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path: root/drivers/platform/x86/sony-laptop.c
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* platform / x86 / PM: Fix unused function warnings for CONFIG_PM_SLEEPRafael J. Wysocki2012-08-10
| | | | | | | | According to compiler warnings, quite some suspend/resume functions in platform x86 drivers are not used for CONFIG_PM_SLEEP unset, so add #ifdefs to prevent them from being built in that case. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* Merge tag 'pm-for-3.6-rc1' of ↵Linus Torvalds2012-07-22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: - ACPI conversion to PM handling based on struct dev_pm_ops. - Conversion of a number of platform drivers to PM handling based on struct dev_pm_ops and removal of empty legacy PM callbacks from a couple of PCI drivers. - Suspend-to-both for in-kernel hibernation from Bojan Smojver. - cpuidle fixes and cleanups from ShuoX Liu, Daniel Lezcano and Preeti Murthy. - cpufreq bug fixes from Jonghwa Lee and Stephen Boyd. - Suspend and hibernate fixes from Srivatsa Bhat and Colin Cross. - Generic PM domains framework updates. - RTC CMOS wakeup signaling update from Paul Fox. - sparse warnings fixes from Sachin Kamat. - Build warnings fixes for the generic PM domains framework and PM sysfs code. - sysfs switch for printing device suspend times from Sameer Nanda. - Documentation fix from Oskar Schirmer. * tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (70 commits) cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch EXYNOS: bugfix on retrieving old_index from freqs.old PM / Sleep: call early resume handlers when suspend_noirq fails PM / QoS: Use NULL pointer instead of plain integer in qos.c PM / QoS: Use NULL pointer instead of plain integer in pm_qos.h PM / Sleep: Require CAP_BLOCK_SUSPEND to use wake_lock/wake_unlock PM / Sleep: Add missing static storage class specifiers in main.c cpuilde / ACPI: remove time from acpi_processor_cx structure cpuidle / ACPI: remove usage from acpi_processor_cx structure cpuidle / ACPI : remove latency_ticks from acpi_processor_cx structure rtc-cmos: report wakeups from interrupt handler PM / Sleep: Fix build warning in sysfs.c for CONFIG_PM_SLEEP unset PM / Domains: Fix build warning for CONFIG_PM_RUNTIME unset olpc-xo15-sci: Use struct dev_pm_ops for power management PM / Domains: Replace plain integer with NULL pointer in domain.c file PM / Domains: Add missing static storage class specifier in domain.c file PM / crypto / ux500: Use struct dev_pm_ops for power management PM / IPMI: Remove empty legacy PCI PM callbacks tpm_nsc: Use struct dev_pm_ops for power management tpm_tis: Use struct dev_pm_ops for power management ...
| * sony-laptop: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-01
| | | | | | | | | | | | | | | | Make the sony-laptop driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| * ACPI / PM: Drop pm_message_t argument from device suspend callbackRafael J. Wysocki2012-07-01
| | | | | | | | | | | | | | | | | | None of the drivers implementing the ACPI device suspend callback uses the pm_message_t argument of it, so this argument may be dropped entirely from that callback. This will simplify switching the ACPI bus type to PM handling based on struct dev_pm_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* | sony-laptop: correct find_snc_handle failure checksMattia Dongili2012-06-26
| | | | | | | | | | | | | | | | Since bab7084c745bf4d75b760728387f375fd34dc683, find_snc_handle returns -EINVAL, not -1. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: fix a couple signedness bugsDan Carpenter2012-06-26
| | | | | | | | | | | | | | | | | | | | This needs to be signed to handle negative error codes. Remove a redundant check, read_limits is always called with a valid handle. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: fix sony_nc_sysfs_store()Dan Carpenter2012-06-26
| | | | | | | | | | | | | | | | | | | | | | | | We made this an unsigned long and it causes a bug on 64 bit big endian systems when we try to pass the value to sony_nc_int_call(). Also value has to be signed because validate() returns negative error codes. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: input initialization should be done before SNCMattia Dongili2012-06-26
| | | | | | | | | | | | | | | | SNC needs input devices so better have those ready before starting handle events. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: add lid backlight support for handle 0x143Mattia Dongili2012-06-26
| | | | | | | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: store battery care limits on batteriesMattia Dongili2012-06-26
| | | | | | | | | | | | | | | | Some models offer the option to store the limits on the battery (firmware?). Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: notify userspace of GFX switch position changesMarco Chiappero2012-06-26
| | | | | | | | | | | | | | | | | | | | Some Vaios come with both integrated and discrete graphics, plus a switch for choosing one of the two. When the switch position is changed, a notification is generated. Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: use an enum for SNC event typesMattia Dongili2012-06-26
|/ | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add touchpad enable/disable functionMarco Chiappero2012-05-31
