refactor(st-pmic): split initialize_pmic()

print_pmic_info_and_debug() prints the PMIC version ID and displays
regulator information if debug is enabled.
It is under DEBUG flag and called after initialize_pmic() in BL2.

Change-Id: Ib81a625740b7ec6abb49cfca05e44c69efaa4718
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>

drivers/st/pmic/stm32mp_pmic.c

@@ -270,8 +270,6 @@ static void register_pmic_shared_peripherals(void)
 
 void initialize_pmic(void)
 {
-	unsigned long pmic_version;
-
 	if (!initialize_pmic_i2c()) {
 		VERBOSE("No PMIC\n");
 		return;
@@ -279,6 +277,16 @@ void initialize_pmic(void)
 
 	register_pmic_shared_peripherals();
 
+	if (dt_pmic_configure_boot_on_regulators() < 0) {
+		panic();
+	};
+}
+
+#if DEBUG
+void print_pmic_info_and_debug(void)
+{
+	unsigned long pmic_version;
+
 	if (stpmic1_get_version(&pmic_version) != 0) {
 		ERROR("Failed to access PMIC\n");
 		panic();
@@ -286,13 +294,8 @@ void initialize_pmic(void)
 
 	INFO("PMIC version = 0x%02lx\n", pmic_version);
 	stpmic1_dump_regulators();
-
-#if defined(IMAGE_BL2)
-	if (dt_pmic_configure_boot_on_regulators() != 0) {
-		panic();
-	};
-#endif
 }
+#endif
 
 int pmic_ddr_power_init(enum ddr_type ddr_type)
 {

include/drivers/st/stm32mp_pmic.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2017-2021, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -41,6 +41,14 @@ bool initialize_pmic_i2c(void);
  */
 void initialize_pmic(void);
 
+#if DEBUG
+void print_pmic_info_and_debug(void);
+#else
+static inline void print_pmic_info_and_debug(void)
+{
+}
+#endif
+
 /*
  * pmic_ddr_power_init - Initialize regulators required for DDR
  *

plat/st/stm32mp1/bl2_plat_setup.c

@@ -273,6 +273,7 @@ void bl2_el3_plat_arch_setup(void)
 skip_console_init:
 	if (dt_pmic_status() > 0) {
 		initialize_pmic();
+		print_pmic_info_and_debug();
 	}
 
 	stm32mp1_syscfg_init();