[RESEND PATCH v7 15/16] arm64: dts: st: support Engicam MicroGEA-STM32MP257-RMM board

Dario Binacchi dario.binacchi at amarulasolutions.com
Thu Aug 20 02:05:15 PDT 2026


Hi Alexandre,

On Mon, Aug 10, 2026 at 10:15 AM Alexandre TORGUE
<alexandre.torgue at foss.st.com> wrote:
>
> Hi Dario
>
> On 7/15/26 08:20, Dario Binacchi wrote:
> > Support for Engicam MicroGEA-STM32MP257-RMM board with:
> >
> >   - 8 GB eMMC Flash
> >   - 2 GB LPDDR4 DRAM
> >   - CAN
> >   - LEDs
> >   - LCD panel with touchscreen
> >   - Micro SD card connector
> >   - Audio codec
> >   - Buzzer
> >
> > Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
> >
> > ---
> >
> > (no changes since v5)
> >
> > Changes in v5:
> > - Fix touchscreen resolution to 480x854
> > - Fix SPI1 CS0 polarity to GPIO_ACTIVE_LOW
> >
> > Changes in v2:
> > - Drop the clocks property from the sai1 node in stm32mp257-engicam-microgea-rmm.dts
> >    to avoid overriding the peripheral bus clock reference defined in the base
> >    SoC device tree. Suggested by Sashiko.
> > - Reference the existing labeled nodes directly at the root level using
> >    &sai1a and &sai1b in stm32mp257-engicam-microgea-rmm.dts instead of
> >    redefining the entire node structure and redeclaring the labels. Suggested by Sashiko.
> > - Drop the #clock-cells property from sai1a and remove the reference to sai1a from
> >    the clocks array in sai1b, relying strictly on the st,sync property to handle
> >    internal synchronization.
> >
> >   arch/arm64/boot/dts/st/Makefile               |   1 +
> >   .../st/stm32mp257-engicam-microgea-rmm.dts    | 319 ++++++++++++++++++
>
> Series is ok, I just have a question regarding board name. Why you don't add the "d" soc information inside the board name as it is done for others STM32 boards ?

You are right. I'll send v8 shortly with the "d" in the board name.

Thanks and regards,
Dario



-- 
Dario Binacchi
Senior Embedded Software Engineer
M. +39 328 0625246
dario.binacchi at amarulasolutions.com
―――――――――――――――
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www.amarulasolutions.com



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