🔖 Marlin 2.0.8.6

Fixes #22967

.gitignore

@@ -22,12 +22,16 @@
 # Generated files
 _Version.h
 bdf2u8g
+marlin_config.json
+mczip.h
+*.gen
+*.sublime-workspace
 
 #
 # OS
 #
 applet/
-*.DS_Store
+.DS_Store
 
 #
 # Misc
@@ -37,7 +41,6 @@ applet/
 *.rej
 *.bak
 *.idea
-*.s
 *.i
 *.ii
 *.swp
@@ -137,16 +140,19 @@ __vm/
 vc-fileutils.settings
 
 # Visual Studio Code
-.vscode
-.vscode/.browse.c_cpp.db*
-.vscode/c_cpp_properties.json
-.vscode/launch.json
-.vscode/*.db
+.vscode/*
+!.vscode/extensions.json
+
+#Simulation
+imgui.ini
+eeprom.dat
+spi_flash.bin
 
 # cmake
 CMakeLists.txt
 src/CMakeLists.txt
 CMakeListsPrivate.txt
+build/
 
 # CLion
 cmake-build-*

.vscode/extensions.json

@@ -0,0 +1,12 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "marlinfirmware.auto-build",
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode-remote.remote-containers",
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}

Marlin/Version.h

@@ -28,7 +28,7 @@
 /**
  * Marlin release version identifier
  */
-//#define SHORT_BUILD_VERSION "2.0.8.5"
+//#define SHORT_BUILD_VERSION "2.0.8.6"
 
 /**
  * Verbose version identifier which should contain a reference to the location
@@ -41,7 +41,7 @@
  * here we define this default string as the date where the latest release
  * version was tagged.
  */
-//#define STRING_DISTRIBUTION_DATE "2025-11-13"
+//#define STRING_DISTRIBUTION_DATE "2026-01-22"
 
 /**
  * Defines a generic printer name to be output to the LCD after booting Marlin.

Marlin/src/HAL/STM32/MarlinSPI.cpp

@@ -36,12 +36,16 @@ static void spi_init(spi_t *obj, uint32_t speed, spi_mode_e mode, uint8_t msb, u
 
 void MarlinSPI::setClockDivider(uint8_t _div) {
   _speed = spi_getClkFreq(&_spi);// / _div;
-  _clockDivider = _div;
+  if (_clockDivider != _div) {
+    _clockDivider = _div;
+    _mustInit = true;
+  }
 }
 
 void MarlinSPI::begin(void) {
-  //TODO: only call spi_init if any parameter changed!!
+  if (!_mustInit) return;
   spi_init(&_spi, _speed, _dataMode, _bitOrder, _dataSize);
+  _mustInit = false;
 }
 
 void MarlinSPI::setupDma(SPI_HandleTypeDef &_spiHandle, DMA_HandleTypeDef &_dmaHandle, uint32_t direction, bool minc) {

Marlin/src/HAL/STM32/MarlinSPI.h

@@ -76,15 +76,23 @@ public:
   /* These methods are deprecated and kept for compatibility.
    * Use SPISettings with SPI.beginTransaction() to configure SPI parameters.
    */
-  void setBitOrder(BitOrder _order) { _bitOrder = _order; }
+  void setBitOrder(BitOrder order) {
+    if (_bitOrder == order) return;
+    _bitOrder = order;
+    _mustInit = true;
+  }
 
-  void setDataMode(uint8_t _mode) {
-    switch (_mode) {
+  void setDataMode(uint8_t mode) {
+    auto previous_mode = _dataMode;
+    switch (mode) {
       case SPI_MODE0: _dataMode = SPI_MODE_0; break;
       case SPI_MODE1: _dataMode = SPI_MODE_1; break;
       case SPI_MODE2: _dataMode = SPI_MODE_2; break;
       case SPI_MODE3: _dataMode = SPI_MODE_3; break;
+      default: return;
     }
+    if (previous_mode != _dataMode)
+      _mustInit = true;
   }
 
   void setClockDivider(uint8_t _div);
@@ -104,4 +112,5 @@ private:
   pin_t _misoPin;
   pin_t _sckPin;
   pin_t _ssPin;
+  bool _mustInit = true;
 };

Marlin/src/inc/Version.h

@@ -25,7 +25,7 @@
  * Release version. Leave the Marlin version or apply a custom scheme.
  */
 #ifndef SHORT_BUILD_VERSION
-  #define SHORT_BUILD_VERSION "2.0.8.5"
+  #define SHORT_BUILD_VERSION "2.0.8.6"
 #endif
 
 /**
@@ -42,7 +42,7 @@
  * version was tagged.
  */
 #ifndef STRING_DISTRIBUTION_DATE
-  #define STRING_DISTRIBUTION_DATE "2025-11-13"
+  #define STRING_DISTRIBUTION_DATE "2026-01-22"
 #endif
 
 /**