Commit graph

578098 commits

Author SHA1 Message Date
Laxman Dewangan
f3937549a9 rtc: max77686: move initialisation of rtc regmap, irq chip locally
To make RTC block of MAX77686/MAX77802 as independent driver,
move the registration of i2c device, regmap for register access
and irq_chip for interrupt support inside the RTC driver.
Removed the same initialisation from MFD driver.

Having this change will allow to reuse this driver for different
PMIC/devices from Maxim Semiconductor if they kept same RTC IP on
different PMIC. Some of examples as PMIC MAX77620, MAX20024 where
same RTC IP used and hence driver for these chips will use this
driver only for RTC support.

Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:13 +01:00
Laxman Dewangan
08e37ef17d mfd: max77686: do not set i2c client data for rtc i2c client
There is different RTC I2C address for RTC block in MAX77686.
Driver is creating dummy i2c client for this address to access
the register of this IP block.

As there is no call to i2c_get_clientdata() for rtc_i2c client,
there is no need to store pointer and hence removing the call
to set client data for rtc i2c client.

Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:12 +01:00
Laxman Dewangan
f604c48849 rtc: max77686: avoid reference of parent device info multiple places
Get rid of referring parent device info for register access
all the places by making regmap as part of max77686 rtc
device info. This will also remove the need of storing parent
device info in max77686 rtc device info as this is no more required.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:12 +01:00
Laxman Dewangan
69be249ab4 rtc: max77686: use rtc regmap to access RTC registers
rtc_regmap should be used to access all RTC registers instead
of parent regmap regardless of what chip or property have it.

This makes the register access uniform and extendible for other
chips.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:11 +01:00
Laxman Dewangan
0b4f8b085b rtc: max77686: fix checkpatch error
Fix following check patch error in rtc-max77686 driver:
- Alignment should match open parenthesis.
- braces {} should be used on all arms of this statement.
- Prefer using the BIT macro

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:11 +01:00
Andre Przywara
2863934e23 rtc: allow compilation of sun6i RTC for all sunxi SoCs
At the moment the "sun6i" RTC drivers depends on having two specific
SoC families selected.
The Allwinner A64 SoC has the same RTC, so extend the Kconfig option
to allow inclusion of the driver for all Allwinner SoCs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:10 +01:00
Steffen Trumtrar
68298c2dac rtc: add driver for RX6110SA real time clock
The RX6110 comes in two different variants: SPI and I2C.
This driver only supports the SPI variant.

If the need ever arises to also support the I2C variant, this driver
could easily be refactored to support both cases.

Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:10 +01:00
Steffen Trumtrar
cfe941628a Documentation: devicetree: add epson rx6110 binding
Add the binding documentation for the Epson RX6110 RTC.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:09 +01:00
Joshua Clayton
f07fa9242e rtc: pcf2123: avoid resetting the clock if possible
pcf2123 data sheet recommends a software reset when the chip
is first powered on. This change avoids resetting the chip
every time the driver is loaded, which has some negative effects.

There are several registers including a clock rate adjustment that really
should survive a reload of the driver (or reboot).

In addition, stopping and restarting the clock to verify the chip is
there is not a good thing once the time is set.

According to the data sheet, the seconds register has a 1 in
the high bit when the voltage has gotten low. We check for this
condition, as well as whether the time retrieved from the chip is
valid. We reset the rtc only if the time is not reliable and valid.
This is sufficient for checking for the presence of the chip,
as either all zeros or all 0xff will result in an invalid time/date

Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:04 +01:00
Joshua Clayton
1e094b946c rtc: pcf2123: refactor chip reset into a function
Refactor chip reset items into its own function, isolating it from
the rest of the device probe.
Subsequent commits will avoid calling this code.

Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:07:58 +01:00
Joshua Clayton
809b453b76 rtc: pcf2123: clean up writes to the rtc chip
Add new functions pcf2123_write(), and pcf2123_write_reg().
Use named defines for the values being written.

