修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/powerpc/platforms/8xx/m8xx_setup.c
..
..
@@ -39,12 +39,6 @@
39
39
 	return IRQ_HANDLED;
40
40
 }
41
41
 
42
-static struct irqaction tbint_irqaction = {
43
-	.handler = timebase_interrupt,
44
-	.flags = IRQF_NO_THREAD,
45
-	.name = "tbint",
46
-};
47
-
48
42
 /* per-board overridable init_internal_rtc() function. */
49
43
 void __init __attribute__ ((weak))
50
44
 init_internal_rtc(void)
..
..
@@ -66,7 +60,7 @@
66
60
 	int found = 0;
67
61
 
68
62
 	/* The cpu node should have timebase and clock frequency properties */
69
-	cpu = of_find_node_by_type(NULL, "cpu");
63
+	cpu = of_get_cpu_node(0, NULL);
70
64
 
71
65
 	if (cpu) {
72
66
 		fp = of_get_property(cpu, name, NULL);
..
..
@@ -147,8 +141,9 @@
147
141
 	 * we have to enable the timebase).  The decrementer interrupt
148
142
 	 * is wired into the vector table, nothing to do here for that.
149
143
 	 */
150
-	cpu = of_find_node_by_type(NULL, "cpu");
144
+	cpu = of_get_cpu_node(0, NULL);
151
145
 	virq= irq_of_parse_and_map(cpu, 0);
146
+	of_node_put(cpu);
152
147
 	irq = virq_to_hw(virq);
153
148
 
154
149
 	sys_tmr2 = immr_map(im_sit);
..
..
@@ -156,7 +151,8 @@
156
151
 					(TBSCR_TBF | TBSCR_TBE));
157
152
 	immr_unmap(sys_tmr2);
158
153
 
159
-	if (setup_irq(virq, &tbint_irqaction))
154
+	if (request_irq(virq, timebase_interrupt, IRQF_NO_THREAD, "tbint",
155
+			NULL))
160
156
 		panic("Could not allocate timer IRQ!");
161
157
 }
162
158