diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/rtc/rtc-ds1685.c | 92 |
1 files changed, 25 insertions, 67 deletions
diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index 2bad1f50414f..1f85e46b7888 100644 --- a/drivers/rtc/rtc-ds1685.c +++ b/drivers/rtc/rtc-ds1685.c @@ -866,30 +866,13 @@ ds1685_rtc_ops = { }; /* ----------------------------------------------------------------------- */ - -/* ----------------------------------------------------------------------- */ -/* SysFS interface */ - -#ifdef CONFIG_SYSFS -/** - * ds1685_rtc_sysfs_nvram_read - reads rtc nvram via sysfs. - * @file: pointer to file structure. - * @kobj: pointer to kobject structure. - * @bin_attr: pointer to bin_attribute structure. - * @buf: pointer to char array to hold the output. - * @pos: current file position pointer. - * @size: size of the data to read. - */ -static ssize_t -ds1685_rtc_sysfs_nvram_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, - loff_t pos, size_t size) +static int ds1685_nvram_read(void *priv, unsigned int pos, void *val, + size_t size) { - struct platform_device *pdev = - to_platform_device(container_of(kobj, struct device, kobj)); - struct ds1685_priv *rtc = platform_get_drvdata(pdev); + struct ds1685_priv *rtc = priv; ssize_t count; unsigned long flags = 0; + u8 *buf = val; spin_lock_irqsave(&rtc->lock, flags); ds1685_rtc_switch_to_bank0(rtc); @@ -943,33 +926,16 @@ ds1685_rtc_sysfs_nvram_read(struct file *filp, struct kobject *kobj, #endif /* !CONFIG_RTC_DRV_DS1689 */ spin_unlock_irqrestore(&rtc->lock, flags); - /* - * XXX: Bug? this appears to cause the function to get executed - * several times in succession. But it's the only way to actually get - * data written out to a file. - */ - return count; + return 0; } -/** - * ds1685_rtc_sysfs_nvram_write - writes rtc nvram via sysfs. - * @file: pointer to file structure. - * @kobj: pointer to kobject structure. - * @bin_attr: pointer to bin_attribute structure. - * @buf: pointer to char array to hold the input. - * @pos: current file position pointer. - * @size: size of the data to write. - */ -static ssize_t -ds1685_rtc_sysfs_nvram_write(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, - loff_t pos, size_t size) +static int ds1685_nvram_write(void *priv, unsigned int pos, void *val, + size_t size) { - struct platform_device *pdev = - to_platform_device(container_of(kobj, struct device, kobj)); - struct ds1685_priv *rtc = platform_get_drvdata(pdev); + struct ds1685_priv *rtc = priv; ssize_t count; unsigned long flags = 0; + u8 *buf = val; spin_lock_irqsave(&rtc->lock, flags); ds1685_rtc_switch_to_bank0(rtc); @@ -1023,27 +989,13 @@ ds1685_rtc_sysfs_nvram_write(struct file *filp, struct kobject *kobj, #endif /* !CONFIG_RTC_DRV_DS1689 */ spin_unlock_irqrestore(&rtc->lock, flags); - return count; + return 0; } -/** - * struct ds1685_rtc_sysfs_nvram_attr - sysfs attributes for rtc nvram. - * @attr: nvram attributes. - * @read: nvram read function. - * @write: nvram write function. - * @size: nvram total size (bank0 + extended). - */ -static struct bin_attribute -ds1685_rtc_sysfs_nvram_attr = { - .attr = { - .name = "nvram", - .mode = S_IRUGO | S_IWUSR, - }, - .read = ds1685_rtc_sysfs_nvram_read, - .write = ds1685_rtc_sysfs_nvram_write, - .size = NVRAM_TOTAL_SZ -}; +/* ----------------------------------------------------------------------- */ +/* SysFS interface */ +#ifdef CONFIG_SYSFS /** * ds1685_rtc_sysfs_battery_show - sysfs file for main battery status. * @dev: pointer to device structure. @@ -1136,11 +1088,6 @@ ds1685_rtc_sysfs_register(struct device *dev) { int ret = 0; - sysfs_bin_attr_init(&ds1685_rtc_sysfs_nvram_attr); - ret = sysfs_create_bin_file(&dev->kobj, &ds1685_rtc_sysfs_nvram_attr); - if (ret) - return ret; - ret = sysfs_create_group(&dev->kobj, &ds1685_rtc_sysfs_misc_grp); if (ret) return ret; @@ -1155,7 +1102,6 @@ ds1685_rtc_sysfs_register(struct device *dev) static int ds1685_rtc_sysfs_unregister(struct device *dev) { - sysfs_remove_bin_file(&dev->kobj, &ds1685_rtc_sysfs_nvram_attr); sysfs_remove_group(&dev->kobj, &ds1685_rtc_sysfs_misc_grp); return 0; @@ -1181,6 +1127,12 @@ ds1685_rtc_probe(struct platform_device *pdev) u8 ctrla, ctrlb, hours; unsigned char am_pm; int ret = 0; + struct nvmem_config nvmem_cfg = { + .name = "ds1685_nvram", + .size = NVRAM_TOTAL_SZ, + .reg_read = ds1685_nvram_read, + .reg_write = ds1685_nvram_write, + }; /* Get the platform data. */ pdata = (struct ds1685_rtc_platform_data *) pdev->dev.platform_data; @@ -1444,6 +1396,12 @@ ds1685_rtc_probe(struct platform_device *pdev) return ret; #endif + rtc_dev->nvram_old_abi = true; + nvmem_cfg.priv = rtc; + ret = rtc_nvmem_register(rtc_dev, &nvmem_cfg); + if (ret) + return ret; + return rtc_register_device(rtc_dev); } |