This patch contains the scheduled removal of legacy I2C RTC drivers with
replacement drivers.
Signed-off-by: Adrian Bunk <[email protected]>
---
Documentation/feature-removal-schedule.txt | 7
arch/powerpc/platforms/83xx/mpc832x_mds.c | 24 -
arch/powerpc/platforms/83xx/mpc834x_mds.c | 24 -
arch/powerpc/platforms/83xx/mpc836x_mds.c | 24 -
arch/ppc/platforms/83xx/mpc834x_sys.c | 20 -
arch/ppc/platforms/85xx/tqm85xx.c | 21 -
arch/ppc/platforms/katana.c | 21 -
drivers/i2c/chips/Kconfig | 38 -
drivers/i2c/chips/Makefile | 3
drivers/i2c/chips/ds1337.c | 410 --------------------
drivers/i2c/chips/ds1374.c | 267 -------------
drivers/i2c/chips/m41t00.c | 413 ---------------------
include/linux/m41t00.h | 50 --
13 files changed, 1322 deletions(-)
bf858b44b3071082be3aaf71e2d46ddb26415247
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 6bb9be5..391f2d1 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -275,13 +275,6 @@ Who: Tejun Heo <[email protected]>
---------------------------
-What: Legacy RTC drivers (under drivers/i2c/chips)
-When: November 2007
-Why: Obsolete. We have a RTC subsystem with better drivers.
-Who: Jean Delvare <[email protected]>
-
----------------------------
-
What: iptables SAME target
When: 1.1. 2008
Files: net/ipv4/netfilter/ipt_SAME.c, include/linux/netfilter_ipv4/ipt_SAME.h
diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c
index 972fa85..66382df 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c
@@ -145,30 +145,6 @@ static void __init mpc832x_sys_init_IRQ(void)
#endif /* CONFIG_QUICC_ENGINE */
}
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong ds1374_get_rtc_time(void);
-extern int ds1374_set_rtc_time(ulong);
-
-static int __init mpc832x_rtc_hookup(void)
-{
- struct timespec tv;
-
- if (!machine_is(mpc832x_mds))
- return 0;
-
- ppc_md.get_rtc_time = ds1374_get_rtc_time;
- ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
- tv.tv_nsec = 0;
- tv.tv_sec = (ppc_md.get_rtc_time) ();
- do_settimeofday(&tv);
-
- return 0;
-}
-
-late_initcall(mpc832x_rtc_hookup);
-#endif
-
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
diff --git a/arch/powerpc/platforms/83xx/mpc834x_mds.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c
index 00aed7c..a81bb3c 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_mds.c
@@ -106,30 +106,6 @@ static void __init mpc834x_mds_init_IRQ(void)
ipic_set_default_priority();
}
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong ds1374_get_rtc_time(void);
-extern int ds1374_set_rtc_time(ulong);
-
-static int __init mpc834x_rtc_hookup(void)
-{
- struct timespec tv;
-
- if (!machine_is(mpc834x_mds))
- return 0;
-
- ppc_md.get_rtc_time = ds1374_get_rtc_time;
- ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
- tv.tv_nsec = 0;
- tv.tv_sec = (ppc_md.get_rtc_time) ();
- do_settimeofday(&tv);
-
- return 0;
-}
-
-late_initcall(mpc834x_rtc_hookup);
-#endif
-
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
diff --git a/arch/powerpc/platforms/83xx/mpc836x_mds.c b/arch/powerpc/platforms/83xx/mpc836x_mds.c
index 0f3855c..8d87b9c 100644
--- a/arch/powerpc/platforms/83xx/mpc836x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc836x_mds.c
@@ -152,30 +152,6 @@ static void __init mpc836x_mds_init_IRQ(void)
#endif /* CONFIG_QUICC_ENGINE */
}
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong ds1374_get_rtc_time(void);
-extern int ds1374_set_rtc_time(ulong);
-
-static int __init mpc8360_rtc_hookup(void)
-{
- struct timespec tv;
-
- if (!machine_is(mpc836x_mds))
- return 0;
-
- ppc_md.get_rtc_time = ds1374_get_rtc_time;
- ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
- tv.tv_nsec = 0;
- tv.tv_sec = (ppc_md.get_rtc_time) ();
- do_settimeofday(&tv);
-
- return 0;
-}
-
-late_initcall(mpc8360_rtc_hookup);
-#endif
-
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c
index b84f8df..cb0a749 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.c
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
@@ -224,26 +224,6 @@ mpc834x_sys_init_IRQ(void)
ipic_set_default_priority();
}
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong ds1374_get_rtc_time(void);
-extern int ds1374_set_rtc_time(ulong);
-
-static int __init
-mpc834x_rtc_hookup(void)
-{
- struct timespec tv;
-
- ppc_md.get_rtc_time = ds1374_get_rtc_time;
- ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
- tv.tv_nsec = 0;
- tv.tv_sec = (ppc_md.get_rtc_time)();
- do_settimeofday(&tv);
-
- return 0;
-}
-late_initcall(mpc834x_rtc_hookup);
-#endif
static __inline__ void
mpc834x_sys_set_bat(void)
{
diff --git a/arch/ppc/platforms/85xx/tqm85xx.c b/arch/ppc/platforms/85xx/tqm85xx.c
index 4ee2bd1..27ce389 100644
--- a/arch/ppc/platforms/85xx/tqm85xx.c
+++ b/arch/ppc/platforms/85xx/tqm85xx.c
