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[81.185.169.34]) by smtp.gmail.com with ESMTPSA id j7sm14106305wrn.81.2020.10.24.13.03.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Oct 2020 13:03:07 -0700 (PDT) From: Fabien Parent To: linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 1/2] dt-bindings: regulator: add support for MT6392 Date: Sat, 24 Oct 2020 22:03:03 +0200 Message-Id: <20201024200304.1427864-1-fparent@baylibre.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201024_160312_500348_12107820 X-CRM114-Status: GOOD ( 13.02 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:344 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Herring , lgirdwood@gmail.com, robh+dt@kernel.org, Fabien Parent , broonie@kernel.org, matthias.bgg@gmail.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org Add binding documentation of the regulator for MT6392 SoCs. Signed-off-by: Fabien Parent Reviewed-by: Rob Herring --- v5: * No change v4: * No change v3: * No change v2: * Use 'pmic' as node name for the pmic. * Use 'regulators' as node name for the regulators * use dash instead of underscore for regulator's node names. .../bindings/regulator/mt6392-regulator.txt | 220 ++++++++++++++++++ 1 file changed, 220 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/mt6392-regulator.txt diff --git a/Documentation/devicetree/bindings/regulator/mt6392-regulator.txt b/Documentation/devicetree/bindings/regulator/mt6392-regulator.txt new file mode 100644 index 000000000000..d03c0707fabc --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/mt6392-regulator.txt @@ -0,0 +1,220 @@ +Mediatek MT6392 Regulator + +Required properties: +- compatible: "mediatek,mt6392-regulator" +- mt6392regulator: List of regulators provided by this controller. It is named + according to its regulator type, buck_ and ldo_. + The definition for each of these nodes is defined using the standard binding + for regulators at Documentation/devicetree/bindings/regulator/regulator.txt. + +The valid names for regulators are:: +BUCK: + buck_vproc, buck_vsys, buck_vcore +LDO: + ldo_vxo22, ldo_vaud22, ldo_vcama, ldo_vaud28, ldo_vadc18, ldo_vcn35, + ldo_vio28. ldo_vusb, ldo_vmc, ldo_vmch, ldo_vemc3v3, ldo_vgp1, ldo_vgp2, + ldo_vcn18, ldo_vcamaf, ldo_vm, ldo_vio18, ldo_vcamd, ldo_vcamio, ldo_vm25, + ldo_vefuse + +Example: + pmic { + compatible = "mediatek,mt6392", "mediatek,mt6323"; + mediatek,system-power-controller; + + regulator { + compatible = "mediatek,mt6392-regulator"; + + mt6392_vproc_reg: buck-vproc { + regulator-name = "buck_vproc"; + regulator-min-microvolt = < 700000>; + regulator-max-microvolt = <1350000>; + regulator-ramp-delay = <12500>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vsys_reg: buck-vsys { + regulator-name = "buck_vsys"; + regulator-min-microvolt = <1400000>; + regulator-max-microvolt = <2987500>; + regulator-ramp-delay = <25000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vcore_reg: buck-vcore { + regulator-name = "buck_vcore"; + regulator-min-microvolt = < 700000>; + regulator-max-microvolt = <1350000>; + regulator-ramp-delay = <12500>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vxo22_reg: ldo-vxo22 { + regulator-name = "ldo_vxo22"; + regulator-min-microvolt = <2200000>; + regulator-max-microvolt = <2200000>; + regulator-enable-ramp-delay = <110>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vaud22_reg: ldo-vaud22 { + regulator-name = "ldo_vaud22"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2200000>; + regulator-enable-ramp-delay = <264>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vcama_reg: ldo-vcama { + regulator-name = "ldo_vcama"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vaud28_reg: ldo-vaud28 { + regulator-name = "ldo_vaud28"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + regulator-enable-ramp-delay = <264>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vadc18_reg: ldo-vadc18 { + regulator-name = "ldo_vadc18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-enable-ramp-delay = <264>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vcn35_reg: ldo-vcn35 { + regulator-name = "ldo_vcn35"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3600000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vio28_reg: ldo-vio28 { + regulator-name = "ldo_vio28"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + regulator-enable-ramp-delay = <264>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vusb_reg: ldo-vusb { + regulator-name = "ldo_vusb"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-enable-ramp-delay = <264>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vmc_reg: ldo-vmc { + regulator-name = "ldo_vmc"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-enable-ramp-delay = <264>; + regulator-boot-on; + }; + + mt6392_vmch_reg: ldo-vmch { + regulator-name = "ldo_vmch"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3300000>; + regulator-enable-ramp-delay = <264>; + regulator-boot-on; + }; + + mt6392_vemc3v3_reg: ldo-vemc3v3 { + regulator-name = "ldo_vemc3v3"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3300000>; + regulator-enable-ramp-delay = <264>; + regulator-boot-on; + }; + + mt6392_vgp1_reg: ldo-vgp1 { + regulator-name = "ldo_vgp1"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3300000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vgp2_reg: ldo-vgp2 { + regulator-name = "ldo_vgp2"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3300000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vcn18_reg: ldo-vcn18 { + regulator-name = "ldo_vcn18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vcamaf_reg: ldo-vcamaf { + regulator-name = "ldo_vcamaf"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3300000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vm_reg: ldo-vm { + regulator-name = "ldo_vm"; + regulator-min-microvolt = <1240000>; + regulator-max-microvolt = <1390000>; + regulator-enable-ramp-delay = <264>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vio18_reg: ldo-vio18 { + regulator-name = "ldo_vio18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-enable-ramp-delay = <264>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vcamd_reg: ldo-vcamd { + regulator-name = "ldo_vcamd"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1800000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vcamio_reg: ldo-vcamio { + regulator-name = "ldo_vcamio"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vm25_reg: ldo-vm25 { + regulator-name = "ldo_vm25"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; + regulator-enable-ramp-delay = <264>; + }; + + mt6392_vefuse_reg: ldo-vefuse { + regulator-name = "ldo_vefuse"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2000000>; + regulator-enable-ramp-delay = <264>; + }; + }; + }; From patchwork Sat Oct 24 20:03:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabien Parent X-Patchwork-Id: 11854965 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4533661C for ; 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[81.185.169.34]) by smtp.gmail.com with ESMTPSA id j7sm14106305wrn.81.2020.10.24.13.03.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Oct 2020 13:03:09 -0700 (PDT) From: Fabien Parent To: linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 2/2] regulator: mt6392: Add support for MT6392 regulator Date: Sat, 24 Oct 2020 22:03:04 +0200 Message-Id: <20201024200304.1427864-2-fparent@baylibre.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201024200304.1427864-1-fparent@baylibre.com> References: <20201024200304.1427864-1-fparent@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201024_160311_971512_F8FA19FF X-CRM114-Status: GOOD ( 25.09 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:442 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: matthias.bgg@gmail.com, Fabien Parent , broonie@kernel.org, robh+dt@kernel.org, lgirdwood@gmail.