diff options
Diffstat (limited to 'drivers/power/pmic')
| -rw-r--r-- | drivers/power/pmic/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/power/pmic/Makefile | 31 | ||||
| -rw-r--r-- | drivers/power/pmic/axp.c | 1 | ||||
| -rw-r--r-- | drivers/power/pmic/cpcap.c | 125 |
4 files changed, 152 insertions, 15 deletions
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index bbcbcee4c35..5a61cd45b8c 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -295,6 +295,16 @@ config DM_PMIC_SANDBOX Driver binding info: doc/device-tree-bindings/pmic/sandbox.txt +config DM_PMIC_CPCAP + bool "Enable Driver Model for Motorola CPCAP" + help + The CPCAP is a Motorola/ST-Ericsson creation, a multifunctional IC + whose main purpose is power control. It was used in a wide variety of + Motorola products, both Tegra and OMAP based. The most notable devices + using this PMIC are the Motorola Droid 4, Atrix 4G, and Droid X2. + Unlike most PMICs, this one is not I2C based; it uses the SPI bus. The + core driver provides both read and write access to the device registers. + config PMIC_S5M8767 bool "Enable Driver Model for the Samsung S5M8767 PMIC" ---help--- diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index bc138f563ff..2210b1a64ae 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -4,41 +4,42 @@ # Lukasz Majewski <l.majewski@samsung.com> obj-$(CONFIG_$(PHASE_)DM_PMIC) += pmic-uclass.o -obj-$(CONFIG_$(XPL_)DM_PMIC_FAN53555) += fan53555.o -obj-$(CONFIG_$(XPL_)DM_PMIC_DA9063) += da9063.o -obj-$(CONFIG_$(XPL_)DM_PMIC_MAX77663) += max77663.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_FAN53555) += fan53555.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_DA9063) += da9063.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_MAX77663) += max77663.o obj-$(CONFIG_DM_PMIC_MAX77686) += max77686.o obj-$(CONFIG_DM_PMIC_MAX8998) += max8998.o obj-$(CONFIG_DM_PMIC_MC34708) += mc34708.o -obj-$(CONFIG_$(XPL_)DM_PMIC_BD71837) += bd71837.o -obj-$(CONFIG_$(XPL_)DM_PMIC_MP5416) += mp5416.o -obj-$(CONFIG_$(XPL_)DM_PMIC_PFUZE100) += pfuze100.o -obj-$(CONFIG_$(XPL_)DM_PMIC_PCA9450) += pca9450.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_BD71837) += bd71837.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_MP5416) += mp5416.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_PFUZE100) += pfuze100.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_PCA9450) += pca9450.o obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o obj-$(CONFIG_PMIC_AB8500) += ab8500.o obj-$(CONFIG_PMIC_ACT8846) += act8846.o obj-$(CONFIG_PMIC_AS3722) += as3722.o as3722_gpio.o -obj-$(CONFIG_$(XPL_)PMIC_AXP) += axp.o +obj-$(CONFIG_$(PHASE_)PMIC_AXP) += axp.o obj-$(CONFIG_PMIC_MAX8997) += max8997.o obj-$(CONFIG_PMIC_QCOM) += pmic_qcom.o obj-$(CONFIG_$(PHASE_)PMIC_RK8XX) += rk8xx.o -obj-$(CONFIG_$(XPL_)PMIC_RN5T567) += rn5t567.o +obj-$(CONFIG_$(PHASE_)PMIC_RN5T567) += rn5t567.o obj-$(CONFIG_PMIC_TPS65090) += tps65090.o obj-$(CONFIG_PMIC_S5M8767) += s5m8767.o obj-$(CONFIG_DM_PMIC_TPS65910) += pmic_tps65910_dm.o -obj-$(CONFIG_$(XPL_)DM_PMIC_TPS80031) += tps80031.o -obj-$(CONFIG_$(XPL_)PMIC_PALMAS) += palmas.o -obj-$(CONFIG_$(XPL_)PMIC_LP873X) += lp873x.o -obj-$(CONFIG_$(XPL_)PMIC_LP87565) += lp87565.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_TPS80031) += tps80031.o +obj-$(CONFIG_$(PHASE_)PMIC_PALMAS) += palmas.o +obj-$(CONFIG_$(PHASE_)PMIC_LP873X) += lp873x.o +obj-$(CONFIG_$(PHASE_)PMIC_LP87565) += lp87565.o obj-$(CONFIG_PMIC_STPMIC1) += stpmic1.o obj-$(CONFIG_PMIC_TPS65217) += pmic_tps65217.o obj-$(CONFIG_PMIC_TPS65219) += tps65219.o obj-$(CONFIG_PMIC_TPS65941) += tps65941.o obj-$(CONFIG_PMIC_RAA215300) += raa215300.o obj-$(CONFIG_POWER_TPS65218) += pmic_tps65218.