This improves modularity and readability, and reduces lines of code.

Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:07:53 +01:00
Joshua Clayton
66c056d6a1 rtc: pcf2123: clean up reads from the chip
Put read operations into a function.
This improves modularity and readability.

Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:07:48 +01:00
Joshua Clayton
245cb74be6 rtc: pcf2123: define registers and bit macros
Add defines for all 16 registers in the pcf2123.
Add defines for useful bits from several registers
I've tried to document all the registers, and
as best as possible, all the special bits they employ

Use BIT() wherever possible in the bit definitions

Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:07:40 +01:00
Sebastian Ott
80c544ded2 s390/pci: enforce fmb page boundary rule
The function measurement block must not cross a page boundary. Ensure
that by raising the alignment requirement to the smallest power of 2
larger than the size of the fmb.

Fixes: d0b088531 ("s390/pci: performance statistics and debug infrastructure")
Cc: stable@vger.kernel.org # v3.8+
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-03-14 16:19:09 +01:00
Hannes Reinecke
c988cabe25 iscsi_ibft: Add prefix-len attr and display netmask
The iBFT table only specifies a prefix length, not a netmask.
And the netmask is pretty much pointless for IPv6.
So introduce a new attribute 'prefix-len'.

Some older user-space code might rely on the netmask attribute
being present, so we should always display it.

Changes from v1:
 - Combined two patches into one

Changes from v2:
 - Cleaned up/corrected wording for patch description

v3: [Put Hannes back as author]

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
2016-03-14 10:30:57 -04:00
Rafael J. Wysocki
0d571b62dd Merge branch 'pm-tools'
* pm-tools:
  tools/power turbostat: bugfix: TDP MSRs print bits fixing
  tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump
  tools/power turbostat: call __cpuid() instead of __get_cpuid()
  tools/power turbostat: indicate SMX and SGX support
  tools/power turbostat: detect and work around syscall jitter
  tools/power turbostat: show GFX%rc6
  tools/power turbostat: show GFXMHz
  tools/power turbostat: show IRQs per CPU
  tools/power turbostat: make fewer systems calls
  tools/power turbostat: fix compiler warnings
  tools/power turbostat: add --out option for saving output in a file
  tools/power turbostat: re-name "%Busy" field to "Busy%"
  tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding
  tools/power turbostat: Intel Xeon x200: fix erroneous bclk value
  tools/power turbostat: allow sub-sec intervals
  tools/power turbostat: Decode MSR_MISC_PWR_MGMT
  tools/power turbostat: decode HWP registers
  x86 msr-index: Simplify syntax for HWP fields
  tools/power turbostat: CPUID(0x16) leaf shows base, max, and bus frequency
  tools/power turbostat: decode more CPUID fields
2016-03-14 14:22:34 +01:00
Rafael J. Wysocki
93dffd03b3 Merge branches 'pm-cpuidle', 'pm-sleep' and 'pm-domains'
* pm-cpuidle:
  cpuidle: menu: help gcc generate slightly better code
  cpuidle: menu: avoid expensive square root computation

* pm-sleep:
  PM / suspend: replacing printk
  PM/freezer: y2038, use boottime to compare tstamps
  PM / sleep: declare __tracedata symbols as char[] rather than char

* pm-domains:
  PM / Domains: Fix potential NULL pointer dereference
  PM / Domains: Fix removal of a subdomain
  PM / Domains: Propagate start and restore errors during runtime resume
  PM / Domains: Join state name and index in debugfs output
  PM / Domains: Restore alignment of slaves in debugfs output
  PM / Domains: remove old power on/off latencies
  ARM: imx6: pm: declare pm domain latency on power_state struct
  PM / Domains: Support for multiple states
2016-03-14 14:22:22 +01:00
Rafael J. Wysocki
4ed3900427 Merge branch 'pm-cpufreq'
* pm-cpufreq: (94 commits)
  intel_pstate: Do not skip samples partially
  intel_pstate: Remove freq calculation from intel_pstate_calc_busy()
  intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance()
  intel_pstate: Optimize calculation for max/min_perf_adj
  intel_pstate: Remove extra conversions in pid calculation
  cpufreq: Move scheduler-related code to the sched directory
  Revert "cpufreq: postfix policy directory with the first CPU in related_cpus"
  cpufreq: Reduce cpufreq_update_util() overhead a bit
  cpufreq: Select IRQ_WORK if CPU_FREQ_GOV_COMMON is set
  cpufreq: Remove 'policy->governor_enabled'
  cpufreq: Rename __cpufreq_governor() to cpufreq_governor()
  cpufreq: Relocate handle_update() to kill its declaration
  cpufreq: governor: Drop unnecessary checks from show() and store()
  cpufreq: governor: Fix race in dbs_update_util_handler()
  cpufreq: governor: Make gov_set_update_util() static
  cpufreq: governor: Narrow down the dbs_data_mutex coverage
  cpufreq: governor: Make dbs_data_mutex static
  cpufreq: governor: Relocate definitions of tuners structures
  cpufreq: governor: Move per-CPU data to the common code
  cpufreq: governor: Make governor private data per-policy
  ...
2016-03-14 14:22:03 +01:00
Rafael J. Wysocki
b5d5fad9be Merge branch 'pm-opp'
* pm-opp:
  PM / OPP: Rename structures for clarity
  PM / OPP: Fix incorrect comments
  PM / OPP: Initialize regulator pointer to an error value
  PM / OPP: Initialize u_volt_min/max to a valid value
  PM / OPP: Fix NULL pointer dereference crash when disabling OPPs
  PM / OPP: Add dev_pm_opp_set_rate()
  PM / OPP: Manage device clk
  PM / OPP: Parse clock-latency and voltage-tolerance for v1 bindings
  PM / OPP: Introduce dev_pm_opp_get_max_transition_latency()
  PM / OPP: Introduce dev_pm_opp_get_max_volt_latency()
  PM / OPP: Disable OPPs that aren't supported by the regulator
  PM / OPP: get/put regulators from OPP core
2016-03-14 14:21:55 +01:00
Rafael J. Wysocki
07cc77e05e Merge branch 'powercap'
* powercap:
  powercap/rapl: track lead cpu per package
  powercap/rapl: add package reference per domain
  powercap/rapl: reduce ipi calls
  cpumask: export cpumask_any_but
2016-03-14 14:21:45 +01:00
Rafael J. Wysocki
e1fb19cbbb Merge branch 'device-properties'
* device-properties:
  device property: fix for a case of use-after-free
2016-03-14 14:21:39 +01:00
Rafael J. Wysocki
bdeabccdf9 Merge branches 'acpi-ec', 'acpi-fan', 'acpi-video' and 'acpi-misc'
* acpi-ec:
  ACPI / EC: Deny write access unless requested by module param

* acpi-fan:
  ACPI / fan: Make struct dev_pm_ops const

* acpi-video:
  ACPI / video: remove unused device_decode array

* acpi-misc:
  ACPI / util: remove redundant check if element is NULL
  ACPI: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses
  drivers/acpi: make pmic/intel_pmic_crc.c explicitly non-modular
  drivers/acpi: make apei/ghes.c more explicitly non-modular
  drivers/acpi: make bgrt driver explicitly non-modular
2016-03-14 14:21:23 +01:00
Rafael J. Wysocki
02fd4e76a6 Merge branches 'acpi-pci', 'acpi-soc' and 'pnp'
* acpi-pci:
  x86/ACPI/PCI: Recognize that Interrupt Line 255 means "not connected"

