[PATCH 1/1] rng: stm32mp1: use log() instead of printf()

[Heinrich Schuchardt]

The logging system provides flexible filtering and enhanced output.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 drivers/rng/stm32mp1_rng.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/rng/stm32mp1_rng.c b/drivers/rng/stm32mp1_rng.c
index 7ef7ff9756..c1bae180f7 100644
--- a/drivers/rng/stm32mp1_rng.c
+++ b/drivers/rng/stm32mp1_rng.c
@@ -3,6 +3,8 @@
  * Copyright (c) 2019, Linaro Limited
  */

+#define LOG_CATEGORY UCLASS_RNG
+
 #include <common.h>
 #include <clk.h>
 #include <dm.h>
@@ -53,7 +55,7 @@ static int stm32_rng_read(struct udevice *dev, void *data, size_t len)
 			for (i = 0; i < 12; i++)
 				readl(pdata->base + RNG_DR);
 			if (readl(pdata->base + RNG_SR) & RNG_SR_SEIS) {
-				printf("RNG Noise");
+				log_err("RNG Noise");
 				return -EIO;
 			}
 			/* start again */
--
2.28.0