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path: root/drivers/rtc/rtc-hid-sensor-time.c
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2018-12-17iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbersHans de Goede
[ Upstream commit 0145b50566e7de5637e80ecba96c7f0e6fff1aad ] Before this commit sensor_hub_input_attr_get_raw_value() failed to take the signedness of 16 and 8 bit values into account, returning e.g. 65436 instead of -100 for the z-axis reading of an accelerometer. This commit adds a new is_signed parameter to the function and makes all callers pass the appropriate value for this. While at it, this commit also fixes up some neighboring lines where statements were needlessly split over 2 lines to improve readability. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2017-04-22rtc: hid-sensor-time: remove some dead codeDan Carpenter
devm_rtc_device_register() doesn't ever return NULL so there is no need to check. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: hid-sensor-time: Constify platform_device_idKrzysztof Kozlowski
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-02-23HID: hid-sensor-hub: Extend API for async readsSrinivas Pandruvada
Add additional flag to read in async mode. In this mode the caller will get reply via registered callback for capture_sample. Callbacks can be registered using sensor_hub_register_callback function. The usage id parameter of the capture_sample can be matched with the usage id of the requested attribute. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-10-20rtc: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-11-15tree-wide: use reinit_completion instead of INIT_COMPLETIONWolfram Sang
Use this new function to make code more comprehensible, since we are reinitialzing the completion, not initializing. [akpm@linux-foundation.org: linux-next resyncs] Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13) Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-15drivers/rtc/rtc-hid-sensor-time.c: enable HID input processing earlyAlexander Holler
Enable the processing of HID input records before the RTC will be registered, in order to allow the RTC register function to read clock. Without doing that the clock can only be read after the probe function has finished. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-15drivers/rtc/rtc-hid-sensor-time.c: use dev_get_platdata()Jingoo Han
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. This is a cosmetic change to make the code simpler and enhance the readability. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-10-01HID RTC: Open sensor hub open closeSrinivas Pandruvada
Open sensor hub when module is loaded and close when module is removed. This helps saving power by opening HID transport only when there is an user. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-11drivers/rtc/rtc-hid-sensor-time.c: improve error handling when rtc register ↵Alexander Holler
fails Stop processing hid input when registering the RTC fails and handle a NULL returned from devm_rtc_device_register() as a failure too. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-11drivers/rtc/rtc-hid-sensor-time.c: add module alias to let the module load ↵Alexander Holler
automatically In order to get the module automatically loaded by hotplug mechanisms a MODULE_DEVICE_TABLE is needed. Therefore add one. This makes it also possible to use a module name other than HID-SENSOR-2000a0 which isn't very descriptive in kernel messages. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03rtc: rtc-hid-sensor-time: allow 16 and 32 bit values for all attributes.Alexander Holler
There is no real reason to not support 16 or 32 bit values too. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Jiri Kosina <jkosina@suse.cz> Cc: John Stultz <john.stultz@linaro.org> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03rtc: rtc-hid-sensor-time: allow full years (16bit) in HID reportsAlexander Holler
The draft for HID-sensors (HUTRR39) currently doesn't define the range for the attribute year. Asking one of the authors revealed that full years (e.g. 2013 instead of just 13) were meant. So we now allow both, 8 bit and 16 bit values for the attribute year and assuming full years when the value is 16 bits wide. We will still support 8 bit values until the specification gets final (and maybe defines a way to set the time too). Signed-off-by: Alexander Holler <holler@ahsoftware.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Jiri Kosina <jkosina@suse.cz> Cc: John Stultz <john.stultz@linaro.org> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29rtc: hid-sensor-time: use devm_rtc_device_register()Jingoo Han
devm_rtc_device_register() is device managed and makes cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-26rtc: hid-sensor-time: Add missing spin_lock_initAxel Lin
Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-01-06hid: iio: rename struct hid_sensor_iio_common to hid_sensor_commoniio-for-3.9aAlexander Holler
The structure with common attributes for hid-sensors isn't specific to the iio-subsystem, so rename it to hid_sensor_common. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-01-06rtc: add rtc-driver for HID sensors of type timeAlexander Holler
This driver makes the time from HID sensors (hubs) which are offering such available like any other RTC does. It is necessary that all values like year, month etc, are send as 8bit values (1 byte each) and all of them in 1 report. Also the spec HUTRR39b doesn't define the range of the year field, we tread it as 0 - 99 because that's what most RTCs I know about are offering. Currently the time can only be read. Setting the time must be done through sending a report (or a feature). The spec currently doesn't define how and I'm not sure if I just should define something by myself. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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