@@ -258,27 +258,6 @@ int tqm85xx_show_cpuinfo(struct seq_file *m)
return 0;
}
-#if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_DS1337)
-extern ulong ds1337_get_rtc_time(void);
-extern int ds1337_set_rtc_time(unsigned long nowtime);
-
-static int __init
-tqm85xx_rtc_hookup(void)
-{
- struct timespec tv;
-
- ppc_md.set_rtc_time = ds1337_set_rtc_time;
- ppc_md.get_rtc_time = ds1337_get_rtc_time;
-
- tv.tv_nsec = 0;
- tv.tv_sec = (ppc_md.get_rtc_time)();
- do_settimeofday(&tv);
-
- return 0;
-}
-late_initcall(tqm85xx_rtc_hookup);
-#endif
-
#ifdef CONFIG_PCI
/*
* interrupt routing
diff --git a/arch/ppc/platforms/katana.c b/arch/ppc/platforms/katana.c
index 52f63e6..fe6e88c 100644
--- a/arch/ppc/platforms/katana.c
+++ b/arch/ppc/platforms/katana.c
@@ -838,27 +838,6 @@ katana_find_end_of_memory(void)
return bdp->bi_memsize;
}
-#if defined(CONFIG_I2C_MV64XXX) && defined(CONFIG_SENSORS_M41T00)
-extern ulong m41t00_get_rtc_time(void);
-extern int m41t00_set_rtc_time(ulong);
-
-static int __init
-katana_rtc_hookup(void)
-{
- struct timespec tv;
-
- ppc_md.get_rtc_time = m41t00_get_rtc_time;
- ppc_md.set_rtc_time = m41t00_set_rtc_time;
-
- tv.tv_nsec = 0;
- tv.tv_sec = (ppc_md.get_rtc_time)();
- do_settimeofday(&tv);
-
- return 0;
-}
-late_initcall(katana_rtc_hookup);
-#endif
-
#if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
static void __init
katana_map_io(void)
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 2e1c24f..5b8eb02 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -4,32 +4,6 @@
menu "Miscellaneous I2C Chip support"
-config SENSORS_DS1337
- tristate "Dallas DS1337 and DS1339 Real Time Clock (DEPRECATED)"
- depends on EXPERIMENTAL
- help
- If you say yes here you get support for Dallas Semiconductor
- DS1337 and DS1339 real-time clock chips.
-
- This driver can also be built as a module. If so, the module
- will be called ds1337.
-
- This driver is deprecated and will be dropped soon. Use
- rtc-ds1307 instead.
-
-config SENSORS_DS1374
- tristate "Dallas DS1374 Real Time Clock (DEPRECATED)"
- depends on EXPERIMENTAL
- help
- If you say yes here you get support for Dallas Semiconductor
- DS1374 real-time clock chips.
-
- This driver can also be built as a module. If so, the module
- will be called ds1374.
-
- This driver is deprecated and will be dropped soon. Use
- rtc-ds1374 instead.
-
config DS1682
tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
depends on EXPERIMENTAL
@@ -116,18 +90,6 @@ config TPS65010
This driver can also be built as a module. If so, the module
will be called tps65010.
-config SENSORS_M41T00
- tristate "ST M41T00 RTC chip (DEPRECATED)"
- depends on PPC32
- help
- If you say yes here you get support for the ST M41T00 RTC chip.
-
- This driver can also be built as a module. If so, the module
- will be called m41t00.
-
- This driver is deprecated and will be dropped soon. Use
- rtc-ds1307 or rtc-m41t80 instead.
-
config SENSORS_MAX6875
tristate "Maxim MAX6875 Power supply supervisor"
depends on EXPERIMENTAL
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index ca924e1..1d5d1a5 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -2,12 +2,9 @@
# Makefile for miscellaneous I2C chip drivers.
#
-obj-$(CONFIG_SENSORS_DS1337) += ds1337.o
-obj-$(CONFIG_SENSORS_DS1374) += ds1374.o
obj-$(CONFIG_DS1682) += ds1682.o
obj-$(CONFIG_SENSORS_EEPROM) += eeprom.o
obj-$(CONFIG_SENSORS_MAX6875) += max6875.o
-obj-$(CONFIG_SENSORS_M41T00) += m41t00.o
obj-$(CONFIG_SENSORS_PCA9539) += pca9539.o
obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o
obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
diff --git a/drivers/i2c/chips/ds1337.c b/drivers/i2c/chips/ds1337.c
deleted file mode 100644
index ec17d6b..0000000
--- a/drivers/i2c/chips/ds1337.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * linux/drivers/i2c/chips/ds1337.c
- *
- * Copyright (C) 2005 James Chapman <[email protected]>
- *
- * based on linux/drivers/acorn/char/pcf8583.c
- * Copyright (C) 2000 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Driver for Dallas Semiconductor DS1337 and DS1339 real time clock chip
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/string.h>
-#include <linux/rtc.h> /* get the user-level API */
-#include <linux/bcd.h>
-#include <linux/list.h>
-
-/* Device registers */
-#define DS1337_REG_HOUR 2
-#define DS1337_REG_DAY 3
-#define DS1337_REG_DATE 4
-#define DS1337_REG_MONTH 5
-#define DS1337_REG_CONTROL 14
-#define DS1337_REG_STATUS 15
-
-/* FIXME - how do we export these interface constants? */
-#define DS1337_GET_DATE 0
-#define DS1337_SET_DATE 1
-
-/*
- * Functions declaration
- */
-static unsigned short normal_i2c[] = { 0x68, I2C_CLIENT_END };
-
-I2C_CLIENT_INSMOD_1(ds1337);
-
-static int ds1337_attach_adapter(struct i2c_adapter *adapter);
