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* hp-wmi: remove a variable that is never readAnssi Hannula2011-03-281-2/+1
| | | | | | | | | | Remove the status variable from hp_wmi_perform_query which holds the return value from wmi_evaluate_method(). It is never checked as the function bails out if the output buffer hasn't been allocated which indicates the call failed. Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* hp-wmi: check query return value in hp_wmi_perform_queryAnssi Hannula2011-03-281-0/+16
| | | | | | | | | Check BIOS provided return value code in hp_wmi_perform_query and print a warning on error. Printing is suppressed for HPWMI_RET_UNKNOWN_CMDTYPE which is returned when the command type is unsupported. Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: implement new backlight control methodMattia Dongili2011-03-281-30/+79
| | | | | | | | | | Reasonably recent Vaios have a 0x12f or 0x137 handler that exposes a fine lid backlight regulation with values ranging from 0 to 255. The patch is based on findings and code from Javier Achirica <achirica@gmail.com> and Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: implement keyboard backlight supportMattia Dongili2011-03-281-1/+175
| | | | | | | | | | | Recent Vaios have the opportunity to control the keyboard backlight via ACPI calls to the SNC device. Introduce two module parameters to control how keyboard backlight should be set at module loading (default to on and with 10 seconds timeout). Tested-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: cache handles and report them via sysfsMattia Dongili2011-03-281-16/+81
| | | | | | | | | | Avoid calling into acpi each time we need to lookup a method handle and report the available handles to ease collection of information when debugging issues. Also move initialization of the platform driver earlier to allow adding files from other setup functions. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: remove unused Type4 defineMattia Dongili2011-03-281-1/+0
| | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: use pr_<level> for messagesMattia Dongili2011-03-281-54/+46
| | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: ignore hard switch rfkill events (SPIC)Mattia Dongili2011-03-281-3/+5
| | | | | | | | | | There is not much use for these events in userspace and handling the events themselves seems to get in the way of the actual activation of the rf devices. The SNC device doesn't expose them already. https://bugzilla.kernel.org/show_bug.cgi?id=15303 Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add some debug printk useful for bug reportsMattia Dongili2011-03-281-3/+11
| | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* platform/x86: intel_mid_powerbutton needs INPUTRandy Dunlap2011-03-281-1/+1
| | | | | | | | | | | | | | | | intel_mid_powerbtn.c uses input interfaces, so it should depend on INPUT to fix build errors when CONFIG_INPUT is not enabled: intel_mid_powerbtn.c:(.text+0x56ca8f): undefined reference to `input_event' intel_mid_powerbtn.c:(.devinit.text+0x2e7b4): undefined reference to `input_allocate_device' intel_mid_powerbtn.c:(.devinit.text+0x2e7ff): undefined reference to `input_set_capability' intel_mid_powerbtn.c:(.devinit.text+0x2e84a): undefined reference to `input_register_device' intel_mid_powerbtn.c:(.devinit.text+0x2e88b): undefined reference to `input_free_device' intel_mid_powerbtn.c:(.devexit.text+0x42f0): undefined reference to `input_unregister_device' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Hong Liu <hong.liu@intel.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* Enable Dell All-In-One volume up/down keysColin Ian King2011-03-283-0/+185
| | | | | | | | | | | | | | | | Enable volume up and down hotkeys on WMI events GUID 284A0E6B-380E-472A-921F-E52786257FB4 and GUID 02314822-307C-4F66-bf0E-48AEAEB26CC8. Also works around a firmware bug where the _WED method should return an integer containing the key code and in fact the method returns the key code in element zero of a buffer. BugLink: http://bugs.launchpad.net/bugs/701530 BugLink: http://bugs.launchpad.net/bugs/676997 Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* intel_mid_powerbtn: add power button driver for Medfield platform (#3)Hong Liu2011-03-283-0/+157
| | | | | | | | | | | The power button is connected to MSIC on Medfield, we will get two interrupts from IOAPIC when pressing or releasing the power button. Signed-off-by: Hong Liu <hong.liu@intel.com> [Minor fixes as noted by Dmitry] Signed-off-by: Alan Cox <alan@linux.intel.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: add camera keysCorentin Chary2011-03-281-0/+7
| | | | | | | | | These keys are supposed to be handled by any software using the camera (like webKam or cheese...). They can also be used to actually move the camera when possible. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: reorder device idsCorentin Chary2011-03-281-0/+11
| | | | | | | Each device seems to be in a "group" (devid >> 16 & 0xFF). Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: add touchpad sysfs fileCorentin Chary2011-03-281-0/+5
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* asus-laptop: remove deprecated interfaces (lcd_switch and display_get)Corentin Chary2011-03-281-160/+3
| | | | | | | | | | | | | | | | | | | | | I should have done that one year ago, so it's more than time to do it. These two features use non-standard interfaces. There are the only features that really need multiple path to guess what's the right method name on a specific laptop. Removing them allow to remove a lot of code an significantly clean the driver. This will affect the backlight code which won't be able to know if the backlight is on or off. The platform display file will also be write only (like the one in eeepc-laptop). Signed-off-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* asus-laptop: let WLED alone on L1400BCorentin Chary2011-03-281-0/+17
