--- zzzz-none-000/linux-3.10.107/arch/arm/mach-pxa/palm27x.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm/mach-pxa/palm27x.c	2021-02-04 17:41:59.000000000 +0000
@@ -15,6 +15,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 #include <linux/pda_power.h>
+#include <linux/pwm.h>
 #include <linux/pwm_backlight.h>
 #include <linux/gpio.h>
 #include <linux/wm97xx.h>
@@ -270,6 +271,11 @@
  * Backlight
  ******************************************************************************/
 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
+static struct pwm_lookup palm27x_pwm_lookup[] = {
+	PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 3500 * 1024,
+		   PWM_POLARITY_NORMAL),
+};
+
 static int palm_bl_power;
 static int palm_lcd_power;
 
@@ -318,10 +324,9 @@
 }
 
 static struct platform_pwm_backlight_data palm27x_backlight_data = {
-	.pwm_id		= 0,
 	.max_brightness	= 0xfe,
 	.dft_brightness	= 0x7e,
-	.pwm_period_ns	= 3500 * 1024,
+	.enable_gpio	= -1,
 	.init		= palm27x_backlight_init,
 	.notify		= palm27x_backlight_notify,
 	.exit		= palm27x_backlight_exit,
@@ -339,6 +344,7 @@
 {
 	palm_bl_power	= bl;
 	palm_lcd_power	= lcd;
+	pwm_add_table(palm27x_pwm_lookup, ARRAY_SIZE(palm27x_pwm_lookup));
 	platform_device_register(&palm27x_backlight);
 }
 #endif