[ARM] pxa: make LogicPD 270 use the generic PWM backlight driver
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index a20e4b1..f958403 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>
@@ -233,21 +234,20 @@
},
};
-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 +269,6 @@
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 12.1" TFT SVGA (LoLo display number 2) */
@@ -292,7 +291,6 @@
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 3.6" TFT QVGA (LoLo display number 3) */
@@ -315,7 +313,6 @@
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 6.4" TFT VGA (LoLo display number 5) */
@@ -338,7 +335,6 @@
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 10.4" TFT VGA (LoLo display number 7) */
@@ -361,7 +357,6 @@
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
/* 3.5" TFT QVGA (LoLo display number 8) */
@@ -384,7 +379,6 @@
.num_modes = 1,
.lccr0 = 0x07800080,
.lccr3 = 0x00400000,
- .pxafb_backlight_power = lpd270_backlight_power,
};
static struct pxafb_mach_info *lpd270_lcd_to_use;
@@ -414,6 +408,7 @@
static struct platform_device *platform_devices[] __initdata = {
&smc91x_device,
+ &lpd270_backlight_device,
&lpd270_audio_device,
&lpd270_flash_device[0],
&lpd270_flash_device[1],
@@ -454,6 +449,7 @@
* 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));