u-boot/drivers/power/pmic/axp.c
Samuel Holland 526c4f2e43 power: pmic: Add a driver for X-Powers AXP PMICs
These PMICs provide some combination of battery charger, fuel gauge,
GPIOs, regulators, and VBUS routing. These functions are represented
as child nodes in the device tree. Add the minimal driver needed to
probe these child devices and provide the DM_PMIC ops.

Enable the driver by default for SoCs that normally pair with a PMIC.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-12 09:41:57 +01:00

38 lines
903 B
C

// SPDX-License-Identifier: GPL-2.0+
#include <dm.h>
#include <i2c.h>
#include <power/pmic.h>
static int axp_pmic_reg_count(struct udevice *dev)
{
/* TODO: Get the specific value from driver data. */
return 0x100;
}
static struct dm_pmic_ops axp_pmic_ops = {
.reg_count = axp_pmic_reg_count,
.read = dm_i2c_read,
.write = dm_i2c_write,
};
static const struct udevice_id axp_pmic_ids[] = {
{ .compatible = "x-powers,axp152" },
{ .compatible = "x-powers,axp202" },
{ .compatible = "x-powers,axp209" },
{ .compatible = "x-powers,axp221" },
{ .compatible = "x-powers,axp223" },
{ .compatible = "x-powers,axp803" },
{ .compatible = "x-powers,axp806" },
{ .compatible = "x-powers,axp809" },
{ .compatible = "x-powers,axp813" },
{ }
};
U_BOOT_DRIVER(axp_pmic) = {
.name = "axp_pmic",
.id = UCLASS_PMIC,
.of_match = axp_pmic_ids,
.bind = dm_scan_fdt_dev,
.ops = &axp_pmic_ops,
};