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Date: Tue, 29 Mar 2011 11:59:15 +0200
From: Belisko Marek <marek.belisko@...il.com>
To: ben-linux@...ff.org, linux@....linux.org.uk
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Marek Belisko <marek.belisko@...n-nandra.com>
Subject: Re: [PATCH] s3c2440: mini2440: Use leds-gpio driver for board leds handling.
This should be in-reply-to https://lkml.org/lkml/2011/3/29/79 comments
On Tue, Mar 29, 2011 at 11:53 AM, Marek Belisko
<marek.belisko@...n-nandra.com> wrote:
> Intention of this patch is convert existing usage of leds-s3c24xx driver
> to use generic gpio-leds driver. Leds are separated to 2 devices.
> First device handle 4 available leds. Second device is used to drive
> LCD backlight. Backlight can be controlled via parameter b so we need
> separate device which is registered or not depending on parameter.
>
> Signed-off-by: Marek Belisko <marek.belisko@...n-nandra.com>
> ---
> arch/arm/mach-s3c2440/mach-mini2440.c | 121 +++++++++++++++------------------
> 1 files changed, 54 insertions(+), 67 deletions(-)
>
> diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c
> index 163d318..28ef6eb 100644
> --- a/arch/arm/mach-s3c2440/mach-mini2440.c
> +++ b/arch/arm/mach-s3c2440/mach-mini2440.c
> @@ -419,81 +419,71 @@ static struct platform_device mini2440_button_device = {
> };
>
> /* LEDS */
> -
> -static struct s3c24xx_led_platdata mini2440_led1_pdata = {
> - .name = "led1",
> - .gpio = S3C2410_GPB(5),
> - .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
> - .def_trigger = "heartbeat",
> -};
> -
> -static struct s3c24xx_led_platdata mini2440_led2_pdata = {
> - .name = "led2",
> - .gpio = S3C2410_GPB(6),
> - .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
> - .def_trigger = "nand-disk",
> -};
> -
> -static struct s3c24xx_led_platdata mini2440_led3_pdata = {
> - .name = "led3",
> - .gpio = S3C2410_GPB(7),
> - .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
> - .def_trigger = "mmc0",
> -};
> -
> -static struct s3c24xx_led_platdata mini2440_led4_pdata = {
> - .name = "led4",
> - .gpio = S3C2410_GPB(8),
> - .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
> - .def_trigger = "",
> -};
> -
> -static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
> - .name = "backlight",
> - .gpio = S3C2410_GPG(4),
> - .def_trigger = "backlight",
> +static struct gpio_led gpio_leds[] = {
> + {
> + .name = "led1",
> + .gpio = S3C2410_GPB(5),
> + .active_low = 1,
> + .default_trigger = "heartbeat",
> + },
> + {
> + .name = "led2",
> + .gpio = S3C2410_GPB(6),
> + .active_low = 1,
> + .default_trigger = "nand-disk",
> + .default_state = LEDS_GPIO_DEFSTATE_OFF,
> + },
> + {
> + .name = "led3",
> + .gpio = S3C2410_GPB(7),
> + .active_low = 1,
> + .default_trigger = "mmc0",
> + .default_state = LEDS_GPIO_DEFSTATE_OFF,
> + },
> + {
> + .name = "led4",
> + .gpio = S3C2410_GPB(8),
> + .active_low = 1,
> + .default_trigger = "none",
> + .default_state = LEDS_GPIO_DEFSTATE_OFF,
> + }
> };
>
> -static struct platform_device mini2440_led1 = {
> - .name = "s3c24xx_led",
> - .id = 1,
> - .dev = {
> - .platform_data = &mini2440_led1_pdata,
> - },
> +static struct gpio_led backlight_led[] = {
> + {
> + .name = "backlight",
> + .gpio = S3C2410_GPG(4),
> + .active_low = 0,
> + .default_trigger = "backlight",
> + .default_state = LEDS_GPIO_DEFSTATE_ON,
> + }
> };
>
> -static struct platform_device mini2440_led2 = {
> - .name = "s3c24xx_led",
> - .id = 2,
> - .dev = {
> - .platform_data = &mini2440_led2_pdata,
> - },
> +static struct gpio_led_platform_data gpio_led_info = {
> + .leds = gpio_leds,
> + .num_leds = ARRAY_SIZE(gpio_leds),
> };
>
> -static struct platform_device mini2440_led3 = {
> - .name = "s3c24xx_led",
> - .id = 3,
> - .dev = {
> - .platform_data = &mini2440_led3_pdata,
> - },
> +static struct gpio_led_platform_data backlight_info = {
> + .leds = backlight_led,
> + .num_leds = ARRAY_SIZE(backlight_led),
> };
>
> -static struct platform_device mini2440_led4 = {
> - .name = "s3c24xx_led",
> - .id = 4,
> - .dev = {
> - .platform_data = &mini2440_led4_pdata,
> - },
> +static struct platform_device mini2440_leds = {
> + .name = "leds-gpio",
> + .id = 0,
> + .dev = {
> + .platform_data = &gpio_led_info,
> + }
> };
>
> static struct platform_device mini2440_led_backlight = {
> - .name = "s3c24xx_led",
> - .id = 5,
> - .dev = {
> - .platform_data = &mini2440_led_backlight_pdata,
> - },
> + .name = "leds-gpio",
> + .id = 1,
> + .dev = {
> + .platform_data = &backlight_info,
> + }
> };
> -
> /* AUDIO */
>
> static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = {
> @@ -543,10 +533,7 @@ static struct platform_device *mini2440_devices[] __initdata = {
> &s3c_device_rtc,
> &s3c_device_usbgadget,
> &mini2440_device_eth,
> - &mini2440_led1,
> - &mini2440_led2,
> - &mini2440_led3,
> - &mini2440_led4,
> + &mini2440_leds,
> &mini2440_button_device,
> &s3c_device_nand,
> &s3c_device_sdi,
> --
> 1.7.1
>
>
regards,
marek
--
as simple and primitive as possible
-------------------------------------------------
Marek Belisko - OPEN-NANDRA
Freelance Developer
Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
Tel: +421 915 052 184
skype: marekwhite
icq: 290551086
web: http://open-nandra.com
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