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-rw-r--r--drivers/rtc/Kconfig12
-rw-r--r--drivers/rtc/Makefile1
-rw-r--r--drivers/rtc/rtc-at32ap700x.c2
-rw-r--r--drivers/rtc/rtc-at91rm9200.c1
-rw-r--r--drivers/rtc/rtc-at91sam9.c6
-rw-r--r--drivers/rtc/rtc-bfin.c1
-rw-r--r--drivers/rtc/rtc-cmos.c10
-rw-r--r--drivers/rtc/rtc-ds1216.c1
-rw-r--r--drivers/rtc/rtc-ds1511.c3
-rw-r--r--drivers/rtc/rtc-ds1553.c3
-rw-r--r--drivers/rtc/rtc-ds1742.c1
-rw-r--r--drivers/rtc/rtc-ep93xx.c3
-rw-r--r--drivers/rtc/rtc-m48t59.c3
-rw-r--r--drivers/rtc/rtc-m48t86.c1
-rw-r--r--drivers/rtc/rtc-omap.c2
-rw-r--r--drivers/rtc/rtc-rs5c313.c1
-rw-r--r--drivers/rtc/rtc-s35390a.c316
-rw-r--r--drivers/rtc/rtc-s3c.c1
-rw-r--r--drivers/rtc/rtc-sa1100.c1
-rw-r--r--drivers/rtc/rtc-sh.c297
-rw-r--r--drivers/rtc/rtc-stk17ta8.c3
-rw-r--r--drivers/rtc/rtc-v3020.c1
-rw-r--r--drivers/rtc/rtc-vr41xx.c3
23 files changed, 557 insertions, 116 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 6402d699072b..02a4c8cf2b2d 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -16,7 +16,7 @@ menuconfig RTC_CLASS
probably want to enable one or more of the interfaces below.
This driver can also be built as a module. If so, the module
- will be called rtc-class.
+ will be called rtc-core.
if RTC_CLASS
@@ -250,6 +250,16 @@ config RTC_DRV_TWL92330
platforms. The support is integrated with the rest of
the Menelaus driver; it's not separate module.
+config RTC_DRV_S35390A
+ tristate "Seiko Instruments S-35390A"
+ select BITREVERSE
+ help
+ If you say yes here you will get support for the Seiko
+ Instruments S-35390A.
+
+ This driver can also be built as a module. If so the module
+ will be called rtc-s35390a.
+
endif # I2C
comment "SPI RTC drivers"
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index ec703f34ab86..872f1218ff9f 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -45,6 +45,7 @@ obj-$(CONFIG_RTC_DRV_R9701) += rtc-r9701.o
obj-$(CONFIG_RTC_DRV_RS5C313) += rtc-rs5c313.o
obj-$(CONFIG_RTC_DRV_RS5C348) += rtc-rs5c348.o
obj-$(CONFIG_RTC_DRV_RS5C372) += rtc-rs5c372.o
+obj-$(CONFIG_RTC_DRV_S35390A) += rtc-s35390a.o
obj-$(CONFIG_RTC_DRV_S3C) += rtc-s3c.o
obj-$(CONFIG_RTC_DRV_SA1100) += rtc-sa1100.o
obj-$(CONFIG_RTC_DRV_SH) += rtc-sh.o
diff --git a/drivers/rtc/rtc-at32ap700x.c b/drivers/rtc/rtc-at32ap700x.c
index d3b9b14267ab..42244f14b41c 100644
--- a/drivers/rtc/rtc-at32ap700x.c
+++ b/drivers/rtc/rtc-at32ap700x.c
@@ -290,7 +290,7 @@ static int __exit at32_rtc_remove(struct platform_device *pdev)
return 0;
}
-MODULE_ALIAS("at32ap700x_rtc");
+MODULE_ALIAS("platform:at32ap700x_rtc");
static struct platform_driver at32_rtc_driver = {
.remove = __exit_p(at32_rtc_remove),
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 33795e5a5595..52abffc86bcd 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -407,3 +407,4 @@ module_exit(at91_rtc_exit);
MODULE_AUTHOR("Rick Bronson");
MODULE_DESCRIPTION("RTC driver for Atmel AT91RM9200");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:at91_rtc");
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index bbf10ecf416c..56728a2a3385 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -274,7 +274,7 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *_rtc)
* SR clears it, so we must only read it in this irq handler!
