Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC] uctrl: Check request_irq() return value.
  [SPARC64]: Update defconfig.
  [SPARC64] bbc_i2c: Fix kenvctrld eating %100 cpu.
  [SPARC64]: Fix arch_teardown_msi_irq().
  [SPARC64]: virt_irq_free only needed when CONFIG_PCI_MSI
  [SPARC]: Remove the broken SUN_AURORA driver.

Documentation/magic-number.txt

@@ -65,7 +65,6 @@ CMAGIC                0x0111      user              include/linux/a.out.h
 MKISS_DRIVER_MAGIC    0x04bf      mkiss_channel     drivers/net/mkiss.h
 RISCOM8_MAGIC         0x0907      riscom_port       drivers/char/riscom8.h
 SPECIALIX_MAGIC       0x0907      specialix_port    drivers/char/specialix_io8.h
-AURORA_MAGIC          0x0A18      Aurora_port       drivers/sbus/char/aurora.h
 HDLC_MAGIC            0x239e      n_hdlc            drivers/char/n_hdlc.c
 APM_BIOS_MAGIC        0x4101      apm_user          arch/i386/kernel/apm.c
 CYCLADES_MAGIC        0x4359      cyclades_port     include/linux/cyclades.h

arch/sparc64/defconfig

 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20
-# Sun Feb 11 23:47:40 2007
+# Linux kernel version: 2.6.21-rc1
+# Mon Feb 26 10:45:21 2007
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
@@ -41,6 +41,7 @@ CONFIG_LOCALVERSION=""
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 # CONFIG_IPC_NS is not set
+CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
@@ -322,6 +323,7 @@ CONFIG_CONNECTOR=m
 #
 # Plug and Play support
 #
+# CONFIG_PNPACPI is not set
 
 #
 # Block devices
@@ -787,6 +789,7 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_OCORES is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_PASEMI is not set
 # CONFIG_I2C_PROSAVAGE is not set
 # CONFIG_I2C_SAVAGE4 is not set
 # CONFIG_I2C_SIS5595 is not set
@@ -833,6 +836,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_ADM1021 is not set
 # CONFIG_SENSORS_ADM1025 is not set
 # CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1029 is not set
 # CONFIG_SENSORS_ADM1031 is not set
 # CONFIG_SENSORS_ADM9240 is not set
 # CONFIG_SENSORS_ASB100 is not set
@@ -873,6 +877,11 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_W83627EHF is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
 
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
 #
 # Multimedia devices
 #
@@ -887,16 +896,22 @@ CONFIG_HWMON=y
 #
 # Graphics support
 #
-# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
 CONFIG_FB_DDC=y
 CONFIG_FB_CFB_FILLRECT=y
 CONFIG_FB_CFB_COPYAREA=y
 CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_SVGALIB is not set
 # CONFIG_FB_MACMODES is not set
 # CONFIG_FB_BACKLIGHT is not set
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
+
+#
+# Frambuffer hardware drivers
+#
 # CONFIG_FB_CIRRUS is not set
 # CONFIG_FB_PM2 is not set
 # CONFIG_FB_ASILIANT is not set
@@ -908,9 +923,11 @@ CONFIG_FB_TILEBLITTING=y
 # CONFIG_FB_MATROX is not set
 CONFIG_FB_RADEON=y
 CONFIG_FB_RADEON_I2C=y
+# CONFIG_FB_RADEON_BACKLIGHT is not set
 # CONFIG_FB_RADEON_DEBUG is not set
 # CONFIG_FB_ATY128 is not set
 # CONFIG_FB_ATY is not set
+# CONFIG_FB_S3 is not set
 # CONFIG_FB_SAVAGE is not set
 # CONFIG_FB_SIS is not set
 # CONFIG_FB_NEOMAGIC is not set
@@ -947,7 +964,6 @@ CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_VGA16 is not set
 # CONFIG_LOGO_LINUX_CLUT224 is not set
 CONFIG_LOGO_SUN_CLUT224=y
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Sound
@@ -1192,6 +1208,7 @@ CONFIG_USB_HIDDEV=y
 # CONFIG_USB_RIO500 is not set
 # CONFIG_USB_LEGOTOWER is not set
 # CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
 # CONFIG_USB_LED is not set
 # CONFIG_USB_CYPRESS_CY7C63 is not set
 # CONFIG_USB_CYTHERM is not set
@@ -1445,9 +1462,11 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
 CONFIG_LOG_BUF_SHIFT=18
 CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHEDSTATS=y
+# CONFIG_TIMER_STATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
@@ -1465,6 +1484,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_FORCED_INLINING=y
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_LKDTM is not set
+# CONFIG_FAULT_INJECTION is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
 # CONFIG_DEBUG_DCFLUSH is not set
 # CONFIG_STACK_DEBUG is not set

arch/sparc64/kernel/irq.c

@@ -109,6 +109,7 @@ static unsigned char virt_irq_alloc(unsigned int real_irq)
 	return ent;
 }
 
