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path: root/drivers/platform/x86/classmate-laptop.c
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2013-12-07ACPI: Clean up inclusions of ACPI header filesLv Zheng1-2/+1
Replace direct inclusions of <acpi/acpi.h>, <acpi/acpi_bus.h> and <acpi/acpi_drivers.h>, which are incorrect, with <linux/acpi.h> inclusions and remove some inclusions of those files that aren't necessary. First of all, <acpi/acpi.h>, <acpi/acpi_bus.h> and <acpi/acpi_drivers.h> should not be included directly from any files that are built for CONFIG_ACPI unset, because that generally leads to build warnings about undefined symbols in !CONFIG_ACPI builds. For CONFIG_ACPI set, <linux/acpi.h> includes those files and for CONFIG_ACPI unset it provides stub ACPI symbols to be used in that case. Second, there are ordering dependencies between those files that always have to be met. Namely, it is required that <acpi/acpi_bus.h> be included prior to <acpi/acpi_drivers.h> so that the acpi_pci_root declarations the latter depends on are always there. And <acpi/acpi.h> which provides basic ACPICA type declarations should always be included prior to any other ACPI headers in CONFIG_ACPI builds. That also is taken care of including <linux/acpi.h> as appropriate. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Tony Luck <tony.luck@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> (drivers/pci stuff) Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> (Xen stuff) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-09-05platform: replace strict_strto*() with kstrto*()Jingoo Han1-1/+1
The usage of strict_strtoul() and strict_strtol() is not preferred, because strict_strtoul() and strict_strtol() are obsolete. Thus, kstrtoul() and kstrtol() should be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-01-26ACPI: Remove useless type argument of driver .remove() operationRafael J. Wysocki1-5/+5
The second argument of ACPI driver .remove() operation is only used by the ACPI processor driver and the value passed to that driver through it is always available from the given struct acpi_device object's removal_type field. For this reason, the second ACPI driver .remove() argument is in fact useless, so drop it. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Toshi Kani <toshi.kani@hp.com> Acked-by: Yinghai Lu <yinghai@kernel.org>
2012-08-17classmate-laptop: always call input_sync() after input_report_switch()Carlos Alberto Lopez Perez1-3/+9
Due to commit cdda911c34006f1089f3c87b1a1f31ab3a4722f2 evdev only becomes readable when the buffer contains an EV_SYN/SYN_REPORT event. So in order to read the tablet sensor data as it happens we need to ensure that we always call input_sync() after input_report_switch() Signed-off-by: Carlos Alberto Lopez Perez <clopez@igalia.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2012-08-10platform / x86 / PM: Fix unused function warnings for CONFIG_PM_SLEEPRafael J. Wysocki1-0/+4
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>
2012-07-28classmate-laptop: Fix extra keys hardware id.Miguel Gómez1-1/+1
Since ACPI devices ids were changed to use always upper-case letters, the ACPI id of the extra keys (FNBT0000) was not maching the one defined in the driver (FnBT0000), causing the extra keys not to work. The patch replaces the driver id with the one reported by ACPI, fixing the problem. Signed-off-by: Miguel Gómez <magomez@igalia.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2012-07-28classmate-laptop: Add support for Classmate V4 accelerometer.Miguel Gómez1-2/+401
Classmate V4 laptop includes a new accelerometer that can't be handled by previous driver. This patch adds a new driver to handle it. [mjg: Fixed up the driver pm stuff] Signed-off-by: Miguel Gómez <magomez@igalia.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2012-07-01classmate-laptop: Use struct dev_pm_ops for power managementRafael J. Wysocki1-5/+8
Make the classmate-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> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
2011-03-22backlight: add backlight typeMatthew Garrett1-0/+1
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>
2011-01-07classmate-laptop: add missing input_sync callHerton Ronaldo Krzesinski1-0/+1
Add missing input_sync call in cmpc_keys_handler function. Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
2011-01-07classmate-laptop: little optimization for cmpc_rfkill_blockHerton Ronaldo Krzesinski1-7/+9
We don't need to call bios/acpi (cmpc_set_rfkill_wlan) if the blocked state is already set to the same value (little optimization). This can happen for example if we initialize the module with same initial hardware state (rfkill core always call cmpc_rfkill_block on initialization here). Also GWRI method only accepts 0 or 1 for setting rfkill block, as can be seen on AML code from acpidump->DSDT from a classmate sample I have, so should be fine setting state only to 0 or 1 directly. Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
2011-01-07drivers/platform/x86: Remove unnecessary semicolonsJoe Perches1-1/+1
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2010-08-03classmate-laptop: make needlessly global symbols staticAxel Lin1-1/+1
cmpc_accel_sensitivity_attr is needlessly defined global. This patch makes the symbol static. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Cc: Daniel Oliveira Nascimento <don@syst.com.br> Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2010-08-03classmate-laptop: should check for NULL as retval for rfkill_allocThadeu Lima de Souza Cascardo1-5/+6
rfkill_alloc returns NULL when it fails if RFKILL is enabled. When RFKILL is disabled, its return value of ERR_PTR(-ENODEV) is OK to use as all rfkill functions will work with it, as they are simply empty stubs. Reported-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: platform-driver-x86@vger.kernel.org Cc: mjg@redhat.com Cc: don@syst.com.br Cc: rpurdie@rpsys.net Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2010-05-17classmate-laptop: Add RFKILL support.Thadeu Lima de Souza Cascardo1-22/+148
The RFKILL device shares the same ACPI device used for backlight. So, it required a new struct sharing both a backlight_device and a rfkill device. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo1-0/+1
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-16backlight: classmate-laptop - Fix missing registration failure handlingBruno Prémont1-1/+3
Check newly registered backlight_device for error and properly return error to parent. Mark struct backlight_ops as const. Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2010-03-16backlight: Allow properties to be passed at registrationMatthew Garrett1-3/+5
Values such as max_brightness should be set before backlights are registered, but the current API doesn't allow that. Add a parameter to backlight_device_register and update drivers to ensure that they set this correctly. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2010-03-01classmate-laptop: Added some keys present in other devicesThadeu Lima de Souza Cascardo1-0/+4
Some new devices have extra keys, which we add to our list. Currently, they all generate events that allow us to use a simple table/array, without need for the sparse keymap. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
2010-02-25classmate-laptop: use a single MODULE_DEVICE_TABLE to get correct aliasesThadeu Lima de Souza Cascardo1-10/+21
Instead of a MODULE_DEVICE_TABLE for every acpi_driver ids table, we create a table containing all ids to export to get a module alias for each one. This will fix automatic loading of the driver when one of the ACPI devices is not present (like the accelerometer, which is not present in some models). Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
2009-12-24classmate-laptop: add support for Classmate PC ACPI devicesThadeu Lima de Souza Cascardo1-0/+609
This add supports for devices like keyboard, backlight, tablet and accelerometer. This work is supported by International Syst S/A. [randy.dunlap@oracle.com: cmpc_acpi: depends on ACPI] [akpm@linux-foundation.org: readability tweaks] [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>