2021-08-13 17:04:23

by Oliver Graute

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Subject: [PATCH v1] staging: fbtft: fb_st7789v: reset display before initialization

In rare cases the display is flipped or mirrored. This was observed more
often in a low temperature environment. A clean reset on init_display()
should help to get registers in a sane state.

Signed-off-by: Oliver Graute <[email protected]>
---
drivers/staging/fbtft/fb_st7789v.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c
index 3a280cc1892c..0a2dbed9ffc7 100644
--- a/drivers/staging/fbtft/fb_st7789v.c
+++ b/drivers/staging/fbtft/fb_st7789v.c
@@ -82,6 +82,8 @@ enum st7789v_command {
{
int rc;

+ par->fbtftops.reset(par);
+
rc = init_tearing_effect_line(par);
if (rc)
return rc;
--
2.17.1