[PATCH] ARM: mx53/loco: add pwm backlight device
Jason Chen
b02280 at freescale.com
Thu Mar 3 21:51:26 EST 2011
Signed-off-by: Jason Chen <b02280 at freescale.com>
---
arch/arm/mach-mx5/Kconfig | 1 +
arch/arm/mach-mx5/board-mx53_loco.c | 11 +++++++++++
arch/arm/mach-mx5/devices-imx53.h | 4 ++++
3 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index f065a0d..baf5223 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -162,6 +162,7 @@ config MACH_MX53_LOCO
select IMX_HAVE_PLATFORM_IMX2_WDT
select IMX_HAVE_PLATFORM_IMX_I2C
select IMX_HAVE_PLATFORM_IMX_UART
+ select IMX_HAVE_PLATFORM_MXC_PWM
help
Include support for MX53 LOCO platform. This includes specific
configurations for the board and its peripherals.
diff --git a/arch/arm/mach-mx5/board-mx53_loco.c b/arch/arm/mach-mx5/board-mx53_loco.c
index 160899e..3b0b200 100644
--- a/arch/arm/mach-mx5/board-mx53_loco.c
+++ b/arch/arm/mach-mx5/board-mx53_loco.c
@@ -23,6 +23,7 @@
#include <linux/fec.h>
#include <linux/delay.h>
#include <linux/gpio.h>
+#include <linux/pwm_backlight.h>
#include <mach/common.h>
#include <mach/hardware.h>
@@ -203,6 +204,13 @@ static const struct imxi2c_platform_data mx53_loco_i2c_data __initconst = {
.bitrate = 100000,
};
+static struct platform_pwm_backlight_data loco_pwm_backlight_data = {
+ .pwm_id = 1,
+ .max_brightness = 255,
+ .dft_brightness = 128,
+ .pwm_period_ns = 50000,
+};
+
static void __init mx53_loco_board_init(void)
{
mxc_iomux_v3_setup_multiple_pads(mx53_loco_pads,
@@ -213,6 +221,9 @@ static void __init mx53_loco_board_init(void)
imx53_add_imx2_wdt(0, NULL);
imx53_add_imx_i2c(0, &mx53_loco_i2c_data);
imx53_add_imx_i2c(1, &mx53_loco_i2c_data);
+
+ imx53_add_mxc_pwm(1);
+ imx53_add_mxc_pwm_backlight(0, &loco_pwm_backlight_data);
}
static void __init mx53_loco_timer_init(void)
diff --git a/arch/arm/mach-mx5/devices-imx53.h b/arch/arm/mach-mx5/devices-imx53.h
index 5a1d6c9..a2dc8b6 100644
--- a/arch/arm/mach-mx5/devices-imx53.h
+++ b/arch/arm/mach-mx5/devices-imx53.h
@@ -37,3 +37,7 @@ extern const struct imx_imx2_wdt_data imx53_imx2_wdt_data[] __initconst;
extern const struct imx_mxc_pwm_data imx53_mxc_pwm_data[] __initconst;
#define imx53_add_mxc_pwm(id) \
imx_add_mxc_pwm(&imx53_mxc_pwm_data[id])
+
+#define imx53_add_mxc_pwm_backlight(id, pdata) \
+ platform_device_register_resndata(NULL, "pwm-backlight",\
+ id, NULL, 0, pdata, sizeof(*pdata));
--
1.7.1
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