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r: 303379
b: refs/heads/master
c: 0189a02
h: refs/heads/master
i:
  303377: 35e12d9
  303375: edcfa75
v: v3
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Olof Johansson committed May 9, 2012
1 parent 734da1b commit 0b8b34a
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2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 1df82cd6d7673006ae2ecbe8745bcf44f61c53a8
refs/heads/master: 0189a028b603b2191bd796bbdb4cc7fd57d7315d
19 changes: 19 additions & 0 deletions trunk/Documentation/ABI/testing/sysfs-bus-hsi
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@@ -0,0 +1,19 @@
What: /sys/bus/hsi
Date: April 2012
KernelVersion: 3.4
Contact: Carlos Chinea <carlos.chinea@nokia.com>
Description:
High Speed Synchronous Serial Interface (HSI) is a
serial interface mainly used for connecting application
engines (APE) with cellular modem engines (CMT) in cellular
handsets.
The bus will be populated with devices (hsi_clients) representing
the protocols available in the system. Bus drivers implement
those protocols.

What: /sys/bus/hsi/devices/.../modalias
Date: April 2012
KernelVersion: 3.4
Contact: Carlos Chinea <carlos.chinea@nokia.com>
Description: Stores the same MODALIAS value emitted by uevent
Format: hsi:<hsi_client device name>
2 changes: 1 addition & 1 deletion trunk/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
<refentry id="V4L2-PIX-FMT-NV12M">
<refmeta>
<refentrytitle>V4L2_PIX_FMT_NV12M ('NV12M')</refentrytitle>
<refentrytitle>V4L2_PIX_FMT_NV12M ('NM12')</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
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2 changes: 1 addition & 1 deletion trunk/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
<refentry id="V4L2-PIX-FMT-YUV420M">
<refmeta>
<refentrytitle>V4L2_PIX_FMT_YUV420M ('YU12M')</refentrytitle>
<refentrytitle>V4L2_PIX_FMT_YUV420M ('YM12')</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
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37 changes: 19 additions & 18 deletions trunk/Documentation/power/freezing-of-tasks.txt
Original file line number Diff line number Diff line change
Expand Up @@ -9,38 +9,39 @@ architectures).

II. How does it work?

There are four per-task flags used for that, PF_NOFREEZE, PF_FROZEN, TIF_FREEZE
There are three per-task flags used for that, PF_NOFREEZE, PF_FROZEN
and PF_FREEZER_SKIP (the last one is auxiliary). The tasks that have
PF_NOFREEZE unset (all user space processes and some kernel threads) are
regarded as 'freezable' and treated in a special way before the system enters a
suspend state as well as before a hibernation image is created (in what follows
we only consider hibernation, but the description also applies to suspend).

Namely, as the first step of the hibernation procedure the function
freeze_processes() (defined in kernel/power/process.c) is called. It executes
try_to_freeze_tasks() that sets TIF_FREEZE for all of the freezable tasks and
either wakes them up, if they are kernel threads, or sends fake signals to them,
if they are user space processes. A task that has TIF_FREEZE set, should react
to it by calling the function called __refrigerator() (defined in
kernel/freezer.c), which sets the task's PF_FROZEN flag, changes its state
to TASK_UNINTERRUPTIBLE and makes it loop until PF_FROZEN is cleared for it.
Then, we say that the task is 'frozen' and therefore the set of functions
handling this mechanism is referred to as 'the freezer' (these functions are
defined in kernel/power/process.c, kernel/freezer.c & include/linux/freezer.h).
User space processes are generally frozen before kernel threads.
freeze_processes() (defined in kernel/power/process.c) is called. A system-wide
variable system_freezing_cnt (as opposed to a per-task flag) is used to indicate
whether the system is to undergo a freezing operation. And freeze_processes()
sets this variable. After this, it executes try_to_freeze_tasks() that sends a
fake signal to all user space processes, and wakes up all the kernel threads.
All freezable tasks must react to that by calling try_to_freeze(), which
results in a call to __refrigerator() (defined in kernel/freezer.c), which sets
the task's PF_FROZEN flag, changes its state to TASK_UNINTERRUPTIBLE and makes
it loop until PF_FROZEN is cleared for it. Then, we say that the task is
'frozen' and therefore the set of functions handling this mechanism is referred
to as 'the freezer' (these functions are defined in kernel/power/process.c,
kernel/freezer.c & include/linux/freezer.h). User space processes are generally
frozen before kernel threads.

