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Driver core pull for 3.5-rc1

Browse source 
Here's the driver core, and other driver subsystems, pull request for
 the 3.5-rc1 merge window.
 
 Outside of a few minor driver core changes, we ended up with the
 following different subsystem and core changes as well, due to
 interdependancies on the driver core:
  - hyperv driver updates
  - drivers/memory being created and some drivers moved into it
  - extcon driver subsystem created out of the old Android staging switch
    driver code
  - dynamic debug updates
  - printk rework, and /dev/kmsg changes
 
 All of this has been tested in the linux-next releases for a few weeks
 with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg Kroah-Hartman:
 "Here's the driver core, and other driver subsystems, pull request for
  the 3.5-rc1 merge window.

  Outside of a few minor driver core changes, we ended up with the
  following different subsystem and core changes as well, due to
  interdependancies on the driver core:
   - hyperv driver updates
   - drivers/memory being created and some drivers moved into it
   - extcon driver subsystem created out of the old Android staging
     switch driver code
   - dynamic debug updates
   - printk rework, and /dev/kmsg changes

  All of this has been tested in the linux-next releases for a few weeks
  with no reported problems.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed
that a patch to the deleted drivers/misc/max8997-muic.c driver needs to
be applied to this one.

* tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits)
  uio_pdrv_genirq: get irq through platform resource if not set otherwise
  memory: tegra{20,30}-mc: Remove empty *_remove()
  printk() - isolate KERN_CONT users from ordinary complete lines
  sysfs: get rid of some lockdep false positives
  Drivers: hv: util: Properly handle version negotiations.
  Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp()
  memory: tegra{20,30}-mc: Use dev_err_ratelimited()
  driver core: Add dev_*_ratelimited() family
  Driver Core: don't oops with unregistered driver in driver_find_device()
  printk() - restore prefix/timestamp printing for multi-newline strings
  printk: add stub for prepend_timestamp()
  ARM: tegra30: Make MC optional in Kconfig
  ARM: tegra20: Make MC optional in Kconfig
  ARM: tegra30: MC: Remove unnecessary BUG*()
  ARM: tegra20: MC: Remove unnecessary BUG*()
  printk: correctly align __log_buf
  ARM: tegra30: Add Tegra Memory Controller(MC) driver
  ARM: tegra20: Add Tegra Memory Controller(MC) driver
  printk() - restore timestamp printing at console output
  printk() - do not merge continuation lines of different threads
  ...
This commit is contained in:
Linus Torvalds 2012-05-22 16:02:13 -07:00
commit 5d4e2d08e7
79 changed files with 6980 additions and 1309 deletions
Download patch file Download diff file Expand all files Collapse all files

