u-boot/drivers/power/pmic/palmas.c
Masahiro Yamada 9b643e312d treewide: replace with error() with pr_err()
U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04 11:59:44 -04:00

102 lines
2.2 KiB
C

/*
* (C) Copyright 2016 Texas Instruments Incorporated, <www.ti.com>
* Keerthy <j-keerthy@ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <fdtdec.h>
#include <errno.h>
#include <dm.h>
#include <i2c.h>
#include <power/pmic.h>
#include <power/regulator.h>
#include <power/palmas.h>
#include <dm/device.h>
DECLARE_GLOBAL_DATA_PTR;
static const struct pmic_child_info pmic_children_info[] = {
{ .prefix = "ldo", .driver = PALMAS_LDO_DRIVER },
{ .prefix = "smps", .driver = PALMAS_SMPS_DRIVER },
{ },
};
static int palmas_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!", dev, reg);
return -EIO;
}
return 0;
}
static int palmas_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
{
if (dm_i2c_read(dev, reg, buff, len)) {
pr_err("read error from device: %p register: %#x!", dev, reg);
return -EIO;
}
return 0;
}
static int palmas_bind(struct udevice *dev)
{
ofnode pmic_node = ofnode_null(), regulators_node;
ofnode subnode;
int children;
dev_for_each_subnode(subnode, dev) {
const char *name;
char *temp;
name = ofnode_get_name(subnode);
temp = strstr(name, "pmic");
if (temp) {
pmic_node = subnode;
break;
}
}
if (!ofnode_valid(pmic_node)) {
debug("%s: %s pmic subnode not found!", __func__, dev->name);
return -ENXIO;
}
regulators_node = ofnode_find_subnode(pmic_node, "regulators");
if (!ofnode_valid(regulators_node)) {
debug("%s: %s reg subnode not found!", __func__, dev->name);
return -ENXIO;
}
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 palmas_ops = {
.read = palmas_read,
.write = palmas_write,
};
static const struct udevice_id palmas_ids[] = {
{ .compatible = "ti,tps659038", .data = TPS659038 },
{ .compatible = "ti,tps65917" , .data = TPS65917 },
{ }
};
U_BOOT_DRIVER(pmic_palmas) = {
.name = "palmas_pmic",
.id = UCLASS_PMIC,
.of_match = palmas_ids,
.bind = palmas_bind,
.ops = &palmas_ops,
};