__refrigerator() must not be called directly. Instead, use the
try_to_freeze() function (defined in include/linux/freezer.h), that checks
the task's TIF_FREEZE flag and makes the task enter __refrigerator() if the
flag is set.
if the task is to be frozen and makes the task enter __refrigerator().

For user space processes try_to_freeze() is called automatically from the
signal-handling code, but the freezable kernel threads need to call it
explicitly in suitable places or use the wait_event_freezable() or
wait_event_freezable_timeout() macros (defined in include/linux/freezer.h)
that combine interruptible sleep with checking if TIF_FREEZE is set and calling
try_to_freeze(). The main loop of a freezable kernel thread may look like the
following one:
that combine interruptible sleep with checking if the task is to be frozen and
calling try_to_freeze(). The main loop of a freezable kernel thread may look
like the following one:

set_freezable();
do {
Expand All @@ -53,7 +54,7 @@ following one:
(from drivers/usb/core/hub.c::hub_thread()).

If a freezable kernel thread fails to call try_to_freeze() after the freezer has
set TIF_FREEZE for it, the freezing of tasks will fail and the entire
initiated a freezing operation, the freezing of tasks will fail and the entire
hibernation operation will be cancelled. For this reason, freezable kernel
threads must call try_to_freeze() somewhere or use one of the
wait_event_freezable() and wait_event_freezable_timeout() macros.
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14 changes: 13 additions & 1 deletion trunk/Documentation/security/keys.txt
Original file line number Diff line number Diff line change
Expand Up @@ -123,7 +123,7 @@ KEY SERVICE OVERVIEW

The key service provides a number of features besides keys:

(*) The key service defines two special key types:
(*) The key service defines three special key types:

(+) "keyring"

Expand All @@ -137,6 +137,18 @@ The key service provides a number of features besides keys:
blobs of data. These can be created, updated and read by userspace,
and aren't intended for use by kernel services.

(+) "logon"

Like a "user" key, a "logon" key has a payload that is an arbitrary
blob of data. It is intended as a place to store secrets which are
accessible to the kernel but not to userspace programs.

The description can be arbitrary, but must be prefixed with a non-zero
length string that describes the key "subclass". The subclass is
separated from the rest of the description by a ':'. "logon" keys can
be created and updated from userspace, but the payload is only
readable from kernel space.

(*) Each process subscribes to three keyrings: a thread-specific keyring, a
process-specific keyring, and a session-specific keyring.

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9 changes: 5 additions & 4 deletions trunk/MAINTAINERS
Original file line number Diff line number Diff line change
Expand Up @@ -2321,9 +2321,9 @@ S: Supported
F: drivers/acpi/dock.c

DOCUMENTATION
M: Randy Dunlap <rdunlap@xenotime.net>
M: Rob Landley <rob@landley.net>
L: linux-doc@vger.kernel.org
T: quilt http://xenotime.net/kernel-doc-patches/current/
T: TBD
S: Maintained
F: Documentation/

Expand Down Expand Up @@ -3592,6 +3592,7 @@ S: Supported
F: drivers/net/wireless/iwlegacy/

INTEL WIRELESS WIFI LINK (iwlwifi)
M: Johannes Berg <johannes.berg@intel.com>
M: Wey-Yi Guy <wey-yi.w.guy@intel.com>
M: Intel Linux Wireless <ilw@linux.intel.com>
L: linux-wireless@vger.kernel.org
Expand Down Expand Up @@ -7578,8 +7579,8 @@ F: Documentation/filesystems/xfs.txt
F: fs/xfs/

XILINX AXI ETHERNET DRIVER
M: Ariane Keller <ariane.keller@tik.ee.ethz.ch>
M: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
M: Anirudha Sarangi <anirudh@xilinx.com>
M: John Linn <John.Linn@xilinx.com>
S: Maintained
F: drivers/net/ethernet/xilinx/xilinx_axienet*

Expand Down
2 changes: 1 addition & 1 deletion trunk/Makefile
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 4
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION = -rc5
NAME = Saber-toothed Squirrel