34
include/linux/device.h
View file

@ -23,6 +23,7 @@
#include <linux/mutex.h>
#include <linux/pm.h>
#include <linux/atomic.h>
#include <linux/ratelimit.h>
#include <asm/device.h>
struct device;
@ -502,7 +503,10 @@ ssize_t device_store_int(struct device *dev, struct device_attribute *attr,
{ __ATTR(_name, _mode, device_show_ulong, device_store_ulong), &(_var) }
#define DEVICE_INT_ATTR(_name, _mode, _var) \
struct dev_ext_attribute dev_attr_##_name = \
{ __ATTR(_name, _mode, device_show_ulong, device_store_ulong), &(_var) }
{ __ATTR(_name, _mode, device_show_int, device_store_int), &(_var) }
#define DEVICE_ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) \
struct device_attribute dev_attr_##_name = \
__ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store)
extern int device_create_file(struct device *device,
const struct device_attribute *entry);
@ -541,6 +545,8 @@ extern void *devres_remove(struct device *dev, dr_release_t release,
dr_match_t match, void *match_data);
extern int devres_destroy(struct device *dev, dr_release_t release,
dr_match_t match, void *match_data);
extern int devres_release(struct device *dev, dr_release_t release,
dr_match_t match, void *match_data);
/* devres group */
extern void * __must_check devres_open_group(struct device *dev, void *id,
@ -931,6 +937,32 @@ int _dev_info(const struct device *dev, const char *fmt, ...)
#endif
#define dev_level_ratelimited(dev_level, dev, fmt, ...) \
do { \
static DEFINE_RATELIMIT_STATE(_rs, \
DEFAULT_RATELIMIT_INTERVAL, \
DEFAULT_RATELIMIT_BURST); \
if (__ratelimit(&_rs)) \
dev_level(dev, fmt, ##__VA_ARGS__); \
} while (0)
#define dev_emerg_ratelimited(dev, fmt, ...) \
dev_level_ratelimited(dev_emerg, dev, fmt, ##__VA_ARGS__)
#define dev_alert_ratelimited(dev, fmt, ...) \
dev_level_ratelimited(dev_alert, dev, fmt, ##__VA_ARGS__)
#define dev_crit_ratelimited(dev, fmt, ...) \
dev_level_ratelimited(dev_crit, dev, fmt, ##__VA_ARGS__)
#define dev_err_ratelimited(dev, fmt, ...) \
dev_level_ratelimited(dev_err, dev, fmt, ##__VA_ARGS__)
#define dev_warn_ratelimited(dev, fmt, ...) \
dev_level_ratelimited(dev_warn, dev, fmt, ##__VA_ARGS__)
#define dev_notice_ratelimited(dev, fmt, ...) \
dev_level_ratelimited(dev_notice, dev, fmt, ##__VA_ARGS__)
#define dev_info_ratelimited(dev, fmt, ...) \
dev_level_ratelimited(dev_info, dev, fmt, ##__VA_ARGS__)
#define dev_dbg_ratelimited(dev, fmt, ...) \
dev_level_ratelimited(dev_dbg, dev, fmt, ##__VA_ARGS__)
/*
* Stupid hackaround for existing uses of non-printk uses dev_info
*

22
include/linux/dynamic_debug.h
View file

@ -17,8 +17,8 @@ struct _ddebug {
const char *format;
unsigned int lineno:18;
/*
* The flags field controls the behaviour at the callsite.
* The bits here are changed dynamically when the user
* The flags field controls the behaviour at the callsite.
* The bits here are changed dynamically when the user
* writes commands to <debugfs>/dynamic_debug/control
*/
#define _DPRINTK_FLAGS_NONE 0
@ -44,6 +44,9 @@ extern int ddebug_remove_module(const char *mod_name);
extern __printf(2, 3)
int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
extern int ddebug_dyndbg_module_param_cb(char *param, char *val,
const char *modname);
struct device;
extern __printf(3, 4)
@ -94,11 +97,26 @@ do { \
#else
#include <linux/string.h>
#include <linux/errno.h>
static inline int ddebug_remove_module(const char *mod)
{
return 0;
}
static inline int ddebug_dyndbg_module_param_cb(char *param, char *val,
const char *modname)
{
if (strstr(param, "dyndbg")) {
/* avoid pr_warn(), which wants pr_fmt() fully defined */
printk(KERN_WARNING "dyndbg param is supported only in "
"CONFIG_DYNAMIC_DEBUG builds\n");
return 0; /* allow and ignore */
}
return -EINVAL;
}
#define dynamic_pr_debug(fmt, ...) \
do { if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); } while (0)
#define dynamic_dev_dbg(dev, fmt, ...) \