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org The MT6392 is a regulator found on boards based on the MediaTek MT8167, MT8516, and probably other SoCs. It is a so called PMIC and connectcts as a slave to a SoC using SPI, wrapped inside PWRAP. Signed-off-by: Fabien Parent --- V5: * Removed unneeded code * Fix indentation * Rebased * Switched some regulator to be linear * Use C++ style header style * Fix copyrights V4: * No change V3: * fix regulator's of_match following the renaming of the of nodes. V2: * no changes drivers/regulator/Kconfig | 9 + drivers/regulator/Makefile | 1 + drivers/regulator/mt6392-regulator.c | 454 +++++++++++++++++++++ include/linux/regulator/mt6392-regulator.h | 40 ++ 4 files changed, 504 insertions(+) create mode 100644 drivers/regulator/mt6392-regulator.c create mode 100644 include/linux/regulator/mt6392-regulator.h diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 020a00d6696b..e689c5a85197 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -739,6 +739,15 @@ config REGULATOR_MT6380 This driver supports the control of different power rails of device through regulator interface. +config REGULATOR_MT6392 + tristate "MediaTek MT6392 PMIC" + depends on MFD_MT6397 + help + Say y here to select this option to enable the power regulator of + MediaTek MT6392 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 6ebae516258e..1bac57a5bfcf 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -91,6 +91,7 @@ obj-$(CONFIG_REGULATOR_MT6323) += mt6323-regulator.o obj-$(CONFIG_REGULATOR_MT6358) += mt6358-regulator.o obj-$(CONFIG_REGULATOR_MT6360) += mt6360-regulator.o obj-$(CONFIG_REGULATOR_MT6380) += mt6380-regulator.o +obj-$(CONFIG_REGULATOR_MT6392) += mt6392-regulator.o obj-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o obj-$(CONFIG_REGULATOR_QCOM_LABIBB) += qcom-labibb-regulator.o obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o diff --git a/drivers/regulator/mt6392-regulator.c b/drivers/regulator/mt6392-regulator.c new file mode 100644 index 000000000000..25e620944b2a --- /dev/null +++ b/drivers/regulator/mt6392-regulator.c @@ -0,0 +1,454 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2020 MediaTek Inc. +// Copyright (c) 2020 BayLibre, SAS. +// Author: Chen Zhong +// Author: Fabien Parent +// +// Based on mt6397-regulator.c + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MT6392_BUCK_MODE_AUTO 0 +#define MT6392_BUCK_MODE_FORCE_PWM 1 +#define MT6392_LDO_MODE_NORMAL 0 +#define MT6392_LDO_MODE_LP 1 + +/* + * MT6392 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 mt6392_regulator_info { + struct regulator_desc desc; + u32 qi; + u32 vselon_reg; + u32 vselctrl_reg; + u32 vselctrl_mask; + u32 modeset_reg; + u32 modeset_mask; +}; + +#define MT6392_BUCK(match, vreg, min, max, step, volt_ranges, enreg, \ + vosel, vosel_mask, voselon, vosel_ctrl, \ + _modeset_reg, _modeset_mask) \ +[MT6392_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .ops = &mt6392_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6392_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), \ + .modeset_reg = _modeset_reg, \ + .modeset_mask = _modeset_mask, \ +} + +#define MT6392_LDO(match, vreg, ldo_volt_table, enreg, enbit, vosel, \ + vosel_mask, _modeset_reg, _modeset_mask) \ +[MT6392_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .ops = &mt6392_volt_table_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6392_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 MT6392_LDO_LINEAR(match, vreg, min, max, step, volt_ranges, \ + enreg, enbit, vosel, vosel_mask, _modeset_reg, \ + _modeset_mask) \ +[MT6392_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .ops = &mt6392_volt_ldo_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6392_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(enbit), \ + }, \ + .qi = BIT(15), \ + .modeset_reg = _modeset_reg, \ + .modeset_mask = _modeset_mask, \ +} + +#define MT6392_REG_FIXED(match, vreg, enreg, enbit, volt, \ + _modeset_reg, _modeset_mask) \ +[MT6392_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .ops = &mt6392_volt_fixed_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6392_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, \ +} + +#define MT6392_REG_FIXED_NO_MODE(match, vreg, enreg, enbit, volt) \ +[MT6392_ID_##vreg] = { \ + .desc = { \ + .name = #vreg, \ + .of_match = of_match_ptr(match), \ + .ops = &mt6392_volt_fixed_no_mode_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MT6392_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = 1, \ + .enable_reg = enreg, \ + .enable_mask = BIT(enbit), \ + .min_uV = volt, \ + }, \ + .qi = BIT(15), \ +} + +static const struct linear_range buck_volt_range1[] = { + REGULATOR_LINEAR_RANGE(700000, 0, 0x7f, 6250), +}; + +static const struct linear_range buck_volt_range2[] = { + REGULATOR_LINEAR_RANGE(1400000, 0, 0x7f, 12500), +}; + +static const u32 ldo_volt_table1[] = { + 1800000, 1900000, 2000000, 2200000, +}; + +static const struct linear_range ldo_volt_range2[] = { + REGULATOR_LINEAR_RANGE(3300000, 0, 3, 100000), +}; + +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[] = { + 1240000, 1390000, +}; + +static const u32 ldo_volt_table7[] = { + 1200000, 1300000, 1500000, 1800000, +}; + +static const u32 ldo_volt_table8[] = { + 1800000, 2000000, +}; + +static int mt6392_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + int ret, val = 0; + struct mt6392_regulator_info *info = rdev_get_drvdata(rdev); + + switch (mode) { + case REGULATOR_MODE_FAST: + val = MT6392_BUCK_MODE_FORCE_PWM; + break; + case REGULATOR_MODE_NORMAL: + val = MT6392_BUCK_MODE_AUTO; + 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 mt6392_buck_get_mode(struct regulator_dev *rdev) +{ + unsigned int val; + unsigned int mode; + int ret; + struct mt6392_regulator_info *info = rdev_get_drvdata(rdev); + + 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_FAST; + else + mode = REGULATOR_MODE_NORMAL; + + return mode; +} + +static int mt6392_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + int ret, val = 0; + struct mt6392_regulator_info *info = rdev_get_drvdata(rdev); + + switch (mode) { + case REGULATOR_MODE_STANDBY: + val = MT6392_LDO_MODE_LP; + break; + case REGULATOR_MODE_NORMAL: + val = MT6392_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 mt6392_ldo_get_mode(struct regulator_dev *rdev) +{ + unsigned int val; + unsigned int mode; + int ret; + struct mt6392_regulator_info *info = rdev_get_drvdata(rdev); + + 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 const struct regulator_ops mt6392_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, + .set_mode = mt6392_buck_set_mode, + .get_mode = mt6392_buck_get_mode, +}; + +static const struct regulator_ops mt6392_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, + .set_mode = mt6392_ldo_set_mode, + .get_mode = mt6392_ldo_get_mode, +}; + +static const struct regulator_ops mt6392_volt_ldo_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, + .set_mode = mt6392_ldo_set_mode, + .get_mode = mt6392_ldo_get_mode, +}; + +static const struct regulator_ops mt6392_volt_fixed_ops = { + .list_voltage = regulator_list_voltage_linear, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_mode = mt6392_ldo_set_mode, + .get_mode = mt6392_ldo_get_mode, +}; + +static const struct regulator_ops mt6392_volt_fixed_no_mode_ops = { + .list_voltage = regulator_list_voltage_linear, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +/* The array is indexed by id(MT6392_ID_XXX) */ +static struct mt6392_regulator_info mt6392_regulators[] = { + MT6392_BUCK("buck-vproc", VPROC, 700000, 1493750, 6250, + buck_volt_range1, MT6392_VPROC_CON7, MT6392_VPROC_CON9, 0x7f, + MT6392_VPROC_CON10, MT6392_VPROC_CON5, MT6392_VPROC_CON2, + 0x100), + MT6392_BUCK("buck-vsys", VSYS, 1400000, 2987500, 12500, + buck_volt_range2, MT6392_VSYS_CON7, MT6392_VSYS_CON9, 0x7f, + MT6392_VSYS_CON10, MT6392_VSYS_CON5, MT6392_VSYS_CON2, 0x100), + MT6392_BUCK("buck-vcore", VCORE, 700000, 1493750, 6250, + buck_volt_range1, MT6392_VCORE_CON7, MT6392_VCORE_CON9, 0x7f, + MT6392_VCORE_CON10, MT6392_VCORE_CON5, MT6392_VCORE_CON2, + 0x100), + MT6392_REG_FIXED("ldo-vxo22", VXO22, MT6392_ANALDO_CON1, 10, 2200000, + MT6392_ANALDO_CON1, 0x2), + MT6392_LDO("ldo-vaud22", VAUD22, ldo_volt_table1, + MT6392_ANALDO_CON2, 14, MT6392_ANALDO_CON8, 0x60, + MT6392_ANALDO_CON2, 0x2), + MT6392_REG_FIXED_NO_MODE("ldo-vcama", VCAMA, MT6392_ANALDO_CON4, 15, + 2800000), + MT6392_REG_FIXED("ldo-vaud28", VAUD28, MT6392_ANALDO_CON23, 14, 2800000, + MT6392_ANALDO_CON23, 0x2), + MT6392_REG_FIXED("ldo-vadc18", VADC18, MT6392_ANALDO_CON25, 