[PATCH v1] staging: fbtft: fb_st7789v: enabled inversion

[Oliver Graute]

From: Oliver Graute <oliver.graute@xxxxxxxxxxxxxxxxx>

Enable inversion mode

Signed-off-by: Oliver Graute <oliver.graute@xxxxxxxxxxxxxxxxx>
---
 drivers/staging/fbtft/fb_st7789v.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c
index 3c3f387936e8..84c5af2dc9a0 100644
--- a/drivers/staging/fbtft/fb_st7789v.c
+++ b/drivers/staging/fbtft/fb_st7789v.c
@@ -120,6 +120,10 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, PWCTRL1, 0xA4, 0xA1);
 
 	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
+
+	/* enable inversion mode */
+	write_reg(par, 0x21);
+
 	return 0;
 }
 
-- 
2.17.1