324
include/linux/extcon.h Normal file
View file

@ -0,0 +1,324 @@
/*
* External connector (extcon) class driver
*
* Copyright (C) 2012 Samsung Electronics
* Author: Donggeun Kim <dg77.kim@samsung.com>
* Author: MyungJoo Ham <myungjoo.ham@samsung.com>
*
* based on switch class driver
* Copyright (C) 2008 Google, Inc.
* Author: Mike Lockwood <lockwood@android.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __LINUX_EXTCON_H__
#define __LINUX_EXTCON_H__
#include <linux/notifier.h>
#define SUPPORTED_CABLE_MAX 32
#define CABLE_NAME_MAX 30
/*
* The standard cable name is to help support general notifier
* and notifee device drivers to share the common names.
* Please use standard cable names unless your notifier device has
* a very unique and abnormal cable or
* the cable type is supposed to be used with only one unique
* pair of notifier/notifee devices.
*
* Please add any other "standard" cables used with extcon dev.
*
* You may add a dot and number to specify version or specification
* of the specific cable if it is required. (e.g., "Fast-charger.18"
* and "Fast-charger.10" for 1.8A and 1.0A chargers)
* However, the notifee and notifier should be able to handle such
* string and if the notifee can negotiate the protocol or idenify,
* you don't need such convention. This convention is helpful when
* notifier can distinguish but notifiee cannot.
*/
enum extcon_cable_name {
EXTCON_USB = 0,
EXTCON_USB_HOST,
EXTCON_TA, /* Travel Adaptor */
EXTCON_FAST_CHARGER,
EXTCON_SLOW_CHARGER,
EXTCON_CHARGE_DOWNSTREAM, /* Charging an external device */
EXTCON_HDMI,
EXTCON_MHL,
EXTCON_DVI,
EXTCON_VGA,
EXTCON_DOCK,
EXTCON_LINE_IN,
EXTCON_LINE_OUT,
EXTCON_MIC_IN,
EXTCON_HEADPHONE_OUT,
EXTCON_SPDIF_IN,
EXTCON_SPDIF_OUT,
EXTCON_VIDEO_IN,
EXTCON_VIDEO_OUT,
EXTCON_MECHANICAL,
};
extern const char *extcon_cable_name[];
struct extcon_cable;
/**
* struct extcon_dev - An extcon device represents one external connector.
* @name The name of this extcon device. Parent device name is used
* if NULL.
* @supported_cable Array of supported cable name ending with NULL.
* If supported_cable is NULL, cable name related APIs
* are disabled.
* @mutually_exclusive Array of mutually exclusive set of cables that cannot
* be attached simultaneously. The array should be
* ending with NULL or be NULL (no mutually exclusive
* cables). For example, if it is { 0x7, 0x30, 0}, then,
* {0, 1}, {0, 1, 2}, {0, 2}, {1, 2}, or {4, 5} cannot
* be attached simulataneously. {0x7, 0} is equivalent to
* {0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
* can be no simultaneous connections.
* @print_name An optional callback to override the method to print the
* name of the extcon device.
* @print_state An optional callback to override the method to print the
* status of the extcon device.
* @dev Device of this extcon. Do not provide at register-time.
* @state Attach/detach state of this extcon. Do not provide at
* register-time
* @nh Notifier for the state change events from this extcon
* @entry To support list of extcon devices so that uses can search
* for extcon devices based on the extcon name.
* @lock
* @max_supported Internal value to store the number of cables.
* @extcon_dev_type Device_type struct to provide attribute_groups
* customized for each extcon device.
* @cables Sysfs subdirectories. Each represents one cable.
*
* In most cases, users only need to provide "User initializing data" of
* this struct when registering an extcon. In some exceptional cases,
* optional callbacks may be needed. However, the values in "internal data"
* are overwritten by register function.
*/
struct extcon_dev {
/* --- Optional user initializing data --- */
const char *name;
const char **supported_cable;
const u32 *mutually_exclusive;
/* --- Optional callbacks to override class functions --- */
ssize_t (*print_name)(struct extcon_dev *edev, char *buf);
ssize_t (*print_state)(struct extcon_dev *edev, char *buf);
/* --- Internal data. Please do not set. --- */
struct device *dev;
u32 state;
struct raw_notifier_head nh;
struct list_head entry;
spinlock_t lock; /* could be called by irq handler */
int max_supported;
/* /sys/class/extcon/.../cable.n/... */
struct device_type extcon_dev_type;
struct extcon_cable *cables;
/* /sys/class/extcon/.../mutually_exclusive/... */
struct attribute_group attr_g_muex;
struct attribute **attrs_muex;
struct device_attribute *d_attrs_muex;
};
/**
* struct extcon_cable - An internal data for each cable of extcon device.
* @edev The extcon device
* @cable_index Index of this cable in the edev
* @attr_g Attribute group for the cable
* @attr_name "name" sysfs entry
* @attr_state "state" sysfs entry
* @attrs Array pointing to attr_name and attr_state for attr_g
*/
struct extcon_cable {
struct extcon_dev *edev;
int cable_index;
struct attribute_group attr_g;
