clk: meson: migrate plls clocks to clk_regmap
Rework meson pll driver to use clk_regmap and move meson8b, gxbb and axg's clock using meson_clk_pll to clk_regmap. This rework is not just about clk_regmap, there a serious clean-up of the driver code: * Add lock and reset field: Previously inferred from the n field. * Simplify the reset logic: Code seemed to apply reset differently but in fact it was always the same -> assert reset, apply params, de-assert reset. The 2 lock checking loops have been kept for now, as they seem to be necessary. * Do the sequence of init register pokes only at .init() instead of in .set_rate(). Redoing the init on every set_rate() is not necessary Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
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