[PATCH v2] arm: rockchip-rk3568-evb: add hardware id detection

[Sascha Hauer]

On Mon, Jul 05, 2021 at 06:04:57PM +0200, Michael Riesch wrote:
> The RK3568 EVB uses a voltage divider to determine the hardware ID of
> the board. At the moment, the voltage levels for seven EVB variants are
> defined. This commit adds a late_initcall to the board code that reads
> out the voltage and populates the hardware ID as environment variable.
> 
> Signed-off-by: Michael Riesch <michael.riesch at wolfvision.net>
> ---
> v2:
> - add compatible check
> - return early in case the voltage cannot be read
> - populate hardware ID as environment variable
> 
>  arch/arm/boards/rockchip-rk3568-evb/board.c | 56 +++++++++++++++++++++
>  1 file changed, 56 insertions(+)

Applied with Ahmads fixup, thanks

Sascha

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