diff options
Diffstat (limited to 'target/linux/mediatek')
5 files changed, 746 insertions, 1 deletions
diff --git a/target/linux/mediatek/filogic/config-5.15 b/target/linux/mediatek/filogic/config-5.15 index 224d10d0e1..3e6a1654f2 100644 --- a/target/linux/mediatek/filogic/config-5.15 +++ b/target/linux/mediatek/filogic/config-5.15 @@ -16,7 +16,6 @@ CONFIG_ARCH_SUSPEND_POSSIBLE=y CONFIG_ARCH_WANTS_NO_INSTR=y CONFIG_ARM64=y CONFIG_ARM64_4K_PAGES=y -# CONFIG_ARM64_CNP is not set CONFIG_ARM64_CRYPTO=y CONFIG_ARM64_ERRATUM_843419=y CONFIG_ARM64_LD_HAS_FIX_ERRATUM_843419=y @@ -354,10 +353,12 @@ CONFIG_REED_SOLOMON=y CONFIG_REED_SOLOMON_DEC8=y CONFIG_REED_SOLOMON_ENC8=y CONFIG_REGMAP=y +CONFIG_REGMAP_I2C=y CONFIG_REGMAP_MMIO=y CONFIG_REGULATOR=y CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_MT6380=y +CONFIG_REGULATOR_RT5190A=y CONFIG_RESET_CONTROLLER=y CONFIG_RFS_ACCEL=y CONFIG_RODATA_FULL_DEFAULT_ENABLED=y diff --git a/target/linux/mediatek/mt7622/config-5.15 b/target/linux/mediatek/mt7622/config-5.15 index 79df71c990..30a5ff948f 100644 --- a/target/linux/mediatek/mt7622/config-5.15 +++ b/target/linux/mediatek/mt7622/config-5.15 @@ -377,6 +377,7 @@ CONFIG_REGMAP_MMIO=y CONFIG_REGULATOR=y CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_MT6380=y +# CONFIG_REGULATOR_RT5190A is not set CONFIG_RESET_CONTROLLER=y CONFIG_RFS_ACCEL=y CONFIG_RODATA_FULL_DEFAULT_ENABLED=y diff --git a/target/linux/mediatek/mt7623/config-5.15 b/target/linux/mediatek/mt7623/config-5.15 index af0a5c1939..039a904f19 100644 --- a/target/linux/mediatek/mt7623/config-5.15 +++ b/target/linux/mediatek/mt7623/config-5.15 @@ -472,6 +472,7 @@ CONFIG_REGULATOR_MT6323=y # CONFIG_REGULATOR_MT6358 is not set # CONFIG_REGULATOR_MT6380 is not set # CONFIG_REGULATOR_MT6397 is not set +# CONFIG_REGULATOR_RT5190A is not set # CONFIG_REGULATOR_QCOM_LABIBB is not set # CONFIG_REGULATOR_QCOM_SPMI is not set # CONFIG_REGULATOR_QCOM_USB_VBUS is not set diff --git a/target/linux/mediatek/patches-5.15/830-v5.18-regulator-Add-bindings-for-Richtek-RT5190A-PMIC.patch b/target/linux/mediatek/patches-5.15/830-v5.18-regulator-Add-bindings-for-Richtek-RT5190A-PMIC.patch new file mode 100644 index 0000000000..30891d3487 --- /dev/null +++ b/target/linux/mediatek/patches-5.15/830-v5.18-regulator-Add-bindings-for-Richtek-RT5190A-PMIC.patch @@ -0,0 +1,180 @@ +From b77e70f6b8f2cc62fba847f3008a430a09ef275d Mon Sep 17 00:00:00 2001 +From: ChiYuan Huang <cy_huang@richtek.com> +Date: Wed, 9 Mar 2022 16:01:42 +0800 +Subject: [PATCH 1/2] regulator: Add bindings for Richtek RT5190A PMIC + +Add bindings for Richtek RT5190A PMIC. + +Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> +Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> +Link: https://lore.kernel.org/r/1646812903-32496-2-git-send-email-u0084500@gmail.com +Signed-off-by: Mark Brown <broonie@kernel.org> +--- + .../regulator/richtek,rt5190a-regulator.yaml | 141 ++++++++++++++++++ + .../regulator/richtek,rt5190a-regulator.h | 15 ++ + 2 files changed, 156 insertions(+) + create mode 100644 Documentation/devicetree/bindings/regulator/richtek,rt5190a-regulator.yaml + create mode 100644 include/dt-bindings/regulator/richtek,rt5190a-regulator.h + +--- /dev/null ++++ b/Documentation/devicetree/bindings/regulator/richtek,rt5190a-regulator.yaml +@@ -0,0 +1,141 @@ ++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/regulator/richtek,rt5190a-regulator.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: Richtek RT5190A PMIC Regulator ++ ++maintainers: ++ - ChiYuan Huang <cy_huang@richtek.com> ++ ++description: | ++ The RT5190A integrates 1 channel buck controller, 3 channels high efficiency ++ synchronous buck converters, 1 LDO, I2C control interface and peripherial ++ logical control. ++ ++ It also supports mute AC OFF depop sound and quick setting storage while ++ input power is removed. ++ ++properties: ++ compatible: ++ enum: ++ - richtek,rt5190a ++ ++ reg: ++ maxItems: 1 ++ ++ interrupts: ++ maxItems: 1 ++ ++ vin2-supply: ++ description: phandle to buck2 input voltage. ++ ++ vin3-supply: ++ description: phandle to buck3 input voltage. ++ ++ vin4-supply: ++ description: phandle to buck4 input voltage. ++ ++ vinldo-supply: ++ description: phandle to ldo input voltage ++ ++ richtek,mute-enable: ++ description: | ++ The mute function uses 'mutein', 'muteout', and 'vdet' pins as the control ++ signal. When enabled, The normal behavior is to bypass the 'mutein' signal ++ 'muteout'. But if the power source removal is detected from 'vdet', ++ whatever the 'mutein' signal is, it will pull down the 'muteout' to force ++ speakers mute. this function is commonly used to prevent the speaker pop ++ noise during AC power turned off in the modern TV system design. ++ type: boolean ++ ++ regulators: ++ type: object ++ ++ patternProperties: ++ "^buck[1-4]$|^ldo$": ++ type: object ++ $ref: regulator.yaml# ++ description: | ++ regulator description for buck1 and buck4. ++ ++ properties: ++ regulator-allowed-modes: ++ description: | ++ buck operating mode, only buck1/4 support mode operating. ++ 0: auto mode ++ 1: force pwm mode ++ items: ++ enum: [0, 1] ++ ++ richtek,latchup-enable: ++ type: boolean ++ description: | ++ If specified, undervolt protection mode changes from the default ++ hiccup to latchup. ++ ++ unevaluatedProperties: false ++ ++ additionalProperties: false ++ ++required: ++ - compatible ++ - reg ++ - regulators ++ ++additionalProperties: false ++ ++examples: ++ - | ++ #include <dt-bindings/interrupt-controller/irq.h> ++ #include <dt-bindings/regulator/richtek,rt5190a-regulator.h> ++ ++ i2c { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ pmic@64 { ++ compatible = "richtek,rt5190a"; ++ reg = <0x64>; ++ interrupts-extended = <&gpio26 0 IRQ_TYPE_LEVEL_LOW>; ++ vin2-supply = <&rt5190_buck1>; ++ vin3-supply = <&rt5190_buck1>; ++ vin4-supply = <&rt5190_buck1>; ++ ++ regulators { ++ rt5190_buck1: buck1 { ++ regulator-name = "rt5190a-buck1"; ++ regulator-min-microvolt = <5090000>; ++ regulator-max-microvolt = <5090000>; ++ regulator-allowed-modes = <RT5190A_OPMODE_AUTO RT5190A_OPMODE_FPWM>; ++ regulator-boot-on; ++ }; ++ buck2 { ++ regulator-name = "rt5190a-buck2"; ++ regulator-min-microvolt = <600000>; ++ regulator-max-microvolt = <1400000>; ++ regulator-boot-on; ++ }; ++ buck3 { ++ regulator-name = "rt5190a-buck3"; ++ regulator-min-microvolt = <600000>; ++ regulator-max-microvolt = <1400000>; ++ regulator-boot-on; ++ }; ++ buck4 { ++ regulator-name = "rt5190a-buck4"; ++ regulator-min-microvolt = <850000>; ++ regulator-max-microvolt = <850000>; ++ regulator-allowed-modes = <RT5190A_OPMODE_AUTO RT5190A_OPMODE_FPWM>; ++ regulator-boot-on; ++ }; ++ ldo { ++ regulator-name = "rt5190a-ldo"; ++ regulator-min-microvolt = <1200000>; ++ regulator-max-microvolt = <1200000>; ++ regulator-boot-on; ++ }; ++ }; ++ }; ++ }; +--- /dev/null ++++ b/include/dt-bindings/regulator/richtek,rt5190a-regulator.h +@@ -0,0 +1,15 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++ ++#ifndef __DT_BINDINGS_RICHTEK_RT5190A_REGULATOR_H__ ++#define __DT_BINDINGS_RICHTEK_RT5190A_REGULATOR_H__ ++ ++/* ++ * BUCK/LDO mode constants which may be used in devicetree properties ++ * (eg. regulator-allowed-modes). ++ * See the manufacturer's datasheet for more information on these modes. ++ */ ++ ++#define RT5190A_OPMODE_AUTO 0 ++#define RT5190A_OPMODE_FPWM 1 ++ ++#endif diff --git a/target/linux/mediatek/patches-5.15/831-v5.18-regulator-rt5190a-Add-support-for-Richtek-RT5190A-PM.patch b/target/linux/mediatek/patches-5.15/831-v5.18-regulator-rt5190a-Add-support-for-Richtek-RT5190A-PM.patch new file mode 100644 index 0000000000..0e0f099e50 --- /dev/null +++ b/target/linux/mediatek/patches-5.15/831-v5.18-regulator-rt5190a-Add-support-for-Richtek-RT5190A-PM.patch @@ -0,0 +1,562 @@ +From 760423dfad53877b468490758fe7ea968ded9402 Mon Sep 17 00:00:00 2001 +From: ChiYuan Huang <cy_huang@richtek.com> +Date: Wed, 9 Mar 2022 16:01:43 +0800 +Subject: [PATCH 2/2] regulator: rt5190a: Add support for Richtek RT5190A PMIC + +Add support for Richtek RT5190A PMIC. + +Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> +Link: https://lore.kernel.org/r/1646812903-32496-3-git-send-email-u0084500@gmail.com +Signed-off-by: Mark Brown <broonie@kernel.org> +--- + drivers/regulator/Kconfig | 10 + + drivers/regulator/Makefile | 1 + + drivers/regulator/rt5190a-regulator.c | 513 ++++++++++++++++++++++++++ + 3 files changed, 524 insertions(+) + create mode 100644 drivers/regulator/rt5190a-regulator.c + +--- a/drivers/regulator/Kconfig ++++ b/drivers/regulator/Kconfig +@@ -1037,6 +1037,16 @@ config REGULATOR_RT5033 + RT5033 PMIC. The device supports multiple regulators like + current source, LDO and Buck. + ++config REGULATOR_RT5190A ++ tristate "Richtek RT5190A PMIC" ++ depends