x86, mrst: Add i8042_detect API for Moorestwon platform

It will just return 0 as there is no i8042 controller

Signed-off-by: Feng Tang <[e-mail]>
LKML-Reference: <[e-mail]>
Acked-by: Dmitry Torokhov <[e-mail]>
Signed-off-by: H. Peter Anvin <[e-mail]>

arch/x86/kernel/mrst.c

···
 		setup_boot_APIC_clock();
 };
 
+/* MID systems don't have i8042 controller */
+static int mrst_i8042_detect(void)
+{
+	return 0;
+}
+
 /*
  * Moorestown specific x86_init function overrides and early setup
  * calls.
···
 	x86_cpuinit.setup_percpu_clockev = mrst_setup_secondary_clock;
 
 	x86_platform.calibrate_tsc = mrst_calibrate_tsc;
+	x86_platform.i8042_detect = mrst_i8042_detect;
 	x86_init.pci.init = pci_mrst_init;
 	x86_init.pci.fixup_irqs = x86_init_noop;