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-rw-r--r--drivers/char/hw_random/st-rng.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/hw_random/st-rng.c b/drivers/char/hw_random/st-rng.c
index 17f0a092bf24..1d35363d23c5 100644
--- a/drivers/char/hw_random/st-rng.c
+++ b/drivers/char/hw_random/st-rng.c
@@ -29,8 +29,9 @@
#define ST_RNG_STATUS_BAD_ALTERNANCE BIT(1)
#define ST_RNG_STATUS_FIFO_FULL BIT(5)
-#define ST_RNG_FIFO_SIZE 8
#define ST_RNG_SAMPLE_SIZE 2 /* 2 Byte (16bit) samples */
+#define ST_RNG_FIFO_DEPTH 4
+#define ST_RNG_FIFO_SIZE (ST_RNG_FIFO_DEPTH * ST_RNG_SAMPLE_SIZE)
/*
* Samples are documented to be available every 0.667us, so in theory
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