clk: renesas: rzg2l: Add support for enabling PLLs

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Add support for enabling PLL clocks in the RZ/G3L CPG driver to turn off
some PLLs, if they are not in use (e.g. PLL6, PLL7).

Introduce .is_enabled() and .enable() callbacks to handle PLL state
transitions.  With the .enable() callback, the PLL will be turned ON
only when the PLL consumer device is enabled; otherwise, it will remain
off.  Define new macros for PLL standby and monitor registers to
facilitate this process.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260326110648.29389-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

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Biju Das 2026-03-26 11:06:36 +00:00 • committed by Geert Uytterhoeven

parent 79b5d6970b

commit 78db1faa6b

2 changed files with 71 additions and 0 deletions

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67

drivers/clk/renesas/rzg2l-cpg.c

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4

drivers/clk/renesas/rzg2l-cpg.h

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