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drivers/lcd/st7789: Send RAMCTRL if little endian

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Send RAMCTRL command only when RGB data in little endian.

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
This commit is contained in:
wangjianyu3 2025-04-01 18:19:23 +08:00 • committed by archer
parent 04df2ccead
commit c5afcd78f1
1 changed files with 4 additions and 2 deletions
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6
drivers/lcd/st7789.c
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@ -497,6 +497,7 @@ static void st7789_setorientation(FAR struct st7789_dev_s *dev)
}
#endif
#ifdef CONFIG_LCD_ST7789_DATA_ENDIAN_LITTLE
static void st7789_ramctl(FAR struct st7789_dev_s *dev)
{
/* ============ ==== ==== ====== ====== ======== ===== ====== ======
@ -522,13 +523,12 @@ static void st7789_ramctl(FAR struct st7789_dev_s *dev)
/* Set RGB data endian */
#ifdef CONFIG_LCD_ST7789_DATA_ENDIAN_LITTLE
ramctl |= 0x800;
#endif
SPI_SEND(dev->spi, LCD_ST7789_DATA_PREFIX | ramctl);
st7789_deselect(dev->spi);
}
#endif
/****************************************************************************
* Name: st7789_setarea
@ -1032,7 +1032,9 @@ FAR struct lcd_dev_s *st7789_lcdinitialize(FAR struct spi_dev_s *spi)
#else
st7789_setorientation(priv);
#endif
#ifdef CONFIG_LCD_ST7789_DATA_ENDIAN_LITTLE
st7789_ramctl(priv);
#endif
st7789_display(priv, true);
st7789_fill(priv, CONFIG_LCD_ST7789_DEFAULT_COLOR);