-static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind);
-static void ds1337_init_client(struct i2c_client *client);
-static int ds1337_detach_client(struct i2c_client *client);
-static int ds1337_command(struct i2c_client *client, unsigned int cmd,
- void *arg);
-
-/*
- * Driver data (common to all clients)
- */
-static struct i2c_driver ds1337_driver = {
- .driver = {
- .name = "ds1337",
- },
- .attach_adapter = ds1337_attach_adapter,
- .detach_client = ds1337_detach_client,
- .command = ds1337_command,
-};
-
-/*
- * Client data (each client gets its own)
- */
-struct ds1337_data {
- struct i2c_client client;
- struct list_head list;
-};
-
-/*
- * Internal variables
- */
-static LIST_HEAD(ds1337_clients);
-
-static inline int ds1337_read(struct i2c_client *client, u8 reg, u8 *value)
-{
- s32 tmp = i2c_smbus_read_byte_data(client, reg);
-
- if (tmp < 0)
- return -EIO;
-
- *value = tmp;
-
- return 0;
-}
-
-/*
- * Chip access functions
- */
-static int ds1337_get_datetime(struct i2c_client *client, struct rtc_time *dt)
-{
- int result;
- u8 buf[7];
- u8 val;
- struct i2c_msg msg[2];
- u8 offs = 0;
-
- if (!dt) {
- dev_dbg(&client->dev, "%s: EINVAL: dt=NULL\n", __FUNCTION__);
- return -EINVAL;
- }
-
- msg[0].addr = client->addr;
- msg[0].flags = 0;
- msg[0].len = 1;
- msg[0].buf = &offs;
-
- msg[1].addr = client->addr;
- msg[1].flags = I2C_M_RD;
- msg[1].len = sizeof(buf);
- msg[1].buf = &buf[0];
-
- result = i2c_transfer(client->adapter, msg, 2);
-
- dev_dbg(&client->dev, "%s: [%d] %02x %02x %02x %02x %02x %02x %02x\n",
- __FUNCTION__, result, buf[0], buf[1], buf[2], buf[3],
- buf[4], buf[5], buf[6]);
-
- if (result == 2) {
- dt->tm_sec = BCD2BIN(buf[0]);
- dt->tm_min = BCD2BIN(buf[1]);
- val = buf[2] & 0x3f;
- dt->tm_hour = BCD2BIN(val);
- dt->tm_wday = BCD2BIN(buf[3]) - 1;
- dt->tm_mday = BCD2BIN(buf[4]);
- val = buf[5] & 0x7f;
- dt->tm_mon = BCD2BIN(val) - 1;
- dt->tm_year = BCD2BIN(buf[6]);
- if (buf[5] & 0x80)
- dt->tm_year += 100;
-
- dev_dbg(&client->dev, "%s: secs=%d, mins=%d, "
- "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
- __FUNCTION__, dt->tm_sec, dt->tm_min,
- dt->tm_hour, dt->tm_mday,
- dt->tm_mon, dt->tm_year, dt->tm_wday);
-
- return 0;
- }
-
- dev_err(&client->dev, "error reading data! %d\n", result);
- return -EIO;
-}
-
-static int ds1337_set_datetime(struct i2c_client *client, struct rtc_time *dt)
-{
- int result;
- u8 buf[8];
- u8 val;
- struct i2c_msg msg[1];
-
- if (!dt) {
- dev_dbg(&client->dev, "%s: EINVAL: dt=NULL\n", __FUNCTION__);
- return -EINVAL;
- }
-
- dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "
- "mday=%d, mon=%d, year=%d, wday=%d\n", __FUNCTION__,
- dt->tm_sec, dt->tm_min, dt->tm_hour,
- dt->tm_mday, dt->tm_mon, dt->tm_year, dt->tm_wday);
-
- buf[0] = 0; /* reg offset */
- buf[1] = BIN2BCD(dt->tm_sec);
- buf[2] = BIN2BCD(dt->tm_min);
- buf[3] = BIN2BCD(dt->tm_hour);
- buf[4] = BIN2BCD(dt->tm_wday + 1);
- buf[5] = BIN2BCD(dt->tm_mday);
- buf[6] = BIN2BCD(dt->tm_mon + 1);
- val = dt->tm_year;
- if (val >= 100) {
- val -= 100;
- buf[6] |= (1 << 7);
- }
- buf[7] = BIN2BCD(val);
-
- msg[0].addr = client->addr;
- msg[0].flags = 0;
- msg[0].len = sizeof(buf);
- msg[0].buf = &buf[0];
-
- result = i2c_transfer(client->adapter, msg, 1);
- if (result == 1)
- return 0;
-
- dev_err(&client->dev, "error writing data! %d\n", result);
- return -EIO;
-}
-
-static int ds1337_command(struct i2c_client *client, unsigned int cmd,
- void *arg)
-{
- dev_dbg(&client->dev, "%s: cmd=%d\n", __FUNCTION__, cmd);
-
- switch (cmd) {
- case DS1337_GET_DATE:
- return ds1337_get_datetime(client, arg);
-
- case DS1337_SET_DATE:
- return ds1337_set_datetime(client, arg);
-
- default:
- return -EINVAL;
- }
-}
-
-/*
- * Public API for access to specific device. Useful for low-level
- * RTC access from kernel code.
- */
-int ds1337_do_command(int bus, int cmd, void *arg)
-{
- struct list_head *walk;
- struct list_head *tmp;
- struct ds1337_data *data;
-
- list_for_each_safe(walk, tmp, &ds1337_clients) {
- data = list_entry(walk, struct ds1337_data, list);
- if (data->client.adapter->nr == bus)
- return ds1337_command(&data->client, cmd, arg);
- }
-
- return -ENODEV;
-}
-
-static int ds1337_attach_adapter(struct i2c_adapter *adapter)
-{
- return i2c_probe(adapter, &addr_data, ds1337_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind)
-{
- struct i2c_client *new_client;
- struct ds1337_data *data;
- int err = 0;
- const char *name = "";
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
- I2C_FUNC_I2C))
- goto exit;
-
- if (!(data = kzalloc(sizeof(struct ds1337_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
- INIT_LIST_HEAD(&data->list);
-
- /* The common I2C client data is placed right before the
- * DS1337-specific data.
