diff --git a/arch/arm/dts/s5pc1xx-goni.dts b/arch/arm/dts/s5pc1xx-goni.dts index 7bbfe591cd..e80132dd99 100644 --- a/arch/arm/dts/s5pc1xx-goni.dts +++ b/arch/arm/dts/s5pc1xx-goni.dts @@ -19,6 +19,7 @@ serial2 = "/serial@e2900800"; console = "/serial@e2900800"; pinctrl0 = &pinctrl0; + i2c3 = &i2c_pmic; }; pinctrl0: pinctrl@e0200000 { @@ -32,4 +33,168 @@ id = <2>; }; + i2c_pmic: i2c-pmic { + compatible = "i2c-gpio"; + gpios = <&gpj4 0 0>, /* sda */ + <&gpj4 3 0>; /* scl */ + i2c-gpio,delay-us = <2>; /* ~100 kHz */ + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pmic@66 { + compatible = "maxim,max8998"; + reg = <0x66 0 0>; + + voltage-regulators { + ldo2_reg: LDO2 { + regulator-compatible = "LDO2"; + regulator-name = "VALIVE_1.1V"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + }; + + ldo3_reg: LDO3 { + regulator-compatible = "LDO3"; + regulator-name = "VUSB+MIPI_1.1V"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + }; + + ldo4_reg: LDO4 { + regulator-compatible = "LDO4"; + regulator-name = "VADC_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo5_reg: LDO5 { + regulator-compatible = "LDO5"; + regulator-name = "VTF_2.8V"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + }; + + ldo6_reg: LDO6 { + regulator-compatible = "LDO6"; + regulator-name = "VCC_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo7_reg: LDO7 { + regulator-compatible = "LDO7"; + regulator-name = "VLCD_1.8V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + + ldo8_reg: LDO8 { + regulator-compatible = "LDO8"; + regulator-name = "VUSB+VDAC_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo9_reg: LDO9 { + regulator-compatible = "LDO9"; + regulator-name = "VCC+VCAM_2.8V"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + }; + + ldo10_reg: LDO10 { + regulator-compatible = "LDO10"; + regulator-name = "VPLL_1.1V"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-boot-on; + }; + + ldo11_reg: LDO11 { + regulator-compatible = "LDO11"; + regulator-name = "CAM_IO_2.8V"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + }; + + ldo12_reg: LDO12 { + regulator-compatible = "LDO12"; + regulator-name = "CAM_ISP_1.2V"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + }; + + ldo13_reg: LDO13 { + regulator-compatible = "LDO13"; + regulator-name = "CAM_A_2.8V"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + }; + + ldo14_reg: LDO14 { + regulator-compatible = "LDO14"; + regulator-name = "CAM_CIF_1.8V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + ldo15_reg: LDO15 { + regulator-compatible = "LDO15"; + regulator-name = "CAM_AF_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo16_reg: LDO16 { + regulator-compatible = "LDO16"; + regulator-name = "VMIPI_1.8V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + ldo17_reg: LDO17 { + regulator-compatible = "LDO17"; + regulator-name = "CAM_8M_1.8V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + + buck1_reg: BUCK1 { + regulator-compatible = "BUCK1"; + regulator-name = "VARM_1.2V"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + }; + + buck2_reg: BUCK2 { + regulator-compatible = "BUCK2"; + regulator-name = "VINT_1.2V"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + }; + + buck3_reg: BUCK3 { + regulator-compatible = "BUCK3"; + regulator-name = "VCC_1.8V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + + buck4_reg: BUCK4 { + regulator-compatible = "BUCK4"; + regulator-name = "CAM_CORE_1.2V"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-always-on; + }; + }; + }; + }; + }; diff --git a/configs/s5p_goni_defconfig b/configs/s5p_goni_defconfig index 4cbf022080..aa61ef4248 100644 --- a/configs/s5p_goni_defconfig +++ b/configs/s5p_goni_defconfig @@ -29,3 +29,6 @@ CONFIG_USB_GADGET_DOWNLOAD=y CONFIG_G_DNL_MANUFACTURER="Samsung" CONFIG_G_DNL_VENDOR_NUM=0x04e8 CONFIG_G_DNL_PRODUCT_NUM=0x6601 +CONFIG_DM_PMIC=y +CONFIG_DM_PMIC_MAX8998=y +CONFIG_DM_I2C_GPIO=y diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index ce204b36ca..5e244c8741 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -54,6 +54,13 @@ config DM_PMIC_MAX77686 This config enables implementation of driver-model pmic uclass features for PMIC MAX77686. The driver implements read/write operations. +config DM_PMIC_MAX8998 + bool "Enable Driver Model for PMIC MAX8998" + depends on DM_PMIC + ---help--- + This config enables implementation of driver-model pmic uclass features + for PMIC MAX8998. The driver implements read/write operations. + config PMIC_PM8916 bool "Enable Driver Model for Qualcomm PM8916 PMIC" depends on DM_PMIC diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index cd1c6945cd..b4ac7d26d0 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_DM_PMIC) += pmic-uclass.o obj-$(CONFIG_DM_PMIC_MAX77686) += max77686.o +obj-$(CONFIG_DM_PMIC_MAX8998) += max8998.o obj-$(CONFIG_DM_PMIC_PFUZE100) += pfuze100.o obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o diff --git a/drivers/power/pmic/max8998.c b/drivers/power/pmic/max8998.c new file mode 100644 index 0000000000..3baa8da032 --- /dev/null +++ b/drivers/power/pmic/max8998.c @@ -0,0 +1,61 @@ +/* + * Copyright (C) 2016 Samsung Electronics + * Jaehoon Chung + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +static int max8998_reg_count(struct udevice *dev) +{ + return PMIC_NUM_OF_REGS; +} + +static int max8998_write(struct udevice *dev, uint reg, const uint8_t *buff, + int len) +{ + int ret; + + ret = dm_i2c_write(dev, reg, buff, len); + if (ret) + error("write error to device: %p register: %#x!", dev, reg); + + return ret; +} + +static int max8998_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + int ret; + + ret = dm_i2c_read(dev, reg, buff, len); + if (ret) + error("read error from device: %p register: %#x!", dev, reg); + + return ret; +} + +static struct dm_pmic_ops max8998_ops = { + .reg_count = max8998_reg_count, + .read = max8998_read, + .write = max8998_write, +}; + +static const struct udevice_id max8998_ids[] = { + { .compatible = "maxim,max8998" }, + { } +}; + +U_BOOT_DRIVER(pmic_max8998) = { + .name = "max8998_pmic", + .id = UCLASS_PMIC, + .of_match = max8998_ids, + .ops = &max8998_ops, +};