struct device_attribute attr_name;
struct device_attribute attr_state;
struct attribute *attrs[3]; /* to be fed to attr_g.attrs */
};
/**
* struct extcon_specific_cable_nb - An internal data for
* extcon_register_interest().
* @internal_nb a notifier block bridging extcon notifier and cable notifier.
* @user_nb user provided notifier block for events from a specific cable.
* @cable_index the target cable.
* @edev the target extcon device.
* @previous_value the saved previous event value.
*/
struct extcon_specific_cable_nb {
struct notifier_block internal_nb;
struct notifier_block *user_nb;
int cable_index;
struct extcon_dev *edev;
unsigned long previous_value;
};
#if IS_ENABLED(CONFIG_EXTCON)
/*
* Following APIs are for notifiers or configurations.
* Notifiers are the external port and connection devices.
*/
extern int extcon_dev_register(struct extcon_dev *edev, struct device *dev);
extern void extcon_dev_unregister(struct extcon_dev *edev);
extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
/*
* get/set/update_state access the 32b encoded state value, which represents
* states of all possible cables of the multistate port. For example, if one
* calls extcon_set_state(edev, 0x7), it may mean that all the three cables
* are attached to the port.
*/
static inline u32 extcon_get_state(struct extcon_dev *edev)
{
return edev->state;
}
extern int extcon_set_state(struct extcon_dev *edev, u32 state);
extern int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state);
/*
* get/set_cable_state access each bit of the 32b encoded state value.
* They are used to access the status of each cable based on the cable_name
* or cable_index, which is retrived by extcon_find_cable_index
*/
extern int extcon_find_cable_index(struct extcon_dev *sdev,
const char *cable_name);
extern int extcon_get_cable_state_(struct extcon_dev *edev, int cable_index);
extern int extcon_set_cable_state_(struct extcon_dev *edev, int cable_index,
bool cable_state);
extern int extcon_get_cable_state(struct extcon_dev *edev,
const char *cable_name);
extern int extcon_set_cable_state(struct extcon_dev *edev,
const char *cable_name, bool cable_state);
/*
* Following APIs are for notifiees (those who want to be notified)
* to register a callback for events from a specific cable of the extcon.
* Notifiees are the connected device drivers wanting to get notified by
* a specific external port of a connection device.
*/
extern int extcon_register_interest(struct extcon_specific_cable_nb *obj,
const char *extcon_name,
const char *cable_name,
struct notifier_block *nb);
extern int extcon_unregister_interest(struct extcon_specific_cable_nb *nb);
/*
* Following APIs are to monitor every action of a notifier.
* Registerer gets notified for every external port of a connection device.
* Probably this could be used to debug an action of notifier; however,
* we do not recommend to use this at normal 'notifiee' device drivers who
* want to be notified by a specific external port of the notifier.
*/
extern int extcon_register_notifier(struct extcon_dev *edev,
struct notifier_block *nb);
extern int extcon_unregister_notifier(struct extcon_dev *edev,
struct notifier_block *nb);
#else /* CONFIG_EXTCON */
static inline int extcon_dev_register(struct extcon_dev *edev,
struct device *dev)
{
return 0;
}
static inline void extcon_dev_unregister(struct extcon_dev *edev) { }
static inline u32 extcon_get_state(struct extcon_dev *edev)
{
return 0;
}
static inline int extcon_set_state(struct extcon_dev *edev, u32 state)
{
return 0;
}
static inline int extcon_update_state(struct extcon_dev *edev, u32 mask,
u32 state)
{
return 0;
}
static inline int extcon_find_cable_index(struct extcon_dev *edev,
const char *cable_name)
{
return 0;
}
static inline int extcon_get_cable_state_(struct extcon_dev *edev,
int cable_index)
{
return 0;
}
static inline int extcon_set_cable_state_(struct extcon_dev *edev,
int cable_index, bool cable_state)
{
return 0;
}
static inline int extcon_get_cable_state(struct extcon_dev *edev,
const char *cable_name)
{
return 0;
}
static inline int extcon_set_cable_state(struct extcon_dev *edev,
const char *cable_name, int state)
{
return 0;
}
static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name)
{
return NULL;
}
static inline int extcon_register_notifier(struct extcon_dev *edev,
struct notifier_block *nb)
{
return 0;
}
static inline int extcon_unregister_notifier(struct extcon_dev *edev,
struct notifier_block *nb)
{
return 0;
}
static inline int extcon_register_interest(struct extcon_specific_cable_nb *obj,
const char *extcon_name,
const char *cable_name,
struct notifier_block *nb)
{
return 0;
}
static inline int extcon_unregister_interest(struct extcon_specific_cable_nb
*obj)
{
return 0;
}
#endif /* CONFIG_EXTCON */
#endif /* __LINUX_EXTCON_H__ */

