--- zzzz-none-000/linux-3.10.107/arch/avr32/boards/merisc/setup.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/avr32/boards/merisc/setup.c	2021-02-04 17:41:59.000000000 +0000
@@ -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 @@
 	},
 };
 
-#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 @@
 
 	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