The EP9307, EP9312, and EP9315 processors include a framebuffer
peripheral. This peripheral has a dedicated pwm output called
BRIGHT that can be used to control the backlight on an LCD.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ryan Mallon <ryan@bluewatersys.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
---
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 4dfb5f4..625a464 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -142,6 +142,16 @@ config BACKLIGHT_ATMEL_PWM
To compile this driver as a module, choose M here: the module will be
called atmel-pwm-bl.
+config BACKLIGHT_EP93XX
+ tristate "Cirrus EP93xx Backlight Driver"
+ depends on FB_EP93XX
+ help
+ If you have a LCD backlight connected to the BRIGHT output of
+ the EP93xx, say Y here to enable this driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called ep93xx_bl.
+
config BACKLIGHT_GENERIC
tristate "Generic (aka Sharp Corgi) Backlight Driver"
default y
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 09d1f14..c89dc92 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o
+obj-$(CONFIG_BACKLIGHT_EP93XX) += ep93xx_bl.o
obj-$(CONFIG_BACKLIGHT_GENERIC) += generic_bl.o
obj-$(CONFIG_BACKLIGHT_HP700) += jornada720_bl.o
obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o
diff --git a/drivers/video/backlight/ep93xx_bl.c b/drivers/video/backlight/ep93xx_bl.c
new file mode 100644
index 0000000..b0cc491
--- /dev/null
+++ b/drivers/video/backlight/ep93xx_bl.c
@@ -0,0 +1,160 @@
+/*
+ * Driver for the Cirrus EP93xx lcd backlight
+ *
+ * Copyright (c) 2010 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * This program is free ...