* acpi-soc:
  i2c: designware: Add device HID for future AMD I2C controller

* pnp:
  PNP / ACPI: add ACPI_RESOURCE_TYPE_SERIAL_BUS as a valid type
2016-03-14 14:20:57 +01:00
Rafael J. Wysocki
6a8ccb1dfd Merge branches 'acpi-processor' and 'acpi-cppc'
* acpi-processor:
  ACPI / sleep: move acpi_processor_sleep to sleep.c
  ACPI / processor : add support for ACPI0010 processor container
  ACPI / processor_idle: replace PREFIX with pr_fmt

* acpi-cppc:
  ACPI / CPPC: use MRTT/MPAR to decide if/when a req can be sent
  ACPI / CPPC: replace writeX/readX to PCC with relaxed version
  mailbox: pcc: optimized pcc_send_data
  ACPI / CPPC: optimized cpc_read and cpc_write
  ACPI / CPPC: Optimize PCC Read Write operations
2016-03-14 14:20:33 +01:00
Rafael J. Wysocki
caf5aa19f7 Merge branches 'acpi-scan', 'acpi-osl' and 'acpi-apei'
* acpi-scan:
  ACPI / scan: AMBA bus probing support
  ACPI: introduce a function to find the first physical device

* acpi-osl:
  ACPI / OSL: Add support to install tables via initrd
  ACPI / OSL: Clean up initrd table override code

* acpi-apei:
  ACPI / APEI: ERST: Fixed leaked resources in erst_init
  ACPI / APEI: Fix leaked resources
2016-03-14 14:20:13 +01:00
Rafael J. Wysocki
255a60fcfc Merge branch 'acpica'
* acpica:
  ACPICA / Interpreter: Fix a regression triggered because of wrong Linux ECDT support
  ACPICA: Utilities: Update trace mechinism for acquire_object
  ACPICA: Namespace: Rename acpi_gbl_reg_methods_enabled to acpi_gbl_namespace_initialized
  ACPICA: Namespace: Ensure \_SB._INI executed before any _REG
  ACPICA: ACPICA: Tune _REG evaluations order in the initialization steps
  ACPICA: Tables: make default region accessible during the table load
  ACPICA: ACPI 6.0/iASL: Add support for the External AML opcode
  ACPICA: Remove unnecessary arguments to ACPI_INFO
  ACPICA: debugger: dbconvert: free pld_info on error return path
  ACPICA: iASL: Update to use internal acpi_ut_strtoul64 function
  ACPICA: iASL: Fix some typos with the name strtoul64
  ACPICA: Remove incorrect "static" from a global structure
  ACPICA: aclocal: Put parens around some definitions.
2016-03-14 14:19:52 +01:00
Mans Rullgard
392c517449 avr32: fix asm operand constraint in cmpxchg()
If the 'old' operand to cmpxchg() is a constant wider than 21 bits,
linking fails with a "relocation truncated to fit: R_AVR32_21S" error.

Fix this by replacing the "i" constraint with "Ks21" which makes the
compiler use a temporary register for out of range constants.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Tested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
2016-03-14 11:08:29 +01:00
Hans-Christian Egtvedt
b837e97fd3 avr32: wire up copy_file_range syscall
This patch wires up the new copy_file_range syscall on AVR32.

On AVR32, all parameters beyond the 5th are passed on the stack. System
calls don't use the stack -- they borrow a callee-saved register
instead. This means that syscalls that take 6 parameters must be called
through a stub that pushes the last parameter on the stack.

Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2016-03-14 11:08:29 +01:00
Heiner Kallweit
7296c33ed1 leds: triggers: simplify led_trigger_store
led_trigger_store can be significantly simplified by using sysfs_streq().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:23 +01:00
Amitoj Kaur Chawla
1c430f9021 leds: max8997: Use devm_led_classdev_register
Switch to resource-managed function devm_led_classdev_register instead
of led_classdev_register and remove unneeded led_classdev_unregister.

Also, remove platform_set_drvdata in probe function and the remove
function, max8997_led_remove as it is now has nothing to do.

The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e;
@@
probefn(struct platform_device *pdev, ...) {
  ...
  e =
- led_classdev_register
+ devm_led_classdev_register
  (...);
   ...
?- led_classdev_unregister(...);
  ...
}
@remove depends on prb@
identifier platform.removefn;
@@
removefn(...) {
...
?- led_classdev_unregister(...);
...
}
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:23 +01:00
Amitoj Kaur Chawla
eed16255d6 leds: da903x: Use devm_led_classdev_register
Switch to resource-managed function devm_led_classdev_register instead
of led_classdev_register and remove unneeded led_classdev_unregister.

Also, remove platform_set_drvdata in probe function and the remove
function, da903x_led_remove as it is now has nothing to do.

The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e;
@@
probefn(struct platform_device *pdev, ...) {
  ...
  e =
- led_classdev_register
+ devm_led_classdev_register
  (...);
   ...
?- led_classdev_unregister(...);
  ...
}
@remove depends on prb@
identifier platform.removefn;
@@
removefn(...) {
...
?- led_classdev_unregister(...);
...
}
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
Amitoj Kaur Chawla
48a7032ba0 leds: s3c24xx: Use devm_led_classdev_register
Switch to resource-managed function devm_led_classdev_register instead
of led_classdev_register and remove unneeded led_classdev_unregister.

Also, remove unnecessary function pdev_to_gpio, platform_set_drvdata
in the probe function and the remove function, s3c24xx_led_remove as
it is now has nothing to do.

The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e;
@@
probefn(struct platform_device *pdev, ...) {
  ...
  e =
- led_classdev_register
+ devm_led_classdev_register
  (...);
   ...
?- led_classdev_unregister(...);
  ...
}
@remove depends on prb@
identifier platform.removefn;
@@
removefn(...) {
...
?- led_classdev_unregister(...);
...
}
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
Amitoj Kaur Chawla
8d3b6a4001 leds: wm831x-status: Use devm_led_classdev_register
Switch to resource-managed function devm_led_classdev_register instead
of led_classdev_register and remove unneeded led_classdev_unregister.

Also, remove platform_set_drvdata from probe function and the remove
function, wm831x_status_remove as it is now has nothing to do.

The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e;
@@
probefn(struct platform_device *pdev, ...) {
  ...
  e =
- led_classdev_register
+ devm_led_classdev_register
  (...);
   ...
?- led_classdev_unregister(...);
  ...
}
@remove depends on prb@
identifier platform.removefn;
@@
removefn(...) {
...
?- led_classdev_unregister(...);
...
}
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
Amitoj Kaur Chawla
f165a66e16 leds: lp8788: Use devm_led_classdev_register
Switch to resource-managed function devm_led_classdev_register instead
of led_classdev_register and remove unneeded led_classdev_unregister.

Also, remove platform_set_drvdata in probe function and the remove
function, lp8788_led_remove as it is now has nothing to do.

The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e;
@@
probefn(struct platform_device *pdev, ...) {
  ...
  e =
- led_classdev_register
+ devm_led_classdev_register
  (...);
   ...
?- led_classdev_unregister(...);
  ...
}
@remove depends on prb@
identifier platform.removefn;
@@
removefn(...) {
...
?- led_classdev_unregister(...);
...
}
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
Amitoj Kaur Chawla
375446df95 leds: 88pm860x: Use devm_led_classdev_register
Switch to resource-managed function devm_led_classdev_register instead
of led_classdev_register and remove unneeded led_classdev_unregister.

Also, remove platform_set_drvdata in probe function and the remove
function, pm860x_led_remove as it is now has nothing to do.

