2 * Qualcomm pm8916 pmic driver
4 * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
6 * SPDX-License-Identifier: GPL-2.0+
11 #include <power/pmic.h>
12 #include <spmi/spmi.h>
14 DECLARE_GLOBAL_DATA_PTR;
17 #define PID_MASK (0xFF << PID_SHIFT)
21 uint32_t usid; /* Slave ID on SPMI bus */
24 static int pm8916_reg_count(struct udevice *dev)
29 static int pm8916_write(struct udevice *dev, uint reg, const uint8_t *buff,
32 struct pm8916_priv *priv = dev_get_priv(dev);
37 return spmi_reg_write(dev->parent, priv->usid,
38 (reg & PID_MASK) >> PID_SHIFT, reg & REG_MASK,
42 static int pm8916_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
44 struct pm8916_priv *priv = dev_get_priv(dev);
50 val = spmi_reg_read(dev->parent, priv->usid,
51 (reg & PID_MASK) >> PID_SHIFT, reg & REG_MASK);
59 static struct dm_pmic_ops pm8916_ops = {
60 .reg_count = pm8916_reg_count,
62 .write = pm8916_write,
65 static const struct udevice_id pm8916_ids[] = {
66 { .compatible = "qcom,spmi-pmic" },
70 static int pm8916_probe(struct udevice *dev)
72 struct pm8916_priv *priv = dev_get_priv(dev);
74 priv->usid = dev_get_addr(dev);
76 if (priv->usid == FDT_ADDR_T_NONE)
83 static int pm8916_bind(struct udevice *dev)
85 return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false);
88 U_BOOT_DRIVER(pmic_pm8916) = {
89 .name = "pmic_pm8916",
91 .of_match = pm8916_ids,
93 .probe = pm8916_probe,
95 .priv_auto_alloc_size = sizeof(struct pm8916_priv),