---

yaml
---
r: 254183
b: refs/heads/master
c: c02a02e
h: refs/heads/master
i:
  254181: f16a225
  254179: 536754c
  254175: 8297a3c
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 49743170556e13156a64f8f20fa412805771b4e1
+refs/heads/master: c02a02ee4db5cd8b95ee3cc705b535f443612583

trunk/Documentation/power/devices.txt

@@ -520,20 +520,59 @@ Support for power domains is provided through the pwr_domain field of struct
 device.  This field is a pointer to an object of type struct dev_power_domain,
 defined in include/linux/pm.h, providing a set of power management callbacks
 analogous to the subsystem-level and device driver callbacks that are executed
-for the given device during all power transitions, instead of the respective
-subsystem-level callbacks.  Specifically, if a device's pm_domain pointer is
-not NULL, the ->suspend() callback from the object pointed to by it will be
-executed instead of its subsystem's (e.g. bus type's) ->suspend() callback and
-anlogously for all of the remaining callbacks.  In other words, power management
-domain callbacks, if defined for the given device, always take precedence over
-the callbacks provided by the device's subsystem (e.g. bus type).
-
-The support for device power management domains is only relevant to platforms
-needing to use the same device driver power management callbacks in many
-different power domain configurations and wanting to avoid incorporating the
-support for power domains into subsystem-level callbacks, for example by
-modifying the platform bus type.  Other platforms need not implement it or take
-it into account in any way.
+for the given device during all power transitions, in addition to the respective
+subsystem-level callbacks.  Specifically, the power domain "suspend" callbacks
+(i.e. ->runtime_suspend(), ->suspend(), ->freeze(), ->poweroff(), etc.) are
+executed after the analogous subsystem-level callbacks, while the power domain
+"resume" callbacks (i.e. ->runtime_resume(), ->resume(), ->thaw(), ->restore,
+etc.) are executed before the analogous subsystem-level callbacks.  Error codes
+returned by the "suspend" and "resume" power domain callbacks are ignored.
+
+Power domain ->runtime_idle() callback is executed before the subsystem-level
+->runtime_idle() callback and the result returned by it is not ignored.  Namely,
+if it returns error code, the subsystem-level ->runtime_idle() callback will not
+be called and the helper function rpm_idle() executing it will return error
+code.  This mechanism is intended to help platforms where saving device state
+is a time consuming operation and should only be carried out if all devices
+in the power domain are idle, before turning off the shared power resource(s).
+Namely, the power domain ->runtime_idle() callback may return error code until
+the pm_runtime_idle() helper (or its asychronous version) has been called for
+all devices in the power domain (it is recommended that the returned error code
+be -EBUSY in those cases), preventing the subsystem-level ->runtime_idle()
+callback from being run prematurely.
+
+The support for device power domains is only relevant to platforms needing to
+use the same subsystem-level (e.g. platform bus type) and device driver power
+management callbacks in many different power domain configurations and wanting
+to avoid incorporating the support for power domains into the subsystem-level
+callbacks.  The other platforms need not implement it or take it into account
+in any way.
+
+
+System Devices
+--------------
+System devices (sysdevs) follow a slightly different API, which can be found in
+
+	include/linux/sysdev.h
+	drivers/base/sys.c
+
+System devices will be suspended with interrupts disabled, and after all other
+devices have been suspended.  On resume, they will be resumed before any other
+devices, and also with interrupts disabled.  These things occur in special
+"sysdev_driver" phases, which affect only system devices.
+
+Thus, after the suspend_noirq (or freeze_noirq or poweroff_noirq) phase, when
+the non-boot CPUs are all offline and IRQs are disabled on the remaining online
+CPU, then a sysdev_driver.suspend phase is carried out, and the system enters a
+sleep state (or a system image is created).  During resume (or after the image
+has been created or loaded) a sysdev_driver.resume phase is carried out, IRQs
+are enabled on the only online CPU, the non-boot CPUs are enabled, and the
+resume_noirq (or thaw_noirq or restore_noirq) phase begins.
+
+Code to actually enter and exit the system-wide low power state sometimes
+involves hardware details that are only known to the boot firmware, and
+may leave a CPU running software (from SRAM or flash memory) that monitors
+the system and manages its wakeup sequence.
 
