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yaml
---
r: 334371
b: refs/heads/master
c: ecb2ecd
h: refs/heads/master
i:
  334369: dc9173e
  334367: 43896ef
v: v3
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Linus Torvalds committed Oct 17, 2012
1 parent b2e564c commit e35238f
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Showing 16 changed files with 78 additions and 142 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: c54d0dc35324300cdc502137f5c0ee44f53d7a8b
refs/heads/master: ecb2ecd9c241de16ebb31b7dc441dbbfc0f6006e
65 changes: 3 additions & 62 deletions trunk/Documentation/IPMI.txt
Original file line number Diff line number Diff line change
Expand Up @@ -42,13 +42,7 @@ The driver interface depends on your hardware. If your system
properly provides the SMBIOS info for IPMI, the driver will detect it
and just work. If you have a board with a standard interface (These
will generally be either "KCS", "SMIC", or "BT", consult your hardware
manual), choose the 'IPMI SI handler' option. A driver also exists
for direct I2C access to the IPMI management controller. Some boards
support this, but it is unknown if it will work on every board. For
this, choose 'IPMI SMBus handler', but be ready to try to do some
figuring to see if it will work on your system if the SMBIOS/APCI
information is wrong or not present. It is fairly safe to have both
these enabled and let the drivers auto-detect what is present.
manual), choose the 'IPMI SI handler' option.

You should generally enable ACPI on your system, as systems with IPMI
can have ACPI tables describing them.
Expand All @@ -58,8 +52,7 @@ their job correctly, the IPMI controller should be automatically
detected (via ACPI or SMBIOS tables) and should just work. Sadly,
many boards do not have this information. The driver attempts
standard defaults, but they may not work. If you fall into this
situation, you need to read the section below named 'The SI Driver' or
"The SMBus Driver" on how to hand-configure your system.
situation, you need to read the section below named 'The SI Driver'.

IPMI defines a standard watchdog timer. You can enable this with the
'IPMI Watchdog Timer' config option. If you compile the driver into
Expand Down Expand Up @@ -104,12 +97,7 @@ driver, each open file for this device ties in to the message handler
as an IPMI user.

ipmi_si - A driver for various system interfaces. This supports KCS,
SMIC, and BT interfaces. Unless you have an SMBus interface or your
own custom interface, you probably need to use this.

ipmi_smb - A driver for accessing BMCs on the SMBus. It uses the
I2C kernel driver's SMBus interfaces to send and receive IPMI messages
over the SMBus.
SMIC, and BT interfaces.

ipmi_watchdog - IPMI requires systems to have a very capable watchdog
timer. This driver implements the standard Linux watchdog timer
Expand Down Expand Up @@ -482,53 +470,6 @@ for specifying an interface. Note that when removing an interface,
only the first three parameters (si type, address type, and address)
are used for the comparison. Any options are ignored for removing.

The SMBus Driver
----------------

The SMBus driver allows up to 4 SMBus devices to be configured in the
system. By default, the driver will register any SMBus interfaces it finds
in the I2C address range of 0x20 to 0x4f on any adapter. You can change this
at module load time (for a module) with:

modprobe ipmi_smb.o
addr=<adapter1>,<i2caddr1>[,<adapter2>,<i2caddr2>[,...]]
dbg=<flags1>,<flags2>...
[defaultprobe=1] [dbg_probe=1]

The addresses are specified in pairs, the first is the adapter ID and the
second is the I2C address on that adapter.

The debug flags are bit flags for each BMC found, they are:
IPMI messages: 1, driver state: 2, timing: 4, I2C probe: 8

Setting smb_defaultprobe to zero disabled the default probing of SMBus
interfaces at address range 0x20 to 0x4f. This means that only the
BMCs specified on the smb_addr line will be detected.

Setting smb_dbg_probe to 1 will enable debugging of the probing and
detection process for BMCs on the SMBusses.

Discovering the IPMI compliant BMC on the SMBus can cause devices
on the I2C bus to fail. The SMBus driver writes a "Get Device ID" IPMI
message as a block write to the I2C bus and waits for a response.
This action can be detrimental to some I2C devices. It is highly recommended
that the known I2c address be given to the SMBus driver in the smb_addr
parameter. The default address range will not be used when a smb_addr
parameter is provided.

