On Thu, Jul 16, 2020 at 02:56:46PM +0200, Paul Cercueil wrote:

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

Thanks for the re-submit. Applied both patches to drm-misc-next.

Sam

---

drivers/gpu/drm/panel/panel-simple.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

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 = { -- 2.27.0