52
include/linux/extcon/extcon_gpio.h Normal file
View file

@ -0,0 +1,52 @@
/*
* External connector (extcon) class generic GPIO driver
*
* Copyright (C) 2012 Samsung Electronics
* Author: MyungJoo Ham <myungjoo.ham@samsung.com>
*
* based on switch class driver
* Copyright (C) 2008 Google, Inc.
* Author: Mike Lockwood <lockwood@android.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __EXTCON_GPIO_H__
#define __EXTCON_GPIO_H__ __FILE__
#include <linux/extcon.h>
/**
* struct gpio_extcon_platform_data - A simple GPIO-controlled extcon device.
* @name The name of this GPIO extcon device.
* @gpio Corresponding GPIO.
* @debounce Debounce time for GPIO IRQ in ms.
* @irq_flags IRQ Flags (e.g., IRQF_TRIGGER_LOW).
* @state_on print_state is overriden with state_on if attached. If Null,
* default method of extcon class is used.
* @state_off print_state is overriden with state_on if dettached. If Null,
* default method of extcon class is used.
*
* Note that in order for state_on or state_off to be valid, both state_on
* and state_off should be not NULL. If at least one of them is NULL,
* the print_state is not overriden.
*/
struct gpio_extcon_platform_data {
const char *name;
unsigned gpio;
unsigned long debounce;
unsigned long irq_flags;
/* if NULL, "0" or "1" will be printed */
const char *state_on;
const char *state_off;
};
#endif /* __EXTCON_GPIO_H__ */

4
include/linux/hyperv.h
View file

@ -1062,8 +1062,10 @@ struct hyperv_service_callback {
void (*callback) (void *context);
};
#define MAX_SRV_VER 0x7ffffff
extern void vmbus_prep_negotiate_resp(struct icmsg_hdr *,
struct icmsg_negotiate *, u8 *);
struct icmsg_negotiate *, u8 *, int,
int);
int hv_kvp_init(struct hv_util_service *);
void hv_kvp_deinit(void);

