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| author | Paul Cercueil <paul@crapouillou.net> | 2020-07-16 15:56:46 +0300 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2020-07-16 20:06:39 +0300 |
| commit | bad20a2dbfdfaf01560026909506b6ed69d65ba2 (patch) | |
| tree | db147d68377ce177fa09f5a8a2a693c98678a672 /drivers/gpu/drm/panel | |
| parent | 947fcfeac3295ff0961bb50803e0c4ae63cff65b (diff) | |
| download | linux-bad20a2dbfdfaf01560026909506b6ed69d65ba2.tar.xz | |
drm/panel-simple: Fix inverted V/H SYNC for Frida FRD350H54004 panel
The FRD350H54004 panel was marked as having active-high VSYNC and HSYNC
signals, which sorts-of worked, but resulted in the picture fading out
under certain circumstances.
Fix this issue by marking VSYNC and HSYNC signals active-low.
v2: Rebase on drm-misc-next
Fixes: 7b6bd8433609 ("drm/panel: simple: Add support for the Frida FRD350H54004 panel")
Cc: stable@vger.kernel.org # v5.5
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125647.10964-1-paul@crapouillou.net
Diffstat (limited to 'drivers/gpu/drm/panel')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-simple.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index f42249b72548..8b0bab9dd075 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -1763,7 +1763,7 @@ static const struct drm_display_mode frida_frd350h54004_mode = { .vsync_start = 240 + 2, .vsync_end = 240 + 2 + 6, .vtotal = 240 + 2 + 6 + 2, - .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, + .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, }; static const struct panel_desc frida_frd350h54004 = { |