mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-09-12 15:14:38 +03:00
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13457 3c298f89-4303-0410-b956-a3cf2f4a3e73
228 lines
6.0 KiB
Diff
228 lines
6.0 KiB
Diff
From: Alessandro Zummo <alessandro.zummo@towertech.it>
|
|
Date: Thu, 16 Oct 2008 05:03:10 +0000 (-0700)
|
|
Subject: rtc-ds1672 new style driver
|
|
X-Git-Tag: v2.6.28-rc1~429
|
|
X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=1716b0fea36c2be628440c1050182a1a1e9caae7
|
|
|
|
rtc-ds1672 new style driver
|
|
|
|
New style conversion and reformatting as per indent --linux-style
|
|
|
|
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
|
|
Cc: David Brownell <david-b@pacbell.net>
|
|
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
---
|
|
|
|
--- a/drivers/rtc/rtc-ds1672.c
|
|
+++ b/drivers/rtc/rtc-ds1672.c
|
|
@@ -9,17 +9,10 @@
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
-#include <linux/module.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/rtc.h>
|
|
|
|
-#define DRV_VERSION "0.3"
|
|
-
|
|
-/* Addresses to scan: none. This chip cannot be detected. */
|
|
-static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
|
|
-
|
|
-/* Insmod parameters */
|
|
-I2C_CLIENT_INSMOD;
|
|
+#define DRV_VERSION "0.4"
|
|
|
|
/* Registers */
|
|
|
|
@@ -29,8 +22,7 @@ I2C_CLIENT_INSMOD;
|
|
|
|
#define DS1672_REG_CONTROL_EOSC 0x80
|
|
|
|
-/* Prototypes */
|
|
-static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind);
|
|
+static struct i2c_driver ds1672_driver;
|
|
|
|
/*
|
|
* In the routines that deal directly with the ds1672 hardware, we use
|
|
@@ -44,8 +36,8 @@ static int ds1672_get_datetime(struct i2
|
|
unsigned char buf[4];
|
|
|
|
struct i2c_msg msgs[] = {
|
|
- { client->addr, 0, 1, &addr }, /* setup read ptr */
|
|
- { client->addr, I2C_M_RD, 4, buf }, /* read date */
|
|
+ {client->addr, 0, 1, &addr}, /* setup read ptr */
|
|
+ {client->addr, I2C_M_RD, 4, buf}, /* read date */
|
|
};
|
|
|
|
/* read date registers */
|
|
@@ -80,7 +72,7 @@ static int ds1672_set_mmss(struct i2c_cl
|
|
buf[2] = (secs & 0x0000FF00) >> 8;
|
|
buf[3] = (secs & 0x00FF0000) >> 16;
|
|
buf[4] = (secs & 0xFF000000) >> 24;
|
|
- buf[5] = 0; /* set control reg to enable counting */
|
|
+ buf[5] = 0; /* set control reg to enable counting */
|
|
|
|
xfer = i2c_master_send(client, buf, 6);
|
|
if (xfer != 6) {
|
|
@@ -127,8 +119,8 @@ static int ds1672_get_control(struct i2c
|
|
unsigned char addr = DS1672_REG_CONTROL;
|
|
|
|
struct i2c_msg msgs[] = {
|
|
- { client->addr, 0, 1, &addr }, /* setup read ptr */
|
|
- { client->addr, I2C_M_RD, 1, status }, /* read control */
|
|
+ {client->addr, 0, 1, &addr}, /* setup read ptr */
|
|
+ {client->addr, I2C_M_RD, 1, status}, /* read control */
|
|
};
|
|
|
|
/* read control register */
|
|
@@ -141,7 +133,8 @@ static int ds1672_get_control(struct i2c
|
|
}
|
|
|
|
/* following are the sysfs callback functions */
|
|
-static ssize_t show_control(struct device *dev, struct device_attribute *attr, char *buf)
|
|
+static ssize_t show_control(struct device *dev, struct device_attribute *attr,
|
|
+ char *buf)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
u8 control;
|
|
@@ -152,85 +145,46 @@ static ssize_t show_control(struct devic
|
|
return err;
|
|
|
|
return sprintf(buf, "%s\n", (control & DS1672_REG_CONTROL_EOSC)
|
|
- ? "disabled" : "enabled");
|
|
+ ? "disabled" : "enabled");
