The tps65217 PMIC driver is used with am335x SoC based designs.
It is used in the SPL (MLO) as well, so the DM conversion only is for u-boot proper.
This driver only allows simple reading/writing/dumping of the content of its registers and requires the DM_I2C for proper operation.
Moreover, new CONFIG_PMIC_TPS65217 has been introduced in Kconfig to be used with boards, which both support DM_PMIC and DM_I2C.
Signed-off-by: Lukasz Majewski lukma@denx.de ---
drivers/power/pmic/Kconfig | 8 +++ drivers/power/pmic/pmic_tps65217.c | 82 ++++++++++++++++++++++++++++++ 2 files changed, 90 insertions(+)
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index ce0adb18a4..c7739228da 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -306,6 +306,14 @@ config PMIC_TPS65090 only, and you can enable the regulator/charger drivers separately if required.
+config PMIC_TPS65217 + bool "Enable driver for Texas Instruments TPS65217 PMIC" + ---help--- + The TPS65217 is a PMIC containing several LDOs, DC to DC convertors, + FETs and a battery charger. This driver provides register access + only, and you can enable the regulator/charger drivers separately if + required. + config PMIC_PALMAS bool "Enable driver for Texas Instruments PALMAS PMIC" ---help--- diff --git a/drivers/power/pmic/pmic_tps65217.c b/drivers/power/pmic/pmic_tps65217.c index c7f532df4d..ccbf223593 100644 --- a/drivers/power/pmic/pmic_tps65217.c +++ b/drivers/power/pmic/pmic_tps65217.c @@ -6,8 +6,13 @@
#include <common.h> #include <i2c.h> +#include <dm.h> +#include <errno.h> +#include <fdtdec.h> +#include <power/pmic.h> #include <power/tps65217.h>
+#if !CONFIG_IS_ENABLED(DM_PMIC) struct udevice *tps65217_dev __section(".data") = NULL;
/** @@ -148,3 +153,80 @@ int power_tps65217_init(unsigned char bus) #endif return 0; } +#else /* CONFIG_IS_ENABLED(DM_PMIC) */ +static const struct pmic_child_info pmic_children_info[] = { + { .prefix = "ldo", .driver = "tps65217_ldo" }, + { }, +}; + +static int tps65217_reg_count(struct udevice *dev) +{ + return TPS65217_PMIC_NUM_OF_REGS; +} + +static int tps65217_write(struct udevice *dev, uint reg, const uint8_t *buff, + int len) +{ + if (dm_i2c_write(dev, reg, buff, len)) { + pr_err("write error to device: %p register: %#x!\n", dev, reg); + return -EIO; + } + + return 0; +} + +static int tps65217_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + int ret; + + ret = dm_i2c_read(dev, reg, buff, len); + if (ret) { + pr_err("read error %d from device: %p register: %#x!\n", ret, + dev, reg); + return -EIO; + } + + return 0; +} + +static int tps65217_bind(struct udevice *dev) +{ + ofnode regulators_node; + int children; + + regulators_node = dev_read_subnode(dev, "regulators"); + if (!ofnode_valid(regulators_node)) { + debug("%s: %s regulators subnode not found!\n", __func__, + 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) + debug("%s: %s - no child found\n", __func__, dev->name); + + /* Always return success for this device */ + return 0; +} + +static struct dm_pmic_ops tps65217_ops = { + .reg_count = tps65217_reg_count, + .read = tps65217_read, + .write = tps65217_write, +}; + +static const struct udevice_id tps65217_ids[] = { + { .compatible = "ti,tps65217" }, + { } +}; + +U_BOOT_DRIVER(pmic_tps65217) = { + .name = "tps65217 pmic", + .id = UCLASS_PMIC, + .of_match = tps65217_ids, + .bind = tps65217_bind, + .ops = &tps65217_ops, +}; +#endif