clk: renesas: rcar-gen3: Add boost support to Z clocks
Add support for switching the Z and Z2 clocks between normal and boost modes, by requesting clock rate changes to parent PLLs. Inspired by a patch in the BSP by Takeshi Kihara <takeshi.kihara.df@renesas.com>. Signed-off-by:Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
Stephen Boyd <sboyd@kernel.org> Reviewed-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Tested-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20210326120100.1577596-8-geert+renesas@glider.be
parent
3f707956
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