From: Oliver Graute <oliver.graute@kococonnector.com>
To: gregkh@linuxfoundation.org
Cc: oliver.graute@gmail.com,
Oliver Graute <oliver.graute@kococonnector.com>,
Carlis <zhangxuezhi1@yulong.com>,
dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH v1] fbtft: fb_st7789v: added reset on init_display()
Date: Fri, 13 Aug 2021 08:25:10 +0200 [thread overview]
Message-ID: <20210813062511.14537-1-oliver.graute@kococonnector.com> (raw)
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 <oliver.graute@kococonnector.com>
---
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
next reply other threads:[~2021-08-13 6:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-13 6:25 Oliver Graute [this message]
2021-08-13 8:20 ` [PATCH v1] fbtft: fb_st7789v: added reset on init_display() Greg KH
2021-08-13 12:54 ` Oliver Graute
2021-08-13 15:00 ` Greg KH
2022-02-10 8:49 ` Oliver Graute
2022-02-10 8:49 ` Oliver Graute
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