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nexedi
linux
Commits
402e4909
Commit
402e4909
authored
16 years ago
by
Russell King
Committed by
Russell King
16 years ago
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[ARM] pxa: make mainstone use the generic PWM backlight driver
Signed-off-by:
Russell King
<
rmk+kernel@arm.linux.org.uk
>
parent
5cca9147
Changes
2
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2 changed files
with
18 additions
and
46 deletions
+18
-46
arch/arm/mach-pxa/Kconfig
arch/arm/mach-pxa/Kconfig
+1
-0
arch/arm/mach-pxa/mainstone.c
arch/arm/mach-pxa/mainstone.c
+17
-46
No files found.
arch/arm/mach-pxa/Kconfig
View file @
402e4909
...
@@ -41,6 +41,7 @@ config MACH_LOGICPD_PXA270
...
@@ -41,6 +41,7 @@ config MACH_LOGICPD_PXA270
config MACH_MAINSTONE
config MACH_MAINSTONE
bool "Intel HCDDBBVA0 Development Platform"
bool "Intel HCDDBBVA0 Development Platform"
select PXA27x
select PXA27x
select HAVE_PWM
config ARCH_PXA_IDP
config ARCH_PXA_IDP
bool "Accelent Xscale IDP"
bool "Accelent Xscale IDP"
...
...
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Click to expand it.
arch/arm/mach-pxa/mainstone.c
View file @
402e4909
...
@@ -23,9 +23,9 @@
...
@@ -23,9 +23,9 @@
#include <linux/ioport.h>
#include <linux/ioport.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/partitions.h>
#include <linux/backlight.h>
#include <linux/input.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/gpio_keys.h>
#include <linux/pwm_backlight.h>
#include <asm/types.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/setup.h>
...
@@ -349,56 +349,27 @@ static struct platform_device mst_flash_device[2] = {
...
@@ -349,56 +349,27 @@ static struct platform_device mst_flash_device[2] = {
},
},
};
};
#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static
int
mainstone_backlight_update_status
(
struct
backlight_device
*
bl
)
static
struct
platform_pwm_backlight_data
mainstone_backlight_data
=
{
{
.
pwm_id
=
0
,
int
brightness
=
bl
->
props
.
brightness
;
.
max_brightness
=
1023
,
.
dft_brightness
=
1023
,
if
(
bl
->
props
.
power
!=
FB_BLANK_UNBLANK
||
.
pwm_period_ns
=
78770
,
bl
->
props
.
fb_blank
!=
FB_BLANK_UNBLANK
)
};
brightness
=
0
;
if
(
brightness
!=
0
)
pxa_set_cken
(
CKEN_PWM0
,
1
);
PWM_CTRL0
=
0
;
PWM_PWDUTY0
=
brightness
;
PWM_PERVAL0
=
bl
->
props
.
max_brightness
;
if
(
brightness
==
0
)
pxa_set_cken
(
CKEN_PWM0
,
0
);
return
0
;
/* pointless return value */
}
static
int
mainstone_backlight_get_brightness
(
struct
backlight_device
*
bl
)
{
return
PWM_PWDUTY0
;
}
static
/*const*/
struct
backlight_ops
mainstone_backlight_ops
=
{
static
struct
platform_device
mainstone_backlight_device
=
{
.
update_status
=
mainstone_backlight_update_status
,
.
name
=
"pwm-backlight"
,
.
get_brightness
=
mainstone_backlight_get_brightness
,
.
dev
=
{
.
parent
=
&
pxa27x_device_pwm0
.
dev
,
.
platform_data
=
&
mainstone_backlight_data
,
},
};
};
static
void
__init
mainstone_backlight_register
(
void
)
static
void
__init
mainstone_backlight_register
(
void
)
{
{
struct
backlight_device
*
bl
;
int
ret
=
platform_device_register
(
&
mainstone_backlight_device
);
if
(
ret
)
bl
=
backlight_device_register
(
"mainstone-bl"
,
&
pxa_device_fb
.
dev
,
printk
(
KERN_ERR
"mainstone: failed to register backlight device: %d
\n
"
,
ret
);
NULL
,
&
mainstone_backlight_ops
);
if
(
IS_ERR
(
bl
))
{
printk
(
KERN_ERR
"mainstone: unable to register backlight: %ld
\n
"
,
PTR_ERR
(
bl
));
return
;
}
/*
* broken design - register-then-setup interfaces are
* utterly broken by definition.
*/
bl
->
props
.
max_brightness
=
1023
;
bl
->
props
.
brightness
=
1023
;
backlight_update_status
(
bl
);
}
}
#else
#else
#define mainstone_backlight_register() do { } while (0)
#define mainstone_backlight_register() do { } while (0)
...
...
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