ARM: clps711x: Moving backlight controls of framebuffer driver to the board
This patch moves the backlight controls for clps711x-framebuffer driver
to the board code. To control we use "generic-bl" driver.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
[olof: fixed space/tab whitespace in drivers/video/clps711xfb.c]
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/arm/mach-clps711x/edb7211.c b/arch/arm/mach-clps711x/edb7211.c
index 81cc683..d5832b3 100644
--- a/arch/arm/mach-clps711x/edb7211.c
+++ b/arch/arm/mach-clps711x/edb7211.c
@@ -13,6 +13,7 @@
#include <linux/memblock.h>
#include <linux/types.h>
#include <linux/interrupt.h>
+#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <asm/setup.h>
@@ -30,6 +31,7 @@
#define EDB7211_LCD_DC_DC_EN CLPS711X_GPIO(3, 1)
#define EDB7211_LCDEN CLPS711X_GPIO(3, 2)
+#define EDB7211_LCDBL CLPS711X_GPIO(3, 3)
#define EDB7211_CS8900_BASE (CS2_PHYS_BASE + 0x300)
#define EDB7211_CS8900_IRQ (IRQ_EINT3)
@@ -56,9 +58,22 @@
.set_power = edb7211_lcd_power_set,
};
+static void edb7211_lcd_backlight_set_intensity(int intensity)
+{
+ gpio_set_value(EDB7211_LCDBL, intensity);
+}
+
+static struct generic_bl_info edb7211_lcd_backlight_pdata = {
+ .name = "lcd-backlight.0",
+ .default_intensity = 0x01,
+ .max_intensity = 0x01,
+ .set_bl_intensity = edb7211_lcd_backlight_set_intensity,
+};
+
static struct gpio edb7211_gpios[] __initconst = {
{ EDB7211_LCD_DC_DC_EN, GPIOF_OUT_INIT_LOW, "LCD DC-DC" },
{ EDB7211_LCDEN, GPIOF_OUT_INIT_LOW, "LCD POWER" },
+ { EDB7211_LCDBL, GPIOF_OUT_INIT_LOW, "LCD BACKLIGHT" },
};
static struct map_desc edb7211_io_desc[] __initdata = {
@@ -117,6 +132,9 @@
platform_device_register_data(&platform_bus, "platform-lcd", 0,
&edb7211_lcd_power_pdata,
sizeof(edb7211_lcd_power_pdata));
+ platform_device_register_data(&platform_bus, "generic-bl", 0,
+ &edb7211_lcd_backlight_pdata,
+ sizeof(edb7211_lcd_backlight_pdata));
platform_device_register_simple("video-clps711x", 0, NULL, 0);
platform_device_register_simple("cs89x0", 0, edb7211_cs8900_resource,
ARRAY_SIZE(edb7211_cs8900_resource));
diff --git a/arch/arm/mach-clps711x/include/mach/hardware.h b/arch/arm/mach-clps711x/include/mach/hardware.h
index 6acf714..1ebf7b9 100644
--- a/arch/arm/mach-clps711x/include/mach/hardware.h
+++ b/arch/arm/mach-clps711x/include/mach/hardware.h
@@ -81,10 +81,4 @@
#endif /* CONFIG_ARCH_EDB7211 */
-/*
- * Relevant bits in port D, which controls power to the various parts of
- * the LCD on the EDB7211.
- */
-#define EDB_PD3_LCDBL (1<<3)
-
#endif
diff --git a/arch/arm/mach-clps711x/p720t.c b/arch/arm/mach-clps711x/p720t.c
index e25f10e..1518fc8 100644
--- a/arch/arm/mach-clps711x/p720t.c
+++ b/arch/arm/mach-clps711x/p720t.c
@@ -25,6 +25,8 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/leds.h>
+#include <linux/sizes.h>
+#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
@@ -33,7 +35,6 @@
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/setup.h>
-#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -103,6 +104,21 @@
.set_power = p720t_lcd_power_set,
};
+static void p720t_lcd_backlight_set_intensity(int intensity)
+{
+ if (intensity)
+ PLD_PWR |= PLD_S3_ON;
+ else
+ PLD_PWR = 0;
+}
+
+static struct generic_bl_info p720t_lcd_backlight_pdata = {
+ .name = "lcd-backlight.0",
+ .default_intensity = 0x01,
+ .max_intensity = 0x01,
+ .set_bl_intensity = p720t_lcd_backlight_set_intensity,
+};
+
/*
* Map the P720T system PLD. It occupies two address spaces:
* 0x10000000 and 0x10400000. We map both regions as one.
@@ -187,6 +203,9 @@
platform_device_register_data(&platform_bus, "platform-lcd", 0,
&p720t_lcd_power_pdata,
sizeof(p720t_lcd_power_pdata));
+ platform_device_register_data(&platform_bus, "generic-bl", 0,
+ &p720t_lcd_backlight_pdata,
+ sizeof(p720t_lcd_backlight_pdata));
platform_device_register_simple("video-clps711x", 0, NULL, 0);
}