# *DOCUMENTATION*
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4 changes: 2 additions & 2 deletions trunk/arch/arm/boot/dts/msm8660-surf.dts
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@
intc: interrupt-controller@02080000 {
compatible = "qcom,msm-8660-qgic";
interrupt-controller;
#interrupt-cells = <1>;
#interrupt-cells = <3>;
reg = < 0x02080000 0x1000 >,
< 0x02081000 0x1000 >;
};
Expand All @@ -19,6 +19,6 @@
compatible = "qcom,msm-hsuart", "qcom,msm-uart";
reg = <0x19c40000 0x1000>,
<0x19c00000 0x1000>;
interrupts = <195>;
interrupts = <0 195 0x0>;
};
};
1 change: 1 addition & 0 deletions trunk/arch/arm/configs/imx_v4_v5_defconfig
Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,7 @@ CONFIG_WATCHDOG=y
CONFIG_IMX2_WDT=y
CONFIG_MFD_MC13XXX=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_MC13783=y
CONFIG_REGULATOR_MC13892=y
CONFIG_FB=y
Expand Down
2 changes: 2 additions & 0 deletions trunk/arch/arm/configs/mini2440_defconfig
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,8 @@ CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_ARCH_S3C24XX=y
# CONFIG_CPU_S3C2410 is not set
CONFIG_CPU_S3C2440=y
CONFIG_S3C_ADC=y
CONFIG_S3C24XX_PWM=y
CONFIG_MACH_MINI2440=y
Expand Down
9 changes: 4 additions & 5 deletions trunk/arch/arm/configs/u8500_defconfig
Original file line number Diff line number Diff line change
Expand Up @@ -8,8 +8,6 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
CONFIG_ARCH_U8500=y
CONFIG_UX500_SOC_DB5500=y
CONFIG_UX500_SOC_DB8500=y
CONFIG_MACH_HREFV60=y
CONFIG_MACH_SNOWBALL=y
CONFIG_MACH_U5500=y
Expand Down Expand Up @@ -39,7 +37,6 @@ CONFIG_CAIF=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=65536
CONFIG_MISC_DEVICES=y
CONFIG_AB8500_PWM=y
CONFIG_SENSORS_BH1780=y
CONFIG_NETDEVICES=y
Expand All @@ -65,16 +62,18 @@ CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_NOMADIK=y
CONFIG_I2C=y
CONFIG_I2C_NOMADIK=y
CONFIG_SPI=y
CONFIG_SPI_PL022=y
CONFIG_GPIO_STMPE=y
CONFIG_GPIO_TC3589X=y
CONFIG_POWER_SUPPLY=y
CONFIG_AB8500_BM=y
CONFIG_AB8500_BATTERY_THERM_ON_BATCTRL=y
CONFIG_MFD_STMPE=y
CONFIG_MFD_TC3589X=y
CONFIG_AB5500_CORE=y
CONFIG_AB8500_CORE=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_AB8500=y
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_GADGET=y
Expand Down
6 changes: 1 addition & 5 deletions trunk/arch/arm/kernel/smp_twd.c
Original file line number Diff line number Diff line change
Expand Up @@ -118,14 +118,10 @@ static int twd_cpufreq_transition(struct notifier_block *nb,
* The twd clock events must be reprogrammed to account for the new
* frequency. The timer is local to a cpu, so cross-call to the
* changing cpu.
*
* Only wait for it to finish, if the cpu is active to avoid
* deadlock when cpu1 is spinning on while(!cpu_active(cpu1)) during
* booting of that cpu.
*/
if (state == CPUFREQ_POSTCHANGE || state == CPUFREQ_RESUMECHANGE)
smp_call_function_single(freqs->cpu, twd_update_frequency,
NULL, cpu_active(freqs->cpu));
NULL, 1);

return NOTIFY_OK;
}
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1 change: 0 additions & 1 deletion trunk/arch/arm/mach-at91/at91rm9200_devices.c
Original file line number Diff line number Diff line change
Expand Up @@ -1173,7 +1173,6 @@ void __init at91_add_device_serial(void)
printk(KERN_INFO "AT91: No default serial console defined.\n");
}
#else
void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
void __init at91_set_serial_console(unsigned portnr) {}
void __init at91_add_device_serial(void) {}
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2 changes: 2 additions & 0 deletions trunk/arch/arm/mach-at91/at91rm9200_time.c
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/clockchips.h>
#include <linux/export.h>

#include <asm/mach/time.h>

Expand Down Expand Up @@ -176,6 +177,7 @@ static struct clock_event_device clkevt = {
};

void __iomem *at91_st_base;
EXPORT_SYMBOL_GPL(at91_st_base);

void __init at91rm9200_ioremap_st(u32 addr)
{
Expand Down
2 changes: 1 addition & 1 deletion trunk/arch/arm/mach-at91/board-rm9200ek.c
Original file line number Diff line number Diff line change
Expand Up @@ -117,7 +117,7 @@ static struct i2c_board_info __initdata ek_i2c_devices[] = {
};

#define EK_FLASH_BASE AT91_CHIPSELECT_0
#define EK_FLASH_SIZE SZ_2M
#define EK_FLASH_SIZE SZ_8M

static struct physmap_flash_data ek_flash_data = {
.width = 2,
Expand Down
5 changes: 3 additions & 2 deletions trunk/arch/arm/mach-at91/board-sam9261ek.c
Original file line number Diff line number Diff line change
Expand Up @@ -85,8 +85,6 @@ static struct resource dm9000_resource[] = {
.flags = IORESOURCE_MEM
},
[2] = {
.start = AT91_PIN_PC11,
.end = AT91_PIN_PC11,
.flags = IORESOURCE_IRQ
| IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
}
Expand Down Expand Up @@ -130,6 +128,8 @@ static struct sam9_smc_config __initdata dm9000_smc_config = {

static void __init ek_add_device_dm9000(void)
{
struct resource *r = &dm9000_resource[2];

/* Configure chip-select 2 (DM9000) */
sam9_smc_configure(0, 2, &dm9000_smc_config);

Expand All @@ -139,6 +139,7 @@ static void __init ek_add_device_dm9000(void)
/* Configure Interrupt pin as input, no pull-up */
at91_set_gpio_input(AT91_PIN_PC11, 0);

r->start = r->end = gpio_to_irq(AT91_PIN_PC11);
platform_device_register(&dm9000_device);
}
#else
Expand Down
1 change: 1 addition & 0 deletions trunk/arch/arm/mach-at91/clock.c
Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@
#include "generic.h"

void __iomem *at91_pmc_base;
EXPORT_SYMBOL_GPL(at91_pmc_base);

/*
* There's a lot more which can be done with clocks, including cpufreq
Expand Down
2 changes: 1 addition & 1 deletion trunk/arch/arm/mach-at91/include/mach/at91_pmc.h
Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ extern void __iomem *at91_pmc_base;
#define at91_pmc_write(field, value) \
__raw_writel(value, at91_pmc_base + field)
#else
.extern at91_aic_base
.extern at91_pmc_base
#endif

#define AT91_PMC_SCER 0x00 /* System Clock Enable Register */
Expand Down
2 changes: 2 additions & 0 deletions trunk/arch/arm/mach-at91/setup.c
Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,7 @@ void __init at91_init_interrupts(unsigned int *priority)
}

void __iomem *at91_ramc_base[2];
EXPORT_SYMBOL_GPL(at91_ramc_base);

void __init at91_ioremap_ramc(int id, u32 addr, u32 size)
{
Expand Down Expand Up @@ -292,6 +293,7 @@ void __init at91_ioremap_rstc(u32 base_addr)
}

void __iomem *at91_matrix_base;
EXPORT_SYMBOL_GPL(at91_matrix_base);

void __init at91_ioremap_matrix(u32 base_addr)
{
Expand Down
4 changes: 2 additions & 2 deletions trunk/arch/arm/mach-bcmring/core.c
Original file line number Diff line number Diff line change
Expand Up @@ -52,8 +52,8 @@
#include <mach/csp/chipcHw_inline.h>
#include <mach/csp/tmrHw_reg.h>

static AMBA_APB_DEVICE(uartA, "uarta", MM_ADDR_IO_UARTA, { IRQ_UARTA }, NULL);
static AMBA_APB_DEVICE(uartB, "uartb", MM_ADDR_IO_UARTB, { IRQ_UARTB }, NULL);
static AMBA_APB_DEVICE(uartA, "uartA", 0, MM_ADDR_IO_UARTA, {IRQ_UARTA}, NULL);
static AMBA_APB_DEVICE(uartB, "uartB", 0, MM_ADDR_IO_UARTB, {IRQ_UARTB}, NULL);

static struct clk pll1_clk = {
.name = "PLL1",
Expand Down
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