When compiled into the kernel, the addresses can be specified on the
kernel command line as:

ipmb_smb.addr=<adapter1>,<i2caddr1>[,<adapter2>,<i2caddr2>[,...]]
ipmi_smb.dbg=<flags1>,<flags2>...
ipmi_smb.defaultprobe=0 ipmi_smb.dbg_probe=1

These are the same options as on the module command line.

Note that you might need some I2C changes if CONFIG_IPMI_PANIC_EVENT
is enabled along with this, so the I2C driver knows to run to
completion during sending a panic event.


Other Pieces
------------
Expand Down
2 changes: 1 addition & 1 deletion trunk/MAINTAINERS
Original file line number Diff line number Diff line change
Expand Up @@ -4372,7 +4372,7 @@ F: Documentation/scsi/53c700.txt
F: drivers/scsi/53c700*

LED SUBSYSTEM
M: Bryan Wu <bryan.wu@canonical.com>
M: Bryan Wu <cooloney@gmail.com>
M: Richard Purdie <rpurdie@rpsys.net>
L: linux-leds@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds.git
Expand Down
13 changes: 0 additions & 13 deletions trunk/arch/arm/mach-prima2/include/mach/gpio.h

This file was deleted.

4 changes: 4 additions & 0 deletions trunk/drivers/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,10 @@ obj-$(CONFIG_PARISC) += parisc/
obj-$(CONFIG_RAPIDIO) += rapidio/
obj-y += video/
obj-y += idle/

# IPMI must come before ACPI in order to provide IPMI opregion support
obj-$(CONFIG_IPMI_HANDLER) += char/ipmi/

obj-$(CONFIG_ACPI) += acpi/
obj-$(CONFIG_SFI) += sfi/
# PnP must come after ACPI since it will eventually need to check if acpi
Expand Down
5 changes: 4 additions & 1 deletion trunk/drivers/acpi/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,10 @@ acpi-y += video_detect.o
endif

# These are (potentially) separate modules

# IPMI may be used by other drivers, so it has to initialise before them
obj-$(CONFIG_ACPI_IPMI) += acpi_ipmi.o

obj-$(CONFIG_ACPI_AC) += ac.o
obj-$(CONFIG_ACPI_BUTTON) += button.o
obj-$(CONFIG_ACPI_FAN) += fan.o
Expand All @@ -70,6 +74,5 @@ processor-y += processor_idle.o processor_thermal.o
processor-$(CONFIG_CPU_FREQ) += processor_perflib.o

obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += acpi_pad.o
obj-$(CONFIG_ACPI_IPMI) += acpi_ipmi.o

obj-$(CONFIG_ACPI_APEI) += apei/
1 change: 0 additions & 1 deletion trunk/drivers/char/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,6 @@ obj-$(CONFIG_TELCLOCK) += tlclk.o
obj-$(CONFIG_MWAVE) += mwave/
obj-$(CONFIG_AGP) += agp/
obj-$(CONFIG_PCMCIA) += pcmcia/
obj-$(CONFIG_IPMI_HANDLER) += ipmi/

obj-$(CONFIG_HANGCHECK_TIMER) += hangcheck-timer.o
obj-$(CONFIG_TCG_TPM) += tpm/
Expand Down
2 changes: 1 addition & 1 deletion trunk/drivers/char/ipmi/ipmi_msghandler.c
Original file line number Diff line number Diff line change
Expand Up @@ -1880,7 +1880,7 @@ int ipmi_request_supply_msgs(ipmi_user_t user,
struct ipmi_recv_msg *supplied_recv,
int priority)
{
unsigned char saddr, lun;
unsigned char saddr = 0, lun = 0;
int rv;

if (!user)
Expand Down
36 changes: 34 additions & 2 deletions trunk/drivers/char/ipmi/ipmi_si_intf.c
Original file line number Diff line number Diff line change
Expand Up @@ -2424,6 +2424,38 @@ static void ipmi_pci_cleanup(struct smi_info *info)
pci_disable_device(pdev);
}

static int __devinit ipmi_pci_probe_regspacing(struct smi_info *info)
{
if (info->si_type == SI_KCS) {
unsigned char status;
int regspacing;

info->io.regsize = DEFAULT_REGSIZE;
info->io.regshift = 0;
info->io_size = 2;
info->handlers = &kcs_smi_handlers;

