Nishanth Menon d287de855f PM / devfreq: Add sysfs node to expose available frequencies ...

devfreq governors such as ondemand are controlled by a min and
max frequency, while governors like userspace governor allow us
to set a specific frequency.
However, for the same specific device, depending on the SoC, the
available frequencies can vary.

So expose the available frequencies as a snapshot over sysfs to
allow informed decisions.

This was inspired by cpufreq framework's equivalent for similar
usage sysfs node: scaling_available_frequencies.

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>

2012-11-20 15:59:32 +09:00

..

configfs-spear-pcie-gadget

ST SPEAr: PCIE gadget suppport

2011-03-22 17:44:10 -07:00

debugfs-ec

Documentation: Add new /sys/kernel/debug/ec/* files to ABI

2010-08-03 09:49:07 -04:00

debugfs-ideapad

ideapad: add debugfs support

2011-10-24 16:52:39 +02:00

debugfs-olpc

x86/olpc: Add debugfs interface for EC commands

2012-03-27 20:54:52 +02:00

debugfs-pfo-nx-crypto

powerpc/crypto: debugfs routines and docs for the nx device driver

2012-05-16 15:05:45 +10:00

debugfs-pktcdvd

doc: use correct debugfs mountpoint

2009-04-13 15:04:33 -07:00

dev-kmsg

kmsg - export "continuation record" flag to /dev/kmsg

2012-07-16 18:35:30 -07:00

evm

evm: re-release

2011-07-18 12:29:40 -04:00

ima_policy

ima: audit log hashes

2012-09-13 14:48:44 -04:00

procfs-diskstats

tree-wide: fix assorted typos all over the place

2009-12-04 15:39:55 +01:00

pstore

pstore: Allow the user to explicitly choose a backend

2011-07-22 16:14:39 -07:00

sysfs-ata

[libata] Add ATA transport class

2010-10-21 20:21:03 -04:00

sysfs-block

block: Implement support for WRITE SAME

2012-09-20 14:31:45 +02:00

sysfs-block-dm

dm: document sysfs entries

2012-03-28 18:41:23 +01:00

sysfs-block-rssd

mtip32xx: Remove 'registers' and 'flags' from sysfs

2012-06-05 09:13:48 +02:00

sysfs-block-zram

Documentation: Add newline at end-of-file to files lacking one

2012-07-20 23:10:28 +02:00

sysfs-bus-bcma

Documentation/ABI/: update version number references from 2.6.x to 3.x

2011-08-05 13:32:40 +02:00

sysfs-bus-css

Fix common misspellings

2011-03-31 11:26:23 -03:00

sysfs-bus-event_source-devices-format

perf: Adding sysfs group format attribute for pmu device

2012-03-16 14:06:06 -03:00

sysfs-bus-fcoe

[SCSI] Documentation: Add lesb/ to path for LESB attributes in FCoE bus documentation

2012-10-07 11:54:14 +01:00

sysfs-bus-hsi

HSI: Add HSI ABI documentation

2012-04-23 14:23:32 +03:00

sysfs-bus-i2c-devices-fsa9480

drivers/misc: add support the FSA9480 USB Switch

2011-07-25 20:57:14 -07:00

sysfs-bus-i2c-devices-hm6352

hmc6352: add driver for the HMC6352 compass

2010-08-09 20:45:10 -07:00

sysfs-bus-i2c-devices-lm3533

mfd: Remove lm3533 boost attributes

2012-05-20 17:27:01 +02:00

sysfs-bus-iio

iio: kernel version typo in sysfs-bus-iio

2012-07-08 10:39:58 +01:00

sysfs-bus-iio-frequency-ad9523

iio: frequency: New driver for AD9523 SPI Low Jitter Clock Generator

2012-06-04 21:19:05 -07:00

sysfs-bus-iio-frequency-adf4350

iio: frequency: New driver for Analog Devices ADF4350/ADF4351 Wideband Synthesizers

2012-06-04 21:19:40 -07:00

sysfs-bus-iio-light-lm3533-als

iio: cleanup sysfs-bus-iio-light-lm3533-als

2012-06-15 14:39:18 -07:00

sysfs-bus-media

[media] media: Media device

2011-03-22 04:53:09 -03:00

sysfs-bus-pci

PCI/PM: Add ABI document for sysfs file d3cold_allowed

2012-08-21 17:36:33 -06:00

sysfs-bus-pci-devices-cciss

cciss: add transport mode attribute to sys

2011-08-08 11:40:17 +02:00

sysfs-bus-pci-drivers-ehci_hcd

USB: document ehci-hcd's "companion" sysfs attribute

2011-09-18 01:48:37 -07:00

sysfs-bus-rbd

rbd: add an rbd features field

2012-10-01 14:30:53 -05:00

sysfs-bus-rpmsg

rpmsg: add virtio-based remote processor messaging bus

2012-02-08 22:53:58 +02:00

sysfs-bus-umc

uwb: document UWB and WUSB sysfs files

2008-09-17 16:54:35 +01:00

sysfs-bus-usb

Revert "usb : Add sysfs files to control port power."

2012-09-24 13:04:02 -07:00

sysfs-bus-usb-devices-usbsevseg

Documentation: Add newline at end-of-file to files lacking one

2012-07-20 23:10:28 +02:00

sysfs-c2port

Add c2 port support

2008-11-12 17:17:18 -08:00

sysfs-cfq-target-latency

Documentation: Add sysfs ABI change for cfq's target latency.

