The header `pmac.h` was not included, leading to the following warnings,
treated as error with W=1:

  arch/powerpc/platforms/powermac/time.c:69:13: error: no previous prototype for ‘pmac_time_init’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/powermac/time.c:207:15: error: no previous prototype for ‘pmac_get_boot_time’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/powermac/time.c:222:6: error: no previous prototype for ‘pmac_get_rtc_time’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/powermac/time.c:240:5: error: no previous prototype for ‘pmac_set_rtc_time’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/powermac/time.c:259:12: error: no previous prototype for ‘via_calibrate_decr’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/powermac/time.c:311:13: error: no previous prototype for ‘pmac_calibrate_decr’ [-Werror=missing-prototypes]

The function `via_calibrate_decr` was made static to silence a warning.

Signed-off-by: Mathieu Malaterre <redacted>
---
 arch/powerpc/platforms/powermac/time.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c
index 274af6fa388e..5cc6fa40fcc4 100644
--- a/arch/powerpc/platforms/powermac/time.c
+++ b/arch/powerpc/platforms/powermac/time.c

@@ -34,6 +34,8 @@
 #include <asm/nvram.h>
 #include <asm/smu.h>
 
+#include "pmac.h"
+
 #undef DEBUG
 
 #ifdef DEBUG

@@ -256,7 +258,7 @@ int pmac_set_rtc_time(struct rtc_time *tm)
  * Calibrate the decrementer register using VIA timer 1.
  * This is used both on powermacs and CHRP machines.
  */
-int __init via_calibrate_decr(void)
+static int __init via_calibrate_decr(void)
 {
 	struct device_node *vias;
 	volatile unsigned char __iomem *via;

-- 
2.11.0