drivers: stm32_bsec: fix debug not open on MP1

Align MP1 behaviour with MP2.
We open the full debug even if the debug configuration return 0.
Reading the debug configuration does not make any sense since we are
opening the full debug all the bits.

Change-Id: I06702e9f2fbf3be02a679d8842036fa5e2c82244
Signed-off-by: Thomas Bourgoin <[email protected]>
Reviewed-on: https://gerrit.st.com/c/mpu/oe/optee/optee_os/+/533365
ACI: CITOOLS <[email protected]>
Domain-Review: Yann GAUTIER <[email protected]>
ACI: CIBUILD <[email protected]>

Author: tbourgoi

core/arch/arm/plat-stm32mp1/main.c

@@ -534,19 +534,18 @@ static bool __maybe_unused bank_is_valid(unsigned int bank)
 static TEE_Result init_debug(void)
 {
 	TEE_Result res = TEE_SUCCESS;
-	uint32_t conf = stm32_bsec_read_debug_conf();
 	struct clk *dbg_clk = stm32mp_rcc_clock_id_to_clk(CK_DBG);
 	uint32_t state = 0;
 
 	res = stm32_bsec_get_state(&state);
 	if (res)
 		return res;
 
-	if (state != BSEC_STATE_SEC_CLOSED && conf) {
+	if (state != BSEC_STATE_SEC_CLOSED) {
 		if (IS_ENABLED(CFG_INSECURE))
 			IMSG("WARNING: All debug accesses are allowed");
 
-		res = stm32_bsec_write_debug_conf(conf | STM32_BSEC_DEBUG_ALL);
+		res = stm32_bsec_write_debug_conf(STM32_BSEC_DEBUG_ALL);
 		if (res)
 			return res;