SoftPWM fails to build on kernel >= 4.10 about hp_n36-40-54l_health_led_drivers HOT 5 OPEN

diff --git a/src/softpwm/dkms.conf b/src/softpwm/dkms.conf
index 0e9f44a..c274dd2 100644
--- a/src/softpwm/dkms.conf
+++ b/src/softpwm/dkms.conf
@@ -4,5 +4,5 @@ BUILT_MODULE_NAME=softpwm
 BUILT_MODULE_LOCATION=.
 DEST_MODULE_LOCATION=/updates
 PACKAGE_NAME=softpwm
-PACKAGE_VERSION=20180507
+PACKAGE_VERSION=20210503
 REMAKE_INITRD=yes
diff --git a/src/softpwm/softpwm.c b/src/softpwm/softpwm.c
index 7fe69b5..0453e4a 100644
--- a/src/softpwm/softpwm.c
+++ b/src/softpwm/softpwm.c
@@ -12,6 +12,7 @@ http://www.acmesystems.it/soft_pwm
 http://www.acmesystems.it/DAISY-2
 */
 
+/* Fix for newer kernels >= 4.10 by Yurii Nikiforov */
 
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -201,17 +202,21 @@ done:
 	return status ? : len;
 }
 
-/* Sysfs definitions for soft_pwm class */
-static struct class_attribute soft_pwm_class_attrs[] = {
-	__ATTR(export,   0200, NULL, export_store),
-	__ATTR(unexport, 0200, NULL, unexport_store),
-	__ATTR_NULL,
+static CLASS_ATTR_WO(export);
+static CLASS_ATTR_WO(unexport);
+
+static struct attribute *soft_pwm_class_attrs[] = {
+	&class_attr_export.attr,
+	&class_attr_unexport.attr,
+	NULL,
 };
 
+ATTRIBUTE_GROUPS(soft_pwm_class);
+
 static struct class soft_pwm_class = {
 	.name = "soft_pwm",
 	.owner = THIS_MODULE,
-	.class_attrs = soft_pwm_class_attrs,
+	.class_groups = soft_pwm_class_groups,
 };
 
 /* Setup the sysfs directory for a claimed PWM device */
@@ -308,7 +313,7 @@ enum hrtimer_restart soft_pwm_hrtimer_callback(struct hrtimer *timer) {
 		else if (desc->pulse >= desc->period)
 			desc->value = 1;
 		else {
-			if (desc->next_tick.tv64 <= now.tv64) {
+			if (desc->next_tick <= now) {
 				desc->value = 1 - desc->value;
 
 				desc->counter ++;
@@ -318,7 +323,7 @@ enum hrtimer_restart soft_pwm_hrtimer_callback(struct hrtimer *timer) {
 				if (desc->pulse == 0 ||
 					desc->pulse == desc->period ||
 					desc->pulses == 0) {
-					desc->next_tick.tv64 = KTIME_MAX;
+					desc->next_tick = KTIME_MAX;
 				} else {
 					t = desc->value ?
 						desc->pulse :
@@ -327,9 +332,9 @@ enum hrtimer_restart soft_pwm_hrtimer_callback(struct hrtimer *timer) {
 						t * 1000);
 				}
 			}
-			if (next_tick.tv64 == 0 ||
-				desc->next_tick.tv64 < next_tick.tv64) {
-				next_tick.tv64 = desc->next_tick.tv64;
+			if (next_tick == 0 ||
+				desc->next_tick < next_tick) {
+				next_tick = desc->next_tick;
 			}
 		}
 
@@ -340,7 +345,7 @@ next:
 		}
 	}
 
-	if (next_tick.tv64 > 0)
+	if (next_tick > 0)
 		hrtimer_start(&hr_timer, next_tick, HRTIMER_MODE_ABS);
 
 	return HRTIMER_NORESTART;
@@ -351,7 +356,7 @@ static int __init soft_pwm_init(void){
 	//struct timespec tp;
 
 	int status;
-	printk(KERN_INFO "SoftPWM v0.2-acme initializing.\n");
+	printk(KERN_INFO "SoftPWM v0.3-acme initializing.\n");
 
 	//hrtimer_get_res(CLOCK_MONOTONIC, &tp);
 	//printk(KERN_INFO "Clock resolution is %ldns\n", tp.tv_nsec);
@@ -394,4 +399,3 @@ static void __exit soft_pwm_exit(void){
 
 module_init(soft_pwm_init);
 module_exit(soft_pwm_exit);
-