- */
- new_client = &data->client;
- i2c_set_clientdata(new_client, data);
- new_client->addr = address;
- new_client->adapter = adapter;
- new_client->driver = &ds1337_driver;
- new_client->flags = 0;
-
- /*
- * Now we do the remaining detection. A negative kind means that
- * the driver was loaded with no force parameter (default), so we
- * must both detect and identify the chip. A zero kind means that
- * the driver was loaded with the force parameter, the detection
- * step shall be skipped. A positive kind means that the driver
- * was loaded with the force parameter and a given kind of chip is
- * requested, so both the detection and the identification steps
- * are skipped.
- *
- * For detection, we read registers that are most likely to cause
- * detection failure, i.e. those that have more bits with fixed
- * or reserved values.
- */
-
- /* Default to an DS1337 if forced */
- if (kind == 0)
- kind = ds1337;
-
- if (kind < 0) { /* detection and identification */
- u8 data;
-
- /* Check that status register bits 6-2 are zero */
- if ((ds1337_read(new_client, DS1337_REG_STATUS, &data) < 0) ||
- (data & 0x7c))
- goto exit_free;
-
- /* Check for a valid day register value */
- if ((ds1337_read(new_client, DS1337_REG_DAY, &data) < 0) ||
- (data == 0) || (data & 0xf8))
- goto exit_free;
-
- /* Check for a valid date register value */
- if ((ds1337_read(new_client, DS1337_REG_DATE, &data) < 0) ||
- (data == 0) || (data & 0xc0) || ((data & 0x0f) > 9) ||
- (data >= 0x32))
- goto exit_free;
-
- /* Check for a valid month register value */
- if ((ds1337_read(new_client, DS1337_REG_MONTH, &data) < 0) ||
- (data == 0) || (data & 0x60) || ((data & 0x0f) > 9) ||
- ((data >= 0x13) && (data <= 0x19)))
- goto exit_free;
-
- /* Check that control register bits 6-5 are zero */
- if ((ds1337_read(new_client, DS1337_REG_CONTROL, &data) < 0) ||
- (data & 0x60))
- goto exit_free;
-
- kind = ds1337;
- }
-
- if (kind == ds1337)
- name = "ds1337";
-
- /* We can fill in the remaining client fields */
- strlcpy(new_client->name, name, I2C_NAME_SIZE);
-
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(new_client)))
- goto exit_free;
-
- /* Initialize the DS1337 chip */
- ds1337_init_client(new_client);
-
- /* Add client to local list */
- list_add(&data->list, &ds1337_clients);
-
- return 0;
-
-exit_free:
- kfree(data);
-exit:
- return err;
-}
-
-static void ds1337_init_client(struct i2c_client *client)
-{
- u8 status, control;
-
- /* On some boards, the RTC isn't configured by boot firmware.
- * Handle that case by starting/configuring the RTC now.
- */
- status = i2c_smbus_read_byte_data(client, DS1337_REG_STATUS);
- control = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);
-
- if ((status & 0x80) || (control & 0x80)) {
- /* RTC not running */
- u8 buf[1+16]; /* First byte is interpreted as address */
- struct i2c_msg msg[1];
-
- dev_dbg(&client->dev, "%s: RTC not running!\n", __FUNCTION__);
-
- /* Initialize all, including STATUS and CONTROL to zero */
- memset(buf, 0, sizeof(buf));
-
- /* Write valid values in the date/time registers */
- buf[1+DS1337_REG_DAY] = 1;
- buf[1+DS1337_REG_DATE] = 1;
- buf[1+DS1337_REG_MONTH] = 1;
-
- msg[0].addr = client->addr;
- msg[0].flags = 0;
- msg[0].len = sizeof(buf);
- msg[0].buf = &buf[0];
-
- i2c_transfer(client->adapter, msg, 1);
- } else {
- /* Running: ensure that device is set in 24-hour mode */
- s32 val;
-
- val = i2c_smbus_read_byte_data(client, DS1337_REG_HOUR);
- if ((val >= 0) && (val & (1 << 6)))
- i2c_smbus_write_byte_data(client, DS1337_REG_HOUR,
- val & 0x3f);
- }
-}
-
-static int ds1337_detach_client(struct i2c_client *client)
-{
- int err;
- struct ds1337_data *data = i2c_get_clientdata(client);
-
- if ((err = i2c_detach_client(client)))
- return err;
-
- list_del(&data->list);
- kfree(data);
- return 0;
-}
-
-static int __init ds1337_init(void)
-{
- return i2c_add_driver(&ds1337_driver);
-}
-
-static void __exit ds1337_exit(void)
-{
- i2c_del_driver(&ds1337_driver);
-}
-
-MODULE_AUTHOR("James Chapman <[email protected]>");
-MODULE_DESCRIPTION("DS1337 RTC driver");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL_GPL(ds1337_do_command);
-
-module_init(ds1337_init);
-module_exit(ds1337_exit);
diff --git a/drivers/i2c/chips/ds1374.c b/drivers/i2c/chips/ds1374.c
deleted file mode 100644
index 8a2ff0c..0000000
--- a/drivers/i2c/chips/ds1374.c
+++ /dev/null
@@ -1,267 +0,0 @@
-/*
- * drivers/i2c/chips/ds1374.c
- *
- * I2C client/driver for the Maxim/Dallas DS1374 Real-Time Clock
- *
- * Author: Randy Vinson <[email protected]>
- *
- * Based on the m41t00.c by Mark Greer <[email protected]>
- *
- * 2005 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-/*
- * This i2c client/driver wedges between the drivers/char/genrtc.c RTC
- * interface and the SMBus interface of the i2c subsystem.
