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Diffstat (limited to 'arch/arm/mach-pxa/lpd270.c')
-rw-r--r--arch/arm/mach-pxa/lpd270.c55
1 files changed, 25 insertions, 30 deletions
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index a20e4b1649d..cc1c4fa0614 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -23,6 +23,7 @@
#include <linux/ioport.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <linux/pwm_backlight.h>
#include <asm/types.h>
#include <asm/setup.h>
@@ -134,9 +135,12 @@ static struct sys_device lpd270_irq_device = {
static int __init lpd270_irq_device_init(void)
{
- int ret = sysdev_class_register(&lpd270_irq_sysclass);
- if (ret == 0)
- ret = sysdev_register(&lpd270_irq_device);
+ int ret = -ENODEV;
+ if (machine_is_logicpd_pxa270()) {
+ ret = sysdev_class_register(&lpd270_irq_sysclass);
+ if (ret == 0)
+ ret = sysdev_register(&lpd270_irq_device);
+ }
return ret;
}
@@ -164,11 +168,6 @@ static struct platform_device smc91x_device = {
.resource = smc91x_resources,
};
-static struct platform_device lpd270_audio_device = {
- .name = "pxa2xx-ac97",
- .id = -1,
-};
-
static struct resource lpd270_flash_resources[] = {
[0] = {
.start = PXA_CS0_PHYS,
@@ -233,21 +232,20 @@ static struct platform_device lpd270_flash_device[2] = {
},
};
-static void lpd270_backlight_power(int on)
-{
- if (on) {
- pxa_gpio_mode(GPIO16_PWM0_MD);
- pxa_set_cken(CKEN_PWM0, 1);
- PWM_CTRL0 = 0;
- PWM_PWDUTY0 = 0x3ff;
- PWM_PERVAL0 = 0x3ff;
- } else {
- PWM_CTRL0 = 0;
- PWM_PWDUTY0 = 0x0;
- PWM_PERVAL0 = 0x3FF;
- pxa_set_cken(CKEN_PWM0, 0);
- }
-}
+static struct platform_pwm_backlight_data lpd270_backlight_data = {
+ .pwm_id = 0,
+ .max_brightness = 1,
+ .dft_brightness = 1,
+ .pwm_period_ns = 78770,
+};
+
+static struct platform_device lpd270_backlight_device = {
+ .name = "pwm-backlight",
+ .dev = {
+ .parent = &pxa27x_device_pwm0.dev,
+ .platform_data = &lpd270_backlight_data,
+ },
+};
/* 5.7" TFT QVGA (LoLo display number 1) */
static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
@@ -269,7 +267,6 @@ static struct pxafb_mach_info sharp_lq057q3dc02 = {
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 12.1" TFT SVGA (LoLo display number 2) */
@@ -292,7 +289,6 @@ static struct pxafb_mach_info sharp_lq121s1dg31 = {
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 3.6" TFT QVGA (LoLo display number 3) */
@@ -315,7 +311,6 @@ static struct pxafb_mach_info sharp_lq036q1da01 = {
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 6.4" TFT VGA (LoLo display number 5) */
@@ -338,7 +333,6 @@ static struct pxafb_mach_info sharp_lq64d343 = {
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 10.4" TFT VGA (LoLo display number 7) */
@@ -361,7 +355,6 @@ static struct pxafb_mach_info sharp_lq10d368 = {
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 3.5" TFT QVGA (LoLo display number 8) */
@@ -384,7 +377,6 @@ static struct pxafb_mach_info sharp_lq035q7db02_20 = {
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
static struct pxafb_mach_info *lpd270_lcd_to_use;
@@ -414,7 +406,7 @@ __setup("lcd=", lpd270_set_lcd);
static struct platform_device *platform_devices[] __initdata = {
&smc91x_device,
- &lpd270_audio_device,
+ &lpd270_backlight_device,
&lpd270_flash_device[0],
&lpd270_flash_device[1],
};
@@ -454,9 +446,12 @@ static void __init lpd270_init(void)
* On LogicPD PXA270, we route AC97_SYSCLK via GPIO45.
*/
pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD);
+ pxa_gpio_mode(GPIO16_PWM0_MD);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+ pxa_set_ac97_info(NULL);
+
if (lpd270_lcd_to_use != NULL)
set_pxa_fb_info(lpd270_lcd_to_use);