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SubjectRe: [PATCH 11/16] avr32: merisc: use generic leds_pwm driver
Around Wed 19 Mar 2014 14:03:24 +0100 or thereabout, Alexandre Belloni wrote:
> Switch to the generic leds_pwm driver instead of leds-atmel-pwm.
>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>

I do not have this board either.

> ---
> arch/avr32/boards/merisc/setup.c | 34 +++++++++++++++++++++-------------
> 1 file changed, 21 insertions(+), 13 deletions(-)
>
> diff --git a/arch/avr32/boards/merisc/setup.c b/arch/avr32/boards/merisc/setup.c
> index ed137e335796..b0980c1946a7 100644
> --- a/arch/avr32/boards/merisc/setup.c
> +++ b/arch/avr32/boards/merisc/setup.c
> @@ -22,6 +22,8 @@
> #include <linux/irq.h>
> #include <linux/fb.h>
> #include <linux/atmel-mci.h>
> +#include <linux/pwm.h>
> +#include <linux/leds_pwm.h>
>
> #include <asm/io.h>
> #include <asm/setup.h>
> @@ -167,24 +169,29 @@ static struct i2c_board_info __initdata i2c_info[] = {
> },
> };
>
> -#ifdef CONFIG_LEDS_ATMEL_PWM
> -static struct gpio_led stk_pwm_led[] = {
> +#if IS_ENABLED(CONFIG_LEDS_PWM)
> +static struct pwm_lookup pwm_lookup[] = {
> + PWM_LOOKUP("at91sam9rl-pwm", 0, "leds_pwm", "backlight"),
> +};
> +
> +static struct led_pwm pwm_leds[] = {
> {
> .name = "backlight",
> - .gpio = 0, /* PWM channel 0 (LCD backlight) */
> + .max_brightness = 255,
> + .pwm_period_ns = 5000,
> },
> };
>
> -static struct gpio_led_platform_data stk_pwm_led_data = {
> - .num_leds = ARRAY_SIZE(stk_pwm_led),
> - .leds = stk_pwm_led,
> +static struct led_pwm_platform_data pwm_data = {
> + .num_leds = ARRAY_SIZE(pwm_leds),
> + .leds = pwm_leds,
> };
>
> -static struct platform_device stk_pwm_led_dev = {
> - .name = "leds-atmel-pwm",
> - .id = -1,
> - .dev = {
> - .platform_data = &stk_pwm_led_data,
> +static struct platform_device leds_pwm = {
> + .name = "leds_pwm",
> + .id = -1,
> + .dev = {
> + .platform_data = &pwm_data,
> },
> };
> #endif
> @@ -278,9 +285,10 @@ static int __init merisc_init(void)
>
> at32_add_device_mci(0, &mci0_data);
>
> -#ifdef CONFIG_LEDS_ATMEL_PWM
> +#if IS_ENABLED(CONFIG_LEDS_PWM)
> + pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
> at32_add_device_pwm((1 << 0) | (1 << 2));
> - platform_device_register(&stk_pwm_led_dev);
> + platform_device_register(&leds_pwm);
> #else
> at32_add_device_pwm((1 << 2));
> #endif
--
mvh
Hans-Christian Egtvedt


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