avr32: merisc: use generic leds_pwm driver

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>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/arch/avr32/boards/merisc/setup.c b/arch/avr32/boards/merisc/setup.c
index ed137e3..83d896c 100644 (file)
--- 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",
+                  5000, PWM_POLARITY_NORMAL),
+};
+
+static struct led_pwm pwm_leds[] = {
        {
                .name   = "backlight",
-               .gpio   = 0,            /* PWM channel 0 (LCD backlight) */
+               .max_brightness = 255,
        },
 };
 
-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