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Subject[PATCH] drm/panel: otm8009a: add delay at the end of initialization
Date
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>
---
drivers/gpu/drm/panel/panel-orisetech-otm8009a.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
index 87fa316..58ccf64 100644
--- a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
+++ b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
@@ -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;
}

--
2.7.4
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