14, 1800000, + MT6392_ANALDO_CON25, 0x2), + MT6392_LDO_LINEAR("ldo-vcn35", VCN35, 3300000, 3600000, 100000, + ldo_volt_range2, MT6392_ANALDO_CON21, 12, MT6392_ANALDO_CON16, + 0xC, MT6392_ANALDO_CON21, 0x2), + MT6392_REG_FIXED("ldo-vio28", VIO28, MT6392_DIGLDO_CON0, 14, 2800000, + MT6392_DIGLDO_CON0, 0x2), + MT6392_REG_FIXED("ldo-vusb", VUSB, MT6392_DIGLDO_CON2, 14, 3300000, + MT6392_DIGLDO_CON2, 0x2), + MT6392_LDO("ldo-vmc", VMC, ldo_volt_table3, + MT6392_DIGLDO_CON3, 12, MT6392_DIGLDO_CON24, 0x10, + MT6392_DIGLDO_CON3, 0x2), + MT6392_LDO("ldo-vmch", VMCH, ldo_volt_table4, + MT6392_DIGLDO_CON5, 14, MT6392_DIGLDO_CON26, 0x80, + MT6392_DIGLDO_CON5, 0x2), + MT6392_LDO("ldo-vemc3v3", VEMC3V3, ldo_volt_table4, + MT6392_DIGLDO_CON6, 14, MT6392_DIGLDO_CON27, 0x80, + MT6392_DIGLDO_CON6, 0x2), + MT6392_LDO("ldo-vgp1", VGP1, ldo_volt_table5, + MT6392_DIGLDO_CON7, 15, MT6392_DIGLDO_CON28, 0xE0, + MT6392_DIGLDO_CON7, 0x2), + MT6392_LDO("ldo-vgp2", VGP2, ldo_volt_table5, + MT6392_DIGLDO_CON8, 15, MT6392_DIGLDO_CON29, 0xE0, + MT6392_DIGLDO_CON8, 0x2), + MT6392_REG_FIXED("ldo-vcn18", VCN18, MT6392_DIGLDO_CON11, 14, 1800000, + MT6392_DIGLDO_CON11, 0x2), + MT6392_LDO("ldo-vcamaf", VCAMAF, ldo_volt_table5, + MT6392_DIGLDO_CON31, 15, MT6392_DIGLDO_CON32, 0xE0, + MT6392_DIGLDO_CON31, 0x2), + MT6392_LDO("ldo-vm", VM, ldo_volt_table6, + MT6392_DIGLDO_CON47, 14, MT6392_DIGLDO_CON48, 0x30, + MT6392_DIGLDO_CON47, 0x2), + MT6392_REG_FIXED("ldo-vio18", VIO18, MT6392_DIGLDO_CON49, 14, 1800000, + MT6392_DIGLDO_CON49, 0x2), + MT6392_LDO("ldo-vcamd", VCAMD, ldo_volt_table7, + MT6392_DIGLDO_CON51, 14, MT6392_DIGLDO_CON52, 0x60, + MT6392_DIGLDO_CON51, 0x2), + MT6392_REG_FIXED("ldo-vcamio", VCAMIO, MT6392_DIGLDO_CON53, 14, 1800000, + MT6392_DIGLDO_CON53, 0x2), + MT6392_REG_FIXED("ldo-vm25", VM25, MT6392_DIGLDO_CON55, 14, 2500000, + MT6392_DIGLDO_CON55, 0x2), + MT6392_LDO("ldo-vefuse", VEFUSE, ldo_volt_table8, + MT6392_DIGLDO_CON57, 14, MT6392_DIGLDO_CON58, 0x10, + MT6392_DIGLDO_CON57, 0x2), +}; + +static int mt6392_regulator_probe(struct platform_device *pdev) +{ + struct mt6397_chip *mt6392 = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = {}; + struct regulator_dev *rdev; + int i; + + for (i = 0; i < MT6392_MAX_REGULATOR; i++) { + config.dev = &pdev->dev; + config.driver_data = &mt6392_regulators[i]; + config.regmap = mt6392->regmap; + + rdev = devm_regulator_register(&pdev->dev, + &mt6392_regulators[i].desc, + &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register %s\n", + mt6392_regulators[i].desc.name); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static const struct platform_device_id mt6392_platform_ids[] = { + {"mt6392-regulator", 0}, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(platform, mt6392_platform_ids); + +static struct platform_driver mt6392_regulator_driver = { + .driver = { + .name = "mt6392-regulator", + }, + .probe = mt6392_regulator_probe, + .id_table = mt6392_platform_ids, +}; + +module_platform_driver(mt6392_regulator_driver); + +MODULE_AUTHOR("Chen Zhong "); +MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6392 PMIC"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/regulator/mt6392-regulator.h b/include/linux/regulator/mt6392-regulator.h new file mode 100644 index 000000000000..dfcbcacb5ad4 --- /dev/null +++ b/include/linux/regulator/mt6392-regulator.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2019 MediaTek Inc. + * Author: Chen Zhong + */ + +#ifndef __LINUX_REGULATOR_MT6392_H +#define __LINUX_REGULATOR_MT6392_H + +enum { + MT6392_ID_VPROC = 0, + MT6392_ID_VSYS, + MT6392_ID_VCORE, + MT6392_ID_VXO22, + MT6392_ID_VAUD22, + MT6392_ID_VCAMA, + MT6392_ID_VAUD28, + MT6392_ID_VADC18, + MT6392_ID_VCN35, + MT6392_ID_VIO28, + MT6392_ID_VUSB = 10, + MT6392_ID_VMC, + MT6392_ID_VMCH, + MT6392_ID_VEMC3V3, + MT6392_ID_VGP1, + MT6392_ID_VGP2, + MT6392_ID_VCN18, + MT6392_ID_VCAMAF, + MT6392_ID_VM, + MT6392_ID_VIO18, + MT6392_ID_VCAMD, + MT6392_ID_VCAMIO, + MT6392_ID_VM25, + MT6392_ID_VEFUSE, + MT6392_ID_RG_MAX, +}; + +#define MT6392_MAX_REGULATOR MT6392_ID_RG_MAX + +#endif /* __LINUX_REGULATOR_MT6392_H */