4 files changed, 9 insertions, 9 deletions
diff --git a/src/soc/amd/cezanne/config.c b/src/soc/amd/cezanne/config.c
index b5855eb40f..577f2aeb97 100644
--- a/src/soc/amd/cezanne/config.c
+++ b/src/soc/amd/cezanne/config.c
@@ -4,7 +4,7 @@
 #include <device/device.h>
 #include "chip.h"
 
-const struct soc_amd_common_config *soc_get_common_config()
+const struct soc_amd_common_config *soc_get_common_config(void)
 {
 	/* config_of_soc calls die() internally if cfg was NULL, so no need to re-check */
 	const struct soc_amd_cezanne_config *cfg = config_of_soc();
diff --git a/src/soc/amd/picasso/config.c b/src/soc/amd/picasso/config.c
index 577d7b29a8..f1384bb5b0 100644
--- a/src/soc/amd/picasso/config.c
+++ b/src/soc/amd/picasso/config.c
@@ -4,7 +4,7 @@
 #include <device/device.h>
 #include "chip.h"
 
-const struct soc_amd_common_config *soc_get_common_config()
+const struct soc_amd_common_config *soc_get_common_config(void)
 {
 	/* config_of_soc calls die() internally if cfg was NULL, so no need to re-check */
 	const struct soc_amd_picasso_config *cfg = config_of_soc();
diff --git a/src/soc/amd/sabrina/config.c b/src/soc/amd/sabrina/config.c
index ef1d5561d3..187f1664bc 100644
--- a/src/soc/amd/sabrina/config.c
+++ b/src/soc/amd/sabrina/config.c
@@ -6,7 +6,7 @@
 #include <device/device.h>
 #include "chip.h"
 
-const struct soc_amd_common_config *soc_get_common_config()
+const struct soc_amd_common_config *soc_get_common_config(void)
 {
 	/* config_of_soc calls die() internally if cfg was NULL, so no need to re-check */
 	const struct soc_amd_sabrina_config *cfg = config_of_soc();
diff --git a/src/soc/samsung/exynos5420/usb.c b/src/soc/samsung/exynos5420/usb.c
index ef2b18565e..352f6b5638 100644
--- a/src/soc/samsung/exynos5420/usb.c
+++ b/src/soc/samsung/exynos5420/usb.c
@@ -16,13 +16,13 @@ static void reset_dwc3(struct exynos5_usb_drd_dwc3 *dwc3)
 	setbits32(&dwc3->usb2phycfg, 0x1 << 31);	/* PHY soft reset */
 }
 
-void reset_usb_drd0_dwc3()
+void reset_usb_drd0_dwc3(void)
 {
 	printk(BIOS_DEBUG, "Starting DWC3 reset for USB DRD0\n");
 	reset_dwc3(exynos_usb_drd0_dwc3);
 }
 
-void reset_usb_drd1_dwc3()
+void reset_usb_drd1_dwc3(void)
 {
 	printk(BIOS_DEBUG, "Starting DWC3 reset for USB DRD1\n");
 	reset_dwc3(exynos_usb_drd1_dwc3);
@@ -58,13 +58,13 @@ static void setup_dwc3(struct exynos5_usb_drd_dwc3 *dwc3)
 		0x1 << 12);	/* port capability HOST */
 }
 
-void setup_usb_drd0_dwc3()
+void setup_usb_drd0_dwc3(void)
 {
 	setup_dwc3(exynos_usb_drd0_dwc3);
 	printk(BIOS_DEBUG, "DWC3 setup for USB DRD0 finished\n");
 }
 
-void setup_usb_drd1_dwc3()
+void setup_usb_drd1_dwc3(void)
 {
 	setup_dwc3(exynos_usb_drd1_dwc3);
 	printk(BIOS_DEBUG, "DWC3 setup for USB DRD1 finished\n");
@@ -121,14 +121,14 @@ static void setup_drd_phy(struct exynos5_usb_drd_phy *phy)
 	clrbits32(&phy->clkrst, 0x1 << 1);  /* deassert port reset */
 }
 
-void setup_usb_drd0_phy()
+void setup_usb_drd0_phy(void)
 {
 	printk(BIOS_DEBUG, "Powering up USB DRD0 PHY\n");
 	setbits32(&exynos_power->usb_drd0_phy_ctrl, POWER_USB_PHY_CTRL_EN);
 	setup_drd_phy(exynos_usb_drd0_phy);
 }
 
-void setup_usb_drd1_phy()
+void setup_usb_drd1_phy(void)
 {
 	printk(BIOS_DEBUG, "Powering up USB DRD1 PHY\n");
 	setbits32(&exynos_power->usb_drd1_phy_ctrl, POWER_USB_PHY_CTRL_EN);