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-rw-r--r--drivers/rtc/Kconfig42
-rw-r--r--drivers/rtc/Makefile2
-rw-r--r--drivers/rtc/rtc-cmos.c9
-rw-r--r--drivers/rtc/rtc-ds1307.c20
-rw-r--r--drivers/rtc/rtc-ep93xx.c24
-rw-r--r--drivers/rtc/rtc-imxdi.c6
-rw-r--r--drivers/rtc/rtc-lpc32xx.c12
-rw-r--r--drivers/rtc/rtc-m41t93.c46
-rw-r--r--drivers/rtc/rtc-pcf8563.c44
-rw-r--r--drivers/rtc/rtc-pl031.c14
-rw-r--r--drivers/rtc/rtc-s3c.c2
-rw-r--r--drivers/rtc/rtc-spear.c10
-rw-r--r--drivers/rtc/rtc-tegra.c50
-rw-r--r--drivers/rtc/rtc-wm831x.c2
14 files changed, 162 insertions, 121 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 4161bfe462c..08cbdb900a1 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -620,27 +620,6 @@ config RTC_DRV_MSM6242
This driver can also be built as a module. If so, the module
will be called rtc-msm6242.
-config RTC_DRV_IMXDI
- tristate "Freescale IMX DryIce Real Time Clock"
- depends on ARCH_MX25
- depends on RTC_CLASS
- help
- Support for Freescale IMX DryIce RTC
-
- This driver can also be built as a module, if so, the module
- will be called "rtc-imxdi".
-
-config RTC_MXC
- tristate "Freescale MXC Real Time Clock"
- depends on ARCH_MXC
- depends on RTC_CLASS
- help
- If you say yes here you get support for the Freescale MXC
- RTC module.
-
- This driver can also be built as a module, if so, the module
- will be called "rtc-mxc".
-
config RTC_DRV_BQ4802
tristate "TI BQ4802"
help
@@ -738,6 +717,16 @@ config RTC_DRV_DAVINCI
This driver can also be built as a module. If so, the module
will be called rtc-davinci.
+config RTC_DRV_IMXDI
+ tristate "Freescale IMX DryIce Real Time Clock"
+ depends on SOC_IMX25
+ depends on RTC_CLASS
+ help
+ Support for Freescale IMX DryIce RTC
+
+ This driver can also be built as a module, if so, the module
+ will be called "rtc-imxdi".
+
config RTC_DRV_OMAP
tristate "TI OMAP1"
depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
@@ -1087,4 +1076,15 @@ config RTC_DRV_LOONGSON1
This driver can also be built as a module. If so, the module
will be called rtc-ls1x.
+config RTC_DRV_MXC
+ tristate "Freescale MXC Real Time Clock"
+ depends on ARCH_MXC
+ depends on RTC_CLASS
+ help
+ If you say yes here you get support for the Freescale MXC
+ RTC module.
+
+ This driver can also be built as a module, if so, the module
+ will be called "rtc-mxc".
+
endif # RTC_CLASS
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 727ae7786e6..2973921c30d 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -61,7 +61,7 @@ obj-$(CONFIG_RTC_DRV_M41T94) += rtc-m41t94.o
obj-$(CONFIG_RTC_DRV_M48T35) += rtc-m48t35.o
obj-$(CONFIG_RTC_DRV_M48T59) += rtc-m48t59.o
obj-$(CONFIG_RTC_DRV_M48T86) += rtc-m48t86.o
-obj-$(CONFIG_RTC_MXC) += rtc-mxc.o
+obj-$(CONFIG_RTC_DRV_MXC) += rtc-mxc.o
obj-$(CONFIG_RTC_DRV_MAX6900) += rtc-max6900.o
obj-$(CONFIG_RTC_DRV_MAX8925) += rtc-max8925.o
obj-$(CONFIG_RTC_DRV_MAX8998) += rtc-max8998.o
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 7d5f56edb8e..4267789ca99 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -910,14 +910,17 @@ static inline int cmos_poweroff(struct device *dev)
static u32 rtc_handler(void *context)
{
+ struct device *dev = context;
+
+ pm_wakeup_event(dev, 0);
acpi_clear_event(ACPI_EVENT_RTC);
acpi_disable_event(ACPI_EVENT_RTC, 0);
return ACPI_INTERRUPT_HANDLED;
}
-static inline void rtc_wake_setup(void)
+static inline void rtc_wake_setup(struct device *dev)
{
- acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);
+ acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, dev);
/*
* After the RTC handler is installed, the Fixed_RTC event should
* be disabled. Only when the RTC alarm is set will it be enabled.
@@ -950,7 +953,7 @@ cmos_wake_setup(struct device *dev)
if (acpi_disabled)
return;
- rtc_wake_setup();
+ rtc_wake_setup(dev);
acpi_rtc_info.wake_on = rtc_wake_on;
acpi_rtc_info.wake_off = rtc_wake_off;
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index c293d0cdb10..836710ce750 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -17,8 +17,7 @@
#include <linux/string.h>
#include <linux/rtc.h>
#include <linux/bcd.h>
-
-
+#include <linux/rtc/ds1307.h>
/*
* We can't determine type by probing, but if we expect pre-Linux code
@@ -92,7 +91,8 @@ enum ds_type {
# define DS1337_BIT_A2I 0x02
# define DS1337_BIT_A1I 0x01
#define DS1339_REG_ALARM1_SECS 0x07
-#define DS1339_REG_TRICKLE 0x10
+
+#define DS13XX_TRICKLE_CHARGER_MAGIC 0xa0
#define RX8025_REG_CTRL1 0x0e
# define RX8025_BIT_2412 0x20
@@ -124,6 +124,7 @@ struct chip_desc {
unsigned alarm:1;
u16 nvram_offset;
u16 nvram_size;
+ u16 trickle_charger_reg;
};
static const struct chip_desc chips[last_ds_type] = {
@@ -140,6 +141,13 @@ static const struct chip_desc chips[last_ds_type] = {
},
[ds_1339] = {
.alarm = 1,
+ .trickle_charger_reg = 0x10,
+ },
+ [ds_1340] = {
+ .trickle_charger_reg = 0x08,
+ },
+ [ds_1388] = {
+ .trickle_charger_reg = 0x0a,
},
[ds_3231] = {
.alarm = 1,
@@ -619,6 +627,7 @@ static int __devinit ds1307_probe(struct i2c_client *client,
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
int want_irq = false;
unsigned char *buf;
+ struct ds1307_platform_data *pdata = client->dev.platform_data;
static const int bbsqi_bitpos[] = {
[ds_1337] = 0,
[ds_1339] = DS1339_BIT_BBSQI,
@@ -637,7 +646,10 @@ static int __devinit ds1307_probe(struct i2c_client *client,
ds1307->client = client;
ds1307->type = id->driver_data;
- ds1307->offset = 0;
+
+ if (pdata && pdata->trickle_charger_setup && chip->trickle_charger_reg)
+ i2c_smbus_write_byte_data(client, chip->trickle_charger_reg,
+ DS13XX_TRICKLE_CHARGER_MAGIC | pdata->trickle_charger_setup);
buf = ds1307->regs;
if (i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) {
diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index 14a42a1edc6..9602278ff98 100644
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -127,7 +127,7 @@ static const struct attribute_group ep93xx_rtc_sysfs_files = {
.attrs = ep93xx_rtc_attrs,
};
-static int __init ep93xx_rtc_probe(struct platform_device *pdev)
+static int __devinit ep93xx_rtc_probe(struct platform_device *pdev)
{
struct ep93xx_rtc *ep93xx_rtc;
struct resource *res;
@@ -174,7 +174,7 @@ exit:
return err;
}
-static int __exit ep93xx_rtc_remove(struct platform_device *pdev)
+static int __devexit ep93xx_rtc_remove(struct platform_device *pdev)
{
struct ep93xx_rtc *ep93xx_rtc = platform_get_drvdata(pdev);
@@ -186,31 +186,19 @@ static int __exit ep93xx_rtc_remove(struct platform_device *pdev)
return 0;
}
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:ep93xx-rtc");
-
static struct platform_driver ep93xx_rtc_driver = {
.driver = {
.name = "ep93xx-rtc",
.owner = THIS_MODULE,
},
- .remove = __exit_p(ep93xx_rtc_remove),
+ .probe = ep93xx_rtc_probe,
+ .remove = __devexit_p(ep93xx_rtc_remove),
};
-static int __init ep93xx_rtc_init(void)
-{
- return platform_driver_probe(&ep93xx_rtc_driver, ep93xx_rtc_probe);
-}
-
-static void __exit ep93xx_rtc_exit(void)
-{
- platform_driver_unregister(&ep93xx_rtc_driver);
-}
+module_platform_driver(ep93xx_rtc_driver);
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("EP93XX RTC driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
-
-module_init(ep93xx_rtc_init);
-module_exit(ep93xx_rtc_exit);
+MODULE_ALIAS("platform:ep93xx-rtc");
diff --git a/drivers/rtc/rtc-imxdi.c b/drivers/rtc/rtc-imxdi.c
index d93a9608b1f..891cd6c61d0 100644
--- a/drivers/rtc/rtc-imxdi.c
+++ b/drivers/rtc/rtc-imxdi.c
@@ -405,7 +405,7 @@ static int dryice_rtc_probe(struct platform_device *pdev)
imxdi->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(imxdi->clk))
return PTR_ERR(imxdi->clk);
- clk_enable(imxdi->clk);
+ clk_prepare_enable(imxdi->clk);
/*
* Initialize dryice hardware
@@ -470,7 +470,7 @@ static int dryice_rtc_probe(struct platform_device *pdev)
return 0;
err:
- clk_disable(imxdi->clk);
+ clk_disable_unprepare(imxdi->clk);
clk_put(imxdi->clk);
return rc;
@@ -487,7 +487,7 @@ static int __devexit dryice_rtc_remove(struct platform_device *pdev)
rtc_device_unregister(imxdi->rtc);
- clk_disable(imxdi->clk);
+ clk_disable_unprepare(imxdi->clk);
clk_put(imxdi->clk);
return 0;
diff --git a/drivers/rtc/rtc-lpc32xx.c b/drivers/rtc/rtc-lpc32xx.c
index 63c72189c64..d5218553741 100644
--- a/drivers/rtc/rtc-lpc32xx.c
+++ b/drivers/rtc/rtc-lpc32xx.c
@@ -19,6 +19,7 @@
#include <linux/rtc.h>
#include <linux/slab.h>
#include <linux/io.h>
+#include <linux/of.h>
/*
* Clock and Power control register offsets
@@ -386,13 +387,22 @@ static const struct dev_pm_ops lpc32xx_rtc_pm_ops = {
#define LPC32XX_RTC_PM_OPS NULL
#endif
+#ifdef CONFIG_OF
+static const struct of_device_id lpc32xx_rtc_match[] = {
+ { .compatible = "nxp,lpc3220-rtc" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, lpc32xx_rtc_match);
+#endif
+
static struct platform_driver lpc32xx_rtc_driver = {
.probe = lpc32xx_rtc_probe,
.remove = __devexit_p(lpc32xx_rtc_remove),
.driver = {
.name = RTC_NAME,
.owner = THIS_MODULE,
- .pm = LPC32XX_RTC_PM_OPS
+ .pm = LPC32XX_RTC_PM_OPS,
+ .of_match_table = of_match_ptr(lpc32xx_rtc_match),
},
};
diff --git a/drivers/rtc/rtc-m41t93.c b/drivers/rtc/rtc-m41t93.c
index 10f1c29436e..efab3d48cb1 100644
--- a/drivers/rtc/rtc-m41t93.c
+++ b/drivers/rtc/rtc-m41t93.c
@@ -48,6 +48,7 @@ static inline int m41t93_set_reg(struct spi_device *spi, u8 addr, u8 data)
static int m41t93_set_time(struct device *dev, struct rtc_time *tm)
{
struct spi_device *spi = to_spi_device(dev);
+ int tmp;
u8 buf[9] = {0x80}; /* write cmd + 8 data bytes */
u8 * const data = &buf[1]; /* ptr to first data byte */
@@ -62,6 +63,30 @@ static int m41t93_set_time(struct device *dev, struct rtc_time *tm)
return -EINVAL;
}
+ tmp = spi_w8r8(spi, M41T93_REG_FLAGS);
+ if (tmp < 0)
+ return tmp;
+
+ if (tmp & M41T93_FLAG_OF) {
+ dev_warn(&spi->dev, "OF bit is set, resetting.\n");
+ m41t93_set_reg(spi, M41T93_REG_FLAGS, tmp & ~M41T93_FLAG_OF);
+
+ tmp = spi_w8r8(spi, M41T93_REG_FLAGS);
+ if (tmp < 0) {
+ return tmp;
+ } else if (tmp & M41T93_FLAG_OF) {
+ /* OF cannot be immediately reset: oscillator has to be
+ * restarted. */
+ u8 reset_osc = buf[M41T93_REG_ST_SEC] | M41T93_FLAG_ST;
+
