soc/amd/picasso/soc_util: change return type of soc_is_*

All callers just check for zero/non-zero.

Change-Id: I795763ce882d879d12c97b71e7a0b35423378c36
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41559
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/soc/amd/picasso/include/soc/soc_util.h

@@ -3,6 +3,8 @@
 #ifndef __PICASSO_SOC_UTIL_H__
 #define __PICASSO_SOC_UTIL_H__
 
+#include <types.h>
+
 enum socket_type {
 	SOCKET_FP5 = 0,
 	SOCKET_AM4 = 2,
@@ -11,10 +13,10 @@ enum socket_type {
 
 void print_socket_type(void);
 
-int soc_is_pollock(void);
-int soc_is_dali(void);
-int soc_is_picasso(void);
-int soc_is_raven2(void);
-int soc_is_zen_plus(void);
+bool soc_is_pollock(void);
+bool soc_is_dali(void);
+bool soc_is_picasso(void);
+bool soc_is_raven2(void);
+bool soc_is_zen_plus(void);
 
 #endif /* __PICASSO_SOC_UTIL_H__ */

src/soc/amd/picasso/soc_util.c

@@ -37,7 +37,7 @@ void print_socket_type(void)
 	}
 }
 
-int soc_is_pollock(void)
+bool soc_is_pollock(void)
 {
 	return soc_is_zen_plus() && get_socket_type() == SOCKET_FT5;
 }
@@ -46,23 +46,23 @@ int soc_is_pollock(void)
  * TODO: This detection works for the Dali SKUs used in Chrome-devices, but fails for other
  * Dali SKUs, since other Dali SKUs have a Zen+ CPUID and not a Raven2 one.
  */
-int soc_is_dali(void)
+bool soc_is_dali(void)
 {
 	return soc_is_raven2() && get_socket_type() == SOCKET_FP5;
 }
 
-int soc_is_picasso(void)
+bool soc_is_picasso(void)
 {
 	return soc_is_zen_plus() && get_socket_type() == SOCKET_FP5;
 }
 
-int soc_is_raven2(void)
+bool soc_is_raven2(void)
 {
 	/* mask lower model number nibble and stepping */
 	return cpuid_eax(1) >> 8 == RAVEN2_CPUID >> 8;
 }
 
-int soc_is_zen_plus(void)
+bool soc_is_zen_plus(void)
 {
 	/* mask lower model number nibble and stepping */
 	return cpuid_eax(1) >> 8 == PICASSO_CPUID >> 8;