on I2C ++ select REGMAP_I2C ++ help ++ This adds support for voltage regulator in Richtek RT5190A PMIC. ++ It integratas 1 channel buck controller, 3 channels high efficiency ++ buck converters, 1 LDO, mute AC OFF depop function, with the general ++ I2C control interface. ++ + config REGULATOR_RT6160 + tristate "Richtek RT6160 BuckBoost voltage regulator" + depends on I2C +--- a/drivers/regulator/Makefile ++++ b/drivers/regulator/Makefile +@@ -125,6 +125,7 @@ obj-$(CONFIG_REGULATOR_ROHM) += rohm-reg + obj-$(CONFIG_REGULATOR_RT4801) += rt4801-regulator.o + obj-$(CONFIG_REGULATOR_RT4831) += rt4831-regulator.o + obj-$(CONFIG_REGULATOR_RT5033) += rt5033-regulator.o ++obj-$(CONFIG_REGULATOR_RT5190A) += rt5190a-regulator.o + obj-$(CONFIG_REGULATOR_RT6160) += rt6160-regulator.o + obj-$(CONFIG_REGULATOR_RT6245) += rt6245-regulator.o + obj-$(CONFIG_REGULATOR_RTMV20) += rtmv20-regulator.o +--- /dev/null ++++ b/drivers/regulator/rt5190a-regulator.c +@@ -0,0 +1,513 @@ ++// SPDX-License-Identifier: GPL-2.0+ ++ ++#include <dt-bindings/regulator/richtek,rt5190a-regulator.h> ++#include <linux/bits.h> ++#include <linux/i2c.h> ++#include <linux/interrupt.h> ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/property.h> ++#include <linux/regmap.h> ++#include <linux/regulator/driver.h> ++#include <linux/regulator/machine.h> ++#include <linux/regulator/of_regulator.h> ++ ++#define RT5190A_REG_MANUFACTURE 0x00 ++#define RT5190A_REG_BUCK2VSEL 0x04 ++#define RT5190A_REG_BUCK3VSEL 0x05 ++#define RT5190A_REG_DCDCCNTL 0x06 ++#define RT5190A_REG_ENABLE 0x07 ++#define RT5190A_REG_DISCHARGE 0x09 ++#define RT5190A_REG_PROTMODE 0x0A ++#define RT5190A_REG_MUTECNTL 0x0B ++#define RT5190A_REG_PGSTAT 0x0F ++#define RT5190A_REG_OVINT 0x10 ++#define RT5190A_REG_HOTDIEMASK 0x17 ++ ++#define RT5190A_VSEL_MASK GENMASK(6, 0) ++#define RT5190A_RID_BITMASK(rid) BIT(rid + 1) ++#define RT5190A_BUCK1_DISCHG_MASK GENMASK(1, 0) ++#define RT5190A_BUCK1_DISCHG_ONVAL 0x01 ++#define RT5190A_OVERVOLT_MASK GENMASK(7, 0) ++#define RT5190A_UNDERVOLT_MASK GENMASK(15, 8) ++#define RT5190A_CH234OT_MASK BIT(29) ++#define RT5190A_CHIPOT_MASK BIT(28) ++ ++#define RT5190A_BUCK23_MINUV 600000 ++#define RT5190A_BUCK23_MAXUV 1400000 ++#define RT5190A_BUCK23_STEPUV 10000 ++#define RT5190A_BUCK23_STEPNUM ((1400000 - 600000) / 10000 + 1) ++ ++enum { ++ RT5190A_IDX_BUCK1 = 0, ++ RT5190A_IDX_BUCK2, ++ RT5190A_IDX_BUCK3, ++ RT5190A_IDX_BUCK4, ++ RT5190A_IDX_LDO, ++ RT5190A_MAX_IDX ++}; ++ ++struct rt5190a_priv { ++ struct device *dev; ++ struct regmap *regmap; ++ struct regulator_desc rdesc[RT5190A_MAX_IDX]; ++ struct regulator_dev *rdev[RT5190A_MAX_IDX]; ++}; ++ ++static int rt5190a_get_error_flags(struct regulator_dev *rdev, ++ unsigned int *flags) ++{ ++ struct regmap *regmap = rdev_get_regmap(rdev); ++ int rid = rdev_get_id(rdev); ++ unsigned int pgood_stat; ++ int ret; ++ ++ ret = regmap_read(regmap, RT5190A_REG_PGSTAT, &pgood_stat); ++ if (ret) ++ return ret; ++ ++ if (!(pgood_stat & RT5190A_RID_BITMASK(rid))) ++ *flags = REGULATOR_ERROR_FAIL; ++ else ++ *flags = 0; ++ ++ return 0; ++} ++ ++static int rt5190a_fixed_buck_set_mode(struct regulator_dev *rdev, ++ unsigned int mode) ++{ ++ struct regmap *regmap = rdev_get_regmap(rdev); ++ int rid = rdev_get_id(rdev); ++ unsigned int mask = RT5190A_RID_BITMASK(rid), val; ++ ++ switch (mode) { ++ case REGULATOR_MODE_FAST: ++ val = mask; ++ break; ++ case REGULATOR_MODE_NORMAL: ++ val = 0; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ return regmap_update_bits(regmap, RT5190A_REG_DCDCCNTL, mask, val); ++} ++ ++static unsigned int rt5190a_fixed_buck_get_mode(struct regulator_dev *rdev) ++{ ++ struct regmap *regmap = rdev_get_regmap(rdev); ++ int rid = rdev_get_id(rdev); ++ unsigned int val; ++ int ret; ++ ++ ret = regmap_read(regmap, RT5190A_REG_DCDCCNTL, &val); ++ if (ret) { ++ dev_err(&rdev->dev, "Failed to get mode [%d]\n", ret); ++ return ret; ++ } ++ ++ if (val & RT5190A_RID_BITMASK(rid)) ++ return REGULATOR_MODE_FAST; ++ ++ return REGULATOR_MODE_NORMAL; ++} ++ ++static const struct regulator_ops rt5190a_ranged_buck_ops = { ++ .enable = regulator_enable_regmap, ++ .disable = regulator_disable_regmap, ++ .is_enabled = regulator_is_enabled_regmap, ++ .set_voltage_sel = regulator_set_voltage_sel_regmap, ++ .get_voltage_sel = regulator_get_voltage_sel_regmap, ++ .list_voltage = regulator_list_voltage_linear, ++ .set_active_discharge = regulator_set_active_discharge_regmap, ++ .get_error_flags = rt5190a_get_error_flags, ++}; ++ ++static const struct regulator_ops rt5190a_fixed_buck_ops = { ++ .enable = regulator_enable_regmap, ++ .disable = regulator_disable_regmap, ++ .is_enabled = regulator_is_enabled_regmap, ++ .set_active_discharge = regulator_set_active_discharge_regmap, ++ .set_mode = rt5190a_fixed_buck_set_mode, ++ .get_mode = rt5190a_fixed_buck_get_mode, ++ .get_error_flags = rt5190a_get_error_flags, ++}; ++ ++static const struct regulator_ops rt5190a_fixed_ldo_ops = { ++ .enable = regulator_enable_regmap, ++ .disable = regulator_disable_regmap, ++ .is_enabled = regulator_is_enabled_regmap, ++ .set_active_discharge = regulator_set_active_discharge_regmap, ++ .get_error_flags = rt5190a_get_error_flags, ++}; ++ ++static irqreturn_t rt5190a_irq_handler(int irq, void *data) ++{ ++ struct rt5190a_priv *priv = data; ++ __le32 raws; ++ unsigned int events, fields; ++ static const struct { ++ unsigned int bitmask; ++ unsigned int report; ++ } event_tbl[] = { ++ { RT5190A_OVERVOLT_MASK, REGULATOR_ERROR_REGULATION_OUT }, ++ { RT5190A_UNDERVOLT_MASK, REGULATOR_ERROR_UNDER_VOLTAGE } ++ }; ++ int i, j, ret; ++ ++ ret = regmap_raw_read(priv->regmap, RT5190A_REG_OVINT, &raws, ++ sizeof(raws)); ++ if (ret) { ++ dev_err(priv->dev, "Failed to read events\n"); ++ return IRQ_NONE; ++ } ++ ++ events = le32_to_cpu(raws); ++ ++ ret = regmap_raw_write(priv->regmap, RT5190A_REG_OVINT, &raws, ++ sizeof(raws)); ++ if (ret) ++ dev_err(priv->dev, "Failed to write-clear events\n"); ++ ++ /* Handle OV,UV events */ ++ for (i = 0; i < ARRAY_SIZE(event_tbl); i++) { ++ fields = events & event_tbl[i].bitmask; ++ fields >>= ffs(event_tbl[i].bitmask) - 1; ++ ++ for (j = 0; j < RT5190A_MAX_IDX; j++) { ++ if (!(fields & RT5190A_RID_BITMASK(j))) ++ continue; ++ ++ regulator_notifier_call_chain(priv->rdev[j], ++ event_tbl[i].report, ++ NULL); ++ } ++ } ++ ++ /* Handle CH234 OT event */ ++ if (events & RT5190A_CH234OT_MASK) { ++ for (j = RT5190A_IDX_BUCK2; j < RT5190A_IDX_LDO; j++) { ++ regulator_notifier_call_chain(priv->rdev[j], ++ REGULATOR_ERROR_OVER_TEMP, ++ NULL); ++ } ++ } ++ ++ /* Warning if CHIP OT occur */ ++ if (events & RT5190A_CHIPOT_MASK) ++ dev_warn(priv->dev, "CHIP overheat\n"); ++ ++ return IRQ_HANDLED; ++} ++ ++static unsigned int rt5190a_of_map_mode(unsigned int mode) ++{ ++ switch (mode) { ++ case RT5190A_OPMODE_AUTO: ++ return REGULATOR_MODE_NORMAL; ++ case RT5190A_OPMODE_FPWM: ++ return REGULATOR_MODE_FAST; ++ default: ++ return REGULATOR_MODE_INVALID; ++ } ++} ++ ++static int rt5190a_of_parse_cb(struct rt5190a_priv *priv, int rid, ++ struct of_regulator_match *match) ++{ ++ struct regulator_desc *desc = priv->rdesc + rid; ++ struct regulator_init_data *init_data = match->init_data; ++ struct device_node *np = match->of_node; ++ bool latchup_enable; ++ unsigned int mask = RT5190A_RID_BITMASK(rid), val; ++ ++ switch (rid) { ++ case RT5190A_IDX_BUCK1: ++ case RT5190A_IDX_BUCK4: ++ case RT5190A_IDX_LDO: ++ init_data->constraints.apply_uV = 0; ++ ++ if (init_data->constraints.min_uV == ++ init_data->constraints.max_uV) ++ desc->fixed_uV = init_data->constraints.min_uV; ++ else { ++ dev_err(priv->dev, ++ "Variable voltage for fixed regulator\n"); ++ return -EINVAL; ++ } ++ break; ++ default: ++ break; ++ } ++ ++ latchup_enable = of_property_read_bool(np, "richtek,latchup-enable"); ++ ++ /* latchup: 0, default hiccup: 1 */ ++ val = !latchup_enable ? mask : 0; ++ ++ return regmap_update_bits(priv->regmap, RT5190A_REG_PROTMODE, mask, val); ++} ++ ++static void rt5190a_fillin_regulator_desc(struct regulator_desc *desc, int rid) ++{ ++ static const char * const regu_name[] = { "buck1", "buck2", ++ "buck3", "buck4", ++ "ldo" }; ++ static const char * const supply[] = { NULL, "vin2", "vin3", "vin4", ++ "vinldo" }; ++ ++ desc->name = regu_name[rid]; ++ desc->supply_name = supply[rid]; ++ desc->owner = THIS_MODULE; ++ desc->type = REGULATOR_VOLTAGE; ++ desc->id = rid; ++ desc->enable_reg = RT5190A_REG_ENABLE; ++ desc->enable_mask = RT5190A_RID_BITMASK(rid); ++ desc->active_discharge_reg = RT5190A_REG_DISCHARGE; ++ desc->active_discharge_mask = RT5190A_RID_BITMASK(rid); ++ desc->active_discharge_on = RT5190A_RID_BITMASK(rid); ++ ++ switch (rid) { ++ case RT5190A_IDX_BUCK1: ++ desc->active_discharge_mask = RT5190A_BUCK1_DISCHG_MASK; ++ desc->active_discharge_on = RT5190A_BUCK1_DISCHG_ONVAL; ++ desc->n_voltages = 1; ++ desc->ops = &rt5190a_fixed_buck_ops; ++ desc->of_map_mode = rt5190a_of_map_mode; ++ break; ++ case RT5190A_IDX_BUCK2: ++ desc->vsel_reg = RT5190A_REG_BUCK2VSEL; ++ desc->vsel_mask = RT5190A_VSEL_MASK; ++ desc->min_uV = RT5190A_BUCK23_MINUV; ++ desc->uV_step = RT5190A_BUCK23_STEPUV; ++ desc->n_voltages = RT5190A_BUCK23_STEPNUM; ++ desc->ops = &rt5190a_ranged_buck_ops; ++ break; ++ case RT5190A_IDX_BUCK3: ++ desc->vsel_reg = RT5190A_REG_BUCK3VSEL; ++ desc->vsel_mask = RT5190A_VSEL_MASK; ++ desc->min_uV = RT5190A_BUCK23_MINUV; ++ desc->uV_step = RT5190A_BUCK23_STEPUV; ++ desc->n_voltages = RT5190A_BUCK23_STEPNUM; ++ desc->ops = &rt5190a_ranged_buck_ops; ++ break; ++ case RT5190A_IDX_BUCK4: ++ desc->n_voltages = 1; ++ desc->ops = &rt5190a_fixed_buck_ops; ++ desc->of_map_mode = rt5190a_of_map_mode; ++ break; ++ case RT5190A_IDX_LDO: ++ desc->n_voltages = 1; ++ desc->ops = &rt5190a_fixed_ldo_ops; ++ break; ++ } ++} ++ ++static struct of_regulator_match rt5190a_regulator_match[] = { ++ { .name = "buck1", }, ++ { .name = "buck2", }, ++ { .name = "buck3", }, ++ { .name = "buck4", }, ++ { .name = "ldo", } ++}; ++ ++static int rt5190a_parse_regulator_dt_data(struct rt5190a_priv *priv) ++{ ++ struct device_node *regulator_np; ++ struct regulator_desc *reg_desc; ++ struct of_regulator_match *match; ++ int i, ret; ++ ++ for (i = 0; i < RT5190A_MAX_IDX; i++) { ++ reg_desc = priv->rdesc + i; ++ match = rt5190a_regulator_match + i; ++ ++ rt5190a_fillin_regulator_desc(reg_desc, i); ++ ++ match->desc = reg_desc; ++ } ++ ++ regulator_np = of_get_child_by_name(priv->dev->of_node, "regulators"); ++ if (!regulator_np) { ++ dev_err(priv->dev, "Could not find 'regulators' node\n"); ++ return -ENODEV; ++ } ++ ++ ret = of_regulator_match(priv->dev, regulator_np, ++ rt5190a_regulator_match, ++ ARRAY_SIZE(rt5190a_regulator_match)); ++ ++ of_node_put(regulator_np); ++ ++ if (ret < 0) { ++ dev_err(priv->dev, ++ "Error parsing regulator init data: %d\n", ret); ++ return ret; ++ } ++ ++ for (i = 0; i < RT5190A_MAX_IDX; i++) { ++ match = rt5190a_regulator_match + i; ++ ++ ret = rt5190a_of_parse_cb(priv, i, match); ++ if (ret) { ++ dev_err(priv->dev, "Failed in [%d] of_parse_cb\n", i); ++ return ret; ++ } ++ } ++ ++ return 0; ++} ++ ++static const struct reg_sequence rt5190a_init_patch[] = { ++ { 0x09, 0x3d, }, ++ { 0x0a, 0x3e, }, ++ { 0x0b, 0x01, }, ++ { 0x10, 0xff, }, ++ { 0x11, 0xff, }, ++ { 0x12, 0xff, }, ++ { 0x13, 0xff, }, ++ { 0x14, 0, }, ++ { 0x15, 0, }, ++ { 0x16, 0x3e, }, ++ { 0x17, 0, } ++}; ++ ++static int rt5190a_device_initialize(struct rt5190a_priv *priv) ++{ ++ bool mute_enable; ++ int ret; ++ ++ ret = regmap_register_patch(priv->regmap, rt5190a_init_patch, ++ ARRAY_SIZE(rt5190a_init_patch)); ++ if (ret) { ++ dev_err(priv->dev, "Failed to do register patch\n"); ++ return ret; ++ } ++ ++ mute_enable = device_property_read_bool(priv->dev, ++ "richtek,mute-enable"); ++ ++ if (mute_enable) { ++ ret = regmap_write(priv->regmap, RT5190A_REG_MUTECNTL, 0x00); ++ if (ret) { ++ dev_err(priv->dev, "Failed to enable mute function\n"); ++ return ret; ++ } ++ } ++ ++ return 0; ++} ++ ++static int rt5190a_device_check(struct rt5190a_priv *priv) ++{ ++ u16 devid; ++ int ret; ++ ++ ret = regmap_raw_read(priv->regmap, RT5190A_REG_MANUFACTURE, &devid, ++ sizeof(devid)); ++ if (ret) ++ return ret; ++ ++ if (devid) { ++ dev_err(priv->dev, "Incorrect device id 0x%04x\n", devid); ++ return -ENODEV; ++ } ++ ++ return 0; ++} ++ ++static const struct regmap_config rt5190a_regmap_config = { ++ .reg_bits = 8, ++ .val_bits = 8, ++ .max_register = RT5190A_REG_HOTDIEMASK, ++}; ++ ++static int rt5190a_probe(struct i2c_client *i2c) ++{ ++ struct rt5190a_priv *priv; ++ struct regulator_config cfg = {}; ++ int i, ret; ++ ++ priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL); ++ if (!priv) ++ return -ENOMEM; ++ ++ priv->dev = &i2c->dev; ++ ++ priv->regmap = devm_regmap_init_i2c(i2c, &rt5190a_regmap_config); ++ if (IS_ERR(priv->regmap)) { ++ dev_err(&i2c->dev, "Failed to allocate regmap\n"); ++ return PTR_ERR(priv->regmap); ++ } ++ ++ ret = rt5190a_device_check(priv); ++ if (ret) { ++ dev_err(&i2c->dev, "Failed to check device %d\n", ret); ++ return ret; ++ } ++ ++ ret = rt5190a_device_initialize(priv); ++ if (ret) { ++ dev_err(&i2c->dev, "Failed to initialize the device\n"); ++ return ret; ++ } ++ ++ ret = rt5190a_parse_regulator_dt_data(priv); ++ if (ret) { ++ dev_err(&i2c->dev, "Failed to parse regulator dt\n"); ++ return ret; ++ } ++ ++ cfg.dev = &i2c->dev; ++ cfg.regmap = priv->regmap; ++ ++ for (i = 0; i < RT5190A_MAX_IDX; i++) { ++ struct regulator_desc *desc = priv->rdesc + i; ++ struct of_regulator_match *match = rt5190a_regulator_match + i; ++ ++ cfg.init_data = match->init_data; ++ cfg.of_node = match->of_node; ++ ++ priv->rdev[i] = devm_regulator_register(&i2c->dev, desc, &cfg); ++ if (IS_ERR(priv->rdev[i])) { ++ dev_err(&i2c->dev, "Failed to register regulator %s\n", ++ desc->name); ++ return PTR_ERR(priv->rdev[i]); ++ } ++ } ++ ++ if (i2c->irq) { ++ ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, ++ rt5190a_irq_handler, ++ IRQF_ONESHOT, ++ dev_name(&i2c->dev), priv); ++ if (ret) { ++ dev_err(&i2c->dev, "Failed to register interrupt\n"); ++ return ret; ++ } ++ } ++ ++ return 0; ++} ++ ++static const struct of_device_id __maybe_unused rt5190a_device_table[] = { ++ { .compatible = "richtek,rt5190a", }, ++ {} ++}; ++MODULE_DEVICE_TABLE(of, rt5190a_device_table); ++ ++static struct i2c_driver rt5190a_driver = { ++ .driver = { ++ .name = "rt5190a", ++ .of_match_table = rt5190a_device_table, ++ }, ++ .probe_new = rt5190a_probe, ++}; ++module_i2c_driver(rt5190a_driver); ++ ++MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>"); ++MODULE_DESCRIPTION("Richtek RT5190A Regulator Driver"); ++MODULE_LICENSE("GPL v2"); |