|
|
}
|
|
+
|
|
static DEVICE_ATTR(control, S_IRUGO, show_control, NULL);
|
|
|
|
static const struct rtc_class_ops ds1672_rtc_ops = {
|
|
- .read_time = ds1672_rtc_read_time,
|
|
- .set_time = ds1672_rtc_set_time,
|
|
- .set_mmss = ds1672_rtc_set_mmss,
|
|
+ .read_time = ds1672_rtc_read_time,
|
|
+ .set_time = ds1672_rtc_set_time,
|
|
+ .set_mmss = ds1672_rtc_set_mmss,
|
|
};
|
|
|
|
-static int ds1672_attach(struct i2c_adapter *adapter)
|
|
-{
|
|
- return i2c_probe(adapter, &addr_data, ds1672_probe);
|
|
-}
|
|
-
|
|
-static int ds1672_detach(struct i2c_client *client)
|
|
+static int ds1672_remove(struct i2c_client *client)
|
|
{
|
|
- int err;
|
|
struct rtc_device *rtc = i2c_get_clientdata(client);
|
|
|
|
- if (rtc)
|
|
+ if (rtc)
|
|
rtc_device_unregister(rtc);
|
|
|
|
- if ((err = i2c_detach_client(client)))
|
|
- return err;
|
|
-
|
|
- kfree(client);
|
|
-
|
|
return 0;
|
|
}
|
|
|
|
-static struct i2c_driver ds1672_driver = {
|
|
- .driver = {
|
|
- .name = "ds1672",
|
|
- },
|
|
- .id = I2C_DRIVERID_DS1672,
|
|
- .attach_adapter = &ds1672_attach,
|
|
- .detach_client = &ds1672_detach,
|
|
-};
|
|
-
|
|
-static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind)
|
|
+static int ds1672_probe(struct i2c_client *client,
|
|
+ const struct i2c_device_id *id)
|
|
{
|
|
int err = 0;
|
|
u8 control;
|
|
- struct i2c_client *client;
|
|
struct rtc_device *rtc;
|
|
|
|
- dev_dbg(&adapter->dev, "%s\n", __func__);
|
|
-
|
|
- if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
|
|
- err = -ENODEV;
|
|
- goto exit;
|
|
- }
|
|
-
|
|
- if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
|
|
- err = -ENOMEM;
|
|
- goto exit;
|
|
- }
|
|
+ dev_dbg(&client->dev, "%s\n", __func__);
|
|
|
|
- /* I2C client */
|
|
- client->addr = address;
|
|
- client->driver = &ds1672_driver;
|
|
- client->adapter = adapter;
|
|
-
|
|
- strlcpy(client->name, ds1672_driver.driver.name, I2C_NAME_SIZE);
|
|
-
|
|
- /* Inform the i2c layer */
|
|
- if ((err = i2c_attach_client(client)))
|
|
- goto exit_kfree;
|
|
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
|
|
+ return -ENODEV;
|
|
|
|
dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
|
|
|
|
rtc = rtc_device_register(ds1672_driver.driver.name, &client->dev,
|
|
- &ds1672_rtc_ops, THIS_MODULE);
|
|
+ &ds1672_rtc_ops, THIS_MODULE);
|
|
|
|
- if (IS_ERR(rtc)) {
|
|
- err = PTR_ERR(rtc);
|
|
- goto exit_detach;
|
|
- }
|
|
+ if (IS_ERR(rtc))
|
|
+ return PTR_ERR(rtc);
|
|
|
|
i2c_set_clientdata(client, rtc);
|
|
|
|
@@ -241,7 +195,7 @@ static int ds1672_probe(struct i2c_adapt
|
|
|
|
if (control & DS1672_REG_CONTROL_EOSC)
|
|
dev_warn(&client->dev, "Oscillator not enabled. "
|
|
- "Set time to enable.\n");
|
|
+ "Set time to enable.\n");
|
|
|
|
/* Register sysfs hooks */
|
|
err = device_create_file(&client->dev, &dev_attr_control);
|
|
@@ -250,19 +204,19 @@ static int ds1672_probe(struct i2c_adapt
|
|
|
|
return 0;
|
|
|
|
-exit_devreg:
|
|
+ exit_devreg:
|
|
rtc_device_unregister(rtc);
|
|
-
|
|
-exit_detach:
|
|
- i2c_detach_client(client);
|
|
-
|
|
-exit_kfree:
|
|
- kfree(client);
|
|
-
|
|
-exit:
|
|
return err;
|
|
}
|
|
|
|
+static struct i2c_driver ds1672_driver = {
|
|
+ .driver = {
|
|
+ .name = "rtc-ds1672",
|
|
+ },
|
|
+ .probe = &ds1672_probe,
|
|
+ .remove = &ds1672_remove,
|
|
+};
|
|
+
|
|
static int __init ds1672_init(void)
|
|
{
|
|
return i2c_add_driver(&ds1672_driver);
|