Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
[SPARC64]: Probe for power device on ISA bus too.
Signed-off-by: David S. Miller <davem@davemloft.net>
+51
-13
arch/sparc64/kernel/power.c
+51
-13
arch/sparc64/kernel/power.c
···
17
18
#include <asm/system.h>
19
#include <asm/ebus.h>
20
#include <asm/auxio.h>
21
22
#include <linux/unistd.h>
···
101
return 0;
102
}
103
104
-
static int __init has_button_interrupt(struct linux_ebus_device *edev)
105
{
106
-
if (edev->irqs[0] == PCI_IRQ_NONE)
107
return 0;
108
-
if (!prom_node_has_property(edev->prom_node, "button"))
109
return 0;
110
111
return 1;
112
}
113
114
-
void __init power_init(void)
115
{
116
struct linux_ebus *ebus;
117
struct linux_ebus_device *edev;
118
static int invoked;
119
120
if (invoked)
121
return;
122
invoked = 1;
123
124
-
for_each_ebus(ebus) {
125
-
for_each_ebusdev(edev, ebus) {
126
-
if (!strcmp(edev->prom_name, "power"))
127
-
goto found;
128
-
}
129
-
}
130
return;
131
132
found:
133
-
power_reg = ioremap(edev->resource[0].start, 0x4);
134
printk("power: Control reg at %p ... ", power_reg);
135
poweroff_method = machine_halt; /* able to use the standard halt */
136
-
if (has_button_interrupt(edev)) {
137
if (kernel_thread(powerd, NULL, CLONE_FS) < 0) {
138
printk("Failed to start power daemon.\n");
139
return;
140
}
141
printk("powerd running.\n");
142
143
-
if (request_irq(edev->irqs[0],
144
power_handler, SA_SHIRQ, "power", NULL) < 0)
145
printk("power: Error, cannot register IRQ handler.\n");
146
} else {
···
17
18
#include <asm/system.h>
19
#include <asm/ebus.h>
20
+
#include <asm/isa.h>
21
#include <asm/auxio.h>
22
23
#include <linux/unistd.h>
···
100
return 0;
101
}
102
103
+
static int __init has_button_interrupt(unsigned int irq, int prom_node)
104
{
105
+
if (irq == PCI_IRQ_NONE)
106
return 0;
107
+
if (!prom_node_has_property(prom_node, "button"))
108
return 0;
109
110
return 1;
111
}
112
113
+
static int __init power_probe_ebus(struct resource **resp, unsigned int *irq_p, int *prom_node_p)
114
{
115
struct linux_ebus *ebus;
116
struct linux_ebus_device *edev;
117
+
118
+
for_each_ebus(ebus) {
119
+
for_each_ebusdev(edev, ebus) {
120
+
if (!strcmp(edev->prom_name, "power")) {
121
+
*resp = &edev->resource[0];
122
+
*irq_p = edev->irqs[0];
123
+
*prom_node_p = edev->prom_node;
124
+
return 0;
125
+
}
126
+
}
127
+
}
128
+
return -ENODEV;
129
+
}
130
+
131
+
static int __init power_probe_isa(struct resource **resp, unsigned int *irq_p, int *prom_node_p)
132
+
{
133
+
struct sparc_isa_bridge *isa_bus;
134
+
struct sparc_isa_device *isa_dev;
135
+
136
+
for_each_isa(isa_bus) {
137
+
for_each_isadev(isa_dev, isa_bus) {
138
+
if (!strcmp(isa_dev->prom_name, "power")) {
139
+
*resp = &isa_dev->resource;
140
+
*irq_p = isa_dev->irq;
141
+
*prom_node_p = isa_dev->prom_node;
142
+
return 0;
143
+
}
144
+
}
145
+
}
146
+
return -ENODEV;
147
+
}
148
+
149
+
void __init power_init(void)
150
+
{
151
+
struct resource *res = NULL;
152
+
unsigned int irq;
153
+
int prom_node;
154
static int invoked;
155
156
if (invoked)
157
return;
158
invoked = 1;
159
160
+
if (!power_probe_ebus(&res, &irq, &prom_node))
161
+
goto found;
162
+
163
+
if (!power_probe_isa(&res, &irq, &prom_node))
164
+
goto found;
165
+
166
return;
167
168
found:
169
+
power_reg = ioremap(res->start, 0x4);
170
printk("power: Control reg at %p ... ", power_reg);
171
poweroff_method = machine_halt; /* able to use the standard halt */
172
+
if (has_button_interrupt(irq, prom_node)) {
173
if (kernel_thread(powerd, NULL, CLONE_FS) < 0) {
174
printk("Failed to start power daemon.\n");
175
return;
176
}
177
printk("powerd running.\n");
178
179
+
if (request_irq(irq,
180
power_handler, SA_SHIRQ, "power", NULL) < 0)
181
printk("power: Error, cannot register IRQ handler.\n");
182
} else {