM_OTHERS, 518750, 1312500, 6250, + buck_volt_range1, MT6357_LDO_VSRAM_OTHERS_CON0, + MT6357_LDO_VSRAM_CON1, 0x7f), + + MT6357_REG_FIXED("ldo-vaud28", VAUD28, 2800000), + MT6357_REG_FIXED("ldo-vaux18", VAUX18, 1800000), + MT6357_REG_FIXED("ldo-vcamio18", VCAMIO, 1800000), + MT6357_REG_FIXED("ldo-vcn18", VCN18, 1800000), + MT6357_REG_FIXED("ldo-vcn28", VCN28, 2800000), + MT6357_REG_FIXED("ldo-vfe28", VFE28, 2800000), + MT6357_REG_FIXED("ldo-vio18", VIO18, 1800000), + MT6357_REG_FIXED("ldo-vio28", VIO28, 2800000), + MT6357_REG_FIXED("ldo-vrf12", VRF12, 1200000), + MT6357_REG_FIXED("ldo-vrf18", VRF18, 1800000), +}; + +static int mt6357_regulator_probe(struct platform_device *pdev) +{ + struct mt6397_chip *mt6357 = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = {}; + struct regulator_dev *rdev; + int i; + + pdev->dev.of_node = pdev->dev.parent->of_node; + + for (i = 0; i < MT6357_MAX_REGULATOR; i++) { + config.dev = &pdev->dev; + config.driver_data = &mt6357_regulators[i]; + config.regmap = mt6357->regmap; + + rdev = devm_regulator_register(&pdev->dev, + &mt6357_regulators[i].desc, + &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register %s\n", + mt6357_regulators[i].desc.name); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static const struct platform_device_id mt6357_platform_ids[] = { + { "mt6357-regulator" }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(platform, mt6357_platform_ids); + +static struct platform_driver mt6357_regulator_driver = { + .driver = { + .name = "mt6357-regulator", + }, + .probe = mt6357_regulator_probe, + .id_table = mt6357_platform_ids, +}; + +module_platform_driver(mt6357_regulator_driver); + +MODULE_AUTHOR("Fabien Parent "); +MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6357 PMIC"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/regulator/mt6357-regulator.h b/include/linux/regulator/mt6357-regulator.h new file mode 100644 index 000000000000..238b1ee77ea6 --- /dev/null +++ b/include/linux/regulator/mt6357-regulator.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2022 MediaTek Inc. + */ + +#ifndef __LINUX_REGULATOR_MT6357_H +#define __LINUX_REGULATOR_MT6357_H + +enum { + /* Bucks */ + MT6357_ID_VCORE, + MT6357_ID_VMODEM, + MT6357_ID_VPA, + MT6357_ID_VPROC, + MT6357_ID_VS1, + + /* LDOs */ + MT6357_ID_VAUX18, + MT6357_ID_VAUD28, + MT6357_ID_VCAMA, + MT6357_ID_VCAMD, + MT6357_ID_VCAMIO, + MT6357_ID_VCN18, + MT6357_ID_VCN28, + MT6357_ID_VCN33_BT, + MT6357_ID_VCN33_WIFI, + MT6357_ID_VDRAM, + MT6357_ID_VEFUSE, + MT6357_ID_VEMC, + MT6357_ID_VFE28, + MT6357_ID_VIBR, + MT6357_ID_VIO18, + MT6357_ID_VIO28, + MT6357_ID_VLDO28, + MT6357_ID_VMC, + MT6357_ID_VMCH, + MT6357_ID_VRF12, + MT6357_ID_VRF18, + MT6357_ID_VSIM1, + MT6357_ID_VSIM2, + MT6357_ID_VSRAM_OTHERS, + MT6357_ID_VSRAM_PROC, + MT6357_ID_VUSB33, + MT6357_ID_VXO22, + + MT6357_ID_RG_MAX, +}; + +#define MT6357_MAX_REGULATOR MT6357_ID_RG_MAX + +#endif /* __LINUX_REGULATOR_MT6357_H */ -- 2.36.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel