mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 17:58:23 +00:00
911954859d
Quite a few places have a bind() method which just calls dm_scan_fdt_dev(). We may as well call dm_scan_fdt_dev() directly. Update the code to do this. Signed-off-by: Simon Glass <sjg@chromium.org>
89 lines
1.7 KiB
C
89 lines
1.7 KiB
C
/*
|
|
* Qualcomm pm8916 pmic driver
|
|
*
|
|
* (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <power/pmic.h>
|
|
#include <spmi/spmi.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define PID_SHIFT 8
|
|
#define PID_MASK (0xFF << PID_SHIFT)
|
|
#define REG_MASK 0xFF
|
|
|
|
struct pm8916_priv {
|
|
uint32_t usid; /* Slave ID on SPMI bus */
|
|
};
|
|
|
|
static int pm8916_reg_count(struct udevice *dev)
|
|
{
|
|
return 0xFFFF;
|
|
}
|
|
|
|
static int pm8916_write(struct udevice *dev, uint reg, const uint8_t *buff,
|
|
int len)
|
|
{
|
|
struct pm8916_priv *priv = dev_get_priv(dev);
|
|
|
|
if (len != 1)
|
|
return -EINVAL;
|
|
|
|
return spmi_reg_write(dev->parent, priv->usid,
|
|
(reg & PID_MASK) >> PID_SHIFT, reg & REG_MASK,
|
|
*buff);
|
|
}
|
|
|
|
static int pm8916_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
|
|
{
|
|
struct pm8916_priv *priv = dev_get_priv(dev);
|
|
int val;
|
|
|
|
if (len != 1)
|
|
return -EINVAL;
|
|
|
|
val = spmi_reg_read(dev->parent, priv->usid,
|
|
(reg & PID_MASK) >> PID_SHIFT, reg & REG_MASK);
|
|
|
|
if (val < 0)
|
|
return val;
|
|
*buff = val;
|
|
return 0;
|
|
}
|
|
|
|
static struct dm_pmic_ops pm8916_ops = {
|
|
.reg_count = pm8916_reg_count,
|
|
.read = pm8916_read,
|
|
.write = pm8916_write,
|
|
};
|
|
|
|
static const struct udevice_id pm8916_ids[] = {
|
|
{ .compatible = "qcom,spmi-pmic" },
|
|
{ }
|
|
};
|
|
|
|
static int pm8916_probe(struct udevice *dev)
|
|
{
|
|
struct pm8916_priv *priv = dev_get_priv(dev);
|
|
|
|
priv->usid = dev_get_addr(dev);
|
|
|
|
if (priv->usid == FDT_ADDR_T_NONE)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_DRIVER(pmic_pm8916) = {
|
|
.name = "pmic_pm8916",
|
|
.id = UCLASS_PMIC,
|
|
.of_match = pm8916_ids,
|
|
.bind = dm_scan_fdt_dev,
|
|
.probe = pm8916_probe,
|
|
.ops = &pm8916_ops,
|
|
.priv_auto_alloc_size = sizeof(struct pm8916_priv),
|
|
};
|