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_CPCAP) += cpcap.o -ifeq ($(CONFIG_$(XPL_)POWER_LEGACY),y) +ifeq ($(CONFIG_$(PHASE_)POWER_LEGACY),y) obj-$(CONFIG_POWER_LTC3676) += pmic_ltc3676.o obj-$(CONFIG_POWER_PCA9450) += pmic_pca9450.o obj-$(CONFIG_POWER_PFUZE100) += pmic_pfuze100.o @@ -47,5 +48,5 @@ obj-$(CONFIG_POWER_HI6553) += pmic_hi6553.o obj-$(CONFIG_POWER_MC34VR500) += pmic_mc34vr500.o endif -obj-$(CONFIG_$(XPL_)POWER_TPS62362) += pmic_tps62362.o +obj-$(CONFIG_$(PHASE_)POWER_TPS62362) += pmic_tps62362.o obj-$(CONFIG_SPL_POWER_TPS65910) += pmic_tps65910.o diff --git a/drivers/power/pmic/axp.c b/drivers/power/pmic/axp.c index 521a39dd566..c300fd2bbc2 100644 --- a/drivers/power/pmic/axp.c +++ b/drivers/power/pmic/axp.c @@ -51,6 +51,7 @@ static const struct pmic_child_info axp_pmic_child_info[] = { { "cldo", "axp_regulator" }, { "dc", "axp_regulator" }, { "dldo", "axp_regulator" }, + { "drivevbus", "axp_drivevbus" }, { "eldo", "axp_regulator" }, { "fldo", "axp_regulator" }, { "ldo", "axp_regulator" }, diff --git a/drivers/power/pmic/cpcap.c b/drivers/power/pmic/cpcap.c new file mode 100644 index 00000000000..f2076afff43 --- /dev/null +++ b/drivers/power/pmic/cpcap.c @@ -0,0 +1,125 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2025 Svyatoslav Ryhel <clamor95@gmail.com> + */ + +#include <dm.h> +#include <dm/lists.h> +#include <log.h> +#include <power/pmic.h> +#include <power/cpcap.h> +#include <spi.h> +#include <linux/delay.h> +#include <linux/err.h> + +static const struct pmic_child_info pmic_children_info[] = { + { .prefix = "sw", .driver = CPCAP_SW_DRIVER }, + { .prefix = "v", .driver = CPCAP_LDO_DRIVER }, + { }, +}; + +static int cpcap_write(struct udevice *dev, uint reg, const uint8_t *buff, int len) +{ + u8 buf[4]; + u16 data = *(u16 *)buff; + int ret; + + buf[0] = ((reg >> 8) & 0xff) | 0x80; + buf[1] = reg & 0xff; + buf[2] = data >> 8 & 0xff; + buf[3] = data & 0xff; + + ret = dm_spi_xfer(dev, 32, buf, NULL, SPI_XFER_ONCE); + + log_debug("%s: reg 0x%x, data 0x%04x, ret %d\n", __func__, reg, data, ret); + + return ret; +} + +static int cpcap_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + u8 buf[4]; + int ret; + + buf[0] = (reg >> 8) & 0xff; + buf[1] = reg & 0xff; + buf[2] = 0; + buf[3] = 0; + + ret = dm_spi_xfer(dev, 32, buf, buf, SPI_XFER_ONCE); + *buff = (buf[2] << 8) | buf[3]; + + log_debug("%s: reg 0x%x, data 0x%04x, ret %d\n", __func__, reg, *buff, ret); + return ret; +} + +static int cpcap_bind(struct udevice *dev) +{ + ofnode regulators_node; + int children; + + /* Regulator device node of PMIC */ + regulators_node = dev_read_subnode(dev, "regulator"); + if (!ofnode_valid(regulators_node)) { + log_err("%s regulator subnode not found!\n", dev->name); + return -ENXIO; + } + + /* Actual regulators container */ + regulators_node = ofnode_find_subnode(regulators_node, "regulators"); + if (!ofnode_valid(regulators_node)) { + log_err("%s regulators subnode not found!\n", dev->name); + return -ENXIO; + } + + debug("%s: '%s' - found regulators subnode\n", __func__, dev->name); + + children = pmic_bind_children(dev, regulators_node, pmic_children_info); + if (!children) + log_err("%s - no child found\n", dev->name); + + return dm_scan_fdt_dev(dev); +} + +static int cpcap_probe(struct udevice *dev) +{ + struct spi_slave *slave = dev_get_parent_priv(dev); + int ret; + + ret = spi_claim_bus(slave); + if (ret) { + log_err("SPI bus allocation failed (%d)\n", ret); + return ret; + } + + u16 id = pmic_reg_read(dev, CPCAP_REG_VERSC1); + + u16 ven = (id >> 6) & 0x7; + u16 rev = ((id >> 3) & 0x7) | ((id << 3) & 0x38); + + log_debug("%s: vendor %s rev: %i.%i (%x)\n", __func__, + ven == CPCAP_VENDOR_ST ? "ST" : "TI", + CPCAP_REVISION_MAJOR(rev), CPCAP_REVISION_MINOR(rev), + rev); + return 0; +} + +static struct dm_pmic_ops cpcap_ops = { + .read = cpcap_read, + .write = cpcap_write, +}; + +static const struct udevice_id cpcap_ids[] = { + { .compatible = "motorola,cpcap" }, + { .compatible = "st,6556002" }, + { } +}; + +U_BOOT_DRIVER(pmic_cpcap) = { + .name = "cpcap_pmic", + .id = UCLASS_PMIC, + .of_match = cpcap_ids, + .bind = cpcap_bind, + .probe = cpcap_probe, + .ops = &cpcap_ops, +}; |