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| Filename | Latest commit message | Latest commit date |
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2ab5b72453
The bits for setting up the proximity diode were not setup correctly and this was causing the proximity sensor to not function correctly. This patch sets up the correct bit mask in tsl2x7x_chip_on() based on what the data sheet expects. From page 35 of the TSL2771 data sheet: https://ams.com/eng/content/download/250264/976045/file/TSL2771_DS000105_3-00.pdf - Bits 0-1 is the ALS gain control - Bits 2-3 is reserved (The proximity gain control on other tsl2x7x chips) - Bits 4-5 is the proximity diode select - Bits 6-7 is the LED drive strength tsl2x7x_chip_on() had the power and diode hardcoded, so these are extracted out into the settings so that these fields can be configured in the platform data. The default prox_gain is changed from 1 (2X gain) to 0 (1X gain) since the proximity gain control on the TSL2771, TMD2771, and other chips have these fields listed as reserved, and to write 0 into those bits. Verified that the proximity sensor now works correctly on a TSL2771 hooked up to a Raspberry Pi 2. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.