[U-Boot] [PATCH 5/7] board: ti: am57xx-idk: Auto detect LCD Panel

Tom Rini trini at konsulko.com
Thu Jan 26 18:41:37 CET 2017


On Thu, Jan 26, 2017 at 03:07:27PM +0200, Roger Quadros wrote:

> From: Nishanth Menon <nm at ti.com>
> 
> AM571x IDK and AM572x IDK have optional LCD Kits that can be purchased.
> These can be one of OSD101T2045 or the newer OSD101T2587. The LCD panel
> itself has no registers that can be used to identify the panel, however,
> the touchscreen controllers on the panels are different.
> 
> Hence to ease user experience, we can use the touch screen controller's
> ID information to detect what kind of panel we use and select the
> appropriate kernel dtb for the platform configuration.
> 
> NOTE: AM572x IDK default configuration is for LCD Connectivity, however
> the AM571x IDK has a jumper (J51) that needs to be mounted for the IDK
> to operate with LCD (Vs two PRUSS ethernet port option).
> 
> Touchscreen ID information is documented in:
> http://www.osddisplays.com/TI/OSD101T2587-53TS_A.1.pdf
> 
> Acked-by: Lokesh Vutla <lokeshvutla at ti.com>
> Signed-off-by: Nishanth Menon <nm at ti.com>
> Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
> Signed-off-by: Roger Quadros <rogerq at ti.com>

Reviewed-by: Tom Rini <trini at konsulko.com>

-- 
Tom
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