*/
mr = rtt_readl(rtc, MR) & (AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN);
- sr = rtt_readl(rtc, SR) & mr;
+ sr = rtt_readl(rtc, SR) & (mr >> 16);
if (!sr)
return IRQ_NONE;
@@ -321,6 +321,10 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
if (!rtc)
return -ENOMEM;
+ /* platform setup code should have handled this; sigh */
+ if (!device_can_wakeup(&pdev->dev))
+ device_init_wakeup(&pdev->dev, 1);
+
platform_set_drvdata(pdev, rtc);
rtc->rtt = (void __force __iomem *) (AT91_VA_BASE_SYS - AT91_BASE_SYS);
rtc->rtt += r->start;
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index d90ba860d216..4f28045d9ef2 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -470,3 +470,4 @@ module_exit(bfin_rtc_exit);
MODULE_DESCRIPTION("Blackfin On-Chip Real Time Clock Driver");
MODULE_AUTHOR("Mike Frysinger <vapier@gentoo.org>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:rtc-bfin");
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index e059f94c79eb..dcdc142a3441 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -198,9 +198,8 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t)
/* Writing 0xff means "don't care" or "match all". */
- mon = t->time.tm_mon;
- mon = (mon < 12) ? BIN2BCD(mon) : 0xff;
- mon++;
+ mon = t->time.tm_mon + 1;
+ mon = (mon <= 12) ? BIN2BCD(mon) : 0xff;
mday = t->time.tm_mday;
mday = (mday >= 1 && mday <= 31) ? BIN2BCD(mday) : 0xff;
@@ -388,6 +387,7 @@ static int cmos_procfs(struct device *dev, struct seq_file *seq)
return seq_printf(seq,
"periodic_IRQ\t: %s\n"
"update_IRQ\t: %s\n"
+ "HPET_emulated\t: %s\n"
// "square_wave\t: %s\n"
// "BCD\t\t: %s\n"
"DST_enable\t: %s\n"
@@ -395,6 +395,7 @@ static int cmos_procfs(struct device *dev, struct seq_file *seq)
"batt_status\t: %s\n",
(rtc_control & RTC_PIE) ? "yes" : "no",
(rtc_control & RTC_UIE) ? "yes" : "no",
+ is_hpet_enabled() ? "yes" : "no",
// (rtc_control & RTC_SQWE) ? "yes" : "no",
// (rtc_control & RTC_DM_BINARY) ? "no" : "yes",
(rtc_control & RTC_DST_EN) ? "yes" : "no",
@@ -941,6 +942,9 @@ static void cmos_platform_shutdown(struct platform_device *pdev)
cmos_do_shutdown();
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:rtc_cmos");
+
static struct platform_driver cmos_platform_driver = {
.remove = __exit_p(cmos_platform_remove),
.shutdown = cmos_platform_shutdown,
diff --git a/drivers/rtc/rtc-ds1216.c b/drivers/rtc/rtc-ds1216.c
index 83efb88f8f23..0b17770b032b 100644
--- a/drivers/rtc/rtc-ds1216.c
+++ b/drivers/rtc/rtc-ds1216.c
@@ -221,6 +221,7 @@ MODULE_AUTHOR("Thomas Bogendoerfer <tsbogend@alpha.franken.de>");
MODULE_DESCRIPTION("DS1216 RTC driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
+MODULE_ALIAS("platform:rtc-ds1216");
module_init(ds1216_rtc_init);
module_exit(ds1216_rtc_exit);
diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c
index d74b8086fa31..d08912f18ddd 100644
--- a/drivers/rtc/rtc-ds1511.c
+++ b/drivers/rtc/rtc-ds1511.c
@@ -626,6 +626,9 @@ ds1511_rtc_remove(struct platform_device *pdev)
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:ds1511");
+
static struct platform_driver ds1511_rtc_driver = {
.probe = ds1511_rtc_probe,
.remove = __devexit_p(ds1511_rtc_remove),
diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c
index d9e848dcd450..a19f11415540 100644
--- a/drivers/rtc/rtc-ds1553.c
+++ b/drivers/rtc/rtc-ds1553.c
@@ -391,6 +391,9 @@ static int __devexit ds1553_rtc_remove(struct platform_device *pdev)
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:rtc-ds1553");
+
static struct platform_driver ds1553_rtc_driver = {
.probe = ds1553_rtc_probe,
.remove = __devexit_p(ds1553_rtc_remove),
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index 2e73f0b183b2..24d35ede2dbf 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -276,3 +276,4 @@ MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
MODULE_DESCRIPTION("Dallas DS1742 RTC driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
+MODULE_ALIAS("platform:rtc-ds1742");
diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index ef4f147f3c0c..1e99325270df 100644
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -132,6 +132,9 @@ static int __devexit ep93xx_rtc_remove(struct platform_device *dev)
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:ep93xx-rtc");
+
static struct platform_driver ep93xx_rtc_platform_driver = {
