Merge branch 'linux-2.6'

10 files changed, 63 insertions, 28 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 1e6715ec51ef..45e4b9648176 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -404,7 +404,7 @@ config RTC_DRV_SA1100
 
 config RTC_DRV_SH
 	tristate "SuperH On-Chip RTC"
-	depends on RTC_CLASS && (CPU_SH3 || CPU_SH4)
+	depends on RTC_CLASS && SUPERH
 	help
 	  Say Y here to enable support for the on-chip RTC found in
 	  most SuperH processors.
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index f1e00ff54ce8..7e3ad4f3b343 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -251,20 +251,23 @@ void rtc_update_irq(struct rtc_device *rtc,
 }
 EXPORT_SYMBOL_GPL(rtc_update_irq);
 
+static int __rtc_match(struct device *dev, void *data)
+{
+	char *name = (char *)data;
+
+	if (strncmp(dev->bus_id, name, BUS_ID_SIZE) == 0)
+		return 1;
+	return 0;
+}
+
 struct rtc_device *rtc_class_open(char *name)
 {
 	struct device *dev;
 	struct rtc_device *rtc = NULL;
 
-	down(&rtc_class->sem);
-	list_for_each_entry(dev, &rtc_class->devices, node) {
-		if (strncmp(dev->bus_id, name, BUS_ID_SIZE) == 0) {
-			dev = get_device(dev);
-			if (dev)
-				rtc = to_rtc_device(dev);
-			break;
-		}
-	}
+	dev = class_find_device(rtc_class, name, __rtc_match);
+	if (dev)
+		rtc = to_rtc_device(dev);
 
 	if (rtc) {
 		if (!try_module_get(rtc->owner)) {
@@ -272,7 +275,6 @@ struct rtc_device *rtc_class_open(char *name)
 			rtc = NULL;
 		}
 	}
-	up(&rtc_class->sem);
 
 	return rtc;
 }
diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c
index dfef1637bfb8..e0900ca678ec 100644
--- a/drivers/rtc/rtc-ds1672.c
+++ b/drivers/rtc/rtc-ds1672.c
@@ -16,7 +16,7 @@
 #define DRV_VERSION "0.3"
 
 /* Addresses to scan: none. This chip cannot be detected. */
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD;
diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index 1c743641b73b..725b0c73c333 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -61,7 +61,7 @@
 /* i2c configuration */
 #define ISL1208_I2C_ADDR 0xde
 
-static unsigned short normal_i2c[] = {
+static const unsigned short normal_i2c[] = {
 	ISL1208_I2C_ADDR>>1, I2C_CLIENT_END
 };
 I2C_CLIENT_INSMOD; /* defines addr_data */
diff --git a/drivers/rtc/rtc-max6900.c b/drivers/rtc/rtc-max6900.c
index a1cd448639c9..7683412970c4 100644
--- a/drivers/rtc/rtc-max6900.c
+++ b/drivers/rtc/rtc-max6900.c
@@ -54,7 +54,7 @@
 
 #define MAX6900_I2C_ADDR		0xa0
 
-static unsigned short normal_i2c[] = {
+static const unsigned short normal_i2c[] = {
 	MAX6900_I2C_ADDR >> 1,
 	I2C_CLIENT_END
 };
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index 0242d803ebe5..b3317fcc16c3 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -25,7 +25,7 @@
  * located at 0x51 will pass the validation routine due to
  * the way the registers are implemented.
  */
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Module parameters */
 I2C_CLIENT_INSMOD;
diff --git a/drivers/rtc/rtc-pcf8583.c b/drivers/rtc/rtc-pcf8583.c
index 556d0e7da35b..c973ba94c422 100644
--- a/drivers/rtc/rtc-pcf8583.c
+++ b/drivers/rtc/rtc-pcf8583.c
@@ -40,7 +40,7 @@ struct pcf8583 {
 #define CTRL_ALARM	0x02
 #define CTRL_TIMER	0x01
 
