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Generally, the output clock pin is only used for testing and only serves as a source of RF noise after this. It could be used to daisy-chain PHYs, but this is uncommon. Since the PHY can disable the output, make doing so an option. I do this by adding another enumeration to the allowed values of ti,clk-output-sel. The code was not using the value DP83867_CLK_O_SEL_REF_CLK as one might expect: to select the REF_CLK as the output. Rather it meant "keep clock output setting as is", which, depending on PHY strapping, might not be outputting REF_CLK. Change this so DP83867_CLK_O_SEL_REF_CLK means enable REF_CLK output. Omitting the property will leave the setting as is (which was the previous behavior in this case). Out of range values were silently converted into DP83867_CLK_O_SEL_REF_CLK. Change this so they generate an error. Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.