.driver = {
.name = "ep93xx-rtc",
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index cd0bbc0e8038..013e6c103b9c 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -465,6 +465,9 @@ static int __devexit m48t59_rtc_remove(struct platform_device *pdev)
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:rtc-m48t59");
+
static struct platform_driver m48t59_rtc_driver = {
.driver = {
.name = "rtc-m48t59",
diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c
index 8ff4a1221f59..3f7f99a5d96a 100644
--- a/drivers/rtc/rtc-m48t86.c
+++ b/drivers/rtc/rtc-m48t86.c
@@ -199,6 +199,7 @@ MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("M48T86 RTC driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
+MODULE_ALIAS("platform:rtc-m48t86");
module_init(m48t86_rtc_init);
module_exit(m48t86_rtc_exit);
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index a2f84f169588..58f81c774943 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -497,7 +497,7 @@ static void omap_rtc_shutdown(struct platform_device *pdev)
rtc_write(0, OMAP_RTC_INTERRUPTS_REG);
}
-MODULE_ALIAS("omap_rtc");
+MODULE_ALIAS("platform:omap_rtc");
static struct platform_driver omap_rtc_driver = {
.probe = omap_rtc_probe,
.remove = __devexit_p(omap_rtc_remove),
diff --git a/drivers/rtc/rtc-rs5c313.c b/drivers/rtc/rtc-rs5c313.c
index 66eb133bf5fd..664e89a817ed 100644
--- a/drivers/rtc/rtc-rs5c313.c
+++ b/drivers/rtc/rtc-rs5c313.c
@@ -421,3 +421,4 @@ MODULE_VERSION(DRV_VERSION);
MODULE_AUTHOR("kogiidena , Nobuhiro Iwamatsu <iwamatsu@nigauri.org>");
MODULE_DESCRIPTION("Ricoh RS5C313 RTC device driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
new file mode 100644
index 000000000000..e8abc90c32c5
--- /dev/null
+++ b/drivers/rtc/rtc-s35390a.c
@@ -0,0 +1,316 @@
+/*
+ * Seiko Instruments S-35390A RTC Driver
+ *
+ * Copyright (c) 2007 Byron Bradley
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/i2c.h>
+#include <linux/bitrev.h>
+#include <linux/bcd.h>
+#include <linux/slab.h>
+
+#define S35390A_CMD_STATUS1 0
+#define S35390A_CMD_STATUS2 1
+#define S35390A_CMD_TIME1 2
+
+#define S35390A_BYTE_YEAR 0
+#define S35390A_BYTE_MONTH 1
+#define S35390A_BYTE_DAY 2
+#define S35390A_BYTE_WDAY 3
+#define S35390A_BYTE_HOURS 4
+#define S35390A_BYTE_MINS 5
+#define S35390A_BYTE_SECS 6
+
+#define S35390A_FLAG_POC 0x01
+#define S35390A_FLAG_BLD 0x02
+#define S35390A_FLAG_24H 0x40
+#define S35390A_FLAG_RESET 0x80
+#define S35390A_FLAG_TEST 0x01
+
+struct s35390a {
+ struct i2c_client *client[8];
+ struct rtc_device *rtc;
+ int twentyfourhour;
+};
+
+static int s35390a_set_reg(struct s35390a *s35390a, int reg, char *buf, int len)
+{
+ struct i2c_client *client = s35390a->client[reg];
+ struct i2c_msg msg[] = {
+ { client->addr, 0, len, buf },
+ };
+
+ if ((i2c_transfer(client->adapter, msg, 1)) != 1)
+ return -EIO;
+
+ return 0;
+}
+
+static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len)
+{
+ struct i2c_client *client = s35390a->client[reg];
+ struct i2c_msg msg[] = {
+ { client->addr, I2C_M_RD, len, buf },
+ };
+
+ if ((i2c_transfer(client->adapter, msg, 1)) != 1)
+ return -EIO;
+
+ return 0;
+}
+
+static int s35390a_reset(struct s35390a *s35390a)
+{
+ char buf[1];
+
+ if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf)) < 0)
+ return -EIO;
+
+ if (!(buf[0] & (S35390A_FLAG_POC | S35390A_FLAG_BLD)))
+ return 0;
+
+ buf[0] |= (S35390A_FLAG_RESET | S35390A_FLAG_24H);
+ buf[0] &= 0xf0;
+ return s35390a_set_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf));
+}
+
+static int s35390a_disable_test_mode(struct s35390a *s35390a)
+{
+ char buf[1];
+
+ if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf)) < 0)
+ return -EIO;
+
+ if (!(buf[0] & S35390A_FLAG_TEST))
+ return 0;
+
+ buf[0] &= ~S35390A_FLAG_TEST;
+ return s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf));
+}
+
+static char s35390a_hr2reg(struct s35390a *s35390a, int hour)
+{
+ if (s35390a->twentyfourhour)
+ return BIN2BCD(hour);
+
+ if (hour < 12)
+ return BIN2BCD(hour);
+
+ return 0x40 | BIN2BCD(hour - 12);
+}
+
+static int s35390a_reg2hr(struct s35390a *s35390a, char reg)
+{
+ unsigned hour;
+
+ if (s35390a->twentyfourhour)
+ return BCD2BIN(reg & 0x3f);
+
+ hour = BCD2BIN(reg & 0x3f);
+ if (reg & 0x40)
+ hour += 12;
+
+ return hour;
+}
+