+#ifdef CONFIG_PCI_MSI
 static void virt_irq_free(unsigned int virt_irq)
 {
 	unsigned int real_irq;
@@ -121,6 +122,7 @@ static void virt_irq_free(unsigned int virt_irq)
 
 	__bucket(real_irq)->virt_irq = 0;
 }
+#endif
 
 static unsigned int virt_to_real_irq(unsigned char virt_irq)
 {

arch/sparc64/kernel/pci.c

@@ -668,7 +668,7 @@ int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 
 void arch_teardown_msi_irq(unsigned int virt_irq)
 {
-	struct msi_desc *entry = get_irq_data(virt_irq);
+	struct msi_desc *entry = get_irq_msi(virt_irq);
 	struct pci_dev *pdev = entry->dev;
 	struct pcidev_cookie *pcp = pdev->sysdata;
 	struct pci_pbm_info *pbm = pcp->pbm;

drivers/sbus/char/Kconfig

@@ -46,13 +46,6 @@ config SUN_VIDEOPIX
 	  based on the Phillips SAA9051, can handle NTSC and PAL/SECAM and
 	  SVIDEO signals.
 
-config SUN_AURORA
-	tristate "Aurora Multiboard 1600se (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && BROKEN
-	help
-	  The Aurora Multiboard is a multi-port high-speed serial controller.
-	  If you have one of these, say Y.
-
 config TADPOLE_TS102_UCTRL
 	tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)"
 	depends on EXPERIMENTAL && SPARC32

drivers/sbus/char/Makefile

@@ -19,7 +19,6 @@ obj-$(CONFIG_SUN_OPENPROMIO)		+= openprom.o
 obj-$(CONFIG_SUN_MOSTEK_RTC)		+= rtc.o
 obj-$(CONFIG_SUN_BPP)			+= bpp.o
 obj-$(CONFIG_SUN_VIDEOPIX)		+= vfc.o
-obj-$(CONFIG_SUN_AURORA)		+= aurora.o
 obj-$(CONFIG_TADPOLE_TS102_UCTRL)	+= uctrl.o
 obj-$(CONFIG_SUN_JSFLASH)		+= jsflash.o
 obj-$(CONFIG_BBC_I2C)			+= bbc.o

drivers/sbus/char/bbc_i2c.c

@@ -187,19 +187,20 @@ static int wait_for_pin(struct bbc_i2c_bus *bp, u8 *status)
 	bp->waiting = 1;
 	add_wait_queue(&bp->wq, &wait);
 	while (limit-- > 0) {
-		u8 val;
-
-		set_current_state(TASK_INTERRUPTIBLE);
-		*status = val = readb(bp->i2c_control_regs + 0);
-		if ((val & I2C_PCF_PIN) == 0) {
+		unsigned long val;
+
+		val = wait_event_interruptible_timeout(
+				bp->wq,
+				(((*status = readb(bp->i2c_control_regs + 0))
+				  & I2C_PCF_PIN) == 0),
+				msecs_to_jiffies(250));
+		if (val > 0) {
 			ret = 0;
 			break;
 		}
-		msleep_interruptible(250);
 	}
 	remove_wait_queue(&bp->wq, &wait);
 	bp->waiting = 0;
-	current->state = TASK_RUNNING;
 
 	return ret;
 }
@@ -340,7 +341,7 @@ static irqreturn_t bbc_i2c_interrupt(int irq, void *dev_id)
 	 */
 	if (bp->waiting &&
 	    !(readb(bp->i2c_control_regs + 0x0) & I2C_PCF_PIN))
-		wake_up(&bp->wq);
+		wake_up_interruptible(&bp->wq);
 
 	return IRQ_HANDLED;
 }

drivers/sbus/char/uctrl.c

@@ -364,6 +364,7 @@ static int __init ts102_uctrl_init(void)
 	struct linux_prom_irqs tmp_irq[2];
         unsigned int vaddr[2] = { 0, 0 };
 	int tmpnode, uctrlnode = prom_getchild(prom_root_node);
+	int err;
 
 	tmpnode = prom_searchsiblings(uctrlnode, "obio");
 
@@ -389,7 +390,12 @@ static int __init ts102_uctrl_init(void)
 	if(!driver->irq) 
 		driver->irq = tmp_irq[0].pri;
 
-	request_irq(driver->irq, uctrl_interrupt, 0, "uctrl", driver);
+	err = request_irq(driver->irq, uctrl_interrupt, 0, "uctrl", driver);
+	if (err) {
+		printk("%s: unable to register irq %d\n",
+		       __FUNCTION__, driver->irq);
+		return err;
+	}
 
 	if (misc_register(&uctrl_dev)) {
 		printk("%s: unable to get misc minor %d\n",