2012-04-01 14:33:40 -07:00

sysfs-class

driver-core: documentation: fix up Greg's email address

2012-02-15 14:48:01 -08:00

sysfs-class-backlight-driver-adp8870

Documentation: Add newline at end-of-file to files lacking one

2012-07-20 23:10:28 +02:00

sysfs-class-backlight-driver-lm3533

backlight: add LM3533 backlight driver

2012-05-29 16:22:29 -07:00

sysfs-class-bdi

fuse: fix bdi naming conflict

2008-05-24 09:56:07 -07:00

sysfs-class-devfreq

PM / devfreq: Add sysfs node to expose available frequencies

2012-11-20 15:59:32 +09:00

sysfs-class-extcon

extcon: fix typos in sys-class-extcon

2012-09-05 12:18:11 -07:00

sysfs-class-lcd

video/lcd: document sysfs interface

2009-08-28 15:21:12 -04:00

sysfs-class-led

Fix common misspellings

2011-03-31 11:26:23 -03:00

sysfs-class-led-driver-lm3533

leds: add LM3533 LED driver

2012-05-29 16:22:32 -07:00

sysfs-class-mtd

mtd: ABI documentation: clarification of bitflip_threshold

2012-07-06 15:10:06 +01:00

sysfs-class-net-batman-adv

net: Add batman-adv meshing protocol

2010-12-16 13:44:24 -08:00

sysfs-class-net-mesh

batman-adv: make bridge loop avoidance switchable

2012-04-11 14:28:59 +02:00

sysfs-class-pktcdvd

[PATCH] pktcdvd: cleanup

2007-02-11 10:51:28 -08:00

sysfs-class-power

ds2760_battery: Document ABI change

2010-05-19 12:25:39 +04:00

sysfs-class-regulator

regulator: core: Support bypass mode

2012-09-10 11:25:10 +08:00

sysfs-class-rtc-rtc0-device-rtc_calibration

rtc/ab8500: add calibration attribute to AB8500 RTC

2012-01-10 16:30:52 -08:00

sysfs-class-scsi_host

[SCSI] isci: Adding documentation to API change and fixup sysfs registration

2011-08-23 19:54:24 -07:00

sysfs-class-uwb_rc

uwb: add basic radio manager

2008-11-19 14:46:33 +00:00

sysfs-class-uwb_rc-wusbhc

USB: wusb: add wusb_phy_rate sysfs file to host controllers

2009-12-11 11:55:16 -08:00

sysfs-dev

sysfs: add /sys/dev/{char,block} to lookup sysfs path by major:minor

2008-07-21 21:54:40 -07:00

sysfs-devices

driver-core: documentation: fix up Greg's email address

2012-02-15 14:48:01 -08:00

sysfs-devices-edac

Edac: Add ABI Documentation for the new device nodes

2012-06-11 13:23:47 -03:00

sysfs-devices-firmware_node

ACPI: Add new sysfs interface to export device description

2012-10-06 15:52:16 -04:00

sysfs-devices-memory

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

sysfs-devices-mmc

mmc: export eMMC4.4 enhanced area details to sysfs

2011-03-15 13:48:01 -04:00

sysfs-devices-node

mm: compaction: add /sys trigger for per-node memory compaction

2010-05-25 08:06:59 -07:00

sysfs-devices-platform-_UDC_-gadget

USB: gadget: storage: optional SCSI WRITE FUA bit

2010-08-10 14:35:42 -07:00

sysfs-devices-platform-docg3

Documentation: add sysfs entries for mtd docg3 chips

2012-01-09 18:12:17 +00:00

sysfs-devices-platform-sh_mobile_lcdc_fb

fbdev: sh_mobile_lcdc: Implement overlays support

2012-06-20 10:02:54 +02:00

sysfs-devices-power

PM / Sleep: Add "prevent autosleep time" statistics to wakeup sources

2012-05-01 21:25:49 +02:00

sysfs-devices-soc

Documentation: add information for new sysfs soc bus functionality

2012-02-10 11:42:25 -08:00

sysfs-devices-system-cpu

acpi-cpufreq: Add support for disabling dynamic overclocking

2012-09-09 22:05:12 +02:00

sysfs-devices-system-ibm-rtl

IBM Real-Time "SMI Free" mode driver -v7

2010-10-21 10:10:46 -04:00

sysfs-devices-system-xen_cpu

xen/pcpu: Xen physical cpus online/offline sys interface

2012-07-19 15:51:39 -04:00

sysfs-driver-hid

HID: Add HID Report Descriptor to sysfs

2011-02-17 13:23:14 +01:00

sysfs-driver-hid-lenovo-tpkbd

HID: Driver for Lenovo Keyboard with Trackpoint

2012-06-08 10:44:10 +02:00

sysfs-driver-hid-logitech-lg4ff

misc latin1 to utf8 conversions

2012-01-02 13:04:55 +01:00

sysfs-driver-hid-multitouch

HID: multitouch: create sysfs attribute to control quirks from user-space

2011-11-23 14:50:38 +01:00

sysfs-driver-hid-picolcd

HID: split picolcd's operation_mode sysfs attribute

2010-04-27 15:31:26 +02:00

sysfs-driver-hid-prodikeys

HID: Prodikeys PC-MIDI HID Driver

