From c03622871f43a55d55dd36134860383012d691a5 Mon Sep 17 00:00:00 2001
From: Andrej Krutak <dev@andree.sk>
Date: Thu, 30 Mar 2017 21:59:35 +0200
Subject: [PATCH] Cleanup code and mark init pins argument as const (which it
 is)

---
 extras/pwm/pwm.c | 12 ++++++------
 extras/pwm/pwm.h |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/extras/pwm/pwm.c b/extras/pwm/pwm.c
index 338dff0..792d899 100644
--- a/extras/pwm/pwm.c
+++ b/extras/pwm/pwm.c
@@ -29,7 +29,7 @@ typedef struct pwmInfoDefinition
     uint8_t running;
 
     uint16_t freq;
-    uint16_t dutyCicle;
+    uint16_t dutyCycle;
 
     /* private */
     uint32_t _maxLoad;
@@ -66,7 +66,7 @@ static void frc1_interrupt_handler(void)
     pwmInfo._step = step;
 }
 
-void pwm_init(uint8_t npins, uint8_t* pins)
+void pwm_init(uint8_t npins, const uint8_t* pins)
 {
     /* Assert number of pins is correct */
     if (npins > MAX_PWM_PINS)
@@ -127,10 +127,10 @@ void pwm_set_duty(uint16_t duty)
 {
     bool output;
 
-    pwmInfo.dutyCicle = duty;
+    pwmInfo.dutyCycle = duty;
     if (duty > 0 && duty < UINT16_MAX) {
         pwm_restart();
-	return;
+        return;
     }
 
     // 0% and 100% duty cycle are special cases: constant output.
@@ -139,7 +139,7 @@ void pwm_set_duty(uint16_t duty)
     output = (duty == UINT16_MAX);
     for (uint8_t i = 0; i < pwmInfo.usedPins; ++i)
     {
-	gpio_write(pwmInfo.pins[i].pin, output);
+        gpio_write(pwmInfo.pins[i].pin, output);
     }
 }
 
@@ -154,7 +154,7 @@ void pwm_restart()
 
 void pwm_start()
 {
-    pwmInfo._onLoad = pwmInfo.dutyCicle * pwmInfo._maxLoad / UINT16_MAX;
+    pwmInfo._onLoad = pwmInfo.dutyCycle * pwmInfo._maxLoad / UINT16_MAX;
     pwmInfo._offLoad = pwmInfo._maxLoad - pwmInfo._onLoad;
     pwmInfo._step = PERIOD_ON;
 
diff --git a/extras/pwm/pwm.h b/extras/pwm/pwm.h
index 55b8761..e2e7d75 100644
--- a/extras/pwm/pwm.h
+++ b/extras/pwm/pwm.h
@@ -16,7 +16,7 @@
 extern "C" {
 #endif
 
-void pwm_init(uint8_t npins, uint8_t* pins);
+void pwm_init(uint8_t npins, const uint8_t* pins);
 void pwm_set_freq(uint16_t freq);
 void pwm_set_duty(uint16_t duty);