[PATCH] macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled

[Finn Thain]

drivers/macintosh/via-pmu-event.o: In function `via_pmu_event':
via-pmu-event.c:(.text+0x44): undefined reference to `input_event'
via-pmu-event.c:(.text+0x68): undefined reference to `input_event'
via-pmu-event.c:(.text+0x94): undefined reference to `input_event'
via-pmu-event.c:(.text+0xb8): undefined reference to `input_event'
drivers/macintosh/via-pmu-event.o: In function `via_pmu_event_init':
via-pmu-event.c:(.init.text+0x20): undefined reference to 
`input_allocate_device'
via-pmu-event.c:(.init.text+0xc4): undefined reference to 
`input_register_device'
via-pmu-event.c:(.init.text+0xd4): undefined reference to `input_free_device'
make[1]: *** [Makefile:1155: vmlinux] Error 1
make: *** [Makefile:350: __build_one_by_one] Error 2

Don't call into the input subsystem unless CONFIG_INPUT is built-in.

Reported-by: kernel test robot <l...@intel.com>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Geert Uytterhoeven <ge...@linux-m68k.org>
Signed-off-by: Finn Thain <fth...@linux-m68k.org>
---
 drivers/macintosh/Makefile  | 5 ++++-
 drivers/macintosh/via-pmu.c | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile
index 49819b1b6f20..eaf28b1c272f 100644
--- a/drivers/macintosh/Makefile
+++ b/drivers/macintosh/Makefile
@@ -12,7 +12,10 @@ obj-$(CONFIG_MAC_EMUMOUSEBTN)        += mac_hid.o
 obj-$(CONFIG_INPUT_ADBHID)     += adbhid.o
 obj-$(CONFIG_ANSLCD)           += ans-lcd.o
 
-obj-$(CONFIG_ADB_PMU)          += via-pmu.o via-pmu-event.o
+obj-$(CONFIG_ADB_PMU)          += via-pmu.o
+ifeq ($(CONFIG_INPUT), y)
+obj-$(CONFIG_ADB_PMU)          += via-pmu-event.o
+endif
 obj-$(CONFIG_ADB_PMU_LED)      += via-pmu-led.o
 obj-$(CONFIG_PMAC_BACKLIGHT)   += via-pmu-backlight.o
 obj-$(CONFIG_ADB_CUDA)         += via-cuda.o
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 4b98bc26a94b..55afa6dfa263 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -1457,12 +1457,14 @@ pmu_handle_data(unsigned char *data, int len)
                if (pmu_battery_count)
                        query_battery_state();
                pmu_pass_intr(data, len);
+#ifdef CONFIG_INPUT
                /* len == 6 is probably a bad check. But how do I
                 * know what PMU versions send what events here? */
                if (len == 6) {
                        via_pmu_event(PMU_EVT_POWER, !!(data[1]&8));
                        via_pmu_event(PMU_EVT_LID, data[1]&1);
                }
+#endif
                break;
 
        default:
-- 
2.32.0