From 9a2fffa1921093ae381d648234396e0833be7e48 Mon Sep 17 00:00:00 2001
From: Test User <test@example.com>
Date: Tue, 14 Jul 2026 12:53:34 +1000
Subject: [PATCH] (feat) Add mimxrt PXP support.

Enable NXP's PXP 2D accelerator for the mimxrt port by setting
LV_USE_PXP, LV_USE_DRAW_PXP, LV_USE_GPU_NXP_PXP and
LV_USE_GPU_NXP_PXP_AUTO_INIT via CFLAGS_USERMOD, since the mimxrt
port has no board-level makefile of its own to provide them.
Silence known PXP driver warnings that would otherwise fail a
-Werror build.

Guard LV_USE_PXP, LV_USE_DRAW_PXP, LV_USE_ROTATE_PXP and
LV_DRAW_BUF_ALIGN with #ifndef so a board can override any of
these from its own build flags without a macro redefinition
warning.
---
 lv_conf.h      |  8 ++++++++
 micropython.mk | 22 ++++++++++++++++++++--
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/lv_conf.h b/lv_conf.h
index e37f8426f..406faead4 100644
--- a/lv_conf.h
+++ b/lv_conf.h
@@ -114,7 +114,9 @@
 #define LV_DRAW_BUF_STRIDE_ALIGN                1
 
 /** Align start address of draw_buf addresses to this bytes*/
+#ifndef LV_DRAW_BUF_ALIGN
 #define LV_DRAW_BUF_ALIGN                       4
+#endif
 
 /** Using matrix for transformations.
  * Requirements:
@@ -249,14 +251,20 @@
 #endif
 
 /** Use NXP's PXP on iMX RTxxx platforms. */
+#ifndef LV_USE_PXP
 #define LV_USE_PXP 0
+#endif
 
 #if LV_USE_PXP
     /** Use PXP for drawing.*/
+    #ifndef LV_USE_DRAW_PXP
     #define LV_USE_DRAW_PXP 1
+    #endif
 
     /** Use PXP to rotate display.*/
+    #ifndef LV_USE_ROTATE_PXP
     #define LV_USE_ROTATE_PXP 0
+    #endif
 
     #if LV_USE_DRAW_PXP && LV_USE_OS
         /** Use additional draw thread for PXP processing.*/
diff --git a/micropython.mk b/micropython.mk
index a884a4466..519cb5314 100644
--- a/micropython.mk
+++ b/micropython.mk
@@ -1,9 +1,13 @@
 
+################################################################################
+# LVGL port Support
+MICROPY_PORT = $(notdir $(CURDIR))
+
+ifeq ($(MICROPY_PORT),unix)
 ################################################################################
 # LVGL unix optional libraries
 # Update CFLAGS_USERMOD and LDFLAGS_USERMOD for LVGL extenral library,
 # but do that only on the unix port, for unix specific dependencies
-ifeq ($(notdir $(CURDIR)),unix)
 ifneq ($(UNAME_S),Darwin)
 CFLAGS_USERMOD += -DMICROPY_FB=1
 endif
@@ -43,7 +47,21 @@ endif
 # LDFLAGS_USERMOD += $(FFMPEG_LDFLAGS_USERMOD)
 # endif
 
-endif
+endif # unix support
+
+ifeq ($(MICROPY_PORT),mimxrt)
+CFLAGS_USERMOD += -DLV_USE_PXP=1 -DLV_USE_DRAW_PXP=1 -DLV_USE_GPU_NXP_PXP=1 -DLV_USE_GPU_NXP_PXP_AUTO_INIT=1
+
+# Depending on how the USER_C_MODULE is declared the object files inside build can be based on
+# absolute or relative paths under this directory.
+MOD_ABSPATH := $(abspath $(USERMOD_DIR))
+MOD_DIRNAME := $(notdir $(MOD_ABSPATH))
+$(BUILD)/$(MOD_ABSPATH)/lvgl/src/draw/nxp/pxp/lv_draw_pxp.o: CFLAGS_USERMOD += -Wno-error=unused-variable
+$(BUILD)/$(MOD_DIRNAME)/lvgl/src/draw/nxp/pxp/lv_draw_pxp.o: CFLAGS_USERMOD += -Wno-error=unused-variable
+$(BUILD)/$(MOD_ABSPATH)/lvgl/src/draw/nxp/pxp/lv_draw_pxp_img.o: CFLAGS_USERMOD += -Wno-error=float-conversion
+$(BUILD)/$(MOD_DIRNAME)/lvgl/src/draw/nxp/pxp/lv_draw_pxp_img.o: CFLAGS_USERMOD += -Wno-error=float-conversion
+
+endif # mimxrt support
 
 ################################################################################