Commit 9ad92bdf authored Oct 07, 2015 by Lee Jones Committed by Herbert Xu Oct 08, 2015

hwrng: st - Improve FIFO size/depth description



The original representation of FIFO size in the driver coupled with the
ambiguity in the documentation meant that it was easy to confuse readers.
This lead to a false positive BUG-find and subsequently time wastage
debugging this phantom issue.

Hopefully this patch can prevent future readers from falling into the
same trap.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

parent 93d649bd

drivers/char/hw_random/st-rng.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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