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2014-08-05Merge branch 'timers-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer and time updates from Thomas Gleixner: "A rather large update of timers, timekeeping & co - Core timekeeping code is year-2038 safe now for 32bit machines. Now we just need to fix all in kernel users and the gazillion of user space interfaces which rely on timespec/timeval :) - Better cache layout for the timekeeping internal data structures. - Proper nanosecond based interfaces for in kernel users. - Tree wide cleanup of code which wants nanoseconds but does hoops and loops to convert back and forth from timespecs. Some of it definitely belongs into the ugly code museum. - Consolidation of the timekeeping interface zoo. - A fast NMI safe accessor to clock monotonic for tracing. This is a long standing request to support correlated user/kernel space traces. With proper NTP frequency correction it's also suitable for correlation of traces accross separate machines. - Checkpoint/restart support for timerfd. - A few NOHZ[_FULL] improvements in the [hr]timer code. - Code move from kernel to kernel/time of all time* related code. - New clocksource/event drivers from the ARM universe. I'm really impressed that despite an architected timer in the newer chips SoC manufacturers insist on inventing new and differently broken SoC specific timers. [ Ed. "Impressed"? I don't think that word means what you think it means ] - Another round of code move from arch to drivers. Looks like most of the legacy mess in ARM regarding timers is sorted out except for a few obnoxious strongholds. - The usual updates and fixlets all over the place" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits) timekeeping: Fixup typo in update_vsyscall_old definition clocksource: document some basic timekeeping concepts timekeeping: Use cached ntp_tick_length when accumulating error timekeeping: Rework frequency adjustments to work better w/ nohz timekeeping: Minor fixup for timespec64->timespec assignment ftrace: Provide trace clocks monotonic timekeeping: Provide fast and NMI safe access to CLOCK_MONOTONIC seqcount: Add raw_write_seqcount_latch() seqcount: Provide raw_read_seqcount() timekeeping: Use tk_read_base as argument for timekeeping_get_ns() timekeeping: Create struct tk_read_base and use it in struct timekeeper timekeeping: Restructure the timekeeper some more clocksource: Get rid of cycle_last clocksource: Move cycle_last validation to core code clocksource: Make delta calculation a function wireless: ath9k: Get rid of timespec conversions drm: vmwgfx: Use nsec based interfaces drm: i915: Use nsec based interfaces timekeeping: Provide ktime_get_raw() hangcheck-timer: Use ktime_get_ns() ...
2014-08-04hwmon: (g762) Use of_property_read_u32 at appropriate placeAxel Lin
Simplify the code a bit and also improve readability. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (sis5595) Prevent overflow problem when writing large limitsAxel Lin
On platforms with sizeof(int) < sizeof(long), writing a temperature limit larger than MAXINT will result in unpredictable limit values written to the chip. Avoid auto-conversion from long to int to fix the problem. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (gpio-fan) Prevent overflow problem when writing large limitsAxel Lin
On platforms with sizeof(int) < sizeof(unsigned long), writing a rpm value larger than MAXINT will result in unpredictable limit values written to the chip. Avoid auto-conversion from unsigned long to int to fix the problem. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (ibmpowernv) Use of_property_read_u32 at appropriate placeAxel Lin
Simplify the code a bit and also improve readability. Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (lm85) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (lm85) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (lm78) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (max6697) Use of_property_read_bool at appropriate placesAxel Lin
This slightly improves readability. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (pwm-fan) Make SENSORS_PWM_FAN depend on OFAxel Lin
This driver won't instantiate if OF is not configured, thus add OF dependency. Also add COMPILE_TEST to increase build testing coverage. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (pwm-fan) Remove duplicate dev_set_drvdata callAxel Lin
The dev_set_drvdata() call is equivalent to the platform_set_drvdata() call in next line. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (nct6775) Remove num_attr_groups from struct nct6775_dataAxel Lin
num_attr_groups is only used in nct6775_probe(), make it to be local variable. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (nct6775) Update module description and Kconfig for NCT6106D and NCT6791DAxel Lin
This driver also supports NCT6106D and NCT6791D, thus update module description and Kconfig accordingly. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adt7411) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (g762) Convert to hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and hwmon_device_register_with_groups() to simplify the code a bit. Use hwmon_device_register_with_groups rather than the device managed version to ensure g762_of_clock_disable() is called after hwmon_device_unregister(). Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (emc2103) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (smsc47m1) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (smsc47m192) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (smsc47m192) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (max1668) Make max1668_addr_list array constAxel Lin
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (max6639) Make normal_i2c array constAxel Lin
Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (thmc50) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (thmc50) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adt7470) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adt7470) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adt7462) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adt7462) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: Add pwm-fan driverKamil Debski
The pwm-fan driver enables control of fans connected to PWM lines. This driver uses the PWM framework, so it is compatible with all PWM devices that provide drivers through the PWM framework. Signed-off-by: Kamil Debski <k.debski@samsung.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Reviewed-by: Tobias Klauser <tklauser@distanz.ch> [Guenter Roeck: Last argument to devm_of_pwm_get is pointer, use NULL] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (asc7621) Make map tables constAxel Lin
Map tables are never changed, so it is safe to make them const. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: George Joseph <george.joseph@fairview5.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (ds620) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (max16065) Use PTR_ERR_OR_ZEROAxel Lin
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (sht21) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (fam15h_power) Remove needless pci dev idAravind Gopalakrishnan
PCI_DEVICE_ID_AMD_16H_NB_F4 can be obtained from it's definition in pci_ids.h. So we don't have to define it again here. Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and ↵Neelesh Gupta
temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (pmbus) Add tps40422 front-end driverZhu, Richard \(NSN - CN/Beijing\)
For TI power management chip TPS40422, READ_TEMPERATURE_2 command is supported on page 1 of the chip, but the original driver(pmbus.c) only tried to detect this command on page 0, this will lead to a result that the temperature sensor in page 1 couldn't be detected. This change is to isolate the tps40422 driver from pmbus.c into a solo front-end driver. Signed-off-by: Zhu Laiwen <richard.zhu@nsn.com> [Guenter Roeck: Dropped unnecessary license text (fixes checkpatch warning)] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (tmp421) Drop FSF mailing addressGuenter Roeck
The FSF mailing address can and will change over time, so drop it. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-08-04hwmon: (tmp421) Add support for TMP441 and TMP442Guenter Roeck
TMP441 and TMP442 are compatible to TMP421 and TMP422. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-08-04hwmon: (tmp421) Strengthen detect functionGuenter Roeck
Not all supported chips support the entire I2C address range. Only accept specific chips at the addresses supported by that chip. Check for invalid values in conversion rate and status registers. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-08-04hwmon: (g760a) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (g760a) Avoid forward declarationAxel Lin
Move g760a_driver to proper place to avoid forward declaration. Also move g760a_id table close to g760a_driver. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adm9240) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (lineage-pem) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (smm665) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adm9240) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adm1031) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adm1031) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adm1026) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adm1026) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adm1025) Convert to devm_hwmon_device_register_with_groupsAxel Lin
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04hwmon: (adm1025) Avoid forward declarationAxel Lin
Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>