23
include/linux/mfd/max8997.h
View file

@ -99,34 +99,11 @@ struct max8997_muic_reg_data {
/**
* struct max8997_muic_platform_data
* @usb_callback: callback function for USB
* inform callee of USB type (HOST or DEVICE)
* and attached state(true or false)
* @charger_callback: callback function for charger
* inform callee of charger_type
* and attached state(true or false)
* @deskdock_callback: callback function for desk dock
* inform callee of attached state(true or false)
* @cardock_callback: callback function for car dock
* inform callee of attached state(true or false)
* @mhl_callback: callback function for MHL (Mobile High-definition Link)
* inform callee of attached state(true or false)
* @uart_callback: callback function for JIG UART
* inform callee of attached state(true or false)
* @init_data: array of max8997_muic_reg_data
* used for initializing registers of MAX8997 MUIC device
* @num_init_data: array size of init_data
*/
struct max8997_muic_platform_data {
void (*usb_callback)(enum max8997_muic_usb_type usb_type,
bool attached);
void (*charger_callback)(bool attached,
enum max8997_muic_charger_type charger_type);
void (*deskdock_callback) (bool attached);
void (*cardock_callback) (bool attached);
void (*mhl_callback) (bool attached);
void (*uart_callback) (bool attached);
struct max8997_muic_reg_data *init_data;
int num_init_data;
};

3
include/linux/moduleparam.h
View file

@ -320,7 +320,8 @@ extern int parse_args(const char *name,
unsigned num,
s16 level_min,
s16 level_max,
int (*unknown)(char *param, char *val));
int (*unknown)(char *param, char *val,
const char *doing));
/* Called by module remove. */
#ifdef CONFIG_SYSFS