/* detect 1, 4, 16byte spacing */
for (regspacing = DEFAULT_REGSPACING; regspacing <= 16;) {
info->io.regspacing = regspacing;
if (info->io_setup(info)) {
dev_err(info->dev,
"Could not setup I/O space\n");
return DEFAULT_REGSPACING;
}
/* write invalid cmd */
info->io.outputb(&info->io, 1, 0x10);
/* read status back */
status = info->io.inputb(&info->io, 1);
info->io_cleanup(info);
if (status)
return regspacing;
regspacing *= 4;
}
}
return DEFAULT_REGSPACING;
}

static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
Expand Down Expand Up @@ -2476,8 +2508,8 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
}
info->io.addr_data = pci_resource_start(pdev, 0);

info->io.regspacing = DEFAULT_REGSPACING;
info->io.regsize = DEFAULT_REGSPACING;
info->io.regspacing = ipmi_pci_probe_regspacing(info);
info->io.regsize = DEFAULT_REGSIZE;
info->io.regshift = 0;

info->irq = pdev->irq;
Expand Down
5 changes: 2 additions & 3 deletions trunk/drivers/pinctrl/pinctrl-bcm2835.c
Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,6 @@
#include <linux/irq.h>
#include <linux/irqdesc.h>
#include <linux/irqdomain.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of.h>
Expand Down Expand Up @@ -960,7 +959,7 @@ static int __devinit bcm2835_pinctrl_probe(struct platform_device *pdev)
return err;
}

pc->base = devm_request_and_ioremap(&pdev->dev, &iomem);
pc->base = devm_request_and_ioremap(dev, &iomem);
if (!pc->base)
return -EADDRNOTAVAIL;

Expand Down Expand Up @@ -1032,7 +1031,7 @@ static int __devinit bcm2835_pinctrl_probe(struct platform_device *pdev)
pc->pctl_dev = pinctrl_register(&bcm2835_pinctrl_desc, dev, pc);
if (!pc->pctl_dev) {
gpiochip_remove(&pc->gpio_chip);
return PTR_ERR(pc->pctl_dev);
return -EINVAL;
}

pc->gpio_range = bcm2835_pinctrl_gpio_range;
Expand Down
26 changes: 16 additions & 10 deletions trunk/drivers/pinctrl/pinctrl-nomadik.c
Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,20 @@
#include <linux/pinctrl/pinconf.h>
/* Since we request GPIOs from ourself */
#include <linux/pinctrl/consumer.h>
/*
* For the U8500 archs, use the PRCMU register interface, for the older
* Nomadik, provide some stubs. The functions using these will only be
* called on the U8500 series.
*/
#ifdef CONFIG_ARCH_U8500
#include <linux/mfd/dbx500-prcmu.h>
#else
static inline u32 prcmu_read(unsigned int reg) {
return 0;
}
static inline void prcmu_write(unsigned int reg, u32 value) {}
static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value) {}
#endif

#include <asm/mach/irq.h>

Expand Down Expand Up @@ -1268,6 +1281,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev)
struct clk *clk;
int secondary_irq;
void __iomem *base;
int irq_start = -1;
int irq;
int ret;

Expand Down Expand Up @@ -1371,19 +1385,11 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev)

platform_set_drvdata(dev, nmk_chip);

if (np) {
/* The DT case will just grab a set of IRQ numbers */
nmk_chip->domain = irq_domain_add_linear(np, NMK_GPIO_PER_CHIP,
&nmk_gpio_irq_simple_ops, nmk_chip);
} else {
/* Non-DT legacy mode, use hardwired IRQ numbers */
int irq_start;