 
 Device Low Power (suspend) States

trunk/Documentation/power/runtime_pm.txt

@@ -566,6 +566,11 @@ to do this is:
 	pm_runtime_set_active(dev);
 	pm_runtime_enable(dev);
 
+The PM core always increments the run-time usage counter before calling the
+->prepare() callback and decrements it after calling the ->complete() callback.
+Hence disabling run-time PM temporarily like this will not cause any run-time
+suspend callbacks to be lost.
+
 7. Generic subsystem callbacks
 
 Subsystems may wish to conserve code space by using the set of generic power

trunk/Documentation/usb/error-codes.txt

@@ -76,13 +76,6 @@ A transfer's actual_length may be positive even when an error has been
 reported.  That's because transfers often involve several packets, so that
 one or more packets could finish before an error stops further endpoint I/O.
 
-For isochronous URBs, the urb status value is non-zero only if the URB is
-unlinked, the device is removed, the host controller is disabled, or the total
-transferred length is less than the requested length and the URB_SHORT_NOT_OK
-flag is set.  Completion handlers for isochronous URBs should only see
-urb->status set to zero, -ENOENT, -ECONNRESET, -ESHUTDOWN, or -EREMOTEIO.
-Individual frame descriptor status fields may report more status codes.
-
 
 0			Transfer completed successfully
 
@@ -139,7 +132,7 @@ Individual frame descriptor status fields may report more status codes.
 			device removal events immediately.
 
 -EXDEV			ISO transfer only partially completed
-			(only set in iso_frame_desc[n].status, not urb->status)
+			look at individual frame status for details
 
 -EINVAL			ISO madness, if this happens: Log off and go home
 

trunk/MAINTAINERS

@@ -6434,9 +6434,8 @@ S:	Maintained
 F:	drivers/usb/misc/rio500*
 
 USB EHCI DRIVER
-M:	Alan Stern <stern@rowland.harvard.edu>
 L:	linux-usb@vger.kernel.org
-S:	Maintained
+S:	Orphan
 F:	Documentation/usb/ehci.txt
 F:	drivers/usb/host/ehci*
 
@@ -6466,12 +6465,6 @@ S:	Maintained
 F:	Documentation/hid/hiddev.txt
 F:	drivers/hid/usbhid/
 
-USB/IP DRIVERS
-M:	Matt Mooney <mfm@muteddisk.com>
-L:	linux-usb@vger.kernel.org
-S:	Maintained
-F:	drivers/staging/usbip/
-
 USB ISP116X DRIVER
 M:	Olav Kongas <ok@artecdesign.ee>
 L:	linux-usb@vger.kernel.org
@@ -6501,9 +6494,8 @@ S:	Maintained
 F:	sound/usb/midi.*
 
 USB OHCI DRIVER
-M:	Alan Stern <stern@rowland.harvard.edu>
 L:	linux-usb@vger.kernel.org
-S:	Maintained
+S:	Orphan
 F:	Documentation/usb/ohci.txt
 F:	drivers/usb/host/ohci*
 

trunk/Makefile

@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 0
 SUBLEVEL = 0
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc4
 NAME = Sneaky Weasel
 
 # *DOCUMENTATION*

trunk/arch/alpha/include/asm/mmzone.h

@@ -56,6 +56,7 @@ PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
  * Given a kernel address, find the home node of the underlying memory.
  */
 #define kvaddr_to_nid(kaddr)	pa_to_nid(__pa(kaddr))
+#define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
 
 /*
  * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory

trunk/arch/arm/boot/compressed/head.S

@@ -597,8 +597,6 @@ __common_mmu_cache_on:
 		sub	pc, lr, r0, lsr #32	@ properly flush pipeline
 #endif
 
-#define PROC_ENTRY_SIZE (4*5)
-
 /*
  * Here follow the relocatable cache support functions for the
  * various processors.  This is a generic hook for locating an
@@ -626,7 +624,7 @@ call_cache_fn:	adr	r12, proc_types
  ARM(		addeq	pc, r12, r3		) @ call cache function
  THUMB(		addeq	r12, r3			)
  THUMB(		moveq	pc, r12			) @ call cache function
-		add	r12, r12, #PROC_ENTRY_SIZE
+		add	r12, r12, #4*5
 		b	1b
 