| | | | | | | | | | | This setting is stored in the EC and available across reboots. [malattia@linux.it: group function specific variables in a struct, use kstrtoul] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add missing Fn key combos for 0x100 handlersMarco Chiappero2012-05-31
| | | | | | Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add support for more WWAN modemsMarco Chiappero2012-05-31
| | | | | | | | | Also make the initialization function return a value for consistency with all the other setup functions. Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: new keyboard backlight handleMarco Chiappero2012-05-31
| | | | | | | | | | | | Add support for handle 0x0143 (Vaio SA/SB/SC, CA/CB) and rework the code to be hable to support different handles for the keyboard backlight function. [malattia@linux.it: group function specific variables in a struct] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add high speed battery charging functionMarco Chiappero2012-05-31
| | | | | | Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: support automatic resume on lid openMarco Chiappero2012-05-31
| | | | | | | | | | | | | | | A few models offer the chance to set whether to resume from S3 and/or S4 when opening the lid. [malattia@linux.it: create three sysfs files for S3/4/5 rather than using a single one accepting a bitmask. Support S5 since the DSDT exports it. Use a struct to hold all the related values, caching of the current status value rather than re-reading all the time in the sysfs show function.] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: adjust error handling in finding SNC handlesMattia Dongili2012-05-31
| | | | | | | | All handles must be greater than 0, also return more meaningful error codes on invalid conditions. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add thermal profiles supportMarco Chiappero2012-05-31
| | | | | | | | [malattia@linux.it: support string based profiles names] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: support battery care functionsMarco Chiappero2012-05-31
| | | | | | | | | | | | | Allows limiting the maximum battery charge level to a selectable value (100%, 80% and 50%). [malattia@linux.it: group function specific variables in a struct, use kstrtoul. Allow 0 to 100 values into sysfs files rounding to the actual limit.] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: additional debug statementsMattia Dongili2012-05-31
| | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: improve SNC initialization and acpi notify callback codeMarco Chiappero2012-05-31
| | | | | | | | | | | | | | | | | | Loop through the list of SNC handles and run the proper initialization function for each of the known handles. Also return void in function where we are not checking the return value anyway. For notifications we also know which handle is linked to the event and the code becomes simpler to read with a switch rather than using convoluted ifs. [malattia@linux.it: Code reworked to merge the initialization code improvements and the notify callback changes. Modified the code paths to allow easier error exit paths. Also fixed some missing break statements and spelling mistakes.] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: use kstrtoul to parse sysfs valuesMattia Dongili2012-05-31
| | | | | | | | This avoids surprises like echoing "enable" into a sysfs file and finding that the feature was actually disabled. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: generalise ACPI calls into SNC functionsMattia Dongili2012-05-31
| | | | | | | | | | | All calls into the SNC device methods have zero or one arguments and return an integer or a buffer (some functions go as far as returning an integer _or_ a buffer depending on the input parameter...). This allows simplifying a couple of code paths and prepares the field for other users of functions returning buffers. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: fix return path when no ACPI buffer is allocatedMattia Dongili2012-05-31
| | | | | | | | The goto target location would still try to free a buffer that was never allocated. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: use soft rfkill status stored in hwMarco Chiappero2012-05-31
| | | | | | | | | | | | The SNC device on recent Vaio laptops also stores the soft status and leaves it available after reboot. Use it and always set the last soft and hard status on module load. [malattia@linux.it: patch taken from a largely modified sony-laptop.c, smaller modifications to the original code to simplify it] Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* to fix scancodes returned by sony-laptop driverJohn Hughes2012-03-20
| | | | | | | | | | | | | | | | | | | | Fix scancodes returned by driver to match scancodes used to remap keys. (Before the patch FN/E returned scancode 0x1B, but to remap scancode 0x14 had to be used). The scancodes returned by the sony-laptop driver for function keys did not match the scancodes used to remap keys. Also, since the scancode was sent to the input subsystem after the mapped keysym the /lib/udev/keymap utility was confused about which scancode to report for which keysym. This patch fixes the driver so the correct scancode is shown for each key. It also adds to the documentation a description of where to find the scancodes. Signed-off-by: John Hughes <john@calva.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: Enable keyboard backlight by defaultJosh Boyer2012-03-20
