clk: ingenic: Add X1000 audio clocks

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The X1000's CGU supplies the I2S system clock to the AIC module
and ultimately the audio codec, represented by the "i2s" clock.
It is a simple mux which can either pass through EXCLK or a PLL
multiplied by a fractional divider (the "i2s_pll" clock).

The AIC contains a separate 1/N divider controlled by the I2S
driver, which generates the bit clock from the system clock.
The frame clock is always fixed to 1/64th of the bit clock.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20221026194345.243007-6-aidanmacdonald.0x0@gmail.com
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

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Aidan MacDonald 2022-10-26 20:43:44 +01:00 • committed by Stephen Boyd

parent 5e5b1005f9

commit 662e8ed7b9

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drivers/clk/ingenic/x1000-cgu.c

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