soc/amd/common/block/lpc/spi_dma: Use mutex to protect DMA registers

Once we enable COOP_MULTITASKING, we need to guarantee that we don't
have multiple threads trying to access the DMA hardware.

BUG=b:179699789
TEST=Boot guybrush with APOB patches.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ibb8e31c95d6722521425772f4210af45626c8e09
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56231
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions