From 38652e19aa45daa81248d99e16b5867138bdb034 Mon Sep 17 00:00:00 2001
From: wangjianyu3 <wangjianyu3@xiaomi.com>
Date: Wed, 2 Apr 2025 00:49:39 +0800
Subject: [PATCH] drivers/lcd/st7789: Support mirror V

Mirror X and V can rotate the screen 90 degrees.

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
---
 drivers/lcd/Kconfig  | 4 ++++
 drivers/lcd/st7789.c | 6 +++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/lcd/Kconfig b/drivers/lcd/Kconfig
index b4dc69b76fe..029ffb5ffbe 100644
--- a/drivers/lcd/Kconfig
+++ b/drivers/lcd/Kconfig
@@ -749,6 +749,10 @@ config LCD_ST7789_MIRRORY
 	bool "ST7789 Mirror Y"
 	default n
 
+config LCD_ST7789_MIRRORV
+	bool "ST7789 Mirror V"
+	default n
+
 config LCD_ST7789_INVCOLOR
 	bool "ST7789 Invert Color"
 	default y
diff --git a/drivers/lcd/st7789.c b/drivers/lcd/st7789.c
index 7d061d6f05d..8e4fd02d32a 100644
--- a/drivers/lcd/st7789.c
+++ b/drivers/lcd/st7789.c
@@ -477,7 +477,11 @@ static void st7789_setorientation(FAR struct st7789_dev_s *dev)
 
 #endif
 
-  /* Mirror X/Y for current setting */
+  /* Mirror X/Y/V for current setting */
+
+#ifdef CONFIG_LCD_ST7789_MIRRORV
+  madctl ^= 0x20;
+#endif
 
 #ifdef CONFIG_LCD_ST7789_MIRRORX
   madctl ^= 0x40;