 /*
@@ -796,16 +794,6 @@ proc_types:
 
 		.size	proc_types, . - proc_types
 
-		/*
-		 * If you get a "non-constant expression in ".if" statement"
-		 * error from the assembler on this line, check that you have
-		 * not accidentally written a "b" instruction where you should
-		 * have written W(b).
-		 */
-		.if (. - proc_types) % PROC_ENTRY_SIZE != 0
-		.error "The size of one or more proc_types entries is wrong."
-		.endif
-
 /*
  * Turn off the Cache and MMU.  ARMv3 does not support
  * reading the control register, but ARMv4 does.

trunk/arch/arm/include/asm/assembler.h

@@ -13,9 +13,6 @@
  *  Do not include any C declarations in this file - it is included by
  *  assembler source.
  */
-#ifndef __ASM_ASSEMBLER_H__
-#define __ASM_ASSEMBLER_H__
-
 #ifndef __ASSEMBLY__
 #error "Only include this from assembly code"
 #endif
@@ -293,4 +290,3 @@
 	.macro	ldrusr, reg, ptr, inc, cond=al, rept=1, abort=9001f
 	usracc	ldr, \reg, \ptr, \inc, \cond, \rept, \abort
 	.endm
-#endif /* __ASM_ASSEMBLER_H__ */

trunk/arch/arm/include/asm/entry-macro-multi.S

@@ -1,5 +1,3 @@
-#include <asm/assembler.h>
-
 /*
  * Interrupt handling.  Preserves r7, r8, r9
  */

trunk/arch/arm/kernel/module.c

@@ -193,17 +193,8 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 				offset -= 0x02000000;
 			offset += sym->st_value - loc;
 
-			/*
-			 * For function symbols, only Thumb addresses are
-			 * allowed (no interworking).
-			 *
-			 * For non-function symbols, the destination
-			 * has no specific ARM/Thumb disposition, so
-			 * the branch is resolved under the assumption
-			 * that interworking is not required.
-			 */
-			if ((ELF32_ST_TYPE(sym->st_info) == STT_FUNC &&
-				!(offset & 1)) ||
+			/* only Thumb addresses allowed (no interworking) */
+			if (!(offset & 1) ||
 			    offset <= (s32)0xff000000 ||
 			    offset >= (s32)0x01000000) {
 				pr_err("%s: section %u reloc %u sym '%s': relocation %u out of range (%#lx -> %#x)\n",

trunk/arch/arm/kernel/smp.c

@@ -318,13 +318,9 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
 	smp_store_cpu_info(cpu);
 
 	/*
-	 * OK, now it's safe to let the boot CPU continue.  Wait for
-	 * the CPU migration code to notice that the CPU is online
-	 * before we continue.
+	 * OK, now it's safe to let the boot CPU continue
 	 */
 	set_cpu_online(cpu, true);
-	while (!cpu_active(cpu))
-		cpu_relax();
 
 	/*
 	 * OK, it's off to the idle thread for us

trunk/arch/arm/mach-exynos4/init.c

@@ -35,7 +35,6 @@ void __init exynos4_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 			tcfg->clocks = exynos4_serial_clocks;
 			tcfg->clocks_size = ARRAY_SIZE(exynos4_serial_clocks);
 		}
-		tcfg->flags |= NO_NEED_CHECK_CLKSRC;
 	}
 
 	s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);

trunk/arch/arm/mach-h720x/Kconfig

@@ -6,14 +6,12 @@ config ARCH_H7201
 	bool "gms30c7201"
 	depends on ARCH_H720X
 	select CPU_H7201
-	select ZONE_DMA
 	help
 	  Say Y here if you are using the Hynix GMS30C7201 Reference Board
 
 config ARCH_H7202
 	bool "hms30c7202"
 	select CPU_H7202
-	select ZONE_DMA
 	depends on ARCH_H720X
 	help
 	  Say Y here if you are using the Hynix HMS30C7202 Reference Board