+ dev_warn(&spi->dev,
+ "OF bit is still set, kickstarting clock.\n");
+ m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);
+ reset_osc &= ~M41T93_FLAG_ST;
+ m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);
+ }
+ }
+
data[M41T93_REG_SSEC] = 0;
data[M41T93_REG_ST_SEC] = bin2bcd(tm->tm_sec);
data[M41T93_REG_MIN] = bin2bcd(tm->tm_min);
@@ -89,10 +114,7 @@ static int m41t93_get_time(struct device *dev, struct rtc_time *tm)
1. halt bit (HT) is set: the clock is running but update of readout
registers has been disabled due to power failure. This is normal
case after poweron. Time is valid after resetting HT bit.
- 2. oscillator fail bit (OF) is set. Oscillator has be stopped and
- time is invalid:
- a) OF can be immeditely reset.
- b) OF cannot be immediately reset: oscillator has to be restarted.
+ 2. oscillator fail bit (OF) is set: time is invalid.
*/
tmp = spi_w8r8(spi, M41T93_REG_ALM_HOUR_HT);
if (tmp < 0)
@@ -110,21 +132,7 @@ static int m41t93_get_time(struct device *dev, struct rtc_time *tm)
if (tmp & M41T93_FLAG_OF) {
ret = -EINVAL;
- dev_warn(&spi->dev, "OF bit is set, resetting.\n");
- m41t93_set_reg(spi, M41T93_REG_FLAGS, tmp & ~M41T93_FLAG_OF);
-
- tmp = spi_w8r8(spi, M41T93_REG_FLAGS);
- if (tmp < 0)
- return tmp;
- else if (tmp & M41T93_FLAG_OF) {
- u8 reset_osc = buf[M41T93_REG_ST_SEC] | M41T93_FLAG_ST;
-
- dev_warn(&spi->dev,
- "OF bit is still set, kickstarting clock.\n");
- m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);
- reset_osc &= ~M41T93_FLAG_ST;
- m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);
- }
+ dev_warn(&spi->dev, "OF bit is set, write time to restart.\n");
}
if (tmp & M41T93_FLAG_BL)
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index bc0677de199..97a3284bb7c 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -64,6 +64,7 @@ struct pcf8563 {
* 1970...2069.
*/
int c_polarity; /* 0: MO_C=1 means 19xx, otherwise MO_C=1 means 20xx */
+ int voltage_low; /* incicates if a low_voltage was detected */
};
/*
@@ -86,9 +87,11 @@ static int pcf8563_get_datetime(struct i2c_client *client, struct rtc_time *tm)
return -EIO;
}
- if (buf[PCF8563_REG_SC] & PCF8563_SC_LV)
+ if (buf[PCF8563_REG_SC] & PCF8563_SC_LV) {
+ pcf8563->voltage_low = 1;
dev_info(&client->dev,
"low voltage detected, date/time is not reliable.\n");
+ }
dev_dbg(&client->dev,
"%s: raw data is st1=%02x, st2=%02x, sec=%02x, min=%02x, hr=%02x, "
@@ -173,6 +176,44 @@ static int pcf8563_set_datetime(struct i2c_client *client, struct rtc_time *tm)
return 0;
}
+#ifdef CONFIG_RTC_INTF_DEV
+static int pcf8563_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+ struct pcf8563 *pcf8563 = i2c_get_clientdata(to_i2c_client(dev));
+ struct rtc_time tm;
+
+ switch (cmd) {
+ case RTC_VL_READ:
+ if (pcf8563->voltage_low)
+ dev_info(dev, "low voltage detected, date/time is not reliable.\n");
+
+ if (copy_to_user((void __user *)arg, &pcf8563->voltage_low,
+ sizeof(int)))
+ return -EFAULT;
+ return 0;
+ case RTC_VL_CLR:
+ /*
+ * Clear the VL bit in the seconds register in case
+ * the time has not been set already (which would
+ * have cleared it). This does not really matter
+ * because of the cached voltage_low value but do it
+ * anyway for consistency.
