[PATCH] clk: rockchip: rk3588: don't disable unused I2S MCLK output gates

[Igor Paunovic]

Hi,

Independent reproduction and a Tested-by for this fix, on a third board
family: Orange Pi 5 Plus (rk3588, es8388 clocked from I2S0_8CH_MCLKOUT).

On v7.2-rc6 without this patch the analog codec is completely dead in
both directions - playback silent, capture records exact digital zeroes -
because clk_disable_unused() closes the new i2s0_8ch_mclkout_to_io GRF
gate at the end of boot: SYS_GRF SOC_CON6 reads 0x7c7 (bit 0 set) while
the clock tree shows i2s0_8ch_mclkout enabled for the codec and
i2s0_8ch_mclkout_to_io with an enable count of 0. Re-opening the gate by
hand over /dev/mem brings the codec back the same second, and with the
gate held open the board plays and records normally.

Tested-by: Igor Paunovic <royalnet026 at gmail.com>

On scale: grepping v7.2-rc6, every rk3588 board DTS that clocks its
codec from an I2S MCLKOUT still references the plain id rather than the
_TO_IO one - I count 21 files (es8316/es8388/es8323/rt5616/nau8822
across the Orange Pi 5 family, ROCK 5A/5B/5B+/5T/5C/ITX, NanoPC-T6,
CM3588, ArmSoM, CoolPi, the EVBs, QuartzPro64, Gameforce Ace and
Firefly) - so all of these ship with broken analog audio if v7.2 goes
final without this fix. Is anything still blocking it from going in
with the next -rc?

Thanks,
Igor