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drm/panel: otm8009a: Add delay at the end of initialization

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[ Upstream commit 0084c3c711 ]

At the end of initialization, a delay is required by the panel. Without
this delay, the panel could received a frame early & generate a crash of
panel (black screen).

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Tested-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1553155445-13407-1-git-send-email-yannick.fertre@st.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yannick Fertré
2019-03-21 09:04:05 +01:00
committed by Greg Kroah-Hartman
parent cb5946e5c8
commit e3980dbef4
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
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@@ -248,6 +248,9 @@ static int otm8009a_init_sequence(struct otm8009a *ctx)
/* Send Command GRAM memory write (no parameters) */
dcs_write_seq(ctx, MIPI_DCS_WRITE_MEMORY_START);
/* Wait a short while to let the panel be ready before the 1st frame */
mdelay(10);
return 0;
}