+static int s35390a_set_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+ struct s35390a *s35390a = i2c_get_clientdata(client);
+ int i, err;
+ char buf[7];
+
+ dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d mday=%d, "
+ "mon=%d, year=%d, wday=%d\n", __func__, tm->tm_sec,
+ tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon, tm->tm_year,
+ tm->tm_wday);
+
+ buf[S35390A_BYTE_YEAR] = BIN2BCD(tm->tm_year - 100);
+ buf[S35390A_BYTE_MONTH] = BIN2BCD(tm->tm_mon + 1);
+ buf[S35390A_BYTE_DAY] = BIN2BCD(tm->tm_mday);
+ buf[S35390A_BYTE_WDAY] = BIN2BCD(tm->tm_wday);
+ buf[S35390A_BYTE_HOURS] = s35390a_hr2reg(s35390a, tm->tm_hour);
+ buf[S35390A_BYTE_MINS] = BIN2BCD(tm->tm_min);
+ buf[S35390A_BYTE_SECS] = BIN2BCD(tm->tm_sec);
+
+ /* This chip expects the bits of each byte to be in reverse order */
+ for (i = 0; i < 7; ++i)
+ buf[i] = bitrev8(buf[i]);
+
+ err = s35390a_set_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf));
+
+ return err;
+}
+
+static int s35390a_get_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+ struct s35390a *s35390a = i2c_get_clientdata(client);
+ char buf[7];
+ int i, err;
+
+ err = s35390a_get_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf));
+ if (err < 0)
+ return err;
+
+ /* This chip returns the bits of each byte in reverse order */
+ for (i = 0; i < 7; ++i)
+ buf[i] = bitrev8(buf[i]);
+
+ tm->tm_sec = BCD2BIN(buf[S35390A_BYTE_SECS]);
+ tm->tm_min = BCD2BIN(buf[S35390A_BYTE_MINS]);
+ tm->tm_hour = s35390a_reg2hr(s35390a, buf[S35390A_BYTE_HOURS]);
+ tm->tm_wday = BCD2BIN(buf[S35390A_BYTE_WDAY]);
+ tm->tm_mday = BCD2BIN(buf[S35390A_BYTE_DAY]);
+ tm->tm_mon = BCD2BIN(buf[S35390A_BYTE_MONTH]) - 1;
+ tm->tm_year = BCD2BIN(buf[S35390A_BYTE_YEAR]) + 100;
+
+ dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, mday=%d, "
+ "mon=%d, year=%d, wday=%d\n", __func__, tm->tm_sec,
+ tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon, tm->tm_year,
+ tm->tm_wday);
+
+ return rtc_valid_tm(tm);
+}
+
+static int s35390a_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ return s35390a_get_datetime(to_i2c_client(dev), tm);
+}
+
+static int s35390a_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ return s35390a_set_datetime(to_i2c_client(dev), tm);
+}
+
+static const struct rtc_class_ops s35390a_rtc_ops = {
+ .read_time = s35390a_rtc_read_time,
+ .set_time = s35390a_rtc_set_time,
+};
+
+static struct i2c_driver s35390a_driver;
+
+static int s35390a_probe(struct i2c_client *client)
+{
+ int err;
+ unsigned int i;
+ struct s35390a *s35390a;
+ struct rtc_time tm;
+ char buf[1];
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ err = -ENODEV;
+ goto exit;
+ }
+
+ s35390a = kzalloc(sizeof(struct s35390a), GFP_KERNEL);
+ if (!s35390a) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ s35390a->client[0] = client;
+ i2c_set_clientdata(client, s35390a);
+
+ /* This chip uses multiple addresses, use dummy devices for them */
+ for (i = 1; i < 8; ++i) {
+ s35390a->client[i] = i2c_new_dummy(client->adapter,
+ client->addr + i, "rtc-s35390a");
+ if (!s35390a->client[i]) {
+ dev_err(&client->dev, "Address %02x unavailable\n",
+ client->addr + i);
+ err = -EBUSY;
+ goto exit_dummy;
+ }
+ }
+
+ err = s35390a_reset(s35390a);
+ if (err < 0) {
+ dev_err(&client->dev, "error resetting chip\n");
+ goto exit_dummy;
+ }
+
+ err = s35390a_disable_test_mode(s35390a);
+ if (err < 0) {
+ dev_err(&client->dev, "error disabling test mode\n");
+ goto exit_dummy;
+ }
+
+ err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf));
+ if (err < 0) {
+ dev_err(&client->dev, "error checking 12/24 hour mode\n");
+ goto exit_dummy;
+ }
+ if (buf[0] & S35390A_FLAG_24H)
+ s35390a->twentyfourhour = 1;
+ else
+ s35390a->twentyfourhour = 0;
+
+ if (s35390a_get_datetime(client, &tm) < 0)
+ dev_warn(&client->dev, "clock needs to be set\n");
+
+ s35390a->rtc = rtc_device_register(s35390a_driver.driver.name,
+ &client->dev, &s35390a_rtc_ops, THIS_MODULE);
+
+ if (IS_ERR(s35390a->rtc)) {
+ err = PTR_ERR(s35390a->rtc);
+ goto exit_dummy;
+ }
+ return 0;
+
+exit_dummy:
+ for (i = 1; i < 8; ++i)
+ if (s35390a->client[i])
+ i2c_unregister_device(s35390a->client[i]);
+ kfree(s35390a);
+ i2c_set_clientdata(client, NULL);
+
+exit:
+ return err;
+}
+
+static int s35390a_remove(struct i2c_client *client)
+{
+ unsigned int i;
+
