diff options
| -rw-r--r-- | drivers/rtc/rtc-rp5c01.c | 65 |
1 files changed, 24 insertions, 41 deletions
diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index 38a1243..043b166 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -64,7 +64,6 @@ struct rp5c01_priv { u32 __iomem *regs; struct rtc_device *rtc; spinlock_t lock; /* against concurrent RTC/NVRAM access */ - struct bin_attribute nvram_attr; }; static inline unsigned int rp5c01_read(struct rp5c01_priv *priv, @@ -160,17 +159,15 @@ static const struct rtc_class_ops rp5c01_rtc_ops = { * byte is stored in BLOCK10, the low nibble in BLOCK11. */ -static ssize_t rp5c01_nvram_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t pos, size_t size) +static int rp5c01_nvram_read(void *_priv, unsigned int pos, void *val, + size_t bytes) { - struct device *dev = container_of(kobj, struct device, kobj); - struct rp5c01_priv *priv = dev_get_drvdata(dev); - ssize_t count; + struct rp5c01_priv *priv = _priv; + u8 *buf = val; spin_lock_irq(&priv->lock); - for (count = 0; count < size; count++) { + for (; bytes; bytes--) { u8 data; rp5c01_write(priv, @@ -187,20 +184,18 @@ static ssize_t rp5c01_nvram_read(struct file *filp, struct kobject *kobj, } spin_unlock_irq(&priv->lock); - return count; + return 0; } -static ssize_t rp5c01_nvram_write(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t pos, size_t size) +static int rp5c01_nvram_write(void *_priv, unsigned int pos, void *val, + size_t bytes) { - struct device *dev = container_of(kobj, struct device, kobj); - struct rp5c01_priv *priv = dev_get_drvdata(dev); - ssize_t count; + struct rp5c01_priv *priv = _priv; + u8 *buf = val; spin_lock_irq(&priv->lock); - for (count = 0; count < size; count++) { + for (; bytes; bytes--) { u8 data = *buf++; rp5c01_write(priv, @@ -216,7 +211,7 @@ static ssize_t rp5c01_nvram_write(struct file *filp, struct kobject *kobj, } spin_unlock_irq(&priv->lock); - return count; + return 0; } static int __init rp5c01_rtc_probe(struct platform_device *dev) @@ -225,6 +220,14 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) struct rp5c01_priv *priv; struct rtc_device *rtc; int error; + struct nvmem_config nvmem_cfg = { + .name = "rp5c01_nvram", + .word_size = 1, + .stride = 1, + .size = RP5C01_MODE, + .reg_read = rp5c01_nvram_read, + .reg_write = rp5c01_nvram_write, + }; res = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!res) @@ -238,13 +241,6 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) if (!priv->regs) return -ENOMEM; - sysfs_bin_attr_init(&priv->nvram_attr); - priv->nvram_attr.attr.name = "nvram"; - priv->nvram_attr.attr.mode = S_IRUGO | S_IWUSR; - priv->nvram_attr.read = rp5c01_nvram_read; - priv->nvram_attr.write = rp5c01_nvram_write; - priv->nvram_attr.size = RP5C01_MODE; - spin_lock_init(&priv->lock); platform_set_drvdata(dev, priv); @@ -254,35 +250,22 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) return PTR_ERR(rtc); rtc->ops = &rp5c01_rtc_ops; + rtc->nvram_old_abi = true; priv->rtc = rtc; - error = sysfs_create_bin_file(&dev->dev.kobj, &priv->nvram_attr); + nvmem_cfg.priv = priv; + error = rtc_nvmem_register(rtc, &nvmem_cfg); if (error) return error; - error = rtc_register_device(rtc); - if (error) { - sysfs_remove_bin_file(&dev->dev.kobj, &priv->nvram_attr); - return error; - } - - return 0; -} - -static int __exit rp5c01_rtc_remove(struct platform_device *dev) -{ - struct rp5c01_priv *priv = platform_get_drvdata(dev); - - sysfs_remove_bin_file(&dev->dev.kobj, &priv->nvram_attr); - return 0; + return rtc_register_device(rtc); } static struct platform_driver rp5c01_rtc_driver = { .driver = { .name = "rtc-rp5c01", }, - .remove = __exit_p(rp5c01_rtc_remove), }; module_platform_driver_probe(rp5c01_rtc_driver, rp5c01_rtc_probe); |
