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* Merge branch 'for-linus' of ↵Linus Torvalds2015-09-1215-15/+947
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull more input updates from Dmitry Torokhov: "Second round of updates for the input subsystem. This introduces two brand new touchscreen drivers (Colibri and imx6ul_tsc), some small driver fixes, and we are no longer report errors from evdev_flush() as users do not really have a way of handling errors, error codes that we were returning were not on the list of errors supposed to be returned by close(), and errors were causing issues with one of older versions of systemd" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: imx_keypad - remove obsolete comment Input: touchscreen - add imx6ul_tsc driver support Input: Add touchscreen support for Colibri VF50 Input: i8042 - lower log level for "no controller" message Input: evdev - do not report errors form flush() Input: elants_i2c - extend the calibration timeout to 12 seconds Input: sparcspkr - fix module autoload for OF platform drivers Input: regulator-haptic - fix module autoload for OF platform driver Input: pwm-beeper - fix module autoload for OF platform driver Input: ab8500-ponkey - Fix module autoload for OF platform driver Input: cyttsp - remove unnecessary MODULE_ALIAS() Input: elan_i2c - add ACPI ID "ELAN1000"
| * Merge branch 'next' into for-linusDmitry Torokhov2015-09-1115-15/+947
| |\ | | | | | | | | | Prepare second round of input updates for 4.3 merge window.
| | * Input: imx_keypad - remove obsolete commentFabio Estevam2015-09-051-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | Since commit 81e8f2bc (Input: imx_keypad - add pm suspend and resume support) the imx_keypad driver supports power management, so let's remove the obsolete comment. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: touchscreen - add imx6ul_tsc driver supportHaibo Chen2015-09-053-0/+536
| | | | | | | | | | | | | | | | | | | | | Freescale i.MX6UL contains a internal touchscreen controller, this patch add a driver to support this controller. Signed-off-by: Haibo Chen <haibo.chen@freescale.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: Add touchscreen support for Colibri VF50Sanchayan Maity2015-09-053-0/+399
| | | | | | | | | | | | | | | | | | | | | | | | The Colibri Vybrid VF50 module supports 4-wire touchscreens using FETs and ADC inputs. This driver uses the IIO consumer interface and relies on the vf610_adc driver based on the IIO framework. Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: i8042 - lower log level for "no controller" messageTakashi Iwai2015-09-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Nowadays the machines without i8042 controller is popular, and no need to print "No controller found" message in the error log level, which annoys at booting in quiet mode. Let's lower it info level. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: evdev - do not report errors form flush()Takashi Iwai2015-09-041-9/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We've got bug reports showing the old systemd-logind (at least system-210) aborting unexpectedly, and this turned out to be because of an invalid error code from close() call to evdev devices. close() is supposed to return only either EINTR or EBADFD, while the device returned ENODEV. logind was overreacting to it and decided to kill itself when an unexpected error code was received. What a tragedy. The bad error code comes from flush fops, and actually evdev_flush() returns ENODEV when device is disconnected or client's access to it is revoked. But in these cases the fact that flush did not actually happen is not an error, but rather normal behavior. For non-disconnected devices result of flush is also not that interesting as there is no potential of data loss and even if it fails application has no way of handling the error. Because of that we are better off always returning success from evdev_flush(). Also returning EINTR from flush()/close() is discouraged (as it is not clear how application should handle this error), so let's stop taking evdev->mutex interruptibly. Bugzilla: http://bugzilla.suse.com/show_bug.cgi?id=939834 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: elants_i2c - extend the calibration timeout to 12 secondsJames Chen2015-09-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The 23 inch device found in Chrome project buddy requires 9.2~10.5 seconds to complete calibration. Let's increase calibration timeout to 12 seconds to give the device enough time. Signed-off-by: James Chen <james.chen@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: sparcspkr - fix module autoload for OF platform driversLuis de Bethencourt2015-09-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | These platform drivers have a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: regulator-haptic - fix module autoload for OF platform driverLuis de Bethencourt2015-09-031-0/+1
| | | | | | | | | | | | | | | | | | | | | This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: pwm-beeper - fix module autoload for OF platform driverLuis de Bethencourt2015-09-031-0/+1
