clk: spacemit: k3: fix missing /2 factor in i2s sysclk dividers

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The i2s{0,2,3,4,5}_sysclk_div DDNs have an additional fixed 1/2
divider in the hardware IP after the configurable divider, so the
real output rate is:

    rate = parent_rate * den / (num  * 2)

Set pre_div to 2 to account for it.

Fixes: e371a77255 ("clk: spacemit: k3: add the clock tree")
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://patch.msgid.link/20260717-k3-clk-fix-i2s-v1-3-e95001a692ee@linux.spacemit.com
Signed-off-by: Yixun Lan <dlan@kernel.org>

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Troy Mitchell 2026-07-17 00:26:03 -07:00 • committed by Yixun Lan

parent e6b17a690c

commit 8a7d4b1924

1 changed files with 5 additions and 5 deletions

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drivers/clk/spacemit/ccu-k3.c

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