+ */
+ if (pcf8563_get_datetime(to_i2c_client(dev), &tm))
+ pcf8563_set_datetime(to_i2c_client(dev), &tm);
+
+ /* Clear the cached value. */
+ pcf8563->voltage_low = 0;
+
+ return 0;
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+#else
+#define pcf8563_rtc_ioctl NULL
+#endif
+
static int pcf8563_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
return pcf8563_get_datetime(to_i2c_client(dev), tm);
@@ -184,6 +225,7 @@ static int pcf8563_rtc_set_time(struct device *dev, struct rtc_time *tm)
}
static const struct rtc_class_ops pcf8563_rtc_ops = {
+ .ioctl = pcf8563_rtc_ioctl,
.read_time = pcf8563_rtc_read_time,
.set_time = pcf8563_rtc_set_time,
};
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index f027c063fb2..cc0533994f6 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -220,17 +220,9 @@ static irqreturn_t pl031_interrupt(int irq, void *dev_id)
unsigned long events = 0;
rtcmis = readl(ldata->base + RTC_MIS);
- if (rtcmis) {
- writel(rtcmis, ldata->base + RTC_ICR);
-
- if (rtcmis & RTC_BIT_AI)
- events |= (RTC_AF | RTC_IRQF);
-
- /* Timer interrupt is only available in ST variants */
- if ((rtcmis & RTC_BIT_PI) &&
- (ldata->hw_designer == AMBA_VENDOR_ST))
- events |= (RTC_PF | RTC_IRQF);
-
+ if (rtcmis & RTC_BIT_AI) {
+ writel(RTC_BIT_AI, ldata->base + RTC_ICR);
+ events |= (RTC_AF | RTC_IRQF);
rtc_update_irq(ldata->rtc, 1, events);
return IRQ_HANDLED;
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 3f3a2975236..7e6af0b22f1 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -670,6 +670,7 @@ static int s3c_rtc_resume(struct platform_device *pdev)
#define s3c_rtc_resume NULL
#endif
+#ifdef CONFIG_OF
static struct s3c_rtc_drv_data s3c_rtc_drv_data_array[] = {
[TYPE_S3C2410] = { TYPE_S3C2410 },
[TYPE_S3C2416] = { TYPE_S3C2416 },
@@ -677,7 +678,6 @@ static struct s3c_rtc_drv_data s3c_rtc_drv_data_array[] = {
[TYPE_S3C64XX] = { TYPE_S3C64XX },
};
-#ifdef CONFIG_OF
static const struct of_device_id s3c_rtc_dt_match[] = {
{
.compatible = "samsung,s3c2410-rtc",
diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c
index e38da0dc418..1f76320e545 100644
--- a/drivers/rtc/rtc-spear.c
+++ b/drivers/rtc/rtc-spear.c
@@ -16,6 +16,7 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/module.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/rtc.h>
#include <linux/slab.h>
@@ -519,6 +520,14 @@ static void spear_rtc_shutdown(struct platform_device *pdev)
clk_disable(config->clk);
}
+#ifdef CONFIG_OF
+static const struct of_device_id spear_rtc_id_table[] = {
+ { .compatible = "st,spear600-rtc" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, spear_rtc_id_table);
+#endif
+
static struct platform_driver spear_rtc_driver = {
.probe = spear_rtc_probe,
.remove = __devexit_p(spear_rtc_remove),
@@ -527,6 +536,7 @@ static struct platform_driver spear_rtc_driver = {
.shutdown = spear_rtc_shutdown,
.driver = {
.name = "rtc-spear",
+ .of_match_table = of_match_ptr(spear_rtc_id_table),
},
};
diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index 75259fe3860..c006025cecc 100644
