target/linux/omap24xx/patches-2.6.38/534-cbus-retu-wdt-remove-unused-interfaces.patch

   1 --- a/drivers/cbus/retu-wdt.c
   2 +++ b/drivers/cbus/retu-wdt.c
   3 @@ -52,7 +52,6 @@ static DEFINE_MUTEX(retu_wdt_mutex);
   4
   5  /* Current period of watchdog */
   6  static unsigned int period_val = RETU_WDT_DEFAULT_TIMER;
   7 -static int counter_param = RETU_WDT_MAX_TIMER;
   8
   9  struct retu_wdt_dev {
  10         struct device           *dev;
  11 @@ -109,56 +108,6 @@ static void retu_wdt_ping_work(struct wo
  12         retu_wdt_ping_enable(wdev);
  13  }
  14
  15 -static ssize_t retu_wdt_period_show(struct device *dev,
  16 -                               struct device_attribute *attr, char *buf)
  17 -{
  18 -       /* Show current max counter */
  19 -       return sprintf(buf, "%u\n", (u16)period_val);
  20 -}
  21 -
  22 -/*
  23 - * Note: This inteface is non-standard and likely to disappear!
  24 - * Use /dev/watchdog instead, that's the standard.
  25 - */
  26 -static ssize_t retu_wdt_period_store(struct device *dev,
  27 -                               struct device_attribute *attr,
  28 -                               const char *buf, size_t count)
  29 -{
  30 -       unsigned int new_period;
  31 -       int ret;
  32 -
  33 -#ifdef CONFIG_WATCHDOG_NOWAYOUT
  34 -       retu_wdt_ping_disable(retu_wdt);
  35 -#endif
  36 -
  37 -       if (sscanf(buf, "%u", &new_period) != 1) {
  38 -               printk(KERN_ALERT "retu_wdt_period_store: Invalid input\n");
  39 -               return -EINVAL;
  40 -       }
  41 -
  42 -       ret = retu_modify_counter(new_period);
  43 -       if (ret < 0)
  44 -               return ret;
  45 -
  46 -       return strnlen(buf, count);
  47 -}
  48 -
  49 -static ssize_t retu_wdt_counter_show(struct device *dev,
  50 -                               struct device_attribute *attr, char *buf)
  51 -{
  52 -       u16 counter;
  53 -
  54 -       /* Show current value in watchdog counter */
  55 -       counter = retu_read_reg(dev, RETU_REG_WATCHDOG);
  56 -
  57 -       /* Only the 5 LSB are important */
  58 -       return snprintf(buf, PAGE_SIZE, "%u\n", (counter & 0x3F));
  59 -}
  60 -
  61 -static DEVICE_ATTR(period, S_IRUGO | S_IWUSR, retu_wdt_period_show, \
  62 -                       retu_wdt_period_store);
  63 -static DEVICE_ATTR(counter, S_IRUGO, retu_wdt_counter_show, NULL);
  64 -
  65  static int retu_wdt_open(struct inode *inode, struct file *file)
  66  {
  67         if (test_and_set_bit(0, &retu_wdt->users))
  68 @@ -232,18 +181,6 @@ static long retu_wdt_ioctl(struct file *
  69         return 0;
  70  }
  71
  72 -/* Start kicking retu watchdog until user space starts doing the kicking */
  73 -static int __devinit retu_wdt_ping(void)
  74 -{
  75 -#ifdef CONFIG_WATCHDOG_NOWAYOUT
  76 -       retu_modify_counter(RETU_WDT_MAX_TIMER);
  77 -#else
  78 -       retu_wdt_ping_enable(retu_wdt);
  79 -#endif
  80 -
  81 -       return 0;
  82 -}
  83 -
  84  static const struct file_operations retu_wdt_fops = {
  85         .owner          = THIS_MODULE,
  86         .write          = retu_wdt_write,
  87 @@ -252,8 +189,6 @@ static const struct file_operations retu