| | | | | | | | | | | | | | | | | | | | | This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: ab8500-ponkey - Fix module autoload for OF platform driverLuis de Bethencourt2015-09-031-0/+1
| | | | | | | | | | | | | | | | | | | | | This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: cyttsp - remove unnecessary MODULE_ALIAS()Javier Martinez Canillas2015-09-032-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | The drivers have a I2C device ID table that is used to create the module aliases and also "cyttsp" and "cyttsp4" are not supported I2C device IDs so these module aliases are never used. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * Input: elan_i2c - add ACPI ID "ELAN1000"João Paulo Rechi Vita2015-09-031-0/+1
| | | | | | | | | | | | | | | | | | This ACPI ID present in the DSDT of the ASUS E202SA laptop. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | | Merge branch 'next' of ↵Linus Torvalds2015-09-121-4/+4
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal updates from Zhang Rui: - use int instead of unsigned long to represent temperature to avoid bogus overheat detection when negative temperature reported. From Sascha Hauer. - export available thermal governors information to user space via sysfs. From Wei Ni. - introduce new thermal driver for Wildcat Point platform controller hub, which uses PCH thermal sensor and associated critical and hot trip points. From Tushar Dave. - add suuport for Intel Skylake and Denlow platforms in powerclamp driver. - some small cleanups in thermal core. * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: Add Intel PCH thermal driver thermal: Add comment explaining test for critical temperature thermal: Use IS_ENABLED instead of #ifdef thermal: remove unnecessary call to thermal_zone_device_set_polling thermal: trivial: fix typo in comment thermal: consistently use int for temperatures thermal: add available policies sysfs attribute thermal/powerclamp: add cpu id for denlow platform thermal/powerclamp: add cpu id for Skylake u/y thermal/powerclamp: add cpu id for skylake h/s
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| *-. \ \ Merge branches 'thermal-core' and 'thermal-intel' of .git into nextZhang Rui2015-09-021-4/+4
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| | * | | | thermal: consistently use int for temperaturesSascha Hauer2015-08-031-4/+4
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The thermal code uses int, long and unsigned long for temperatures in different places. Using an unsigned type limits the thermal framework to positive temperatures without need. Also several drivers currently will report temperatures near UINT_MAX for temperatures below 0°C. This will probably immediately shut the machine down due to overtemperature if started below 0°C. 'long' is 64bit on several architectures. This is not needed since INT_MAX °mC is above the melting point of all known materials. Consistently use a plain 'int' for temperatures throughout the thermal code and the drivers. This only changes the places in the drivers where the temperature is passed around as pointer, when drivers internally use another type this is not changed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Peter Feuerer <peter@piie.net> Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Jean Delvare <jdelvare@suse.de> Cc: Peter Feuerer <peter@piie.net> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-acpi@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Cc: Guenter Roeck <linux@roeck-us.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Darren Hart <dvhart@infradead.org> Cc: lm-sensors@lm-sensors.org Signed-off-by: Zhang Rui <rui.zhang@intel.com>
* | | | | Merge tag 'for-linus-4.3-rc0b-tag' of ↵Linus Torvalds2015-09-111-2/+2
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen terminology fixes from David Vrabel: "Use the correct GFN/BFN terms more consistently" * tag 'for-linus-4.3-rc0b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/xenbus: Rename the variable xen_store_mfn to xen_store_gfn xen/privcmd: Further s/MFN/GFN/ clean-up hvc/xen: Further s/MFN/GFN clean-up video/xen-fbfront: Further s/MFN/GFN clean-up xen/tmem: Use xen_page_to_gfn rather than pfn_to_gfn xen: Use correctly the Xen memory terminologies arm/xen: implement correctly pfn_to_mfn xen: Make clear that swiotlb and biomerge are dealing with DMA address
| * | | | | xen: Use correctly the Xen memory terminologiesJulien Grall2015-09-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on include/xen/mm.h [1], Linux is mistakenly using MFN when GFN is meant, I suspect this is because the first support for Xen was for PV. This resulted in some misimplementation of helpers on ARM and confused developers about the expected behavior. For instance, with pfn_to_mfn, we expect to get an MFN based on the name. Although, if we look at the implementation on x86, it's returning a GFN. For clarity and avoid new confusion, replace any reference to mfn with gfn in any helpers used by PV drivers. The x86 code will still keep some reference of pfn_to_mfn which may be used by all kind of guests No changes as been made in the hypercall field, even though they may be invalid, in order to keep the same as the defintion in xen repo. Note that page_to_mfn has been renamed to xen_page_to_gfn to avoid a name to close to the KVM function gfn_to_page. Take also the opportunity to simplify simple construction such as pfn_to_mfn(page_to_pfn(page)) into xen_page_to_gfn. More complex clean up will come in follow-up patches. [1] http://xenbits.xen.org/gitweb/?p=xen.git;a=commitdiff;h=e758ed14f390342513405dd766e874934573e6cb Signed-off-by: Julien Grall <julien.grall@citrix.com> Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
* | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2015-09-0478-1268/+2961
|\ \ \ \ \ \ | | |_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem updates from Dmitry Torokhov: "Drivers, drivers, drivers... No interesting input core changes this time" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (74 commits) Input: elan_i2c - use iap_version to get firmware information Input: max8997_haptic - fix module alias Input: elan_i2c - fix typos for validpage_count Input: psmouse - add small delay for IBM trackpoint pass-through mode Input: synaptics - fix handling of disabling gesture mode Input: elan_i2c - enable ELAN0100 acpi panels Input: gpio-keys - report error when disabling unsupported key Input: sur40 - fix error return code Input: sentelic - silence some underflow warnings Input: zhenhua - switch to using bitrev8() Input: cros_ec_keyb - replace KEYBOARD_CROS_EC dependency Input: cap11xx - add LED support Input: elants_i2c - fix for devm_gpiod_get API change Input: elan_i2c - enable asynchronous probing Input: elants_i2c - enable asynchronous probing Input: elants_i2c - wire up regulator support Input: do not emit unneeded EV_SYN when suspending Input: elants_i2c - disable idle mode before updating firmware MAINTAINERS: Add maintainer for atmel_mxt_ts Input: atmel_mxt_ts - remove warning on zero T44 count ...
| * | | | | Merge branch 'next' into for-linusDmitry Torokhov2015-09-0382-1301/+3471
| |\ \ \ \ \ | | | |_|_|/ | | |/| | | | | | | | | Prepare first round of input updates for 4.3 merge window.
| | * | | | Input: elan_i2c - use iap_version to get firmware informationDuson Lin2015-09-031-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When driver is in IAP mode ic_type query may return 0xff. However iap_version will always be valid, so let's use it to determine parameters of the firmware that the controller is supposed to accept. Signed-off-by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: max8997_haptic - fix module aliasJavier Martinez Canillas2015-08-291-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver is a platform driver and not a I2C driver so its modalias should be exported with MODULE_DEVICE_TABLE(platform,...) instead of MODULE_DEVICE_TABLE(i2c,...). Also, remove the unnecessary MODULE_ALIAS("platform:max8997-haptic") now that the correct module alias is created. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: elan_i2c - fix typos for validpage_countBenson Leung2015-08-291-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Search for "vaildpage_count" and replace with "validpage_count". Signed-off-by: Benson Leung <bleung@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: psmouse - add small delay for IBM trackpoint pass-through modeStefan Assmann2015-08-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are trackpoint devices that fail to respond to the PS2 command PSMOUSE_CMD_GETID if immediately queried after the parent device is deactivated. Add a small delay for the hardware to get in a sane state before sending any PS2 commands. One example of such a system is: Lenovo ThinkPad X120e, model 30515QG synaptics: Touchpad model: 1, fw: 8.0, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x121c00, board id: 1811, fw id: 797391 Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: elan_i2c - enable ELAN0100 acpi panelsMichele Curti2015-08-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable ELAN0100 touchpad driver, found on a Asus X205TA laptop, to gai 2,3 fingers tap and 2 fingers scroll. Signed-off-by: Michele Curti <michele.curti@gmail.com> Reviewed-by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: gpio-keys - report error when disabling unsupported keyPeng Fan2015-08-241-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When trying to disable a key that is not supported by the device we should report error, not do nothing and report success: root@yocto:/sys/devices/soc0/gpio-keys# cat keys 114-116 root@yocto:/sys/devices/soc0/gpio-keys# echo 77 > keys root@yocto:/sys/devices/soc0/gpio-keys# We want 'echo 77 > keys' to report an error, but silence to give us an illusion that all is 'ok'. Signed-off-by: Peng Fan <van.freenix@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: sur40 - fix error return codeJulia Lawall2015-08-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Propagate error code on failure, or upper layers will be confused by returned 0 (success) code. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: sentelic - silence some underflow warningsDan Carpenter2015-08-211-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have a static checker that complains when we check for an upper bound but don't have a corresponding check for a lower bound. With this code, the upper bound check seems not really required, so it is not a bug to leave the lower bound check out as well. But let's silence the warning by making these variables unsigned. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: zhenhua - switch to using bitrev8()Yalin Wang2015-08-211-11/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of custom zhenhua_bitreverse() let's use generic bitrev8(). Signed-off-by: Yalin Wang <yalin.wang2010@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: cros_ec_keyb - replace KEYBOARD_CROS_EC dependencyJavier Martinez Canillas2015-08-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ChromeOS EC keyboard driver config depends on CROS_EC_PROTO but MFD_CROS_EC selects CROS_EC_PROTO instead. Mixing select and depends on is bad practice as it may lead to circular Kconfig dependencies. Since the platform device that is matched with the keyboard driver is registered by the ChromeOS EC mfd driver, KEYBOARD_CROS_EC really should depend on MFD_CROS_EC. And because this config option selects CROS_EC_PROTO, that dependency is met as well. So make the driver to depend on MFD_CROS_EC instead of CROS_EC_PROTO. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: cap11xx - add LED supportMatt Ranostay2015-08-171-3/+141
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several cap11xx variants have LEDs that be can be controlled; let's plug the driver into the LED subsystem. Signed-off-by: Matt Ranostay <mranostay@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: elants_i2c - fix for devm_gpiod_get API changeStephen Rothwell2015-08-141-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Flags are now mandatory for devm_gpiod_get(). So let's use proper flag to configure gpio for output instead of doing this by hand. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> [Dmitry: GPIOD_ASIS -> GPIOD_OUT_LOW] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: elan_i2c - enable asynchronous probingDmitry Torokhov2015-08-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It takes a bit of time to go through controller power up sequence and initialization. To not stall the overall boot progress let's probe the controller asynchronously, given that userspace is usually prepared for hot-plugging of input devices and thus does not rely on particular ordering. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: elants_i2c - enable asynchronous probingDmitry Torokhov2015-08-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It takes a bit of time to go through controller power up sequence and initialization. To not stall the overall boot progress let's probe the controller asynchronously, given that userspace is usually prepared for hot-plugging of input devices and thus does not rely on particular ordering. Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: elants_i2c - wire up regulator supportDmitry Torokhov2015-08-071-22/+162
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Elan touchscreen controllers use two power supplies, vcc33 and vccio, and we need to enable them before trying to access the device. On X86 firmware usually does this, but on ARM it is usually left to the kernel. Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Reviewed-by: Benson Leung <bleung@chromium.org> Reviewed-by: Scott Liu <scott.liu@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: do not emit unneeded EV_SYN when suspendingDmitry Torokhov2015-08-071-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not emit EV_SYN/SYN_REPORT on suspend if there were no keys that are still pressed as we are suspending the device (and in all other cases when input core is forcibly releasing keys via input_dev_release_keys() call). Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: elants_i2c - disable idle mode before updating firmwareJames Chen2015-08-051-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the device is in idle mode and is in the middle of a scan it may not have a chance to react to the reset and then IAP commands within required time interval and firmware update may fail. Let's bring the device out of idle mode before attempting to reset it so that the scan period is smaller and thus it can react to the command quicker. Signed-off-by: James Chen <james.chen@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: atmel_mxt_ts - remove warning on zero T44 countNick Dyer2015-08-051-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: atmel_mxt_ts - initialise input slots with INPUT_MT_DIRECTNick Dyer2015-08-051-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This indicates the device coordinates should be directly mapped to screen. This is valid since scaling/flipping/rotation should be done by configuring the MXT device. It also flags to Android using INPUT_PROP_DIRECT that the device should be treated as a touch screen by default, and removes the necessity for a default IDC file. Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: atmel_mxt_ts - disable interrupt for 50ms after resetNick Dyer2015-08-051-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CHG/interrupt line is momentarily set (approximately 100 ms) as an input after power-up or reset for diagnostic purposes. This may cause spurious interrupts, so disable interrupt handler during this period. Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: atmel_mxt_ts - improve device tree parsingNick Dyer2015-08-051-13/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use function rather than loop, define np to reduce wrapping. Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: atmel_mxt_ts - suspend/resume causes panic if input_dev fails to initPan Xinhui2015-08-051-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | input_dev may be NULL if mxt_initialize_input_device fails. But pm ops is still available and suspend/resume assume input_dev is not NULL. To fix this issue, we add a check if (!input_dev). Signed-off-by: Pan Xinhui <xinhuix.pan@intel.com> Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: atmel_mxt_ts - remove unused definesNick Dyer2015-08-051-65/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many of these values are out of date and they aren't used in the driver - all they do is increase the size of the kernel source. Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> Acked-by: Benson Leung <bleung@chromium.org> Acked-by: Yufeng Shen <miletus@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: atmel_mxt_ts - use deep sleep mode when stoppedNick Dyer2015-08-051-11/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hardcoded 0x83 CTRL setting overrides other settings in that byte, enabling extra reporting that may not be useful on a particular platform. Implement improved suspend mechanism via deep sleep. By writing zero to both the active and idle cycle times the maXTouch device can be put into a deep sleep mode, using minimal power. It is necessary to issue a calibrate command after the chip has spent any time in deep sleep, however a soft reset is unnecessary. Use the old method on Chromebook Pixel via platform data option. This patch also deals with the situation where the power configuration is zero on probe, which would mean that the device never wakes up to execute commands. After a config download, the T7 power configuration may have changed so it is necessary to re-read it. Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> Acked-by: Benson Leung <bleung@chromium.org> Acked-by: Yufeng Shen <miletus@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: Allow compile test of GPIO consumers if !GPIOLIBGeert Uytterhoeven2015-08-044-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer functionality only, can still be compiled if GPIOLIB is not enabled. Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where appropriate. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: zforce - make the interrupt GPIO optionalDirk Behme2015-08-031-14/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for hardware which uses an I2C Serializer / Deserializer (SerDes) to communicate with the zFroce touch driver. In this case the SerDes will be configured as an interrupt controller and the zForce driver will have no access to poll the GPIO line. To support this, we add two dedicated new GPIOs in the device tree: reset-gpios and irq-gpios, with the irq-gpios being optional. To not break the existing device trees, the index based 'gpios' entries are still supported, but marked as deprecated. With this, if the interrupt GPIO is available, either via the old or new device tree style, the while loop will read and handle the packets as long as the GPIO indicates that the interrupt is asserted (existing, unchanged driver behavior). If the interrupt GPIO isn't available, i.e. not configured via the new device tree style, we are falling back to one read per ISR invocation (new behavior to support the SerDes). Note that the gpiod functions help to handle the optional GPIO: devm_gpiod_get_index_optional() will return NULL in case the interrupt GPIO isn't available. And gpiod_get_value_cansleep() does cover this, too, by returning 0 in this case. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Reviewed-by: Heiko Stuebner <heiko.stuebner@bq.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: cyapa - do not try to enable proximity reporting on older devicesDudley Du2015-07-301-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid the driver generate warning message when the cyapa driver working with the old Gen5 trackpad device which does not support the proximity function. Those old Gen5 trackpad device all have the platform version less than 2. Signed-off-by: Dudley Du <dudl@cypress.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: cyapa - introduce device tree bindingDudley Du2015-07-301-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add device tree support for Cypress trackpad devices. Signed-off-by: Dudley Du <dudl@cypress.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | | | Input: cyapa - add regulator vcc supportDudley Du2015-07-302-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to power up the chip before we can initialize it. On systems that delegate task of powering up regulators to firmware we assume that we'll be simply given a dummy regulator. Signed-off-by: Dudley Du <dudl@cypress.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 12:47:54 +0100