- * It would be more efficient to use i2c msgs/i2c_transfer directly but, as
- * recommened in .../Documentation/i2c/writing-clients section
- * "Sending and receiving", using SMBus level communication is preferred.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/i2c.h>
-#include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/mutex.h>
-#include <linux/workqueue.h>
-
-#define DS1374_REG_TOD0 0x00
-#define DS1374_REG_TOD1 0x01
-#define DS1374_REG_TOD2 0x02
-#define DS1374_REG_TOD3 0x03
-#define DS1374_REG_WDALM0 0x04
-#define DS1374_REG_WDALM1 0x05
-#define DS1374_REG_WDALM2 0x06
-#define DS1374_REG_CR 0x07
-#define DS1374_REG_SR 0x08
-#define DS1374_REG_SR_OSF 0x80
-#define DS1374_REG_TCR 0x09
-
-#define DS1374_DRV_NAME "ds1374"
-
-static DEFINE_MUTEX(ds1374_mutex);
-
-static struct i2c_driver ds1374_driver;
-static struct i2c_client *save_client;
-
-static unsigned short ignore[] = { I2C_CLIENT_END };
-static unsigned short normal_addr[] = { 0x68, I2C_CLIENT_END };
-
-static struct i2c_client_address_data addr_data = {
- .normal_i2c = normal_addr,
- .probe = ignore,
- .ignore = ignore,
-};
-
-static ulong ds1374_read_rtc(void)
-{
- ulong time = 0;
- int reg = DS1374_REG_WDALM0;
-
- while (reg--) {
- s32 tmp;
- if ((tmp = i2c_smbus_read_byte_data(save_client, reg)) < 0) {
- dev_warn(&save_client->dev,
- "can't read from rtc chip\n");
- return 0;
- }
- time = (time << 8) | (tmp & 0xff);
- }
- return time;
-}
-
-static void ds1374_write_rtc(ulong time)
-{
- int reg;
-
- for (reg = DS1374_REG_TOD0; reg < DS1374_REG_WDALM0; reg++) {
- if (i2c_smbus_write_byte_data(save_client, reg, time & 0xff)
- < 0) {
- dev_warn(&save_client->dev,
- "can't write to rtc chip\n");
- break;
- }
- time = time >> 8;
- }
-}
-
-static void ds1374_check_rtc_status(void)
-{
- s32 tmp;
-
- tmp = i2c_smbus_read_byte_data(save_client, DS1374_REG_SR);
- if (tmp < 0) {
- dev_warn(&save_client->dev,
- "can't read status from rtc chip\n");
- return;
- }
- if (tmp & DS1374_REG_SR_OSF) {
- dev_warn(&save_client->dev,
- "oscillator discontinuity flagged, time unreliable\n");
- tmp &= ~DS1374_REG_SR_OSF;
- tmp = i2c_smbus_write_byte_data(save_client, DS1374_REG_SR,
- tmp & 0xff);
- if (tmp < 0)
- dev_warn(&save_client->dev,
- "can't clear discontinuity notification\n");
- }
-}
-
-ulong ds1374_get_rtc_time(void)
-{
- ulong t1, t2;
- int limit = 10; /* arbitrary retry limit */
-
- mutex_lock(&ds1374_mutex);
-
- /*
- * Since the reads are being performed one byte at a time using
- * the SMBus vs a 4-byte i2c transfer, there is a chance that a
- * carry will occur during the read. To detect this, 2 reads are
- * performed and compared.
- */
- do {
- t1 = ds1374_read_rtc();
- t2 = ds1374_read_rtc();
- } while (t1 != t2 && limit--);
-
- mutex_unlock(&ds1374_mutex);
-
- if (t1 != t2) {
- dev_warn(&save_client->dev,
- "can't get consistent time from rtc chip\n");
- t1 = 0;
- }
-
- return t1;
-}
-
-static ulong new_time;
-
-static void ds1374_set_work(struct work_struct *work)
-{
- ulong t1, t2;
- int limit = 10; /* arbitrary retry limit */
-
- t1 = new_time;
-
- mutex_lock(&ds1374_mutex);
-
- /*
- * Since the writes are being performed one byte at a time using
- * the SMBus vs a 4-byte i2c transfer, there is a chance that a
- * carry will occur during the write. To detect this, the write
- * value is read back and compared.
