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Extended testing has shown that the imx ahci driver sometimes requires more than the 100 attempts currently alotted in the driver to perform a successful temperature reading when running at minimum (throttled) CPU frequency. Debugging suggests that the read cycle can take 160 attempts (which given that the driver averages 80 readings from the ADC equates to one failure on each read). Increase the attempt limit to 200 in order to greatly reduce the likelihood of the driver failing to perform a temperature reading, especially at low CPU frequency. Signed-off-by: Egor Starkov <egor.starkov@ge.com> Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Signed-off-by: Tejun Heo <tj@kernel.org> |
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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.