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -309,7 +309,8 @@ static int __devinit tegra_rtc_probe(struct platform_device *pdev)
struct resource *res;
int ret;
- info = kzalloc(sizeof(struct tegra_rtc_info), GFP_KERNEL);
+ info = devm_kzalloc(&pdev->dev, sizeof(struct tegra_rtc_info),
+ GFP_KERNEL);
if (!info)
return -ENOMEM;
@@ -317,29 +318,18 @@ static int __devinit tegra_rtc_probe(struct platform_device *pdev)
if (!res) {
dev_err(&pdev->dev,
"Unable to allocate resources for device.\n");
- ret = -EBUSY;
- goto err_free_info;
+ return -EBUSY;
}
- if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
- dev_err(&pdev->dev,
- "Unable to request mem region for device.\n");
- ret = -EBUSY;
- goto err_free_info;
+ info->rtc_base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!info->rtc_base) {
+ dev_err(&pdev->dev, "Unable to request mem region and grab IOs for device.\n");
+ return -EBUSY;
}
info->tegra_rtc_irq = platform_get_irq(pdev, 0);
- if (info->tegra_rtc_irq <= 0) {
- ret = -EBUSY;
- goto err_release_mem_region;
- }
-
- info->rtc_base = ioremap_nocache(res->start, resource_size(res));
- if (!info->rtc_base) {
- dev_err(&pdev->dev, "Unable to grab IOs for device.\n");
- ret = -EBUSY;
- goto err_release_mem_region;
- }
+ if (info->tegra_rtc_irq <= 0)
+ return -EBUSY;
/* set context info. */
info->pdev = pdev;
@@ -362,11 +352,12 @@ static int __devinit tegra_rtc_probe(struct platform_device *pdev)
dev_err(&pdev->dev,
"Unable to register device (err=%d).\n",
ret);
- goto err_iounmap;
+ return ret;
}
- ret = request_irq(info->tegra_rtc_irq, tegra_rtc_irq_handler,
- IRQF_TRIGGER_HIGH, "rtc alarm", &pdev->dev);
+ ret = devm_request_irq(&pdev->dev, info->tegra_rtc_irq,
+ tegra_rtc_irq_handler, IRQF_TRIGGER_HIGH,
+ "rtc alarm", &pdev->dev);
if (ret) {
dev_err(&pdev->dev,
"Unable to request interrupt for device (err=%d).\n",
@@ -380,12 +371,6 @@ static int __devinit tegra_rtc_probe(struct platform_device *pdev)
err_dev_unreg:
rtc_device_unregister(info->rtc_dev);
-err_iounmap:
- iounmap(info->rtc_base);
-err_release_mem_region:
- release_mem_region(res->start, resource_size(res));
-err_free_info:
- kfree(info);
return ret;
}
@@ -393,17 +378,8 @@ err_free_info:
static int __devexit tegra_rtc_remove(struct platform_device *pdev)
{
struct tegra_rtc_info *info = platform_get_drvdata(pdev);
- struct resource *res;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -EBUSY;
- free_irq(info->tegra_rtc_irq, &pdev->dev);
rtc_device_unregister(info->rtc_dev);
- iounmap(info->rtc_base);
- release_mem_region(res->start, resource_size(res));
- kfree(info);
platform_set_drvdata(pdev, NULL);
diff --git a/drivers/rtc/rtc-wm831x.c b/drivers/rtc/rtc-wm831x.c
index 3b6e6a67e76..59c6245e042 100644
--- a/drivers/rtc/rtc-wm831x.c
+++ b/drivers/rtc/rtc-wm831x.c
@@ -396,7 +396,7 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_rtc *wm831x_rtc;
- int alm_irq = platform_get_irq_byname(pdev, "ALM");
+ int alm_irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "ALM"));
int ret = 0;
wm831x_rtc = devm_kzalloc(&pdev->dev, sizeof(*wm831x_rtc), GFP_KERNEL);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-10-31 19:21:17 +0000