+ struct s35390a *s35390a = i2c_get_clientdata(client);
+ for (i = 1; i < 8; ++i)
+ if (s35390a->client[i])
+ i2c_unregister_device(s35390a->client[i]);
+
+ rtc_device_unregister(s35390a->rtc);
+ kfree(s35390a);
+ i2c_set_clientdata(client, NULL);
+
+ return 0;
+}
+
+static struct i2c_driver s35390a_driver = {
+ .driver = {
+ .name = "rtc-s35390a",
+ },
+ .probe = s35390a_probe,
+ .remove = s35390a_remove,
+};
+
+static int __init s35390a_rtc_init(void)
+{
+ return i2c_add_driver(&s35390a_driver);
+}
+
+static void __exit s35390a_rtc_exit(void)
+{
+ i2c_del_driver(&s35390a_driver);
+}
+
+MODULE_AUTHOR("Byron Bradley <byron.bbradley@gmail.com>");
+MODULE_DESCRIPTION("S35390A RTC driver");
+MODULE_LICENSE("GPL");
+
+module_init(s35390a_rtc_init);
+module_exit(s35390a_rtc_exit);
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 86766f1f2496..9f4d5129a496 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -592,3 +592,4 @@ module_exit(s3c_rtc_exit);
MODULE_DESCRIPTION("Samsung S3C RTC Driver");
MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s3c2410-rtc");
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index ee253cc45de1..82f62d25f921 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -399,3 +399,4 @@ module_exit(sa1100_rtc_exit);
MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
MODULE_DESCRIPTION("SA11x0/PXA2xx Realtime Clock Driver (RTC)");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:sa1100-rtc");
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index c1d6a1880ccf..c594b34c6767 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -1,8 +1,9 @@
/*
* SuperH On-Chip RTC Support
*
- * Copyright (C) 2006, 2007 Paul Mundt
+ * Copyright (C) 2006, 2007, 2008 Paul Mundt
* Copyright (C) 2006 Jamie Lenehan
+ * Copyright (C) 2008 Angelo Castello
*
* Based on the old arch/sh/kernel/cpu/rtc.c by:
*
@@ -26,7 +27,7 @@
#include <asm/rtc.h>
#define DRV_NAME "sh-rtc"
-#define DRV_VERSION "0.1.6"
+#define DRV_VERSION "0.2.0"
#define RTC_REG(r) ((r) * rtc_reg_size)
@@ -63,6 +64,13 @@
/* ALARM Bits - or with BCD encoded value */
#define AR_ENB 0x80 /* Enable for alarm cmp */
+/* Period Bits */
+#define PF_HP 0x100 /* Enable Half Period to support 8,32,128Hz */
+#define PF_COUNT 0x200 /* Half periodic counter */
+#define PF_OXS 0x400 /* Periodic One x Second */
+#define PF_KOU 0x800 /* Kernel or User periodic request 1=kernel */
+#define PF_MASK 0xf00
+
/* RCR1 Bits */
#define RCR1_CF 0x80 /* Carry Flag */
#define RCR1_CIE 0x10 /* Carry Interrupt Enable */
@@ -84,33 +92,24 @@ struct sh_rtc {
unsigned int alarm_irq, periodic_irq, carry_irq;
struct rtc_device *rtc_dev;
spinlock_t lock;
- int rearm_aie;
unsigned long capabilities; /* See asm-sh/rtc.h for cap bits */
+ unsigned short periodic_freq;
};
static irqreturn_t sh_rtc_interrupt(int irq, void *dev_id)
{
- struct platform_device *pdev = to_platform_device(dev_id);
- struct sh_rtc *rtc = platform_get_drvdata(pdev);
- unsigned int tmp, events = 0;
+ struct sh_rtc *rtc = dev_id;
+ unsigned int tmp;
spin_lock(&rtc->lock);
tmp = readb(rtc->regbase + RCR1);
tmp &= ~RCR1_CF;
-
- if (rtc->rearm_aie) {
- if (tmp & RCR1_AF)
- tmp &= ~RCR1_AF; /* try to clear AF again */
- else {
- tmp |= RCR1_AIE; /* AF has cleared, rearm IRQ */
- rtc->rearm_aie = 0;
- }
- }
-
writeb(tmp, rtc->regbase + RCR1);
- rtc_update_irq(rtc->rtc_dev, 1, events);
+ /* Users have requested One x Second IRQ */
+ if (rtc->periodic_freq & PF_OXS)
+ rtc_update_irq(rtc->rtc_dev, 1, RTC_UF | RTC_IRQF);
spin_unlock(&rtc->lock);
@@ -119,47 +118,48 @@ static irqreturn_t sh_rtc_interrupt(int irq, void *dev_id)
static irqreturn_t sh_rtc_alarm(int irq, void *dev_id)
{
- struct platform_device *pdev = to_platform_device(dev_id);
- struct sh_rtc *rtc = platform_get_drvdata(pdev);
- unsigned int tmp, events = 0;
+ struct sh_rtc *rtc = dev_id;
+ unsigned int tmp;
spin_lock(&rtc->lock);
tmp = readb(rtc->regbase + RCR1);
-
- /*
- * If AF is set then the alarm has triggered. If we clear AF while
- * the alarm time still matches the RTC time then AF will
- * immediately be set again, and if AIE is enabled then the alarm
- * interrupt will immediately be retrigger. So we clear AIE here
- * and use rtc->rearm_aie so that the carry interrupt will keep
- * trying to clear AF and once it stays cleared it'll re-enable
- * AIE.
