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| author | Oliver Graute <oliver.graute@kococonnector.com> | 2022-02-10 11:53:22 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-02 13:48:07 +0300 |
| commit | bde6a6b111b9e05cfee9d716b48b125858e8de9c (patch) | |
| tree | 4865f6d30386adfa8a99e12386fe6bb608046b26 /drivers/staging | |
| parent | ba9efbbf6745750d34c1e87c9539ce9db645ca0a (diff) | |
| download | linux-bde6a6b111b9e05cfee9d716b48b125858e8de9c.tar.xz | |
staging: fbtft: fb_st7789v: reset display before initialization
commit b6821b0d9b56386d2bf14806f90ec401468c799f upstream.
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.
Fixes: ef8f317795da (staging: fbtft: use init function instead of init sequence)
Cc: stable@vger.kernel.org
Signed-off-by: Oliver Graute <oliver.graute@kococonnector.com>
Link: https://lore.kernel.org/r/20220210085322.15676-1-oliver.graute@kococonnector.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/fbtft/fb_st7789v.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c index abe9395a0aef..861a154144e6 100644 --- a/drivers/staging/fbtft/fb_st7789v.c +++ b/drivers/staging/fbtft/fb_st7789v.c @@ -144,6 +144,8 @@ static int init_display(struct fbtft_par *par) { int rc; + par->fbtftops.reset(par); + rc = init_tearing_effect_line(par); if (rc) return rc; |