  88         .release        = retu_wdt_release,
  89  };
  90
  91 -/*----------------------------------------------------------------------------*/
  92 -
  93  static int __init retu_wdt_probe(struct platform_device *pdev)
  94  {
  95         struct retu_wdt_dev *wdev;
  96 @@ -265,18 +200,6 @@ static int __init retu_wdt_probe(struct
  97
  98         wdev->dev = &pdev->dev;
  99
 100 -       ret = device_create_file(&pdev->dev, &dev_attr_period);
 101 -       if (ret) {
 102 -               dev_err(&pdev->dev, "Error creating sysfs period\n");
 103 -               goto free1;
 104 -       }
 105 -
 106 -       ret = device_create_file(&pdev->dev, &dev_attr_counter);
 107 -       if (ret) {
 108 -               dev_err(&pdev->dev, "Error creating sysfs counter\n");
 109 -               goto free2;
 110 -       }
 111 -
 112         platform_set_drvdata(pdev, wdev);
 113         retu_wdt = wdev;
 114         wdev->retu_wdt_miscdev.parent = &pdev->dev;
 115 @@ -286,38 +209,21 @@ static int __init retu_wdt_probe(struct
 116
 117         ret = misc_register(&(wdev->retu_wdt_miscdev));
 118         if (ret)
 119 -               goto free3;
 120 +               goto err_free_wdev;
 121
 122         INIT_DELAYED_WORK(&wdev->ping_work, retu_wdt_ping_work);
 123
 124 -       /* passed as module parameter? */
 125 -       ret = retu_modify_counter(counter_param);
 126 -       if (ret == -EINVAL) {
 127 -               ret = retu_modify_counter(RETU_WDT_DEFAULT_TIMER);
 128 -               dev_dbg(&pdev->dev, "Initializing to default value\n");
 129 -       }
 130 -
 131 -       /* Kick the watchdog for kernel booting to finish */
 132 +       /* Kick the watchdog for kernel booting to finish.
 133 +        * If nowayout is not set, we start the ping work. */
 134 +#ifdef CONFIG_WATCHDOG_NOWAYOUT
 135         retu_modify_counter(RETU_WDT_MAX_TIMER);
 136 -
 137 -       ret = retu_wdt_ping();
 138 -       if (ret < 0) {
 139 -               dev_err(&pdev->dev, "Failed to ping\n");
 140 -               goto free4;
 141 -       }
 142 +#else
 143 +       retu_wdt_ping_enable(retu_wdt);
 144 +#endif
 145
 146         return 0;
 147
 148 -free4:
 149 -       misc_deregister(&wdev->retu_wdt_miscdev);
 150 -
 151 -free3:
 152 -       device_remove_file(&pdev->dev, &dev_attr_counter);
 153 -
 154 -free2:
 155 -       device_remove_file(&pdev->dev, &dev_attr_period);
 156 -
 157 -free1:
 158 +err_free_wdev:
 159         kfree(wdev);
 160
 161         return ret;
 162 @@ -329,8 +235,6 @@ static int __devexit retu_wdt_remove(str
 163
 164         wdev = platform_get_drvdata(pdev);
 165         misc_deregister(&wdev->retu_wdt_miscdev);
 166 -       device_remove_file(&pdev->dev, &dev_attr_period);
 167 -       device_remove_file(&pdev->dev, &dev_attr_counter);
 168         cancel_delayed_work_sync(&wdev->ping_work);
 169         kfree(wdev);
 170
 171 @@ -356,9 +260,7 @@ static void __exit retu_wdt_exit(void)
 172
 173  module_init(retu_wdt_init);
 174  module_exit(retu_wdt_exit);
 175 -module_param(counter_param, int, 0);
 176
 177  MODULE_DESCRIPTION("Retu WatchDog");
 178  MODULE_AUTHOR("Amit Kucheria");
 179  MODULE_LICENSE("GPL");
 180 -