- */
- do {
- ds1374_write_rtc(t1);
- t2 = ds1374_read_rtc();
- } while (t1 != t2 && limit--);
-
- mutex_unlock(&ds1374_mutex);
-
- if (t1 != t2)
- dev_warn(&save_client->dev,
- "can't confirm time set from rtc chip\n");
-}
-
-static struct workqueue_struct *ds1374_workqueue;
-
-static DECLARE_WORK(ds1374_work, ds1374_set_work);
-
-int ds1374_set_rtc_time(ulong nowtime)
-{
- new_time = nowtime;
-
- if (in_interrupt())
- queue_work(ds1374_workqueue, &ds1374_work);
- else
- ds1374_set_work(NULL);
-
- return 0;
-}
-
-/*
- *****************************************************************************
- *
- * Driver Interface
- *
- *****************************************************************************
- */
-static int ds1374_probe(struct i2c_adapter *adap, int addr, int kind)
-{
- struct i2c_client *client;
- int rc;
-
- client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (!client)
- return -ENOMEM;
-
- strncpy(client->name, DS1374_DRV_NAME, I2C_NAME_SIZE);
- client->addr = addr;
- client->adapter = adap;
- client->driver = &ds1374_driver;
-
- ds1374_workqueue = create_singlethread_workqueue("ds1374");
- if (!ds1374_workqueue) {
- kfree(client);
- return -ENOMEM; /* most expected reason */
- }
-
- if ((rc = i2c_attach_client(client)) != 0) {
- kfree(client);
- return rc;
- }
-
- save_client = client;
-
- ds1374_check_rtc_status();
-
- return 0;
-}
-
-static int ds1374_attach(struct i2c_adapter *adap)
-{
- return i2c_probe(adap, &addr_data, ds1374_probe);
-}
-
-static int ds1374_detach(struct i2c_client *client)
-{
- int rc;
-
- if ((rc = i2c_detach_client(client)) == 0) {
- kfree(i2c_get_clientdata(client));
- destroy_workqueue(ds1374_workqueue);
- }
- return rc;
-}
-
-static struct i2c_driver ds1374_driver = {
- .driver = {
- .name = DS1374_DRV_NAME,
- },
- .id = I2C_DRIVERID_DS1374,
- .attach_adapter = ds1374_attach,
- .detach_client = ds1374_detach,
-};
-
-static int __init ds1374_init(void)
-{
- return i2c_add_driver(&ds1374_driver);
-}
-
-static void __exit ds1374_exit(void)
-{
- i2c_del_driver(&ds1374_driver);
-}
-
-module_init(ds1374_init);
-module_exit(ds1374_exit);
-
-MODULE_AUTHOR("Randy Vinson <[email protected]>");
-MODULE_DESCRIPTION("Maxim/Dallas DS1374 RTC I2C Client Driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c
deleted file mode 100644
index 3fcb646..0000000
--- a/drivers/i2c/chips/m41t00.c
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * I2C client/driver for the ST M41T00 family of i2c rtc chips.
- *
- * Author: Mark A. Greer <[email protected]>
- *
- * 2005, 2006 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-/*
- * This i2c client/driver wedges between the drivers/char/genrtc.c RTC
- * interface and the SMBus interface of the i2c subsystem.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/i2c.h>
-#include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/workqueue.h>
-#include <linux/platform_device.h>
-#include <linux/m41t00.h>
-#include <asm/time.h>
-#include <asm/rtc.h>
-
-static struct i2c_driver m41t00_driver;
-static struct i2c_client *save_client;
-
-static unsigned short ignore[] = { I2C_CLIENT_END };
-static unsigned short normal_addr[] = { I2C_CLIENT_END, I2C_CLIENT_END };
-
-static struct i2c_client_address_data addr_data = {
- .normal_i2c = normal_addr,
- .probe = ignore,
- .ignore = ignore,
-};
-
-struct m41t00_chip_info {
- u8 type;
- char *name;
- u8 read_limit;
- u8 sec; /* Offsets for chip regs */
- u8 min;
- u8 hour;
- u8 day;
- u8 mon;
- u8 year;
- u8 alarm_mon;
- u8 alarm_hour;
- u8 sqw;
- u8 sqw_freq;
-};
-
-static struct m41t00_chip_info m41t00_chip_info_tbl[] = {
- {
- .type = M41T00_TYPE_M41T00,
- .name = "m41t00",
- .read_limit = 5,
- .sec = 0,
- .min = 1,
- .hour = 2,
- .day = 4,
- .mon = 5,
- .year = 6,
- },
- {
- .type = M41T00_TYPE_M41T81,
- .name = "m41t81",
- .read_limit = 1,
- .sec = 1,
- .min = 2,
- .hour = 3,
- .day = 5,
- .mon = 6,
- .year = 7,
- .alarm_mon = 0xa,
- .alarm_hour = 0xc,
- .sqw = 0x13,
- },
- {
- .type = M41T00_TYPE_M41T85,
- .name = "m41t85",
- .read_limit = 1,
- .sec = 1,
- .min = 2,
- .hour = 3,
- .day = 5,
- .mon = 6,
- .year = 7,
- .alarm_mon = 0xa,
- .alarm_hour = 0xc,
- .sqw = 0x13,
- },
-};
-static struct m41t00_chip_info *m41t00_chip;
-
-ulong
-m41t00_get_rtc_time(void)
-{
- s32 sec, min, hour, day, mon, year;
- s32 sec1, min1, hour1, day1, mon1, year1;
- u8 reads = 0;
- u8 buf[8], msgbuf[1] = { 0 }; /* offset into rtc's regs */
- struct i2c_msg msgs[] = {
- {
- .addr = save_client->addr,
- .flags = 0,
- .len = 1,
- .buf = msgbuf,
- },
- {
- .addr = save_client->addr,
- .flags = I2C_M_RD,
- .len = 8,
- .buf = buf,
- },
- };
-
- sec = min = hour = day = mon = year = 0;
-
- do {
- if (i2c_transfer(save_client->adapter, msgs, 2) < 0)
- goto read_err;
-
- sec1 = sec;
- min1 = min;
- hour1 = hour;
- day1 = day;
- mon1 = mon;
- year1 = year;
-
- sec = buf[m41t00_chip->sec] & 0x7f;
- min = buf[m41t00_chip->min] & 0x7f;
- hour = buf[m41t00_chip->hour] & 0x3f;
- day = buf[m41t00_chip->day] & 0x3f;
- mon = buf[m41t00_chip->mon] & 0x1f;
- year = buf[m41t00_chip->year];
- } while ((++reads < m41t00_chip->read_limit) && ((sec != sec1)
- || (min != min1) || (hour != hour1) || (day != day1)
- || (mon != mon1) || (year != year1)));
-
- if ((m41t00_chip->read_limit > 1) && ((sec != sec1) || (min != min1)
- || (hour != hour1) || (day != day1) || (mon != mon1)
- || (year != year1)))
- goto read_err;
-
- sec = BCD2BIN(sec);
- min = BCD2BIN(min);
- hour = BCD2BIN(hour);
- day = BCD2BIN(day);
- mon = BCD2BIN(mon);
- year = BCD2BIN(year);
-
- year += 1900;
- if (year < 1970)
- year += 100;
-
- return mktime(year, mon, day, hour, min, sec);
-
-read_err:
- dev_err(&save_client->dev, "m41t00_get_rtc_time: Read error\n");
- return 0;
-}
-EXPORT_SYMBOL_GPL(m41t00_get_rtc_time);
-
-static void
-m41t00_set(void *arg)
-{
- struct rtc_time tm;
- int nowtime = *(int *)arg;
- s32 sec, min, hour, day, mon, year;
- u8 wbuf[9], *buf = &wbuf[1], msgbuf[1] = { 0 };
- struct i2c_msg msgs[] = {
- {
- .addr = save_client->addr,
- .flags = 0,
- .len = 1,
- .buf = msgbuf,
- },
- {
- .addr = save_client->addr,
- .flags = I2C_M_RD,
- .len = 8,
- .buf = buf,
- },
- };
-
- to_tm(nowtime, &tm);
- tm.tm_year = (tm.tm_year - 1900) % 100;
-
- sec = BIN2BCD(tm.tm_sec);
- min = BIN2BCD(tm.tm_min);
- hour = BIN2BCD(tm.tm_hour);
- day = BIN2BCD(tm.tm_mday);
- mon = BIN2BCD(tm.tm_mon);
- year = BIN2BCD(tm.tm_year);
-
- /* Read reg values into buf[0..7]/wbuf[1..8] */
- if (i2c_transfer(save_client->adapter, msgs, 2) < 0) {
- dev_err(&save_client->dev, "m41t00_set: Read error\n");
- return;
- }
-
- wbuf[0] = 0; /* offset into rtc's regs */
- buf[m41t00_chip->sec] = (buf[m41t00_chip->sec] & ~0x7f) | (sec & 0x7f);
- buf[m41t00_chip->min] = (buf[m41t00_chip->min] & ~0x7f) | (min & 0x7f);
- buf[m41t00_chip->hour] = (buf[m41t00_chip->hour] & ~0x3f) | (hour& 0x3f);
- buf[m41t00_chip->day] = (buf[m41t00_chip->day] & ~0x3f) | (day & 0x3f);
- buf[m41t00_chip->mon] = (buf[m41t00_chip->mon] & ~0x1f) | (mon & 0x1f);
- buf[m41t00_chip->year] = year;
-
- if (i2c_master_send(save_client, wbuf, 9) < 0)
- dev_err(&save_client->dev, "m41t00_set: Write error\n");
-}
-
-static ulong new_time;
-/* well, isn't this API just _lovely_? */
-static void
-m41t00_barf(struct work_struct *unusable)
-{
- m41t00_set(&new_time);
-}
-
-static struct workqueue_struct *m41t00_wq;
-static DECLARE_WORK(m41t00_work, m41t00_barf);
-
-int
-m41t00_set_rtc_time(ulong nowtime)
-{
- new_time = nowtime;
-
- if (in_interrupt())
- queue_work(m41t00_wq, &m41t00_work);
- else
- m41t00_set(&new_time);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(m41t00_set_rtc_time);
-
-/*
- *****************************************************************************
- *
- * platform_data Driver Interface
- *
- *****************************************************************************
- */
-static int __init
-m41t00_platform_probe(struct platform_device *pdev)
-{
- struct m41t00_platform_data *pdata;
- int i;
-
- if (pdev && (pdata = pdev->dev.platform_data)) {
- normal_addr[0] = pdata->i2c_addr;
-
- for (i=0; i<ARRAY_SIZE(m41t00_chip_info_tbl); i++)
- if (m41t00_chip_info_tbl[i].type == pdata->type) {
- m41t00_chip = &m41t00_chip_info_tbl[i];
- m41t00_chip->sqw_freq = pdata->sqw_freq;
- return 0;
- }
- }
- return -ENODEV;
-}
-
-static int __exit
-m41t00_platform_remove(struct platform_device *pdev)
-{
- return 0;
-}
-
-static struct platform_driver m41t00_platform_driver = {
- .probe = m41t00_platform_probe,
- .remove = m41t00_platform_remove,
- .driver = {
- .owner = THIS_MODULE,
- .name = M41T00_DRV_NAME,
- },
-};
-
-/*
- *****************************************************************************
- *
- * Driver Interface
- *
- *****************************************************************************
- */
-static int
-m41t00_probe(struct i2c_adapter *adap, int addr, int kind)
-{
- struct i2c_client *client;
- int rc;
