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-rw-r--r--drivers/w1/slaves/Kconfig12
-rw-r--r--drivers/w1/slaves/Makefile1
-rw-r--r--drivers/w1/slaves/w1_ds2760.c175
-rw-r--r--drivers/w1/slaves/w1_ds2760.h59
-rw-r--r--drivers/w1/w1.c3
5 files changed, 3 insertions, 247 deletions
diff --git a/drivers/w1/slaves/Kconfig b/drivers/w1/slaves/Kconfig
index 7931231d8e80..e22fdeddada1 100644
--- a/drivers/w1/slaves/Kconfig
+++ b/drivers/w1/slaves/Kconfig
@@ -100,18 +100,6 @@ config W1_SLAVE_DS2438
Say Y here if you want to use a 1-wire
DS2438 Smart Battery Monitor device support
-config W1_SLAVE_DS2760
- tristate "Dallas 2760 battery monitor chip (HP iPAQ & others)"
- help
- If you enable this you will have the DS2760 battery monitor
- chip support.
-
- The battery monitor chip is used in many batteries/devices
- as the one who is responsible for charging/discharging/monitoring
- Li+ batteries.
-
- If you are unsure, say N.
-
config W1_SLAVE_DS2780
tristate "Dallas 2780 battery monitor chip"
help
diff --git a/drivers/w1/slaves/Makefile b/drivers/w1/slaves/Makefile
index d5f4f4d5b9e5..eab29f151413 100644
--- a/drivers/w1/slaves/Makefile
+++ b/drivers/w1/slaves/Makefile
@@ -14,7 +14,6 @@ obj-$(CONFIG_W1_SLAVE_DS2431) += w1_ds2431.o
obj-$(CONFIG_W1_SLAVE_DS2805) += w1_ds2805.o
obj-$(CONFIG_W1_SLAVE_DS2433) += w1_ds2433.o
obj-$(CONFIG_W1_SLAVE_DS2438) += w1_ds2438.o
-obj-$(CONFIG_W1_SLAVE_DS2760) += w1_ds2760.o
obj-$(CONFIG_W1_SLAVE_DS2780) += w1_ds2780.o
obj-$(CONFIG_W1_SLAVE_DS2781) += w1_ds2781.o
obj-$(CONFIG_W1_SLAVE_DS28E04) += w1_ds28e04.o
diff --git a/drivers/w1/slaves/w1_ds2760.c b/drivers/w1/slaves/w1_ds2760.c
deleted file mode 100644
index 26168abfb8b8..000000000000
--- a/drivers/w1/slaves/w1_ds2760.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- * 1-Wire implementation for the ds2760 chip
- *
- * Copyright © 2004-2005, Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>
- *
- * Use consistent with the GNU GPL is permitted,
- * provided that this copyright notice is
- * preserved in its entirety in all copies and derived works.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <linux/idr.h>
-#include <linux/gfp.h>
-
-#include <linux/w1.h>
-
-#include "w1_ds2760.h"
-
-#define W1_FAMILY_DS2760 0x30
-
-static int w1_ds2760_io(struct device *dev, char *buf, int addr, size_t count,
- int io)
-{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
- if (!dev)
- return 0;
-
- mutex_lock(&sl->master->bus_mutex);
-
- if (addr > DS2760_DATA_SIZE || addr < 0) {
- count = 0;
- goto out;
- }
- if (addr + count > DS2760_DATA_SIZE)
- count = DS2760_DATA_SIZE - addr;
-
- if (!w1_reset_select_slave(sl)) {
- if (!io) {
- w1_write_8(sl->master, W1_DS2760_READ_DATA);
- w1_write_8(sl->master, addr);
- count = w1_read_block(sl->master, buf, count);
- } else {
- w1_write_8(sl->master, W1_DS2760_WRITE_DATA);
- w1_write_8(sl->master, addr);
- w1_write_block(sl->master, buf, count);
- /* XXX w1_write_block returns void, not n_written */
- }
- }
-
-out:
- mutex_unlock(&sl->master->bus_mutex);
-
- return count;
-}
-
-int w1_ds2760_read(struct device *dev, char *buf, int addr, size_t count)
-{
- return w1_ds2760_io(dev, buf, addr, count, 0);
-}
-EXPORT_SYMBOL(w1_ds2760_read);
-
-int w1_ds2760_write(struct device *dev, char *buf, int addr, size_t count)
-{
- return w1_ds2760_io(dev, buf, addr, count, 1);
-}
-EXPORT_SYMBOL(w1_ds2760_write);
-
-static int w1_ds2760_eeprom_cmd(struct device *dev, int addr, int cmd)
-{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
- if (!dev)
- return -EINVAL;
-
- mutex_lock(&sl->master->bus_mutex);
-
- if (w1_reset_select_slave(sl) == 0) {
- w1_write_8(sl->master, cmd);
- w1_write_8(sl->master, addr);
- }
-
- mutex_unlock(&sl->master->bus_mutex);
- return 0;
-}
-
-int w1_ds2760_store_eeprom(struct device *dev, int addr)
-{
- return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_COPY_DATA);
-}
-EXPORT_SYMBOL(w1_ds2760_store_eeprom);
-
-int w1_ds2760_recall_eeprom(struct device *dev, int addr)
-{
- return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_RECALL_DATA);
-}
-EXPORT_SYMBOL(w1_ds2760_recall_eeprom);
-
-static ssize_t w1_slave_read(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr, char *buf,
- loff_t off, size_t count)
-{
