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commit10b74af310upstream. In commit4e7cf74fa3("clk: fractional-divider: Export approximation algorithm to the CCF users"), the code handling the rational best approximation algorithm was replaced by a call to the core clk_fractional_divider_general_approximation function which did the same thing back then. However, in commit82f53f9ee5("clk: fractional-divider: Introduce POWER_OF_TWO_PS flag"), this common code was made conditional on CLK_FRAC_DIVIDER_POWER_OF_TWO_PS flag which was not added back to the rockchip clock driver. This broke the ltk050h3146w-a2 MIPI DSI display present on a PX30-based downstream board. Let's add the flag to the fractional divider flags so that the original and intended behavior is brought back to the rockchip clock drivers. Fixes:82f53f9ee5("clk: fractional-divider: Introduce POWER_OF_TWO_PS flag") Cc: stable@vger.kernel.org Cc: Quentin Schulz <foss+kernel@0leil.net> Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com> Link: https://lore.kernel.org/r/20220131163224.708002-1-quentin.schulz@theobroma-systems.com Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.