meta-openembedded/meta-oe/recipes-graphics/lvgl/files/0004-Factor-out-fbdev-initialization-code.patch

From 593da8e11cc5029773ad330b5d7633ee9f2fba95 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Tue, 12 Mar 2024 18:09:42 +0100
Subject: [PATCH 4/6] Factor out fbdev initialization code

Pull fbdev initialization code into separate function and add ifdef
around it, so it can be conditionally compiled in. This is done in
preparation for addition of other backend initialization example
code.

Upstream-Status: Submitted [https://github.com/lvgl/lv_port_linux_frame_buffer/pull/47]
Signed-off-by: Marek Vasut <marex@denx.de>
---
 main.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/main.c b/main.c
index b64a098..288519c 100644
--- a/main.c
+++ b/main.c
@@ -9,14 +9,24 @@ static const char *lv_linux_get_video_card_node(const char *videocard_default)
     return getenv("LV_VIDEO_CARD") ? : videocard_default;
 }
 
-int main(void)
+#if LV_USE_LINUX_FBDEV
+static void lv_linux_disp_init(void)
 {
     const char *videocard = lv_linux_get_video_card_node("/dev/fb0");
-    lv_init();
-
-    /*Linux frame buffer device init*/
     lv_display_t * disp = lv_linux_fbdev_create();
+
     lv_linux_fbdev_set_file(disp, videocard);
+}
+#else
+#error Unsupported configuration
+#endif
+
+int main(void)
+{
+    lv_init();
+
+    /*Linux display device init*/
+    lv_linux_disp_init();
 
     /*Create a Demo*/
     lv_demo_widgets();
-- 
2.43.0