trunk/arch/arm/mach-ux500/board-mop500-pins.c

@@ -110,18 +110,10 @@ static pin_cfg_t mop500_pins_common[] = {
 	GPIO168_KP_O0,
 
 	/* UART */
-	/* uart-0 pins gpio configuration should be
-	 * kept intact to prevent glitch in tx line
-	 * when tty dev is opened. Later these pins
-	 * are configured to uart mop500_pins_uart0
-	 *
-	 * It will be replaced with uart configuration
-	 * once the issue is solved.
-	 */
-	GPIO0_GPIO	| PIN_INPUT_PULLUP,
-	GPIO1_GPIO	| PIN_OUTPUT_HIGH,
-	GPIO2_GPIO	| PIN_INPUT_PULLUP,
-	GPIO3_GPIO	| PIN_OUTPUT_HIGH,
+	GPIO0_U0_CTSn	| PIN_INPUT_PULLUP,
+	GPIO1_U0_RTSn	| PIN_OUTPUT_HIGH,
+	GPIO2_U0_RXD	| PIN_INPUT_PULLUP,
+	GPIO3_U0_TXD	| PIN_OUTPUT_HIGH,
 
 	GPIO29_U2_RXD	| PIN_INPUT_PULLUP,
 	GPIO30_U2_TXD	| PIN_OUTPUT_HIGH,

trunk/arch/arm/mach-ux500/board-mop500.c

@@ -27,21 +27,18 @@
 #include <linux/leds-lp5521.h>
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
-#include <linux/delay.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
 #include <plat/i2c.h>
 #include <plat/ste_dma40.h>
-#include <plat/pincfg.h>
 
 #include <mach/hardware.h>
 #include <mach/setup.h>
 #include <mach/devices.h>
 #include <mach/irqs.h>
 
-#include "pins-db8500.h"
 #include "ste-dma40-db8500.h"
 #include "devices-db8500.h"
 #include "board-mop500.h"
@@ -396,63 +393,12 @@ static struct stedma40_chan_cfg uart2_dma_cfg_tx = {
 };
 #endif
 
-
-static pin_cfg_t mop500_pins_uart0[] = {
-	GPIO0_U0_CTSn   | PIN_INPUT_PULLUP,
-	GPIO1_U0_RTSn   | PIN_OUTPUT_HIGH,
-	GPIO2_U0_RXD    | PIN_INPUT_PULLUP,
-	GPIO3_U0_TXD    | PIN_OUTPUT_HIGH,
-};
-
-#define PRCC_K_SOFTRST_SET      0x18
-#define PRCC_K_SOFTRST_CLEAR    0x1C
-static void ux500_uart0_reset(void)
-{
-	void __iomem *prcc_rst_set, *prcc_rst_clr;
-
-	prcc_rst_set = (void __iomem *)IO_ADDRESS(U8500_CLKRST1_BASE +
-			PRCC_K_SOFTRST_SET);
-	prcc_rst_clr = (void __iomem *)IO_ADDRESS(U8500_CLKRST1_BASE +
-			PRCC_K_SOFTRST_CLEAR);
-
-	/* Activate soft reset PRCC_K_SOFTRST_CLEAR */
-	writel((readl(prcc_rst_clr) | 0x1), prcc_rst_clr);
-	udelay(1);
-
-	/* Release soft reset PRCC_K_SOFTRST_SET */
-	writel((readl(prcc_rst_set) | 0x1), prcc_rst_set);
-	udelay(1);
-}
-
-static void ux500_uart0_init(void)
-{
-	int ret;
-
-	ret = nmk_config_pins(mop500_pins_uart0,
-			ARRAY_SIZE(mop500_pins_uart0));
-	if (ret < 0)
-		pr_err("pl011: uart pins_enable failed\n");
-}
-
-static void ux500_uart0_exit(void)
-{
-	int ret;
-
-	ret = nmk_config_pins_sleep(mop500_pins_uart0,
-			ARRAY_SIZE(mop500_pins_uart0));
-	if (ret < 0)
-		pr_err("pl011: uart pins_disable failed\n");
-}
-
 static struct amba_pl011_data uart0_plat = {
 #ifdef CONFIG_STE_DMA40
 	.dma_filter = stedma40_filter,
 	.dma_rx_param = &uart0_dma_cfg_rx,
 	.dma_tx_param = &uart0_dma_cfg_tx,
 #endif
-	.init = ux500_uart0_init,
-	.exit = ux500_uart0_exit,
-	.reset = ux500_uart0_reset,
 };
 
 static struct amba_pl011_data uart1_plat = {