mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-22 11:13:07 +00:00
401d1c4f5d
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
106 lines
2.2 KiB
C
106 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2018
|
|
* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <fsl_pmic.h>
|
|
#include <i2c.h>
|
|
#include <asm/global_data.h>
|
|
#include <power/pmic.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static int mc34708_reg_count(struct udevice *dev)
|
|
{
|
|
return PMIC_NUM_OF_REGS;
|
|
}
|
|
|
|
static int mc34708_write(struct udevice *dev, uint reg, const u8 *buff,
|
|
int len)
|
|
{
|
|
u8 buf[3] = { 0 };
|
|
int ret;
|
|
|
|
if (len != MC34708_TRANSFER_SIZE)
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* The MC34708 sends data with big endian format, hence we need to
|
|
* perform manual byte swap.
|
|
*/
|
|
buf[0] = buff[2];
|
|
buf[1] = buff[1];
|
|
buf[2] = buff[0];
|
|
|
|
ret = dm_i2c_write(dev, reg, buf, len);
|
|
if (ret)
|
|
printf("write error to device: %p register: %#x!\n", dev, reg);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mc34708_read(struct udevice *dev, uint reg, u8 *buff, int len)
|
|
{
|
|
u8 buf[3] = { 0 };
|
|
int ret;
|
|
|
|
if (len != MC34708_TRANSFER_SIZE)
|
|
return -EINVAL;
|
|
|
|
ret = dm_i2c_read(dev, reg, buf, len);
|
|
if (ret)
|
|
printf("read error from device: %p register: %#x!\n", dev, reg);
|
|
|
|
buff[0] = buf[2];
|
|
buff[1] = buf[1];
|
|
buff[2] = buf[0];
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mc34708_probe(struct udevice *dev)
|
|
{
|
|
struct uc_pmic_priv *priv = dev_get_uclass_priv(dev);
|
|
|
|
priv->trans_len = MC34708_TRANSFER_SIZE;
|
|
|
|
/*
|
|
* Handle PMIC Errata 37: APS mode not fully functional,
|
|
* use explicit PWM or PFM instead
|
|
*/
|
|
pmic_clrsetbits(dev, MC34708_REG_SW12_OPMODE,
|
|
MC34708_SW1AMODE_MASK | MC34708_SW2MODE_MASK,
|
|
SW_MODE_PWMPWM | (SW_MODE_PWMPWM << 14u));
|
|
|
|
pmic_clrsetbits(dev, MC34708_REG_SW345_OPMODE,
|
|
MC34708_SW3MODE_MASK | MC34708_SW4AMODE_MASK |
|
|
MC34708_SW4BMODE_MASK | MC34708_SW5MODE_MASK,
|
|
SW_MODE_PWMPWM | (SW_MODE_PWMPWM << 6u) |
|
|
(SW_MODE_PWMPWM << 12u) | (SW_MODE_PWMPWM << 18u));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct dm_pmic_ops mc34708_ops = {
|
|
.reg_count = mc34708_reg_count,
|
|
.read = mc34708_read,
|
|
.write = mc34708_write,
|
|
};
|
|
|
|
static const struct udevice_id mc34708_ids[] = {
|
|
{ .compatible = "fsl,mc34708" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(pmic_mc34708) = {
|
|
.name = "mc34708_pmic",
|
|
.id = UCLASS_PMIC,
|
|
.of_match = mc34708_ids,
|
|
.probe = mc34708_probe,
|
|
.ops = &mc34708_ops,
|
|
};
|