mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-15 07:43:07 +00:00
b953ec2bca
Define LOG_CATEGORY for all uclass to allow filtering with log command. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
88 lines
1.6 KiB
C
88 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
*
|
|
* Copyright (c) 2015 Free Electrons
|
|
* Copyright (c) 2015 NextThing Co.
|
|
* Copyright (c) 2018 Microchip Technology, Inc.
|
|
*
|
|
* Maxime Ripard <maxime.ripard@free-electrons.com>
|
|
* Eugen Hristev <eugen.hristev@microchip.com>
|
|
*
|
|
*/
|
|
|
|
#define LOG_CATEGORY UCLASS_W1_EEPROM
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <log.h>
|
|
#include <w1.h>
|
|
#include <w1-eeprom.h>
|
|
|
|
#include <dm/device-internal.h>
|
|
|
|
int w1_eeprom_read_buf(struct udevice *dev, unsigned int offset,
|
|
u8 *buf, unsigned int count)
|
|
{
|
|
const struct w1_eeprom_ops *ops = device_get_ops(dev);
|
|
u64 id = 0;
|
|
int ret;
|
|
|
|
if (!ops->read_buf)
|
|
return -ENOSYS;
|
|
|
|
ret = w1_eeprom_get_id(dev, &id);
|
|
if (ret)
|
|
return ret;
|
|
if (!id)
|
|
return -ENODEV;
|
|
|
|
return ops->read_buf(dev, offset, buf, count);
|
|
}
|
|
|
|
int w1_eeprom_get_id(struct udevice *dev, u64 *id)
|
|
{
|
|
struct w1_device *w1 = dev_get_parent_plat(dev);
|
|
|
|
if (!w1)
|
|
return -ENODEV;
|
|
*id = w1->id;
|
|
|
|
return 0;
|
|
}
|
|
|
|
UCLASS_DRIVER(w1_eeprom) = {
|
|
.name = "w1_eeprom",
|
|
.id = UCLASS_W1_EEPROM,
|
|
.flags = DM_UC_FLAG_SEQ_ALIAS,
|
|
#if CONFIG_IS_ENABLED(OF_CONTROL)
|
|
.post_bind = dm_scan_fdt_dev,
|
|
#endif
|
|
};
|
|
|
|
int w1_eeprom_dm_init(void)
|
|
{
|
|
struct udevice *dev;
|
|
struct uclass *uc;
|
|
int ret;
|
|
|
|
ret = uclass_get(UCLASS_W1_EEPROM, &uc);
|
|
if (ret) {
|
|
debug("W1_EEPROM uclass not available\n");
|
|
return ret;
|
|
}
|
|
|
|
uclass_foreach_dev(dev, uc) {
|
|
ret = device_probe(dev);
|
|
if (ret == -ENODEV) { /* No such device. */
|
|
debug("W1_EEPROM not available.\n");
|
|
continue;
|
|
}
|
|
|
|
if (ret) { /* Other error. */
|
|
printf("W1_EEPROM probe failed, error %d\n", ret);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|