128
include/linux/platform_data/emif_plat.h Normal file
View file

@ -0,0 +1,128 @@
/*
* Definitions for TI EMIF device platform data
*
* Copyright (C) 2012 Texas Instruments, Inc.
*
* Aneesh V <aneesh@ti.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __EMIF_PLAT_H
#define __EMIF_PLAT_H
/* Low power modes - EMIF_PWR_MGMT_CTRL */
#define EMIF_LP_MODE_DISABLE 0
#define EMIF_LP_MODE_CLOCK_STOP 1
#define EMIF_LP_MODE_SELF_REFRESH 2
#define EMIF_LP_MODE_PWR_DN 4
/* Hardware capabilities */
#define EMIF_HW_CAPS_LL_INTERFACE 0x00000001
/*
* EMIF IP Revisions
* EMIF4D - Used in OMAP4
* EMIF4D5 - Used in OMAP5
*/
#define EMIF_4D 1
#define EMIF_4D5 2
/*
* PHY types
* ATTILAPHY - Used in OMAP4
* INTELLIPHY - Used in OMAP5
*/
#define EMIF_PHY_TYPE_ATTILAPHY 1
#define EMIF_PHY_TYPE_INTELLIPHY 2
/* Custom config requests */
#define EMIF_CUSTOM_CONFIG_LPMODE 0x00000001
#define EMIF_CUSTOM_CONFIG_TEMP_ALERT_POLL_INTERVAL 0x00000002
#ifndef __ASSEMBLY__
/**
* struct ddr_device_info - All information about the DDR device except AC
* timing parameters
* @type: Device type (LPDDR2-S4, LPDDR2-S2 etc)
* @density: Device density
* @io_width: Bus width
* @cs1_used: Whether there is a DDR device attached to the second
* chip-select(CS1) of this EMIF instance
* @cal_resistors_per_cs: Whether there is one calibration resistor per
* chip-select or whether it's a single one for both
* @manufacturer: Manufacturer name string
*/
struct ddr_device_info {
u32 type;
u32 density;
u32 io_width;
u32 cs1_used;
u32 cal_resistors_per_cs;
char manufacturer[10];
};
/**
* struct emif_custom_configs - Custom configuration parameters/policies
* passed from the platform layer
* @mask: Mask to indicate which configs are requested
* @lpmode: LPMODE to be used in PWR_MGMT_CTRL register
* @lpmode_timeout_performance: Timeout before LPMODE entry when higher
* performance is desired at the cost of power (typically
* at higher OPPs)
* @lpmode_timeout_power: Timeout before LPMODE entry when better power
* savings is desired and performance is not important
* (typically at lower loads indicated by lower OPPs)
* @lpmode_freq_threshold: The DDR frequency threshold to identify between
* the above two cases:
* timeout = (freq >= lpmode_freq_threshold) ?
* lpmode_timeout_performance :
* lpmode_timeout_power;
* @temp_alert_poll_interval_ms: LPDDR2 MR4 polling interval at nominal
* temperature(in milliseconds). When temperature is high
* polling is done 4 times as frequently.
*/
struct emif_custom_configs {
u32 mask;
u32 lpmode;
u32 lpmode_timeout_performance;
u32 lpmode_timeout_power;
u32 lpmode_freq_threshold;
u32 temp_alert_poll_interval_ms;
};
/**
* struct emif_platform_data - Platform data passed on EMIF platform
* device creation. Used by the driver.
* @hw_caps: Hw capabilities of the EMIF IP in the respective SoC
* @device_info: Device info structure containing information such
* as type, bus width, density etc
* @timings: Timings information from device datasheet passed
* as an array of 'struct lpddr2_timings'. Can be NULL
* if if default timings are ok
* @timings_arr_size: Size of the timings array. Depends on the number
* of different frequencies for which timings data
* is provided
* @min_tck: Minimum value of some timing parameters in terms
* of number of cycles. Can be NULL if default values
* are ok
* @custom_configs: Custom configurations requested by SoC or board
* code and the data for them. Can be NULL if default
* configurations done by the driver are ok. See
* documentation for 'struct emif_custom_configs' for
* more details
*/
struct emif_platform_data {
u32 hw_caps;
struct ddr_device_info *device_info;
const struct lpddr2_timings *timings;
u32 timings_arr_size;
const struct lpddr2_min_tck *min_tck;
struct emif_custom_configs *custom_configs;
u32 ip_rev;
u32 phy_type;
};
#endif /* __ASSEMBLY__ */
#endif /* __LINUX_EMIF_H */

13
include/linux/printk.h
View file

@ -95,8 +95,19 @@ extern int printk_needs_cpu(int cpu);
extern void printk_tick(void);
#ifdef CONFIG_PRINTK
asmlinkage __printf(5, 0)
int vprintk_emit(int facility, int level,
const char *dict, size_t dictlen,
const char *fmt, va_list args);
asmlinkage __printf(1, 0)
int vprintk(const char *fmt, va_list args);
asmlinkage __printf(5, 6) __cold
asmlinkage int printk_emit(int facility, int level,
const char *dict, size_t dictlen,
const char *fmt, ...);
asmlinkage __printf(1, 2) __cold
int printk(const char *fmt, ...);
@ -289,6 +300,8 @@ extern void dump_stack(void) __cold;
no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#endif
extern const struct file_operations kmsg_fops;
enum {
DUMP_PREFIX_NONE,
DUMP_PREFIX_ADDRESS,

12
include/linux/sysfs.h
View file

@ -27,6 +27,7 @@ struct attribute {
const char *name;
umode_t mode;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
bool ignore_lockdep:1;
struct lock_class_key *key;
struct lock_class_key skey;
#endif
@ -80,6 +81,17 @@ struct attribute_group {
#define __ATTR_NULL { .attr = { .name = NULL } }
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define __ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) { \
.attr = {.name = __stringify(_name), .mode = _mode, \
.ignore_lockdep = true }, \
.show = _show, \
.store = _store, \
}
#else
#define __ATTR_IGNORE_LOCKDEP __ATTR
#endif
#define attr_name(_attr) (_attr).attr.name
struct file;