| | | | | | | | | | | | | | | | | | | | | | | When the keyboard backlight support was originally added, the commit said to default it to on with a 10 second timeout. That actually wasn't the case, as the default value is commented out for the kbd_backlight parameter. Because it is a static variable, it gets set to 0 by default without some other form of initialization. However, it seems the function to set the value wasn't actually called immediately, so whatever state the keyboard was in initially would remain. Then commit df410d522410e67660 was introduced during the 2.6.39 timeframe to immediately set whatever value was present (as well as attempt to restore/reset the state on module removal or resume). That seems to have now forced the light off immediately when the module is loaded unless the option kbd_backlight=1 is specified. Let's enable it by default again (for the first time). This should solve https://bugzilla.redhat.com/show_bug.cgi?id=728478 Signed-off-by: Josh Boyer <jwboyer@redhat.com> Acked-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop:irq: Remove IRQF_DISABLEDYong Zhang2011-10-24
| | | | | | | | | | | | | Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* platform/x86:delete two unused variablesWeiping Pan2011-05-27
| | | | | | | | variable handle is not used in these two functions, just delete them. Signed-off-by: Weiping Pan <panweiping3@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: Add and use #define pr_fmtJoe Perches2011-05-27
| | | | | | | | | Add pr_fmt. Remove now unused #define DRV_PRX. Neaten dprintk macro. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* [PATCH] sony-laptop: limit brightness range to DSDT provided onesMattia Dongili2011-05-09
| | | | | | | | | | | The new style brightness control provides an operating range of 9 values (seems consistent over a large number of models sharing the same brightness control methods). Read and use the minimum and maximum values to limit the backlight interface between those boundaries. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: report failures on setting LCD brightnessMattia Dongili2011-05-09
| | | | | | | | Check if we were successful in setting the requested brightness and report failure in that case. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: keyboard backlight fixesMarco Chiappero2011-04-12
| | | | | | | | | | | | | Restore the original state on module removal, set the latest values on resume. When setting the keyboard backlight mode try to turn on/off backlight immediately. [malattia@linux.it: patch taken from a largely modified sony-laptop.c, ported and slightly modified to use defines already available.] Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: only show the handles sysfs file in debug modeMattia Dongili2011-04-12
| | | | | | | | It makes no sense to expose this type of information to userspace unless the driver was explicitly loaded with the debug option. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: fix early NULL pointer dereferenceMattia Dongili2011-04-04
| | | | | | | | | | | The SNC acpi driver could get early notifications before it fully initializes and that could lead to dereferencing the sony_nc_handles structure pointer that is still NULL at that stage. Make sure we return early from the handle lookup function in these cases. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* platform-drivers: x86: fix common misspellingsLucas De Marchi2011-03-28
| | | | | Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: potential null dereferenceDan Carpenter2011-03-28
| | | | | | | | In the original code, if "device_enum" was NULL then it would dereference it when it printed the error message. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: handle allocation failuresDan Carpenter2011-03-28
| | | | | | | | Return -ENOMEM if kzalloc() fails. The callers already handle error returns. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: return negative on failure in sony_nc_add()Dan Carpenter2011-03-28
| | | | | | | | There were two places in sony_nc_add() where we returned zero on failure instead of a negative error code. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: make a couple variables staticDan Carpenter2011-03-28
| | | | | | | Sparse complains that these variables should be static. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: implement new backlight control methodMattia Dongili2011-03-28
| | | | | | | | | | 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 Dongili2011-03-28
| | | | | | | | | | | 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 Dongili2011-03-28
| | | | | | | | | | 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 Dongili2011-03-28
| | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: use pr_<level> for messagesMattia Dongili2011-03-28
| | | | | 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 Dongili2011-03-28
| | | | | | | | | | 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 Dongili2011-03-28
| | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* backlight: add backlight typeMatthew Garrett2011-03-22
| | | | | | | | | | | | | | | | | | | There may be multiple ways of controlling the backlight on a given machine. Allow drivers to expose the type of interface they are providing, making it possible for userspace to make appropriate policy decisions. Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: David Airlie <airlied@linux.ie> Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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