The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e;
@@
probefn(struct platform_device *pdev, ...) {
  ...
  e =
- led_classdev_register
+ devm_led_classdev_register
  (...);
   ...
?- led_classdev_unregister(...);
  ...
}
@remove depends on prb@
identifier platform.removefn;
@@
removefn(...) {
...
?- led_classdev_unregister(...);
...
}
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
David Rivshin
e0442d7def leds: Add SN3218 and SN3216 support to the IS31FL32XX driver
Si-En Technology was acquired by ISSI in 2011, and it appears that
the IS31FL3218/IS31FL3216 are just rebranded SN3218/SN3216 devices.

Add the "si-en,sn3218" and "si-en,sn3216" compatible strings into the
IS31FL32XX driver as aliases for the issi equivalents, and update
binding documentation.

Datasheets:
    IS31FL3218: http://www.issi.com/WW/pdf/31FL3218.pdf
    SN3218:     http://www.si-en.com/uploadpdf/s2011517171720.pdf

    IS31FL3216: http://www.issi.com/WW/pdf/31FL3216.pdf
    SN3216:     http://www.si-en.com/uploadpdf/SN3216201152410148.pdf

Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
Stefan Wahren
204a70bba9 of: Add vendor prefix for Si-En Technology
Si-En Technology is a fabless design house which offers
audio amplifiers, LED drivers and sensors.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
David Rivshin
9d7cffaf99 leds: Add driver for the ISSI IS31FL32xx family of LED controllers
The IS31FL32xx family of LED controllers are I2C devices with multiple
constant-current channels, each with independent 256-level PWM control.

Datasheets: http://www.issi.com/US/product-analog-fxled-driver.shtml

This has been tested on the IS31FL3236 and IS31FL3216, on an ARM
(TI am335x) platform.

The programming paradigm of these devices is similar in the following
ways:
 - All registers are 8 bit
 - All LED control registers are write-only
 - Each LED channel has a PWM register (0-255)
 - PWM register writes are shadowed until an Update register is poked
 - All have a concept of Software Shutdown, which disables output

However, there are some differences in devices:
 - 3236/3235 have a separate Control register for each LED,
   (3218/3216 pack the enable bits into fewer registers)
 - 3236/3235 have a per-channel current divisor setting
 - 3236/3235 have a Global Control register that can turn off all LEDs
 - 3216 is unique in a number of ways
    - OUT9-OUT16 can be configured as GPIOs instead of LED controls
    - LEDs can be programmed with an 8-frame animation, with
      programmable delay between frames
    - LEDs can be modulated by an input audio signal
    - Max output current can be adjusted from 1/4 to 2x globally
    - Has a Configuration register instead of a Shutdown register

This driver currently only supports the base PWM control function
of these devices. The following features of these devices are not
implemented, although it should be possible to add them in the future:
 - All devices are capable of going into a lower-power "software
   shutdown" mode.
 - The is31fl3236 and is31fl3235 can reduce the max output current
   per-channel with a divisor of 1, 2, 3, or 4.
 - The is31fl3216 can use some LED channels as GPIOs instead.
 - The is31fl3216 can animate LEDs in hardware.
 - The is31fl3216 can modulate LEDs according to an audio input.
 - The is31fl3216 can reduce/increase max output current globally.

Signed-off-by: David Rivshin <drivshin@allworx.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:21 +01:00
David Rivshin
4ef31e4993 DT: leds: Add binding for the ISSI IS31FL32xx family of LED controllers
This adds a binding description for the is31fl3236/35/18/16 I2C LED
controllers.

Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:21 +01:00
David Rivshin
b63e55b9cd DT: Add vendor prefix for Integrated Silicon Solutions Inc.
ISSI is the stock ticker Integrated Silicon Solutions Inc.
Company website: http://www.issi.com

Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:21 +01:00
Amitoj Kaur Chawla
50154e29e5 leds: lm3533: Use devm_led_classdev_register
Switch to resource-managed function devm_led_classdev_register instead
of led_classdev_register and remove unneeded led_classdev_unregister.

To be compatible with this change, remove an unnecessary label by
replacing it with direct return statement.