2010-05-12 15:18:59 +02:00

sysfs-driver-hid-roccat-arvo

HID: roccat: Add 'Users:' tag to sysfs documentation

2011-02-03 17:29:49 +01:00

sysfs-driver-hid-roccat-isku

HID: roccat: Add support for Isku keyboard

2011-12-06 10:21:10 +01:00

sysfs-driver-hid-roccat-kone

Documentation: fix minor typos/spelling

2011-04-04 17:51:47 -07:00

sysfs-driver-hid-roccat-koneplus

HID: roccat: Add "Roccat Talk" support for koneplus

2011-06-13 12:50:40 +02:00

sysfs-driver-hid-roccat-kovaplus

Documentation: fix minor typos/spelling

2011-04-04 17:51:47 -07:00

sysfs-driver-hid-roccat-pyra

Documentation: fix minor typos/spelling

2011-04-04 17:51:47 -07:00

sysfs-driver-hid-roccat-savu

HID: roccat: added sensor sysfs attribute for Savu

2012-07-20 09:50:42 +02:00

sysfs-driver-hid-wiimote

HID: wiimote: Add extension sysfs attribute

2011-11-22 23:09:08 +01:00

sysfs-driver-ppi

Documentation: sysfs for Physical Presence Interface

2012-08-22 16:23:38 -05:00

sysfs-driver-samsung-laptop

Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

2012-03-28 14:20:23 -07:00

sysfs-driver-wacom

HID: wacom: OLEDs control over sysfs for Intuos4

2012-08-15 10:29:11 +02:00

sysfs-firmware-acpi

ACPI: Add support for exposing BGRT data

2012-03-30 04:09:24 -04:00

sysfs-firmware-dmi

firmware: Fix grammar in sysfs-firmware-dmi doc

2011-04-19 16:45:51 -07:00

sysfs-firmware-gsmi

driver: Google EFI SMI

2011-04-29 18:09:34 -07:00

sysfs-firmware-log

driver: Google Memory Console

2011-04-29 18:09:34 -07:00

sysfs-firmware-memmap

Bernhard has moved

2009-02-18 15:37:56 -08:00

sysfs-firmware-sfi

SFI: add sysfs interface for SFI tables.

2010-05-27 12:46:20 -04:00

sysfs-firmware-sgi_uv

sysfs: document files in /sys/firmware/sgi_uv/

2008-09-02 19:21:40 -07:00

sysfs-fs-ext4

ext4: make the zero-out chunk size tunable

2012-08-17 09:54:17 -04:00

sysfs-gpio

gpiolib: allow poll() on value

2009-09-23 07:39:48 -07:00

sysfs-i2c-bmp085

drivers/misc: support for the pressure sensor BMP085 from Bosch Sensortec

2010-08-09 20:45:05 -07:00

sysfs-ibft

Firmware: add iSCSI iBFT Support

2008-04-19 19:10:28 -07:00

sysfs-kernel-fscaps

kernel/ksysfs.c: expose file_caps_enabled in sysfs

2011-04-19 16:45:51 -07:00

sysfs-kernel-iommu_groups

iommu: IOMMU Groups

2012-06-25 13:48:15 +02:00

sysfs-kernel-mm

mm: create /sys/kernel/mm

2008-07-24 10:47:17 -07:00

sysfs-kernel-mm-hugepages

hugetlb: new sysfs interface

2008-07-24 10:47:17 -07:00

sysfs-kernel-slab

slub: document setting min order with debug_guardpage_minorder > 0

2012-01-12 20:13:04 -08:00

sysfs-kernel-uids

Documentation: create new scheduler/ subdirectory

2008-02-07 08:42:17 -08:00

sysfs-memory-page-offline

HWPOISON: Add soft page offline support

2009-12-16 12:20:00 +01:00

sysfs-module

modules: sysfs - export: taint, coresize, initsize

2012-01-13 09:32:15 +10:30

sysfs-ocfs2

ocfs2: Document /sys/fs/ocfs2

2008-04-18 08:56:07 -07:00

sysfs-platform-asus-laptop

Documentation: fix minor typos/spelling

2011-04-04 17:51:47 -07:00

sysfs-platform-asus-wmi

asus-wmi: enable resume on lid open

2012-07-28 00:11:49 -04:00

sysfs-platform-at91

can: at91_can: make can_id of mailbox 0 configurable

2011-01-24 14:56:37 +01:00

sysfs-platform-eeepc-laptop

eeepc-laptop: set the right paths in the documentation

2010-02-28 19:30:57 +01:00

sysfs-platform-ideapad-laptop

ideapad: add Lenovo IdeaPad Z570 support (part 3)

2012-08-20 12:44:41 -04:00

sysfs-platform-kim

drivers:misc: ti-st: move from rfkill to sysfs

2011-02-04 12:41:20 -08:00

sysfs-power

PM / Sleep: add knob for printing device resume times

2012-07-01 13:31:22 +02:00

sysfs-pps

LinuxPPS: core support

2009-06-18 13:04:04 -07:00

sysfs-profiling

profiling: dynamically enable readprofile at runtime

2008-10-16 11:21:31 -07:00

sysfs-ptp

ptp: clarify the clock_name sysfs attribute

2012-09-22 15:42:46 -04:00

sysfs-tty

tty: uartclk value from serial_core exposed to sysfs

2012-09-06 09:22:04 -07:00

sysfs-wusb_cbaf

uwb: document UWB and WUSB sysfs files

2008-09-17 16:54:35 +01:00