drm/panel: st7701: Add Winstar wf40eswaa6mnn0 panel support
The Winstar wf40eswaa6mnn0 panel is a square 4.0" TFT LCD with a
resolution of 480x480 pixels.
This panel is driven by the Sitronix ST7701 controller and uses a MIPI
DSI interface. The settings are based on the panel's datasheet and the
init sequence provided by Winstar.
It was tested on a Verdin iMX8MP from Toradex with a Carrier Board
providing a MIPI DSI interface.
Signed-off-by: Stefan Eichenberger <eichest@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250606114644.105371-2-eichest@gmail.com
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