1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
Index: linux-3.1.1/drivers/cbus/retu.c
===================================================================
--- linux-3.1.1.orig/drivers/cbus/retu.c 2011-11-17 23:23:53.542699149 +0100
+++ linux-3.1.1/drivers/cbus/retu.c 2011-11-17 23:23:55.830689859 +0100
@@ -53,9 +53,6 @@ struct retu {
int irq;
- int ack;
- bool ack_pending;
-
int mask;
bool mask_pending;
@@ -191,9 +188,10 @@ static irqreturn_t retu_irq_handler(int
mutex_lock(&retu->mutex);
idr = __retu_read_reg(retu, RETU_REG_IDR);
imr = __retu_read_reg(retu, RETU_REG_IMR);
+ idr &= ~imr;
+ __retu_write_reg(retu, RETU_REG_IDR, idr);
mutex_unlock(&retu->mutex);
- idr &= ~imr;
if (!idr) {
dev_vdbg(retu->dev, "No IRQ, spurious?\n");
return IRQ_NONE;
@@ -232,15 +230,6 @@ static void retu_irq_unmask(struct irq_d
}
-static void retu_irq_ack(struct irq_data *data)
-{
- struct retu *retu = irq_data_get_irq_chip_data(data);
- int irq = data->irq;
-
- retu->ack |= (1 << (irq - retu->irq_base));
- retu->ack_pending = true;
-}
-
static void retu_bus_lock(struct irq_data *data)
{
struct retu *retu = irq_data_get_irq_chip_data(data);
@@ -257,11 +246,6 @@ static void retu_bus_sync_unlock(struct
retu->mask_pending = false;
}
- if (retu->ack_pending) {
- __retu_write_reg(retu, RETU_REG_IDR, retu->ack);
- retu->ack_pending = false;
- }
-
mutex_unlock(&retu->mutex);
}
@@ -271,7 +255,6 @@ static struct irq_chip retu_irq_chip = {
.irq_bus_sync_unlock = retu_bus_sync_unlock,
.irq_mask = retu_irq_mask,
.irq_unmask = retu_irq_unmask,
- .irq_ack = retu_irq_ack,
};
static inline void retu_irq_setup(int irq)
@@ -291,8 +274,7 @@ static void retu_irq_init(struct retu *r
for (irq = base; irq < end; irq++) {
irq_set_chip_data(irq, retu);
- irq_set_chip_and_handler(irq, &retu_irq_chip,
- handle_simple_irq);
+ irq_set_chip(irq, &retu_irq_chip);
irq_set_nested_thread(irq, 1);
retu_irq_setup(irq);
}
Index: linux-3.1.1/drivers/cbus/tahvo.c
===================================================================
--- linux-3.1.1.orig/drivers/cbus/tahvo.c 2011-11-17 23:23:54.358695836 +0100
+++ linux-3.1.1/drivers/cbus/tahvo.c 2011-11-17 23:23:55.830689859 +0100
@@ -48,11 +48,9 @@ struct tahvo {
int irq_end;
int irq;
- int ack;
int mask;
unsigned int mask_pending:1;
- unsigned int ack_pending:1;
unsigned int is_betty:1;
};
@@ -138,9 +136,12 @@ static irqreturn_t tahvo_irq_handler(int
u16 id;
u16 im;
+ mutex_lock(&tahvo->mutex);
id = __tahvo_read_reg(tahvo, TAHVO_REG_IDR);
im = __tahvo_read_reg(tahvo, TAHVO_REG_IMR);
id &= ~im;
+ __tahvo_write_reg(tahvo, TAHVO_REG_IDR, id);
+ mutex_unlock(&tahvo->mutex);
if (!id) {
dev_vdbg(tahvo->dev, "No IRQ, spurious ?\n");
@@ -177,11 +178,6 @@ static void tahvo_irq_bus_sync_unlock(st
tahvo->mask_pending = false;
}
- if (tahvo->ack_pending) {
- __tahvo_write_reg(tahvo, TAHVO_REG_IDR, tahvo->ack);
- tahvo->ack_pending = false;
- }
-
mutex_unlock(&tahvo->mutex);
}
@@ -203,22 +199,12 @@ static void tahvo_irq_unmask(struct irq_
tahvo->mask_pending = true;
}
-static void tahvo_irq_ack(struct irq_data *data)
-{
- struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
- int irq = data->irq;
-
- tahvo->ack |= (1 << (irq - tahvo->irq_base));
- tahvo->ack_pending = true;
-}
-
static struct irq_chip tahvo_irq_chip = {
.name = "tahvo",
.irq_bus_lock = tahvo_irq_bus_lock,
.irq_bus_sync_unlock = tahvo_irq_bus_sync_unlock,
.irq_mask = tahvo_irq_mask,
.irq_unmask = tahvo_irq_unmask,
- .irq_ack = tahvo_irq_ack,
};
static inline void tahvo_irq_setup(int irq)
@@ -238,8 +224,7 @@ static void tahvo_irq_init(struct tahvo
for (irq = base; irq < end; irq++) {
irq_set_chip_data(irq, tahvo);
- irq_set_chip_and_handler(irq, &tahvo_irq_chip,
- handle_simple_irq);
+ irq_set_chip(irq, &tahvo_irq_chip);
irq_set_nested_thread(irq, 1);
tahvo_irq_setup(irq);
}
|
