feat(lcd): support rgb lcd driver for esp32p4

components/esp_hw_support/dma/include/esp_private/gdma_link.h

@@ -115,6 +115,10 @@ uintptr_t gdma_link_get_head_addr(gdma_link_list_handle_t list);
  *                          v item_index
  *        Link B: B1 --> B2 --> B3 --> B4
  *
+ *      After concatenation:
+ *       Link A: A1 --> B3 --> B4
+ *       Link B: B1 --> B2 --> B3 --> B4
+ *
  * @param[in] first_link First link list handle, allocated by `gdma_new_link_list`
  * @param[in] first_link_item_index Index of the item in the first link list (-1 means the last item)
  * @param[in] second_link Second link list handle, allocated by `gdma_new_link_list`

components/esp_lcd/Kconfig

@@ -1,47 +1,43 @@
-menu "LCD and Touch Panel"
-    comment "LCD Touch Drivers are maintained in the ESP Component Registry"
+menu "ESP-Driver:LCD Controller Configurations"
+    config LCD_ENABLE_DEBUG_LOG
+        bool "Enable debug log"
+        default n
+        help
+            whether to enable the debug log message for LCD driver.
+            Note that, this option only controls the LCD driver log, won't affect other drivers.
 
-    menu "LCD Peripheral Configuration"
-        config LCD_ENABLE_DEBUG_LOG
-            bool "Enable debug log"
+    if SOC_LCD_RGB_SUPPORTED
+        config LCD_RGB_ISR_IRAM_SAFE
+            bool "RGB LCD ISR IRAM-Safe"
+            select GDMA_ISR_IRAM_SAFE # bounce buffer mode relies on GDMA EOF interrupt
             default n
             help
-                whether to enable the debug log message for LCD driver.
-                Note that, this option only controls the LCD driver log, won't affect other drivers.
+                Ensure the LCD interrupt is IRAM-Safe by allowing the interrupt handler to be
+                executable when the cache is disabled (e.g. SPI Flash write).
+                If you want the LCD driver to keep flushing the screen even when cache ops disabled,
+                you can enable this option. Note, this will also increase the IRAM usage.
 
-        if SOC_LCD_RGB_SUPPORTED
-            config LCD_RGB_ISR_IRAM_SAFE
-                bool "RGB LCD ISR IRAM-Safe"
-                select GDMA_ISR_IRAM_SAFE # bounce buffer mode relies on GDMA EOF interrupt
-                default n
-                help
-                    Ensure the LCD interrupt is IRAM-Safe by allowing the interrupt handler to be
-                    executable when the cache is disabled (e.g. SPI Flash write).
-                    If you want the LCD driver to keep flushing the screen even when cache ops disabled,
-                    you can enable this option. Note, this will also increase the IRAM usage.
-
-            config LCD_RGB_RESTART_IN_VSYNC
-                bool "Restart transmission in VSYNC"
-                default n
-                help
-                    Reset the GDMA channel every VBlank to stop permanent desyncs from happening.
-                    Only need to enable it when in your application, the DMA can't deliver data
-                    as fast as the LCD consumes it.
-        endif # SOC_LCD_RGB_SUPPORTED
+        config LCD_RGB_RESTART_IN_VSYNC
+            bool "Always restart RGB LCD transmission in VSYNC"
+            default n
+            help
+                Reset the GDMA channel every VBlank to stop permanent desyncs from happening.
+                Only need to enable it when in your application, the DMA can't deliver data
+                as fast as the LCD consumes it.
+    endif # SOC_LCD_RGB_SUPPORTED
 
-        if SOC_MIPI_DSI_SUPPORTED
-            config LCD_DSI_ISR_IRAM_SAFE
-                bool "DSI LCD ISR IRAM-Safe"
-                default n
-                select DW_GDMA_ISR_IRAM_SAFE
-                select DW_GDMA_CTRL_FUNC_IN_IRAM
-                select DW_GDMA_SETTER_FUNC_IN_IRAM
-                select DW_GDMA_GETTER_FUNC_IN_IRAM
-                help
-                    Ensure the LCD interrupt is IRAM-Safe by allowing the interrupt handler to be
-                    executable when the cache is disabled (e.g. SPI Flash write).
-                    If you want the LCD driver to keep flushing the screen even when cache ops disabled,
-                    you can enable this option. Note, this will also increase the IRAM usage.
-        endif # SOC_MIPI_DSI_SUPPORTED
-    endmenu
+    if SOC_MIPI_DSI_SUPPORTED
+        config LCD_DSI_ISR_IRAM_SAFE
+            bool "DSI LCD ISR IRAM-Safe"
+            default n
+            select DW_GDMA_ISR_IRAM_SAFE
+            select DW_GDMA_CTRL_FUNC_IN_IRAM
+            select DW_GDMA_SETTER_FUNC_IN_IRAM
+            select DW_GDMA_GETTER_FUNC_IN_IRAM
+            help
+                Ensure the LCD interrupt is IRAM-Safe by allowing the interrupt handler to be
+                executable when the cache is disabled (e.g. SPI Flash write).
+                If you want the LCD driver to keep flushing the screen even when cache ops disabled,
+                you can enable this option. Note, this will also increase the IRAM usage.
+    endif # SOC_MIPI_DSI_SUPPORTED
 endmenu