From d8dd9cacc3b46c6fcf1f2c24e7331b73cec376d0 Mon Sep 17 00:00:00 2001
From: Kyle K <doctor.whom@gmail.com>
Date: Sat, 29 Jun 2019 01:00:41 +0000
Subject: [PATCH] dropping useless max7456Lock boolean

---
 src/main/drivers/max7456.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/src/main/drivers/max7456.c b/src/main/drivers/max7456.c
index 90ea6afcc..51b5316da 100644
--- a/src/main/drivers/max7456.c
+++ b/src/main/drivers/max7456.c
@@ -212,7 +212,6 @@ static uint8_t  displayMemoryModeReg = 0;
 static uint8_t  hosRegValue; // HOS (Horizontal offset register) value
 static uint8_t  vosRegValue; // VOS (Vertical offset register) value
 
-static bool max7456Lock         = false;
 static bool fontIsLoading       = false;
 
 static uint8_t max7456DeviceType;
@@ -649,12 +648,10 @@ void max7456DrawScreen(void)
 {
     static uint16_t pos = 0;
 
-    if (!max7456Lock && !fontIsLoading) {
+    if (!fontIsLoading) {
 
         // (Re)Initialize MAX7456 at startup or stall is detected.
 
-        max7456Lock = true;
-
         max7456ReInitIfRequired();
 
         int buff_len = 0;
@@ -684,7 +681,6 @@ void max7456DrawScreen(void)
             __spiBusTransactionEnd(busdev);
 #endif // MAX7456_DMA_CHANNEL_TX
         }
-        max7456Lock = false;
     }
 }
 
@@ -732,17 +728,12 @@ static void max7456DrawScreenSlow(void)
 // should not be used when armed
 void max7456RefreshAll(void)
 {
-    if (!max7456Lock) {
 #ifdef MAX7456_DMA_CHANNEL_TX
-        while (dmaTransactionInProgress);
+    while (dmaTransactionInProgress);
 #endif
-        max7456Lock = true;
 
-        max7456ReInitIfRequired();
-        max7456DrawScreenSlow();
-
-        max7456Lock = false;
-    }
+    max7456ReInitIfRequired();
+    max7456DrawScreenSlow();
 }
 
 void max7456WriteNvm(uint8_t char_address, const uint8_t *font_data)
@@ -750,8 +741,6 @@ void max7456WriteNvm(uint8_t char_address, const uint8_t *font_data)
 #ifdef MAX7456_DMA_CHANNEL_TX
     while (dmaTransactionInProgress);
 #endif
-    while (max7456Lock);
-    max7456Lock = true;
 
     __spiBusTransactionBegin(busdev);
     // disable display
@@ -779,8 +768,6 @@ void max7456WriteNvm(uint8_t char_address, const uint8_t *font_data)
     while ((max7456Send(MAX7456ADD_STAT, 0x00) & STAT_NVR_BUSY) != 0x00);
 
     __spiBusTransactionEnd(busdev);
-
-    max7456Lock = false;
 }
 
 #ifdef MAX7456_NRST_PIN