spi: cadence: fix clock imbalance on probe failure

spi: cadence: fix clock imbalance on probe failure

commit ecea4f0e9db2fb6ab4a68a59c5aba0d8f59a9566 upstream.

Make sure that the controller is active before disabling clocks on probe
failure to avoid unbalanced clock disable.

Also drop the usage count before returning (so that the controller can
be suspended after a probe deferral) and restore the autosuspend
setting.

Fixes: d36ccd9f7ea4 ("spi: cadence: Runtime pm adaptation")
Cc: stable@vger.kernel.org	# 4.7
Cc: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260421123615.1533617-3-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>