Display refactor and SH8601 support (#383)

* Initial SH8601 support

* refactor: Dedicated write command function

* feat: Set display brightness for SH8601

* doc: Updated comment

* refactor: Moved display backlight to driver

* refactor: Refactored display driver:

 - Moved backlight to respective driver implementations
 - Created dedicated write commands functions

* refactor: Updated all displaydriver usages to the new driver

* feat: Updated display_driver example to include T-Encoder-Pro support

* build: Removed redundant SRC directory

* refactor: Move backlight back to the display component

* refactor: Split up dislay configuration structs

* fix: Removed redundant struct member

* refactor: Removed brightness control from lcd display drivers

* fix: Take colordepth into consideration for SH8601 init

* refactor: Updated examples and other components using displays

* refactor: Removed some magic numbers

* perf: Optimized send_lines by removing 1 setup transaction

* fix: Default initialize member as null

* fix: Components now send the right transaction..

* refactor: Applied PR feedback

* refactor: Split init function into multiple functions

* refactor: Changed LcdInitCommands to not require explicit length

* doc: Updated docs for new display driver

* doc: Updated more documentation

* fix: Added missing const

* refactor: Moved the interation count to the middle

* fix: Fixed refactor leftovers

* fix: Fixed seeed-sudio-round backlight

* doc: Updated display example README

* fix: Default initialized Display parameter

Author: abrondijk

components/display/include/display.hpp

@@ -1,5 +1,4 @@
 idf_component_register(
   INCLUDE_DIRS "include"
-  SRC_DIRS "src"
   REQUIRES display driver esp_lcd led
 )

components/display_drivers/CMakeLists.txt

@@ -4,6 +4,14 @@ This example is designed to show how the `display_drivers` component can be used
 to drive various different displays with LVGL and a simple GUI (that is
 contained within the example: `main/gui.hpp`).
 
+## Demo
+
+Below can be seen what the demo looks like on the T-Encoder-Pro devkit:
+
+![SH8601](https://github.com/user-attachments/assets/2bca4a03-3777-4e49-a467-29fa50ca0202)
+
+https://github.com/user-attachments/assets/fef57074-bab7-4fdf-a25e-f4590773c926
+
 ## How to use example
 
 ### Hardware Required
@@ -47,3 +55,4 @@ The example has the following functionality:
 * `lcd_send_lines` and `lcd_wait_lines` for queued (non-blocking) transmit example
 * `Gui` class (contained in `main/gui.hpp`) which encapsulates some very basic
   LVGL components into an object that manages gui update task and synchronization.
+

components/display_drivers/example/README.md

@@ -13,6 +13,14 @@ menu "Display Drivers Example Configuration"
             bool "ESP BOX"
         config SMARTKNOB_HA
             bool "SMARTKNOB-HA"
+        config T_ENCODER_PRO
+            bool "T-ENCODER-PRO"
     endchoice
 
+    config DISPLAY_QUAD_SPI
+        bool "Quad SPI"
+        default y if T_ENCODER_PRO
+        help
+            Use a Quad SPI bus for the display
+
 endmenu