| | | | | | | | | | | | Asus took the DSDT from another model (L84F), made some change to make it work, but forgot to remove WLED method (the laptop doesn't have a wireless card). They even didn't change the model name. ref: https://bugzilla.kernel.org/show_bug.cgi?id=25712 Signed-off-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: comments keymap to clarify the meaning of some keysCorentin Chary2011-03-281-3/+3
| | | | | | | Found while checking PDF manuals... Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: real touchpad led device id is 0x001000012Corentin Chary2011-03-281-6/+6
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: respect wireless_hotplug settingCorentin Chary2011-03-281-0/+3
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: support backlight power (bl_power) attributeCorentin Chary2011-03-281-14/+61
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: set the right key code for 0xe9Corentin Chary2011-03-281-1/+1
| | | | | | | | This key should power off the backlight, not the display, it is also used in acpi/video.c to do the same thing. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: add wimax supportCorentin Chary2011-03-281-1/+19
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: add camera and card reader supportCorentin Chary2011-03-281-1/+88
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: use the presence bit correctlyCorentin Chary2011-03-281-8/+5
| | | | | | | | | | I checked some more DSDT, and it seems that I wasn't totally right about the meaning of DSTS return value. Bit 0 is clearly the status of the device, and I discovered that bit 16 is set when the device is present. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: reorder definesCorentin Chary2011-03-281-9/+9
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: switch to platform_create_bundle()Corentin Chary2011-03-281-53/+22
| | | | | | | This allow to remove ~30 lines of code. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: add hibernate/resume callbacksCorentin Chary2011-03-281-0/+49
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: add an helper using simple return codesCorentin Chary2011-03-281-57/+39
| | | | | | | | | | eeepc_wmi_get_devstate returns an acpi_status, so each call need extra logic to handle the return code. This patch add a simple getter, returning a boolean (or a negative error code). Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: return proper error code in eeepc_rfkill_set()Corentin Chary2011-03-281-1/+7
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: serialize access to wmi methodCorentin Chary2011-03-281-6/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | \AMW0.WMBC, which is the main method that we use, is not reentrant. When wireless hotpluging is enabled, toggling the status of the wireless device using WMBC will trigger a notification and the notification handler need to call WMBC again to get the new status of the device, this will trigger the following error: ACPI Error (dswload-0802): [_T_0] Namespace lookup failure, AE_ALREADY_EXISTS ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog (20100428/psloop-231) ACPI Error (psparse-0537): Method parse/execution failed [\AMW0.WMBC] (Node f7023b88), AE_ALREADY_EXISTS ACPI: Marking method WMBC as Serialized because of AE_ALREADY_EXISTS error Since there is currently no way to tell the acpi subsystem to mark a method as serialized, we do it in eeepc-wmi. Of course, we could let the first call fail, and then it would work, but it doesn't seems really clean, and it will make the first WMBC call return a random value. This patch was tested on EeePc 1000H with a RaLink RT2860 wireless card using the rt2800pci driver. rt2860sta driver seems to deadlock when we remove the pci device... Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: add hotplug code for Eeepc 1000HCorentin Chary2011-03-281-1/+273
| | | | | | | | | | | | | | Implement wireless like hotplug handling (code stolen from eeepc-laptop). Reminder: on some models rfkill is implemented by logically unplugging the wireless card from the PCI bus. Despite sending ACPI notifications, this does not appear to be implemented using standard ACPI hotplug - nor does the firmware provide the _OSC method required to support native PCIe hotplug. The only sensible choice appears to be to handle the hotplugging directly in the platform driver. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: add wlan key found on 1015PCorentin Chary2011-03-281-0/+1
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* eeepc-wmi: reorder keymapCorentin Chary2011-03-281-7/+7
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* OLPC XO-1.5 ebook switch driverPaul Fox2011-03-283-0/+191
| | | | | | | | | | | | | The OLPC XO-1.5 has an ebook switch, triggered when the laptop screen is rotated then folding down, converting the device into ebook form. This switch is exposed through ACPI. Add a driver that exposes it to userspace as an input device. Signed-off-by: Daniel Drake <dsd@laptop.org> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2011-03-2810-61/+439
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: regulator: Add MODULE_DEVICE_TABLE to max8997 and max8998 regulator: fix tps6524x section mismatch regulator: Remove more wm831x-specific IRQ operations regulator: add ab8500 enable and raise time delays regulator: provide consumer interface for fall/rise time regulator: add set_voltage_time_sel infrastructure regulator: initialization for ab8500 regulators regulator: add support for USB voltage regulator regulator: switch the ab3100 to use enable_time() Regulator: add suspend-finish API for regulator core. regulator: fix typo in Kconfig regulator: Convert WM831x regulators to genirq regulator: If we fail when setting up a supply say which supply