- struct device *dev = container_of(kobj, struct device, kobj);
- return w1_ds2760_read(dev, buf, off, count);
-}
-
-static BIN_ATTR_RO(w1_slave, DS2760_DATA_SIZE);
-
-static struct bin_attribute *w1_ds2760_bin_attrs[] = {
- &bin_attr_w1_slave,
- NULL,
-};
-
-static const struct attribute_group w1_ds2760_group = {
- .bin_attrs = w1_ds2760_bin_attrs,
-};
-
-static const struct attribute_group *w1_ds2760_groups[] = {
- &w1_ds2760_group,
- NULL,
-};
-
-static int w1_ds2760_add_slave(struct w1_slave *sl)
-{
- int ret;
- struct platform_device *pdev;
-
- pdev = platform_device_alloc("ds2760-battery", PLATFORM_DEVID_AUTO);
- if (!pdev)
- return -ENOMEM;
- pdev->dev.parent = &sl->dev;
-
- ret = platform_device_add(pdev);
- if (ret)
- goto pdev_add_failed;
-
- dev_set_drvdata(&sl->dev, pdev);
-
- return 0;
-
-pdev_add_failed:
- platform_device_put(pdev);
-
- return ret;
-}
-
-static void w1_ds2760_remove_slave(struct w1_slave *sl)
-{
- struct platform_device *pdev = dev_get_drvdata(&sl->dev);
-
- platform_device_unregister(pdev);
-}
-
-static struct w1_family_ops w1_ds2760_fops = {
- .add_slave = w1_ds2760_add_slave,
- .remove_slave = w1_ds2760_remove_slave,
- .groups = w1_ds2760_groups,
-};
-
-static struct w1_family w1_ds2760_family = {
- .fid = W1_FAMILY_DS2760,
- .fops = &w1_ds2760_fops,
-};
-module_w1_family(w1_ds2760_family);
-
-MODULE_AUTHOR("Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>");
-MODULE_DESCRIPTION("1-wire Driver Dallas 2760 battery monitor chip");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2760));
diff --git a/drivers/w1/slaves/w1_ds2760.h b/drivers/w1/slaves/w1_ds2760.h
deleted file mode 100644
index 24168c94eeae..000000000000
--- a/drivers/w1/slaves/w1_ds2760.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * 1-Wire implementation for the ds2760 chip
- *
- * Copyright © 2004-2005, Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>
- *
- * Use consistent with the GNU GPL is permitted,
- * provided that this copyright notice is
- * preserved in its entirety in all copies and derived works.
- *
- */
-
-#ifndef __w1_ds2760_h__
-#define __w1_ds2760_h__
-
-/* Known commands to the DS2760 chip */
-#define W1_DS2760_SWAP 0xAA
-#define W1_DS2760_READ_DATA 0x69
-#define W1_DS2760_WRITE_DATA 0x6C
-#define W1_DS2760_COPY_DATA 0x48
-#define W1_DS2760_RECALL_DATA 0xB8
-#define W1_DS2760_LOCK 0x6A
-
-/* Number of valid register addresses */
-#define DS2760_DATA_SIZE 0x40
-
-#define DS2760_PROTECTION_REG 0x00
-
-#define DS2760_STATUS_REG 0x01
-#define DS2760_STATUS_IE (1 << 2)
-#define DS2760_STATUS_SWEN (1 << 3)
-#define DS2760_STATUS_RNAOP (1 << 4)
-#define DS2760_STATUS_PMOD (1 << 5)
-
-#define DS2760_EEPROM_REG 0x07
-#define DS2760_SPECIAL_FEATURE_REG 0x08
-#define DS2760_VOLTAGE_MSB 0x0c
-#define DS2760_VOLTAGE_LSB 0x0d
-#define DS2760_CURRENT_MSB 0x0e
-#define DS2760_CURRENT_LSB 0x0f
-#define DS2760_CURRENT_ACCUM_MSB 0x10
-#define DS2760_CURRENT_ACCUM_LSB 0x11
-#define DS2760_TEMP_MSB 0x18
-#define DS2760_TEMP_LSB 0x19
-#define DS2760_EEPROM_BLOCK0 0x20
-#define DS2760_ACTIVE_FULL 0x20
-#define DS2760_EEPROM_BLOCK1 0x30
-#define DS2760_STATUS_WRITE_REG 0x31
-#define DS2760_RATED_CAPACITY 0x32
-#define DS2760_CURRENT_OFFSET_BIAS 0x33
-#define DS2760_ACTIVE_EMPTY 0x3b
-
-extern int w1_ds2760_read(struct device *dev, char *buf, int addr,
- size_t count);
-extern int w1_ds2760_write(struct device *dev, char *buf, int addr,
- size_t count);
-extern int w1_ds2760_store_eeprom(struct device *dev, int addr);
-extern int w1_ds2760_recall_eeprom(struct device *dev, int addr);
-
-#endif /* !__w1_ds2760_h__ */
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index caef0e0fd817..890c038c25f8 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -26,6 +26,7 @@
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/hwmon.h>
+#include <linux/of.h>
#include <linux/atomic.h>
@@ -686,6 +687,8 @@ static int __w1_attach_slave_device(struct w1_slave *sl)
sl->dev.bus = &w1_bus_type;
sl->dev.release = &w1_slave_release;
sl->dev.groups = w1_slave_groups;
+ sl->dev.of_node = of_find_matching_node(sl->master->dev.of_node,
+ sl->family->of_match_table);
dev_set_name(&sl->dev, "%02x-%012llx",
(unsigned int) sl->reg_num.family,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 02:10:35 +0100