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a6a70a670c
Add support for customized parent indices for MediaTek muxes: this is necessary for the case in which we want to exclude some clocks from a mux's parent clocks list, where the exclusions are not from the very bottom of the list but either in the middle or the beginning. Example: - MUX1 (all parents) - parent1; idx=0 - parent2; idx=1 - parent3; idx=2 - MUX1 (wanted parents) - parent1; idx=0 - parent3; idx=2 To achieve that add a `parent_index` array pointer to struct mtk_mux, then in .set_parent(), .get_parent() callbacks check if this array was populated and eventually get the index from that. Also, to avoid updating all clock drivers for all SoCs, rename the "main" macro to __GATE_CLR_SET_UPD_FLAGS (so, `__` was added) and add the new member to it; furthermore, GATE_CLK_SET_UPD_FLAGS has been reintroduced as being fully compatible with the older version. The new parent_index can be specified with the new `_INDEXED` variants of the MUX_GATE_CLR_SET_UPD_xxxx macros. Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20231103102533.69280-2-angelogioacchino.delregno@collabora.com Tested-by: Fei Shao <fshao@chromium.org> Reviewed-by: Fei Shao <fshao@chromium.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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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.