The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e;
@@
probefn(struct platform_device *pdev, ...) {
  ...
  e =
- led_classdev_register
+ devm_led_classdev_register
  (...);
   ...
?- led_classdev_unregister(...);
  ...
}
@remove depends on prb@
identifier platform.removefn;
@@
removefn(...) {
...
?- led_classdev_unregister(...);
...
}
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:21 +01:00
Geert Uytterhoeven
eae7c98acd leds: gpio: Use GPIOF_OUT_INIT_LOW instead of hardcoded zero
Use the GPIO flag definition instead of a numeric literal, so the casual
reader grepping for GPIOF_ will find the GPIO flags used.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:21 +01:00
Heiner Kallweit
d4887af9c2 leds: core: add helpers for calling brightness_set(_blocking)
Add helpers for calling brightness_set(_blocking) allowing to
simplify the code and make it better readable.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:21 +01:00
Wei Yongjun
2d88a331e4 leds: leds-gpio: Fix return value check in create_gpio_led()
In case of error, the function gpio_to_desc() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:20 +01:00
Antonio Ospite
c9eec908a1 leds: lp3944: improve wording and formatting in a comment
Improve the wording for the comment about the led status, and while at
it also use the standard formatting for multi-line comments.

Signed-off-by: Antonio Ospite <ao2@ao2.it>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:20 +01:00
Heiner Kallweit
d84d80f38f leds: core: avoid error message when a USB LED device is unplugged
When a USB LED device is unplugged the remove call chain calls
led_classdev_unregister which tries to switch the LED off.
As the device has been removed already this results in a ENODEV
error message in dmesg.
Avoid this error message by ignoring ENODEV in calls from
led_classdev_unregister if the LED device is flagged as pluggable.

Therefore a new flag LED_HW_PLUGGABLE was introduced which should be set by
all LED drivers handling pluggable LED devices (mainly USB LED devices).

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:20 +01:00
Heiner Kallweit
70b2563b35 leds: core: fix misleading comment after workqueue removal from drivers
Now that workqueues have been removed from individual drivers and
were replaced with a core-internal workqueue we shouldn't
encourage people to add new workqueues to drivers.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:20 +01:00
Thomas Gleixner
8e7fe2660d irqchip core changes for v4.6 (round 3)
- mvebu
    - update dt binding docs for new odmi driver
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Merge tag 'irqchip-core-4.6-3' of git://git.infradead.org/users/jcooper/linux into irq/core

Pull irqchip core changes from Jason Cooper:

- mvebu: Update dt binding docs for new odmi driver
2016-03-14 08:40:29 +01:00
Linus Torvalds
b562e44f50 Linux 4.5 2016-03-13 21:28:54 -07:00
Rafael J. Wysocki
3fdb74649b Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux into pm-tools
Pull turbostat updates for 4.6 from Len Brown.

* 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: bugfix: TDP MSRs print bits fixing
  tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump
  tools/power turbostat: call __cpuid() instead of __get_cpuid()
  tools/power turbostat: indicate SMX and SGX support
  tools/power turbostat: detect and work around syscall jitter
  tools/power turbostat: show GFX%rc6
  tools/power turbostat: show GFXMHz
  tools/power turbostat: show IRQs per CPU
  tools/power turbostat: make fewer systems calls
  tools/power turbostat: fix compiler warnings
  tools/power turbostat: add --out option for saving output in a file
  tools/power turbostat: re-name "%Busy" field to "Busy%"
  tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding
  tools/power turbostat: Intel Xeon x200: fix erroneous bclk value
  tools/power turbostat: allow sub-sec intervals
  tools/power turbostat: Decode MSR_MISC_PWR_MGMT
  tools/power turbostat: decode HWP registers
  x86 msr-index: Simplify syntax for HWP fields
  tools/power turbostat: CPUID(0x16) leaf shows base, max, and bus frequency
  tools/power turbostat: decode more CPUID fields
2016-03-14 02:13:05 +01:00