powerpc/pseries: Remove MPIC from pseries event sources

MPIC was only used by Power3 which is now unsupported, so remove MPIC
code. XICS is now the only supported interrupt controller for
pSeries so do some cleanups too.

Signed-off-by: Rashmica Gupta <rashmicy@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/platforms/pseries/event_sources.c b/arch/powerpc/platforms/pseries/event_sources.c
index 18380e8f6dfe7eb112de9026b42318da7de60799..a6ddca833119b17731c5c5cf1e8270bb780e6b31 100644 (file)
--- a/arch/powerpc/platforms/pseries/event_sources.c
+++ b/arch/powerpc/platforms/pseries/event_sources.c
@@ -26,48 +26,21 @@ void request_event_sources_irqs(struct device_node *np,
 {
        int i, index, count = 0;
        struct of_phandle_args oirq;
-       const u32 *opicprop;
-       unsigned int opicplen;
        unsigned int virqs[16];
 
-       /* Check for obsolete "open-pic-interrupt" property. If present, then
-        * map those interrupts using the default interrupt host and default
-        * trigger
-        */
-       opicprop = of_get_property(np, "open-pic-interrupt", &opicplen);
-       if (opicprop) {
-               opicplen /= sizeof(u32);
-               for (i = 0; i < opicplen; i++) {
-                       if (count > 15)
-                               break;
-                       virqs[count] = irq_create_mapping(NULL, *(opicprop++));
-                       if (virqs[count] == NO_IRQ) {
-                               pr_err("event-sources: Unable to allocate "
-                                      "interrupt number for %s\n",
-                                      np->full_name);
-                               WARN_ON(1);
-                       }
-                       else
-                               count++;
-
-               }
-       }
-       /* Else use normal interrupt tree parsing */
-       else {
-               /* First try to do a proper OF tree parsing */
-               for (index = 0; of_irq_parse_one(np, index, &oirq) == 0;
-                    index++) {
-                       if (count > 15)
-                               break;
-                       virqs[count] = irq_create_of_mapping(&oirq);
-                       if (virqs[count] == NO_IRQ) {
-                               pr_err("event-sources: Unable to allocate "
-                                      "interrupt number for %s\n",
-                                      np->full_name);
-                               WARN_ON(1);
-                       }
-                       else
-                               count++;
+       /* First try to do a proper OF tree parsing */
+       for (index = 0; of_irq_parse_one(np, index, &oirq) == 0;
+            index++) {
+               if (count > 15)
+                       break;
+               virqs[count] = irq_create_of_mapping(&oirq);
+               if (virqs[count] == NO_IRQ) {
+                       pr_err("event-sources: Unable to allocate "
+                              "interrupt number for %s\n",
+                              np->full_name);
+                       WARN_ON(1);
+               } else {
+                       count++;
                }
        }