- */
- if (tmp & RCR1_AF) {
- events |= RTC_AF | RTC_IRQF;
-
- tmp &= ~(RCR1_AF|RCR1_AIE);
-
+ tmp &= ~(RCR1_AF | RCR1_AIE);
writeb(tmp, rtc->regbase + RCR1);
- rtc->rearm_aie = 1;
-
- rtc_update_irq(rtc->rtc_dev, 1, events);
- }
+ rtc_update_irq(rtc->rtc_dev, 1, RTC_AF | RTC_IRQF);
spin_unlock(&rtc->lock);
+
return IRQ_HANDLED;
}
static irqreturn_t sh_rtc_periodic(int irq, void *dev_id)
{
- struct platform_device *pdev = to_platform_device(dev_id);
- struct sh_rtc *rtc = platform_get_drvdata(pdev);
+ struct sh_rtc *rtc = dev_id;
+ struct rtc_device *rtc_dev = rtc->rtc_dev;
+ unsigned int tmp;
spin_lock(&rtc->lock);
- rtc_update_irq(rtc->rtc_dev, 1, RTC_PF | RTC_IRQF);
+ tmp = readb(rtc->regbase + RCR2);
+ tmp &= ~RCR2_PEF;
+ writeb(tmp, rtc->regbase + RCR2);
+
+ /* Half period enabled than one skipped and the next notified */
+ if ((rtc->periodic_freq & PF_HP) && (rtc->periodic_freq & PF_COUNT))
+ rtc->periodic_freq &= ~PF_COUNT;
+ else {
+ if (rtc->periodic_freq & PF_HP)
+ rtc->periodic_freq |= PF_COUNT;
+ if (rtc->periodic_freq & PF_KOU) {
+ spin_lock(&rtc_dev->irq_task_lock);
+ if (rtc_dev->irq_task)
+ rtc_dev->irq_task->func(rtc_dev->irq_task->private_data);
+ spin_unlock(&rtc_dev->irq_task_lock);
+ } else
+ rtc_update_irq(rtc->rtc_dev, 1, RTC_PF | RTC_IRQF);
+ }
spin_unlock(&rtc->lock);
@@ -176,8 +176,8 @@ static inline void sh_rtc_setpie(struct device *dev, unsigned int enable)
tmp = readb(rtc->regbase + RCR2);
if (enable) {
- tmp &= ~RCR2_PESMASK;
- tmp |= RCR2_PEF | (2 << 4);
+ tmp &= ~RCR2_PEF; /* Clear PES bit */
+ tmp |= (rtc->periodic_freq & ~PF_HP); /* Set PES2-0 */
} else
tmp &= ~(RCR2_PESMASK | RCR2_PEF);
@@ -186,82 +186,81 @@ static inline void sh_rtc_setpie(struct device *dev, unsigned int enable)
spin_unlock_irq(&rtc->lock);
}
-static inline void sh_rtc_setaie(struct device *dev, unsigned int enable)
+static inline int sh_rtc_setfreq(struct device *dev, unsigned int freq)
{
struct sh_rtc *rtc = dev_get_drvdata(dev);
- unsigned int tmp;
+ int tmp, ret = 0;
spin_lock_irq(&rtc->lock);
+ tmp = rtc->periodic_freq & PF_MASK;
- tmp = readb(rtc->regbase + RCR1);
-
- if (!enable) {
- tmp &= ~RCR1_AIE;
- rtc->rearm_aie = 0;
- } else if (rtc->rearm_aie == 0)
- tmp |= RCR1_AIE;
+ switch (freq) {
+ case 0:
+ rtc->periodic_freq = 0x00;
+ break;
+ case 1:
+ rtc->periodic_freq = 0x60;
+ break;
+ case 2:
+ rtc->periodic_freq = 0x50;
+ break;
+ case 4:
+ rtc->periodic_freq = 0x40;
+ break;
+ case 8:
+ rtc->periodic_freq = 0x30 | PF_HP;
+ break;
+ case 16:
+ rtc->periodic_freq = 0x30;
+ break;
+ case 32:
+ rtc->periodic_freq = 0x20 | PF_HP;
+ break;
+ case 64:
+ rtc->periodic_freq = 0x20;
+ break;
+ case 128:
+ rtc->periodic_freq = 0x10 | PF_HP;
+ break;
+ case 256:
+ rtc->periodic_freq = 0x10;
+ break;
+ default:
+ ret = -ENOTSUPP;
+ }
- writeb(tmp, rtc->regbase + RCR1);
+ if (ret == 0) {
+ rtc->periodic_freq |= tmp;
+ rtc->rtc_dev->irq_freq = freq;
+ }
spin_unlock_irq(&rtc->lock);
+ return ret;
}
-static int sh_rtc_open(struct device *dev)
+static inline void sh_rtc_setaie(struct device *dev, unsigned int enable)
{
struct sh_rtc *rtc = dev_get_drvdata(dev);
unsigned int tmp;
- int ret;
-
- tmp = readb(rtc->regbase + RCR1);
- tmp &= ~RCR1_CF;
- tmp |= RCR1_CIE;
- writeb(tmp, rtc->regbase + RCR1);
- ret = request_irq(rtc->periodic_irq, sh_rtc_periodic, IRQF_DISABLED,
- "sh-rtc period", dev);
- if (unlikely(ret)) {
- dev_err(dev, "request period IRQ failed with %d, IRQ %d\n",
- ret, rtc->periodic_irq);
- return ret;
- }
-
- ret = request_irq(rtc->carry_irq, sh_rtc_interrupt, IRQF_DISABLED,
- "sh-rtc carry", dev);
- if (unlikely(ret)) {
- dev_err(dev, "request carry IRQ failed with %d, IRQ %d\n",
- ret, rtc->carry_irq);
- free_irq(rtc->periodic_irq, dev);
- goto err_bad_carry;
- }
+ spin_lock_irq(&rtc->lock);
- ret = request_irq(rtc->alarm_irq, sh_rtc_alarm, IRQF_DISABLED,
- "sh-rtc alarm", dev);
- if (unlikely(ret)) {
- dev_err(dev, "request alarm IRQ failed with %d, IRQ %d\n",
- ret, rtc->alarm_irq);
- goto err_bad_alarm;
- }
+ tmp = readb(rtc->regbase + RCR1);
- return 0;
+ if (!enable)
+ tmp &= ~RCR1_AIE;
+ else
+ tmp |= RCR1_AIE;
-err_bad_alarm:
- free_irq(rtc->carry_irq, dev);
-err_bad_carry:
- free_irq(rtc->periodic_irq, dev);
+ writeb(tmp, rtc->regbase + RCR1);
- return ret;
+ spin_unlock_irq(&rtc->lock);
}
static void sh_rtc_release(struct device *dev)
{
- struct sh_rtc *rtc = dev_get_drvdata(dev);
-
sh_rtc_setpie(dev, 0);
sh_rtc_setaie(dev, 0);
-
- free_irq(rtc->periodic_irq, dev);
- free_irq(rtc->carry_irq, dev);
- free_irq(rtc->alarm_irq, dev);
}
static int sh_rtc_proc(struct device *dev, struct seq_file *seq)
@@ -270,31 +269,44 @@ static int sh_rtc_proc(struct device *dev, struct seq_file *seq)
unsigned int tmp;
tmp = readb(rtc->regbase + RCR1);
- seq_printf(seq, "carry_IRQ\t: %s\n",
- (tmp & RCR1_CIE) ? "yes" : "no");
+ seq_printf(seq, "carry_IRQ\t: %s\n", (tmp & RCR1_CIE) ? "yes" : "no");
tmp = readb(rtc->regbase + RCR2);
seq_printf(seq, "periodic_IRQ\t: %s\n",
- (tmp & RCR2_PEF) ? "yes" : "no");
+ (tmp & RCR2_PESMASK) ? "yes" : "no");
return 0;
}
static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
{
- unsigned int ret = -ENOIOCTLCMD;
+ struct sh_rtc *rtc = dev_get_drvdata(dev);
+ unsigned int ret = 0;
switch (cmd) {
case RTC_PIE_OFF:
case RTC_PIE_ON:
sh_rtc_setpie(dev, cmd == RTC_PIE_ON);
- ret = 0;
break;
case RTC_AIE_OFF:
case RTC_AIE_ON:
sh_rtc_setaie(dev, cmd == RTC_AIE_ON);
- ret = 0;
break;
+ case RTC_UIE_OFF:
+ rtc->periodic_freq &= ~PF_OXS;
+ break;
+ case RTC_UIE_ON:
+ rtc->periodic_freq |= PF_OXS;
+ break;
+ case RTC_IRQP_READ:
+ ret = put_user(rtc->rtc_dev->irq_freq,
+ (unsigned long __user *)arg);
+ break;
+ case RTC_IRQP_SET:
+ ret = sh_rtc_setfreq(dev, arg);
+ break;
+ default:
+ ret = -ENOIOCTLCMD;
}
return ret;
@@ -421,7 +433,7 @@ static int sh_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
{
struct platform_device *pdev = to_platform_device(dev);
struct sh_rtc *rtc = platform_get_drvdata(pdev);
- struct rtc_time* tm = &wkalrm->time;
+ struct rtc_time *tm = &wkalrm->time;
spin_lock_irq(&rtc->lock);
@@ -452,7 +464,7 @@ static inline void sh_rtc_write_alarm_value(struct sh_rtc *rtc,
writeb(BIN2BCD(value) | AR_ENB, rtc->regbase + reg_off);
}
-static int sh_rtc_check_alarm(struct rtc_time* tm)
+static int sh_rtc_check_alarm(struct rtc_time *tm)
{
/*
* The original rtc says anything > 0xc0 is "don't care" or "match
@@ -503,11 +515,9 @@ static int sh_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
/* disable alarm interrupt and clear the alarm flag */
rcr1 = readb(rtc->regbase + RCR1);
- rcr1 &= ~(RCR1_AF|RCR1_AIE);
+ rcr1 &= ~(RCR1_AF | RCR1_AIE);
writeb(rcr1, rtc->regbase + RCR1);
- rtc->rearm_aie = 0;
-
/* set alarm time */
sh_rtc_write_alarm_value(rtc, tm->tm_sec, RSECAR);
sh_rtc_write_alarm_value(rtc, tm->tm_min, RMINAR);
@@ -529,14 +539,34 @@ static int sh_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
return 0;
}
+static int sh_rtc_irq_set_state(struct device *dev, int enabled)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct sh_rtc *rtc = platform_get_drvdata(pdev);
+
+ if (enabled) {
+ rtc->periodic_freq |= PF_KOU;
+ return sh_rtc_ioctl(dev, RTC_PIE_ON, 0);
+ } else {
+ rtc->periodic_freq &= ~PF_KOU;
+ return sh_rtc_ioctl(dev, RTC_PIE_OFF, 0);
+ }
+}
+
+static int sh_rtc_irq_set_freq(struct device *dev, int freq)
+{
+ return sh_rtc_ioctl(dev, RTC_IRQP_SET, freq);
+}
+
static struct rtc_class_ops sh_rtc_ops = {
- .open = sh_rtc_open,
.release = sh_rtc_release,
.ioctl = sh_rtc_ioctl,
.read_time = sh_rtc_read_time,
.set_time = sh_rtc_set_time,