-static unsigned short normal_i2c[] = { 0x50, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x50, I2C_CLIENT_END };
 
 /* Module parameters */
 I2C_CLIENT_INSMOD;
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 6f1e9a9804bc..2eb38520f0c8 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -337,6 +337,8 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
 	if (IS_ERR(rtc))
 		return PTR_ERR(rtc);
 
+	device_init_wakeup(&pdev->dev, 1);
+
 	platform_set_drvdata(pdev, rtc);
 
 	return 0;
@@ -352,9 +354,38 @@ static int sa1100_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int sa1100_rtc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	if (pdev->dev.power.power_state.event != state.event) {
+		if (state.event == PM_EVENT_SUSPEND &&
+		    device_may_wakeup(&pdev->dev))
+			enable_irq_wake(IRQ_RTCAlrm);
+
+		pdev->dev.power.power_state = state;
+	}
+	return 0;
+}
+
+static int sa1100_rtc_resume(struct platform_device *pdev)
+{
+	if (pdev->dev.power.power_state.event != PM_EVENT_ON) {
+		if (device_may_wakeup(&pdev->dev))
+			disable_irq_wake(IRQ_RTCAlrm);
+		pdev->dev.power.power_state = PMSG_ON;
+	}
+	return 0;
+}
+#else
+#define sa1100_rtc_suspend	NULL
+#define sa1100_rtc_resume	NULL
+#endif
+
 static struct platform_driver sa1100_rtc_driver = {
 	.probe		= sa1100_rtc_probe,
 	.remove		= sa1100_rtc_remove,
+	.suspend	= sa1100_rtc_suspend,
+	.resume		= sa1100_rtc_resume,
 	.driver		= {
 		.name		= "sa1100-rtc",
 	},
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index 8e8c8b8e81ee..c1d6a1880ccf 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -26,17 +26,7 @@
 #include <asm/rtc.h>
 
 #define DRV_NAME	"sh-rtc"
-#define DRV_VERSION	"0.1.3"
-
-#ifdef CONFIG_CPU_SH3
-#define rtc_reg_size		sizeof(u16)
-#define RTC_BIT_INVERTED	0	/* No bug on SH7708, SH7709A */
-#define RTC_DEF_CAPABILITIES	0UL
-#elif defined(CONFIG_CPU_SH4)
-#define rtc_reg_size		sizeof(u32)
-#define RTC_BIT_INVERTED	0x40	/* bug on SH7750, SH7750S */
-#define RTC_DEF_CAPABILITIES	RTC_CAP_4_DIGIT_YEAR
-#endif
+#define DRV_VERSION	"0.1.6"
 
 #define RTC_REG(r)	((r) * rtc_reg_size)
 
@@ -58,6 +48,18 @@
 #define RCR1		RTC_REG(14)	/* Control */
 #define RCR2		RTC_REG(15)	/* Control */
 
+/*
+ * Note on RYRAR and RCR3: Up until this point most of the register
+ * definitions are consistent across all of the available parts. However,
+ * the placement of the optional RYRAR and RCR3 (the RYRAR control
+ * register used to control RYRCNT/RYRAR compare) varies considerably
+ * across various parts, occasionally being mapped in to a completely
+ * unrelated address space. For proper RYRAR support a separate resource
+ * would have to be handed off, but as this is purely optional in
+ * practice, we simply opt not to support it, thereby keeping the code
+ * quite a bit more simplified.
+ */
+
 /* ALARM Bits - or with BCD encoded value */
 #define AR_ENB		0x80	/* Enable for alarm cmp   */
 
diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c
index b3fae357ca49..b90fb1866ce9 100644
--- a/drivers/rtc/rtc-x1205.c
+++ b/drivers/rtc/rtc-x1205.c
@@ -32,7 +32,7 @@
  * unknown chips, the user must explicitly set the probe parameter.
  */
 
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD;