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Kirill Smelkov
linux
Commits
0831e3e4
Commit
0831e3e4
authored
Oct 06, 2009
by
Russell King
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Plain Diff
ARM: iPAQ: provide a way to setup platform-controlled GPIOs
Signed-off-by:
Russell King
<
rmk+kernel@arm.linux.org.uk
>
parent
a5d176a1
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arch/arm/mach-sa1100/h3600.c
arch/arm/mach-sa1100/h3600.c
+42
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arch/arm/mach-sa1100/h3600.c
View file @
0831e3e4
...
...
@@ -28,6 +28,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/serial_core.h>
#include <linux/gpio.h>
#include <asm/irq.h>
#include <mach/hardware.h>
...
...
@@ -49,6 +50,47 @@
void
(
*
assign_h3600_egpio
)(
enum
ipaq_egpio_type
x
,
int
level
);
EXPORT_SYMBOL
(
assign_h3600_egpio
);
struct
gpio_default_state
{
int
gpio
;
int
mode
;
const
char
*
name
;
};
#define GPIO_MODE_IN -1
#define GPIO_MODE_OUT0 0
#define GPIO_MODE_OUT1 1
static
void
h3xxx_init_gpio
(
struct
gpio_default_state
*
s
,
size_t
n
)
{
while
(
n
--
)
{
const
char
*
name
=
s
->
name
;
int
err
;
if
(
!
name
)
name
=
"[init]"
;
err
=
gpio_request
(
s
->
gpio
,
name
);
if
(
err
)
{
printk
(
KERN_ERR
"gpio%u: unable to request: %d
\n
"
,
s
->
gpio
,
err
);
continue
;
}
if
(
s
->
mode
>=
0
)
{
err
=
gpio_direction_output
(
s
->
gpio
,
s
->
mode
);
}
else
{
err
=
gpio_direction_input
(
s
->
gpio
);
}
if
(
err
)
{
printk
(
KERN_ERR
"gpio%u: unable to set direction: %d
\n
"
,
s
->
gpio
,
err
);
continue
;
}
if
(
!
s
->
name
)
gpio_free
(
s
->
gpio
);
s
++
;
}
}
static
struct
mtd_partition
h3xxx_partitions
[]
=
{
{
.
name
=
"H3XXX boot firmware"
,
...
...
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