mirror of https://gitee.com/openkylin/linux.git
939c5a46e5
HSI2C_MASTER_ST_LOSE state is not documented properly, extensive tests show that hardware is usually able to recover from this state without interrupting the transfer. Moreover documentation says that such state can be caused by slave clock stretching, and should not be treated as an error during transaction. The only place it indicates an error is just before starting transaction. In such case bus recovery procedure should be performed - master should pulse SCL line nine times and then send STOP condition, it can be repeated until SDA goes high. The procedure can be performed using manual commands HSI2C_CMD_READ_DATA and HSI2C_CMD_SEND_STOP. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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README
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.