bsec: update bsec_write_debug_conf function type

Checking written value is useless, as local variables.
Set function type to void.

Change-Id: I5ecad094c2c91a2d5a233addbaba5f76c70eab20
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/tf-a/+/187859


Reviewed-by: CITOOLS <smet-aci-reviews@lists.codex.cro.st.com>
Reviewed-by: Yann GAUTIER <yann.gautier@st.com>

drivers/st/bsec/bsec2.c

@@ -620,24 +620,13 @@ uint32_t bsec_permanent_lock_otp(uint32_t otp)
  * bsec_write_debug_conf: write value in debug feature.
  *	to enable/disable debug service.
  * val: value to write.
- * return value: BSEC_OK if no error.
+ * return value: none.
  */
-uint32_t bsec_write_debug_conf(uint32_t val)
+void bsec_write_debug_conf(uint32_t val)
 {
-	uint32_t result = BSEC_ERROR;
-	uint32_t masked_val = val & BSEC_DEN_ALL_MSK;
-
 	bsec_lock();
-
-	mmio_write_32(bsec_base + BSEC_DEN_OFF, masked_val);
-
-	if ((mmio_read_32(bsec_base + BSEC_DEN_OFF) ^ masked_val) == 0U) {
-		result = BSEC_OK;
-	}
-
+	mmio_write_32(bsec_base + BSEC_DEN_OFF, val & BSEC_DEN_ALL_MSK);
 	bsec_unlock();
-
-	return result;
 }
 
 /*

include/drivers/st/bsec.h

 /*
- * Copyright (c) 2015-2019, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2015-2020, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -105,7 +105,7 @@ uint32_t bsec_write_otp(uint32_t val, uint32_t otp);
 uint32_t bsec_program_otp(uint32_t val, uint32_t otp);
 uint32_t bsec_permanent_lock_otp(uint32_t otp);
 
-uint32_t bsec_write_debug_conf(uint32_t val);
+void bsec_write_debug_conf(uint32_t val);
 uint32_t bsec_read_debug_conf(void);
 
 uint32_t bsec_get_status(void);