Bumped minimum esp-idf version to 4.4

Hopefully will be bumped to 5.0 before the next release but right now there are remaining issues.

Author: ducalex

BUILDING.md

@@ -1,9 +1,9 @@
 # Building Retro-Go
 
 ## Prerequisites
-You will need a working installation of [esp-idf](https://docs.espressif.com/projects/esp-idf/en/release-v4.3/esp32/get-started/index.html#get-started-get-prerequisites). Versions 4.2 to 5.2 are supported.
+You will need a working installation of [esp-idf](https://docs.espressif.com/projects/esp-idf/en/release-v4.4/esp32/get-started/index.html#get-started-get-prerequisites). Versions 4.4 to 5.2 are supported.
 
-_Note: As of retro-go 1.35, I use 4.3. Version 4.1 was used for 1.20 to 1.34 versions._
+_Note: As of retro-go 1.44, I use 4.4.8. I used 4.3 for 1.35 to 1.43. ESP-IDF 4.1 was used for 1.20 to 1.34 versions._
 
 ### ESP-IDF Patches
 Patching esp-idf may be required for full functionality. Patches are located in `tools/patches` and can be applied to your global esp-idf installation, they will not break your other projects/devices.

Dockerfile

@@ -1,4 +1,4 @@
-FROM espressif/idf:release-v4.3
+FROM espressif/idf:release-v4.4
 
 WORKDIR /app
 

components/retro-go/drivers/audio/i2s.c

@@ -67,9 +67,7 @@ static bool driver_init(int device, int sample_rate)
         if (ret == ESP_OK)
         {
             ret = i2s_set_pin(I2S_NUM_0, &(i2s_pin_config_t) {
-            #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 0)
                 .mck_io_num = GPIO_NUM_NC,
-            #endif
                 .bck_io_num = RG_GPIO_SND_I2S_BCK,
                 .ws_io_num = RG_GPIO_SND_I2S_WS,
                 .data_out_num = RG_GPIO_SND_I2S_DATA,

components/retro-go/rg_system.h

@@ -16,8 +16,8 @@ extern "C" {
 #include <esp_idf_version.h>
 #include <esp_heap_caps.h>
 #include <esp_attr.h>
-#if ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(4, 3, 0)
-#error "Retro-Go requires ESP-IDF version 4.3.0 or newer!"
+#if ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(4, 4, 0)
+#error "Retro-Go requires ESP-IDF version 4.4.0 or newer!"
 #endif
 #else
 #define IRAM_ATTR