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-rw-r--r--drivers/comedi/drivers/pcl724.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/comedi/drivers/pcl724.c b/drivers/comedi/drivers/pcl724.c
index 00474710b81f..9707d0c89304 100644
--- a/drivers/comedi/drivers/pcl724.c
+++ b/drivers/comedi/drivers/pcl724.c
@@ -31,6 +31,8 @@
struct pcl724_board {
const char *name;
unsigned int io_range;
+ unsigned int min_io_start;
+ unsigned int max_io_end;
unsigned int can_have96:1;
unsigned int is_pet48:1;
int numofports;
@@ -40,37 +42,53 @@ static const struct pcl724_board boardtypes[] = {
{
.name = "pcl724",
.io_range = 0x04,
+ .min_io_start = 0x200,
+ .max_io_end = 0x3ff,
.numofports = 1, /* 24 DIO channels */
}, {
.name = "pcl722",
.io_range = 0x20,
+ .min_io_start = 0x200,
+ .max_io_end = 0x3ff,
.can_have96 = 1,
.numofports = 6, /* 144 (or 96) DIO channels */
}, {
.name = "pcl731",
.io_range = 0x08,
+ .min_io_start = 0,
+ .max_io_end = 0x3ff,
.numofports = 2, /* 48 DIO channels */
}, {
.name = "acl7122",
.io_range = 0x20,
+ .min_io_start = 0x200,
+ .max_io_end = 0x3ff,
.can_have96 = 1,
.numofports = 6, /* 144 (or 96) DIO channels */
}, {
.name = "acl7124",
.io_range = 0x04,
+ .min_io_start = 0x200,
+ .max_io_end = 0x3ff,
.numofports = 1, /* 24 DIO channels */
}, {
.name = "pet48dio",
.io_range = 0x02,
+ .min_io_start = 0,
+ .max_io_end = 0x3ff,
.is_pet48 = 1,
.numofports = 2, /* 48 DIO channels */
}, {
.name = "pcmio48",
.io_range = 0x08,
+ .min_io_start = 0x100,
+ .max_io_end = 0x17f,
.numofports = 2, /* 48 DIO channels */
}, {
.name = "onyx-mm-dio",
.io_range = 0x10,
+ .min_io_start = 0,
+ .max_io_end = 0x3ff,
.numofports = 2, /* 48 DIO channels */
},
};
@@ -112,7 +130,9 @@ static int pcl724_attach(struct comedi_device *dev,
n_subdevices = 4;
}
- ret = comedi_request_region(dev, it->options[0], iorange);
+ ret = comedi_check_request_region(dev, it->options[0], iorange,
+ board->min_io_start,
+ board->max_io_end, iorange);
if (ret)
return ret;