| * regulator: Add MODULE_DEVICE_TABLE to max8997 and max8998Axel Lin2011-03-272-0/+2
| | | | | | | | | | | | | | | | | | | | | | The device table is required to load modules based on modaliases. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: MyungJoo Ham <myungjoo.ham@smasung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: fix tps6524x section mismatchRandy Dunlap2011-03-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Fix section mismatch that is caused by init code calling exit code: pmic_remove() cannot be marked as __devexit. WARNING: drivers/regulator/tps6524x-regulator.o(.devinit.text+0x205): Section mismatch in reference from the function pmic_probe() to the function .devexit.text:pmic_remove() The function __devinit pmic_probe() references a function __devexit pmic_remove(). This is often seen when error handling in the init function uses functionality in the exit path. The fix is often to remove the __devexit annotation of pmic_remove() so it may be used outside an exit section. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Cyril Chemparathy <cyril@ti.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: Remove more wm831x-specific IRQ operationsMark Brown2011-03-261-3/+3
| | | | | | | | | | | | | | These are the last users in the tree. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: add ab8500 enable and raise time delaysLinus Walleij2011-03-261-0/+30
| | | | | | | | | | | | | | | | | | | | This uses the new infrastructure to provide proper delays when enabling or setting the voltage of one specific regulator. Cc: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: provide consumer interface for fall/rise timeLinus Walleij2011-03-261-0/+45
| | | | | | | | | | | | | | | | | | | | This exposes the functionality for rise/fall fime when setting voltage to the consumers. Cc: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: add set_voltage_time_sel infrastructureLinus Walleij2011-03-261-0/+25
| | | | | | | | | | | | | | | | | | | | | | This makes it possible to set the stabilization time for voltage regulators in the same manner as enable_time(). The interface only supports regulators that implements fixed selectors. Cc: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: initialization for ab8500 regulatorsBengt Jonsson2011-03-261-1/+222
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The regulators on the AB8500 have a lot of custom hardware control settings pertaining to 8 external signals, settings which are board-specific and need be provided from the platform at startup. Initialization added for regulators Vana, VextSupply1, VextSupply2, VextSupply3, Vaux1, Vaux2, Vaux3, VTVout, Vintcore12, Vaudio, Vdmic, Vamic1, Vamic2, VrefDDR. Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Reviewed-by: Rickard Andersson <rickard.andersson@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: add support for USB voltage regulatorBengt Jonsson2011-03-261-1/+16
| | | | | | | | | | | | | | Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: switch the ab3100 to use enable_time()Linus Walleij2011-03-261-23/+28
| | | | | | | | | | | | | | | | | | | | | | Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> This switches the ab3100 core to use the enable_time() infrastructure from the regulator core. Cc: Mattias Wallin <mattias.wallin@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * Regulator: add suspend-finish API for regulator core.MyungJoo Ham2011-03-261-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The regulator core had suspend-prepare that turns off the regulators when entering a system-wide suspend. However, it did not have suspend-finish that pairs with suspend-prepare and the regulator core has assumed that the regulator devices and their drivers support autonomous recover at resume. This patch adds regulator_suspend_finish that pairs with the previously-existed regulator_suspend_prepare. The function regulator_suspend_finish turns on the regulators that have always_on set or positive use_count so that we can reset the regulator states appropriately at resume. In regulator_suspend_finish, if has_full_constraints, it disables unnecessary regulators. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> -- Updates v3 comments corrected (Thanks to Igor) v2 disable unnecessary regulators (Thanks to Mark) Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: fix typo in KconfigIgor Grinberg2011-03-261-1/+1
| | | | | | | | | | | | | | | | Fix typo: s/TPS695x0/TPS659x0/ Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: Convert WM831x regulators to genirqMark Brown2011-03-263-30/+21
| | | | | | | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * regulator: If we fail when setting up a supply say which supplyMark Brown2011-03-261-1/+4
| | | | | | | | | | | | | | | | Makes it a bit easier to identify if it's a problem with the supplies, the usual error would be omitting the supply name entirely. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* | Merge branch 'for-next' of ↵Linus Torvalds2011-03-2829-279/+563
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: mfd: Clean up max8997 IRQ namespace mfd: Fold irq_set_chip/irq_set_handler mfd: Cleanup irq namespace mfd: twl6030: Cleanup interrupt handling mfd: twl4030: Cleanup interrupt handling mfd: mx8925: Remove irq_desc leftovers mfd: htc-i2cpld: Cleanup interrupt handling mfd: htc-egpio: Cleanup interrupt handling mfd: ezx-pcap: Remvove open coded irq handling mfd: 88pm860x: Remove unused irq_desc leftovers mfd: asic3: Cleanup irq handling mfd: Select MFD_CORE if TPS6105X driver is configured mfd: Add MODULE_DEVICE_TABLE to rdc321x-southbridge mfd: Add MAX8997/8966 IRQ control mfd: Constify i2c_device_id tables mfd: OLPC: Clean up names to match what OLPC actually uses mfd: Add mfd_clone_cell(), convert cs5535-mfd/olpc-xo1 to it