soc/intel/broadwell; Use boolean for pch_is_wpt_xx

Use boolean for pch_is_wpt() and pch_is_wpt_ulx().

Change-Id: Ifd1a46ebdbe08df6cc21ada100b94930b02cd7de
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83903
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: coreboot org <coreboot.org@gmail.com>

src/soc/intel/broadwell/include/soc/pch.h

@@ -3,6 +3,8 @@
 #ifndef _BROADWELL_PCH_H_
 #define _BROADWELL_PCH_H_
 
+#include <stdbool.h>
+
 /* Haswell ULT Pch (LynxPoint-LP) */
 #define PCH_LPT_LP_SAMPLE	0x9c41
 #define PCH_LPT_LP_PREMIUM	0x9c43
@@ -25,8 +27,8 @@
 
 u8 pch_revision(void);
 u16 pch_type(void);
-int pch_is_wpt(void);
-int pch_is_wpt_ulx(void);
+bool pch_is_wpt(void);
+bool pch_is_wpt_ulx(void);
 u32 pch_read_soft_strap(int id);
 void pch_disable_devfn(struct device *dev);
 

src/soc/intel/broadwell/pch/adsp.c

@@ -13,6 +13,7 @@
 #include <soc/rcba.h>
 #include <soc/intel/broadwell/pch/chip.h>
 #include <southbridge/intel/lynxpoint/iobp.h>
+#include <stdbool.h>
 
 static void adsp_init(struct device *dev)
 {

src/soc/intel/broadwell/pch/lpc.c

@@ -22,6 +22,7 @@
 #include <southbridge/intel/common/rtc.h>
 #include <southbridge/intel/lynxpoint/iobp.h>
 #include <southbridge/intel/lynxpoint/lp_gpio.h>
+#include <stdbool.h>
 
 static void pch_enable_ioapic(struct device *dev)
 {

src/soc/intel/broadwell/pch/pch.c

@@ -10,6 +10,7 @@
 #include <soc/serialio.h>
 #include <soc/spi.h>
 #include <southbridge/intel/lynxpoint/iobp.h>
+#include <stdbool.h>
 
 u8 pch_revision(void)
 {
@@ -21,14 +22,14 @@ u16 pch_type(void)
 	return pci_read_config16(PCH_DEV_LPC, PCI_DEVICE_ID);
 }
 
-/* Return 1 if PCH type is WildcatPoint */
-int pch_is_wpt(void)
+/* Return true if PCH type is WildcatPoint */
+bool pch_is_wpt(void)
 {
-	return ((pch_type() & 0xfff0) == 0x9cc0) ? 1 : 0;
+	return ((pch_type() & 0xfff0) == 0x9cc0) ? true : false;
 }
 
-/* Return 1 if PCH type is WildcatPoint ULX */
-int pch_is_wpt_ulx(void)
+/* Return true if PCH type is WildcatPoint ULX */
+bool pch_is_wpt_ulx(void)
 {
 	u16 lpcid = pch_type();
 
@@ -36,10 +37,10 @@ int pch_is_wpt_ulx(void)
 	case PCH_WPT_BDW_Y_SAMPLE:
 	case PCH_WPT_BDW_Y_PREMIUM:
 	case PCH_WPT_BDW_Y_BASE:
-		return 1;
+		return true;
 	}
 
-	return 0;
+	return false;
 }
 
 u32 pch_read_soft_strap(int id)