diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/rtc/rtc-rs5c372.c | 95 |
2 files changed, 36 insertions, 63 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 83b071b6ece..905d3308253 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -160,11 +160,11 @@ config RTC_DRV_MAX6900 will be called rtc-max6900. config RTC_DRV_RS5C372 - tristate "Ricoh RS5C372A/B" + tristate "Ricoh RS5C372A/B, RV5C386, RV5C387A" depends on RTC_CLASS && I2C help If you say yes here you get support for the - Ricoh RS5C372A and RS5C372B RTC chips. + Ricoh RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. This driver can also be built as a module. If so, the module will be called rtc-rs5c372. diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c index 09bbe575647..6b67b509792 100644 --- a/drivers/rtc/rtc-rs5c372.c +++ b/drivers/rtc/rtc-rs5c372.c @@ -13,13 +13,7 @@ #include <linux/rtc.h> #include <linux/bcd.h> -#define DRV_VERSION "0.4" - -/* Addresses to scan */ -static unsigned short normal_i2c[] = { /* 0x32,*/ I2C_CLIENT_END }; - -/* Insmod parameters */ -I2C_CLIENT_INSMOD; +#define DRV_VERSION "0.5" /* @@ -88,9 +82,6 @@ struct rs5c372 { unsigned has_irq:1; char buf[17]; char *regs; - - /* on conversion to a "new style" i2c driver, this vanishes */ - struct i2c_client dev; }; static int rs5c_get_regs(struct rs5c372 *rs5c) @@ -483,25 +474,35 @@ static int rs5c_sysfs_register(struct device *dev) return err; } +static void rs5c_sysfs_unregister(struct device *dev) +{ + device_remove_file(dev, &dev_attr_trim); + device_remove_file(dev, &dev_attr_osc); +} + #else static int rs5c_sysfs_register(struct device *dev) { return 0; } + +static void rs5c_sysfs_unregister(struct device *dev) +{ + /* nothing */ +} #endif /* SYSFS */ static struct i2c_driver rs5c372_driver; -static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) +static int rs5c372_probe(struct i2c_client *client) { int err = 0; - struct i2c_client *client; struct rs5c372 *rs5c372; struct rtc_time tm; - dev_dbg(&adapter->dev, "%s\n", __FUNCTION__); + dev_dbg(&client->dev, "%s\n", __FUNCTION__); - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) { + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { err = -ENODEV; goto exit; } @@ -514,35 +515,22 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) /* we read registers 0x0f then 0x00-0x0f; skip the first one */ rs5c372->regs=&rs5c372->buf[1]; - /* On conversion to a "new style" i2c driver, we'll be handed - * the i2c_client (we won't create it) - */ - client = &rs5c372->dev; rs5c372->client = client; - - /* I2C client */ - client->addr = address; - client->driver = &rs5c372_driver; - client->adapter = adapter; - - strlcpy(client->name, rs5c372_driver.driver.name, I2C_NAME_SIZE); - i2c_set_clientdata(client, rs5c372); - /* Inform the i2c layer */ - if ((err = i2c_attach_client(client))) - goto exit_kfree; - err = rs5c_get_regs(rs5c372); if (err < 0) - goto exit_detach; + goto exit_kfree; - /* For "new style" drivers, irq is in i2c_client and chip type - * info comes from i2c_client.dev.platform_data. Meanwhile: - * - * STICK BOARD-SPECIFIC SETUP CODE RIGHT HERE - */ - if (rs5c372->type == rtc_undef) { + if (strcmp(client->name, "rs5c372a") == 0) + rs5c372->type = rtc_rs5c372a; + else if (strcmp(client->name, "rs5c372b") == 0) + rs5c372->type = rtc_rs5c372b; + else if (strcmp(client->name, "rv5c386") == 0) + rs5c372->type = rtc_rv5c386; + else if (strcmp(client->name, "rv5c387a") == 0) + rs5c372->type = rtc_rv5c387a; + else { rs5c372->type = rtc_rs5c372b; dev_warn(&client->dev, "assuming rs5c372b\n"); } @@ -567,7 +555,7 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) break; default: dev_err(&client->dev, "unknown RTC type\n"); - goto exit_detach; + goto exit_kfree; } /* if the oscillator lost power and no other software (like @@ -601,7 +589,7 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) if ((i2c_master_send(client, buf, 3)) != 3) { dev_err(&client->dev, "setup error\n"); - goto exit_detach; + goto exit_kfree; } rs5c372->regs[RS5C_REG_CTRL1] = buf[1]; rs5c372->regs[RS5C_REG_CTRL2] = buf[2]; @@ -621,14 +609,14 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) rs5c372->time24 ? "24hr" : "am/pm" ); - /* FIXME when client->irq exists, use it to register alarm irq */ + /* REVISIT use client->irq to register alarm irq ... */ rs5c372->rtc = rtc_device_register(rs5c372_driver.driver.name, &client->dev, &rs5c372_rtc_ops, THIS_MODULE); if (IS_ERR(rs5c372->rtc)) { err = PTR_ERR(rs5c372->rtc); - goto exit_detach; + goto exit_kfree; } err = rs5c_sysfs_register(&client->dev); @@ -640,9 +628,6 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) exit_devreg: rtc_device_unregister(rs5c372->rtc); -exit_detach: - i2c_detach_client(client); - exit_kfree: kfree(rs5c372); @@ -650,24 +635,12 @@ exit: return err; } -static int rs5c372_attach(struct i2c_adapter *adapter) +static int rs5c372_remove(struct i2c_client *client) { - return i2c_probe(adapter, &addr_data, rs5c372_probe); -} - -static int rs5c372_detach(struct i2c_client *client) -{ - int err; struct rs5c372 *rs5c372 = i2c_get_clientdata(client); - if (rs5c372->rtc) - rtc_device_unregister(rs5c372->rtc); - - /* REVISIT properly destroy the sysfs files ... */ - - if ((err = i2c_detach_client(client))) - return err; - + rtc_device_unregister(rs5c372->rtc); + rs5c_sysfs_unregister(&client->dev); kfree(rs5c372); return 0; } @@ -676,8 +649,8 @@ static struct i2c_driver rs5c372_driver = { .driver = { .name = "rtc-rs5c372", }, - .attach_adapter = &rs5c372_attach, - .detach_client = &rs5c372_detach, + .probe = rs5c372_probe, + .remove = rs5c372_remove, }; static __init int rs5c372_init(void) |