diff mbox

[v2] omap-rng: Change RNG_CONFIG_REG to RNG_CONTROL_REG in init

Message ID 54E68B0F.6030307@analog.com (mailing list archive)
State Superseded
Delegated to: Herbert Xu
Headers show

Commit Message

Andre Wolokita Feb. 20, 2015, 1:17 a.m. UTC
omap4_rng_init() checks bit 10 of the RNG_CONFIG_REG to determine whether
the RNG is already running before performing any initiliasation. This is not
the correct register to check, as the enable bit is in RNG_CONFIG_CONTROL.
Read from RNG_CONTROL_REG instead.

Signed-off-by: Andre Wolokita <Andre.Wolokita@analog.com>
---
 drivers/char/hw_random/omap-rng.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index d14dcf7..ff74e5d 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -236,7 +236,7 @@  static int omap4_rng_init(struct omap_rng_dev *priv)
        u32 val;

        /* Return if RNG is already running. */
-       if (omap_rng_read(priv, RNG_CONFIG_REG) & RNG_CONTROL_ENABLE_TRNG_MASK)
+       if (omap_rng_read(priv, RNG_CONTROL_REG) & RNG_CONTROL_ENABLE_TRNG_MASK)
                return 0;

        val = RNG_CONFIG_MIN_REFIL_CYCLES << RNG_CONFIG_MIN_REFIL_CYCLES_SHIFT;