[PATCH 02/13] eukrea_mbimx27-baseboard: add generic-bl and platform-lcd controls
Sascha Hauer
s.hauer at pengutronix.de
Thu May 20 02:33:17 EDT 2010
Hi Eric,
On Wed, May 19, 2010 at 06:45:57PM +0200, Eric Bénard wrote:
> Signed-off-by: Eric Bénard <eric at eukrea.com>
> ---
> arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c | 55 +++++++++++++++++++++++---
> 1 files changed, 49 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c b/arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c
> index c9e4452..0f201c5 100644
> --- a/arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c
> +++ b/arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c
> @@ -24,6 +24,8 @@
> #include <linux/platform_device.h>
> #include <linux/spi/spi.h>
> #include <linux/spi/ads7846.h>
> +#include <linux/backlight.h>
> +#include <video/platform_lcd.h>
>
> #include <asm/mach/arch.h>
>
> @@ -103,12 +105,6 @@ static struct gpio_led gpio_leds[] = {
> .active_low = 1,
> .gpio = GPIO_PORTF | 19,
> },
> - {
> - .name = "backlight",
> - .default_trigger = "backlight",
> - .active_low = 0,
> - .gpio = GPIO_PORTE | 5,
> - },
> };
>
> static struct gpio_led_platform_data gpio_led_info = {
> @@ -153,6 +149,47 @@ static struct imx_fb_platform_data eukrea_mbimx27_fb_data = {
> .dmacr = 0x00040060,
> };
>
> +static void eukrea_mbimx27_bl_set_intensity(int intensity)
> +{
> + if (intensity)
> + gpio_direction_output(GPIO_PORTE | 5, 1);
> + else
> + gpio_direction_output(GPIO_PORTE | 5, 0);
> +}
PE5 is connected to a PWM for which we have a driver in the tree. Don't
you want to use it? As it happens my collegue just some code to make it
usable on the pca100 board. I can send you the code if you want to.
> +
> +static struct generic_bl_info eukrea_mbimx27_bl_info = {
> + .name = "eukrea_mbimx27-bl",
> + .max_intensity = 0xff,
> + .default_intensity = 0xff,
> + .set_bl_intensity = eukrea_mbimx27_bl_set_intensity,
> +};
> +
> +static struct platform_device eukrea_mbimx27_bl_dev = {
> + .name = "generic-bl",
> + .id = 1,
> + .dev = {
> + .platform_data = &eukrea_mbimx27_bl_info,
> + },
> +};
> +
> +static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd,
> + unsigned int power)
> +{
> + if (power)
> + gpio_direction_output(GPIO_PORTA | 25, 1);
> + else
> + gpio_direction_output(GPIO_PORTA | 25, 0);
> +}
> +
> +static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
> + .set_power = eukrea_mbimx27_lcd_power_set,
> +};
> +
> +static struct platform_device eukrea_mbimx27_lcd_powerdev = {
> + .name = "platform-lcd",
> + .dev.platform_data = &eukrea_mbimx27_lcd_power_data,
> +};
> +
> static struct imxuart_platform_data uart_pdata[] = {
> {
> .flags = IMXUART_HAVE_RTSCTS,
> @@ -244,6 +281,12 @@ void __init eukrea_mbimx27_baseboard_init(void)
> mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
> /* Backlight */
> mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
> + gpio_request(GPIO_PORTE | 5, "backlight");
> + platform_device_register(&eukrea_mbimx27_bl_dev);
> + /* LCD Reset */
> + mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT);
> + gpio_request(GPIO_PORTA | 25, "lcd_enable");
> + platform_device_register(&eukrea_mbimx27_lcd_powerdev);
>
> platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
> }
> --
> 1.6.3.3
>
>
--
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