tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
[PATCH] ARM: 2715/1: restore CPLD interrupts upon resume for Lubbock and Mainstone
Patch from Nicolas Pitre
Without this some devices fail to work again after a suspend event.
Signed-off-by: Nicolas Pitre
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
authored by
Nicolas Pitre
and committed by
Russell King
22f11c4e
95220a2e
+60
-1
+30
arch/arm/mach-pxa/lubbock.c
+30
arch/arm/mach-pxa/lubbock.c
···
15
15
#include <linux/kernel.h>
16
16
#include <linux/init.h>
17
17
#include <linux/device.h>
18
+
#include <linux/sysdev.h>
18
19
#include <linux/major.h>
19
20
#include <linux/fb.h>
20
21
#include <linux/interrupt.h>
···
106
105
set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
107
106
set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
108
107
}
108
+
109
+
#ifdef CONFIG_PM
110
+
111
+
static int lubbock_irq_resume(struct sys_device *dev)
112
+
{
113
+
LUB_IRQ_MASK_EN = lubbock_irq_enabled;
114
+
return 0;
115
+
}
116
+
117
+
static struct sysdev_class lubbock_irq_sysclass = {
118
+
set_kset_name("cpld_irq"),
119
+
.resume = lubbock_irq_resume,
120
+
};
121
+
122
+
static struct sys_device lubbock_irq_device = {
123
+
.cls = &lubbock_irq_sysclass,
124
+
};
125
+
126
+
static int __init lubbock_irq_device_init(void)
127
+
{
128
+
int ret = sysdev_class_register(&lubbock_irq_sysclass);
129
+
if (ret == 0)
130
+
ret = sysdev_register(&lubbock_irq_device);
131
+
return ret;
132
+
}
133
+
134
+
device_initcall(lubbock_irq_device_init);
135
+
136
+
#endif
109
137
110
138
static int lubbock_udc_is_connected(void)
111
139
{
+30
-1
arch/arm/mach-pxa/mainstone.c
+30
-1
arch/arm/mach-pxa/mainstone.c
···
15
15
16
16
#include <linux/init.h>
17
17
#include <linux/device.h>
18
+
#include <linux/sysdev.h>
18
19
#include <linux/interrupt.h>
19
20
#include <linux/sched.h>
20
21
#include <linux/bitops.h>
···
63
62
.unmask = mainstone_unmask_irq,
64
63
};
65
64
66
-
67
65
static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc,
68
66
struct pt_regs *regs)
69
67
{
···
99
99
set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
100
100
set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
101
101
}
102
+
103
+
#ifdef CONFIG_PM
104
+
105
+
static int mainstone_irq_resume(struct sys_device *dev)
106
+
{
107
+
MST_INTMSKENA = mainstone_irq_enabled;
108
+
return 0;
109
+
}
110
+
111
+
static struct sysdev_class mainstone_irq_sysclass = {
112
+
set_kset_name("cpld_irq"),
113
+
.resume = mainstone_irq_resume,
114
+
};
115
+
116
+
static struct sys_device mainstone_irq_device = {
117
+
.cls = &mainstone_irq_sysclass,
118
+
};
119
+
120
+
static int __init mainstone_irq_device_init(void)
121
+
{
122
+
int ret = sysdev_class_register(&mainstone_irq_sysclass);
123
+
if (ret == 0)
124
+
ret = sysdev_register(&mainstone_irq_device);
125
+
return ret;
126
+
}
127
+
128
+
device_initcall(mainstone_irq_device_init);
129
+
130
+
#endif
102
131
103
132
104
133
static struct resource smc91x_resources[] = {