[PATCH v2] ARM: dts: i.MX8MM: describe feature controller

Sascha Hauer sha at pengutronix.de
Tue Aug 30 23:41:26 PDT 2022


On Tue, Aug 30, 2022 at 09:50:45AM +0200, Ahmad Fatoum wrote:
> Now with i.MX8M feature controller driver support available, have the
> OCOTP provide feature control on the i.MX8MM to ensure the kernel DT
> does not cause Linux to access the VPU and its power domains,
> when barebox knows them to be unavailable.
> 
> This is needed because the upstream kernel imx8mm.dtsi only
> describes the full-featured SoC, which can lead to hangs when
> instantiating drivers for hardware that's unavailable in a
> less-featureful variant of the SoC.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
> ---
> v1 was RFC patch 10/10 of:
> https://lore.barebox.org/barebox/20220818051955.2088238-11-a.fatoum@pengutronix.de/T/#u
> 
> Patches 01-08 are still applicable, this replaces the approach in v1
> with a standalone feature controller with having the OCOTP as feature
> controller, like is done for i.MX8MN in patch 08/10 of above referenced
> series.
> ---
>  arch/arm/dts/imx8mm.dtsi | 52 ++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 52 insertions(+)

Applied, thanks

Sascha

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