-
- if (!i2c_check_functionality(adap, I2C_FUNC_I2C
- | I2C_FUNC_SMBUS_BYTE_DATA))
- return 0;
-
- client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (!client)
- return -ENOMEM;
-
- strlcpy(client->name, m41t00_chip->name, I2C_NAME_SIZE);
- client->addr = addr;
- client->adapter = adap;
- client->driver = &m41t00_driver;
-
- if ((rc = i2c_attach_client(client)))
- goto attach_err;
-
- if (m41t00_chip->type != M41T00_TYPE_M41T00) {
- /* If asked, disable SQW, set SQW frequency & re-enable */
- if (m41t00_chip->sqw_freq)
- if (((rc = i2c_smbus_read_byte_data(client,
- m41t00_chip->alarm_mon)) < 0)
- || ((rc = i2c_smbus_write_byte_data(client,
- m41t00_chip->alarm_mon, rc & ~0x40)) <0)
- || ((rc = i2c_smbus_write_byte_data(client,
- m41t00_chip->sqw,
- m41t00_chip->sqw_freq)) < 0)
- || ((rc = i2c_smbus_write_byte_data(client,
- m41t00_chip->alarm_mon, rc | 0x40)) <0))
- goto sqw_err;
-
- /* Make sure HT (Halt Update) bit is cleared */
- if ((rc = i2c_smbus_read_byte_data(client,
- m41t00_chip->alarm_hour)) < 0)
- goto ht_err;
-
- if (rc & 0x40)
- if ((rc = i2c_smbus_write_byte_data(client,
- m41t00_chip->alarm_hour, rc & ~0x40))<0)
- goto ht_err;
- }
-
- /* Make sure ST (stop) bit is cleared */
- if ((rc = i2c_smbus_read_byte_data(client, m41t00_chip->sec)) < 0)
- goto st_err;
-
- if (rc & 0x80)
- if ((rc = i2c_smbus_write_byte_data(client, m41t00_chip->sec,
- rc & ~0x80)) < 0)
- goto st_err;
-
- m41t00_wq = create_singlethread_workqueue(m41t00_chip->name);
- save_client = client;
- return 0;
-
-st_err:
- dev_err(&client->dev, "m41t00_probe: Can't clear ST bit\n");
- goto attach_err;
-ht_err:
- dev_err(&client->dev, "m41t00_probe: Can't clear HT bit\n");
- goto attach_err;
-sqw_err:
- dev_err(&client->dev, "m41t00_probe: Can't set SQW Frequency\n");
-attach_err:
- kfree(client);
- return rc;
-}
-
-static int
-m41t00_attach(struct i2c_adapter *adap)
-{
- return i2c_probe(adap, &addr_data, m41t00_probe);
-}
-
-static int
-m41t00_detach(struct i2c_client *client)
-{
- int rc;
-
- if ((rc = i2c_detach_client(client)) == 0) {
- kfree(client);
- destroy_workqueue(m41t00_wq);
- }
- return rc;
-}
-
-static struct i2c_driver m41t00_driver = {
- .driver = {
- .name = M41T00_DRV_NAME,
- },
- .id = I2C_DRIVERID_STM41T00,
- .attach_adapter = m41t00_attach,
- .detach_client = m41t00_detach,
-};
-
-static int __init
-m41t00_init(void)
-{
- int rc;
-
- if (!(rc = platform_driver_register(&m41t00_platform_driver)))
- rc = i2c_add_driver(&m41t00_driver);
- return rc;
-}
-
-static void __exit
-m41t00_exit(void)
-{
- i2c_del_driver(&m41t00_driver);
- platform_driver_unregister(&m41t00_platform_driver);
-}
-
-module_init(m41t00_init);
-module_exit(m41t00_exit);
-
-MODULE_AUTHOR("Mark A. Greer <[email protected]>");
-MODULE_DESCRIPTION("ST Microelectronics M41T00 RTC I2C Client Driver");
-MODULE_LICENSE("GPL");
diff --git a/include/linux/m41t00.h b/include/linux/m41t00.h
deleted file mode 100644
index b423360..0000000
--- a/include/linux/m41t00.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Definitions for the ST M41T00 family of i2c rtc chips.
- *
- * Author: Mark A. Greer <[email protected]>
- *
- * 2005, 2006 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#ifndef _M41T00_H
-#define _M41T00_H
-
-#define M41T00_DRV_NAME "m41t00"
-#define M41T00_I2C_ADDR 0x68
-
-#define M41T00_TYPE_M41T00 0
-#define M41T00_TYPE_M41T81 81
-#define M41T00_TYPE_M41T85 85
-
-struct m41t00_platform_data {
- u8 type;
- u8 i2c_addr;
- u8 sqw_freq;
-};
-
-/* SQW output disabled, this is default value by power on */
-#define M41T00_SQW_DISABLE (0)
-
-#define M41T00_SQW_32KHZ (1<<4) /* 32.768 KHz */
-#define M41T00_SQW_8KHZ (2<<4) /* 8.192 KHz */
-#define M41T00_SQW_4KHZ (3<<4) /* 4.096 KHz */
-#define M41T00_SQW_2KHZ (4<<4) /* 2.048 KHz */
-#define M41T00_SQW_1KHZ (5<<4) /* 1.024 KHz */
-#define M41T00_SQW_512HZ (6<<4) /* 512 Hz */
-#define M41T00_SQW_256HZ (7<<4) /* 256 Hz */
-#define M41T00_SQW_128HZ (8<<4) /* 128 Hz */
-#define M41T00_SQW_64HZ (9<<4) /* 64 Hz */
-#define M41T00_SQW_32HZ (10<<4) /* 32 Hz */
-#define M41T00_SQW_16HZ (11<<4) /* 16 Hz */
-#define M41T00_SQW_8HZ (12<<4) /* 8 Hz */
-#define M41T00_SQW_4HZ (13<<4) /* 4 Hz */
-#define M41T00_SQW_2HZ (14<<4) /* 2 Hz */
-#define M41T00_SQW_1HZ (15<<4) /* 1 Hz */
-
-extern ulong m41t00_get_rtc_time(void);
-extern int m41t00_set_rtc_time(ulong nowtime);
-
-#endif /* _M41T00_H */
-
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