.read_alarm = sh_rtc_read_alarm,
.set_alarm = sh_rtc_set_alarm,
+ .irq_set_state = sh_rtc_irq_set_state,
+ .irq_set_freq = sh_rtc_irq_set_freq,
.proc = sh_rtc_proc,
};
@@ -544,6 +574,7 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
{
struct sh_rtc *rtc;
struct resource *res;
+ unsigned int tmp;
int ret = -ENOENT;
rtc = kzalloc(sizeof(struct sh_rtc), GFP_KERNEL);
@@ -552,6 +583,7 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
spin_lock_init(&rtc->lock);
+ /* get periodic/carry/alarm irqs */
rtc->periodic_irq = platform_get_irq(pdev, 0);
if (unlikely(rtc->periodic_irq < 0)) {
dev_err(&pdev->dev, "No IRQ for period\n");
@@ -608,8 +640,48 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
rtc->capabilities |= pinfo->capabilities;
}
+ rtc->rtc_dev->max_user_freq = 256;
+ rtc->rtc_dev->irq_freq = 1;
+ rtc->periodic_freq = 0x60;
+
platform_set_drvdata(pdev, rtc);
+ /* register periodic/carry/alarm irqs */
+ ret = request_irq(rtc->periodic_irq, sh_rtc_periodic, IRQF_DISABLED,
+ "sh-rtc period", rtc);
+ if (unlikely(ret)) {
+ dev_err(&pdev->dev,
+ "request period IRQ failed with %d, IRQ %d\n", ret,
+ rtc->periodic_irq);
+ goto err_badmap;
+ }
+
+ ret = request_irq(rtc->carry_irq, sh_rtc_interrupt, IRQF_DISABLED,
+ "sh-rtc carry", rtc);
+ if (unlikely(ret)) {
+ dev_err(&pdev->dev,
+ "request carry IRQ failed with %d, IRQ %d\n", ret,
+ rtc->carry_irq);
+ free_irq(rtc->periodic_irq, rtc);
+ goto err_badmap;
+ }
+
+ ret = request_irq(rtc->alarm_irq, sh_rtc_alarm, IRQF_DISABLED,
+ "sh-rtc alarm", rtc);
+ if (unlikely(ret)) {
+ dev_err(&pdev->dev,
+ "request alarm IRQ failed with %d, IRQ %d\n", ret,
+ rtc->alarm_irq);
+ free_irq(rtc->carry_irq, rtc);
+ free_irq(rtc->periodic_irq, rtc);
+ goto err_badmap;
+ }
+
+ tmp = readb(rtc->regbase + RCR1);
+ tmp &= ~RCR1_CF;
+ tmp |= RCR1_CIE;
+ writeb(tmp, rtc->regbase + RCR1);
+
return 0;
err_badmap:
@@ -630,6 +702,10 @@ static int __devexit sh_rtc_remove(struct platform_device *pdev)
sh_rtc_setpie(&pdev->dev, 0);
sh_rtc_setaie(&pdev->dev, 0);
+ free_irq(rtc->carry_irq, rtc);
+ free_irq(rtc->periodic_irq, rtc);
+ free_irq(rtc->alarm_irq, rtc);
+
release_resource(rtc->res);
platform_set_drvdata(pdev, NULL);
@@ -662,5 +738,8 @@ module_exit(sh_rtc_exit);
MODULE_DESCRIPTION("SuperH on-chip RTC driver");
MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>, Jamie Lenehan <lenehan@twibble.org>");
+MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>, "
+ "Jamie Lenehan <lenehan@twibble.org>, "
+ "Angelo Castello <angelo.castello@st.com>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c
index a265da7c6ff8..31d3c8c28588 100644
--- a/drivers/rtc/rtc-stk17ta8.c
+++ b/drivers/rtc/rtc-stk17ta8.c
@@ -394,6 +394,9 @@ static int __devexit stk17ta8_rtc_remove(struct platform_device *pdev)
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:stk17ta8");
+
static struct platform_driver stk17ta8_rtc_driver = {
.probe = stk17ta8_rtc_probe,
.remove = __devexit_p(stk17ta8_rtc_remove),
diff --git a/drivers/rtc/rtc-v3020.c b/drivers/rtc/rtc-v3020.c
index a6b572978dc0..24203a06051a 100644
--- a/drivers/rtc/rtc-v3020.c
+++ b/drivers/rtc/rtc-v3020.c
@@ -264,3 +264,4 @@ module_exit(v3020_exit);
MODULE_DESCRIPTION("V3020 RTC");
MODULE_AUTHOR("Raphael Assenat");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:v3020");
diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index ce2f78de7a80..be9c70d0b193 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -422,6 +422,9 @@ static int __devexit rtc_remove(struct platform_device *pdev)
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:RTC");
+
static struct platform_driver rtc_platform_driver = {
.probe = rtc_probe,
.remove = __devexit_p(rtc_remove),
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-28 06:57:58 +0300