if (!np)
irq_start = NOMADIK_GPIO_TO_IRQ(pdata->first_gpio);
nmk_chip->domain = irq_domain_add_simple(NULL,
nmk_chip->domain = irq_domain_add_simple(NULL,
NMK_GPIO_PER_CHIP, irq_start,
&nmk_gpio_irq_simple_ops, nmk_chip);
}
if (!nmk_chip->domain) {
dev_err(&dev->dev, "failed to create irqdomain\n");
ret = -ENOSYS;
Expand Down
10 changes: 5 additions & 5 deletions trunk/drivers/pinctrl/pinctrl-samsung.c
Original file line number Diff line number Diff line change
Expand Up @@ -513,7 +513,7 @@ static int samsung_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
* Parse the pin names listed in the 'samsung,pins' property and convert it
* into a list of gpio numbers are create a pin group from it.
*/
static int __init samsung_pinctrl_parse_dt_pins(struct platform_device *pdev,
static int __devinit samsung_pinctrl_parse_dt_pins(struct platform_device *pdev,
struct device_node *cfg_np, struct pinctrl_desc *pctl,
unsigned int **pin_list, unsigned int *npins)
{
Expand Down Expand Up @@ -560,7 +560,7 @@ static int __init samsung_pinctrl_parse_dt_pins(struct platform_device *pdev,
* from device node of the pin-controller. A pin group is formed with all
* the pins listed in the "samsung,pins" property.
*/
static int __init samsung_pinctrl_parse_dt(struct platform_device *pdev,
static int __devinit samsung_pinctrl_parse_dt(struct platform_device *pdev,
struct samsung_pinctrl_drv_data *drvdata)
{
struct device *dev = &pdev->dev;
Expand Down Expand Up @@ -655,7 +655,7 @@ static int __init samsung_pinctrl_parse_dt(struct platform_device *pdev,
}

/* register the pinctrl interface with the pinctrl subsystem */
static int __init samsung_pinctrl_register(struct platform_device *pdev,
static int __devinit samsung_pinctrl_register(struct platform_device *pdev,
struct samsung_pinctrl_drv_data *drvdata)
{
struct pinctrl_desc *ctrldesc = &drvdata->pctl;
Expand Down Expand Up @@ -729,7 +729,7 @@ static int __init samsung_pinctrl_register(struct platform_device *pdev,
}

/* register the gpiolib interface with the gpiolib subsystem */
static int __init samsung_gpiolib_register(struct platform_device *pdev,
static int __devinit samsung_gpiolib_register(struct platform_device *pdev,
struct samsung_pinctrl_drv_data *drvdata)
{
struct gpio_chip *gc;
Expand Down Expand Up @@ -762,7 +762,7 @@ static int __init samsung_gpiolib_register(struct platform_device *pdev,
}

/* unregister the gpiolib interface with the gpiolib subsystem */
static int __init samsung_gpiolib_unregister(struct platform_device *pdev,
static int __devinit samsung_gpiolib_unregister(struct platform_device *pdev,
struct samsung_pinctrl_drv_data *drvdata)
{
int ret = gpiochip_remove(drvdata->gc);
Expand Down
35 changes: 0 additions & 35 deletions trunk/drivers/pinctrl/pinctrl-sirf.c
Original file line number Diff line number Diff line change
Expand Up @@ -1323,41 +1323,6 @@ static inline struct sirfsoc_gpio_bank *sirfsoc_gpio_to_bank(unsigned int gpio)
return &sgpio_bank[gpio / SIRFSOC_GPIO_BANK_SIZE];
}

void sirfsoc_gpio_set_pull(unsigned gpio, unsigned mode)
{
struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(gpio);
int idx = sirfsoc_gpio_to_offset(gpio);
u32 val, offset;
unsigned long flags;

offset = SIRFSOC_GPIO_CTRL(bank->id, idx);

spin_lock_irqsave(&sgpio_lock, flags);

val = readl(bank->chip.regs + offset);

switch (mode) {
case SIRFSOC_GPIO_PULL_NONE:
val &= ~SIRFSOC_GPIO_CTL_PULL_MASK;
break;
case SIRFSOC_GPIO_PULL_UP:
val |= SIRFSOC_GPIO_CTL_PULL_MASK;
val |= SIRFSOC_GPIO_CTL_PULL_HIGH;
break;
case SIRFSOC_GPIO_PULL_DOWN:
val |= SIRFSOC_GPIO_CTL_PULL_MASK;
val &= ~SIRFSOC_GPIO_CTL_PULL_HIGH;
break;
default:
break;
}

writel(val, bank->chip.regs + offset);

spin_unlock_irqrestore(&sgpio_lock, flags);
}
EXPORT_SYMBOL(sirfsoc_gpio_set_pull);

static inline struct sirfsoc_gpio_bank *sirfsoc_irqchip_to_bank(struct gpio_chip *chip)
{
return container_of(to_of_mm_gpio_chip(chip), struct sirfsoc_gpio_bank, chip);
Expand Down
2 changes: 0 additions & 2 deletions trunk/drivers/pinctrl/pinctrl-xway.c
Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,6 @@
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/platform_device.h>

#include "pinctrl-lantiq.h"
Expand Down
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