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inside the .dtsi Thank you, Stefan On 26/09/2025 11.31, Stefan Prisacariu wrote: > > On 26/09/2025 00.21, Frank Li wrote: >> On Thu, Sep 25, 2025 at 12:49:40PM +0200, stefan.prisacariu@prevas.dk >> wrote: >>> From: Stefan Prisacariu >>> >>> Make SoM .dtsi SoC-agnostic by moving SoC include to board level >>> >>> imx6qdl-var-som.dtsi currently includes imx6q.dtsi, which makes this >>> SoM >>> description Quad/Dual specific and prevents reuse from i.MX6DL boards. >>> >>> Move the SoC selection to the board level: >>>   - Drop the imx6q.dtsi include from the SoM .dtsi. >>>   - Add imx6q.dtsi include to imx6q-var-mx6customboard.dts. >> move imx6q.dtsi from imx6qdl-var-som.dtsi to >> imx6q-var-mx6customboard.dts. >> >>> This keeps the SoM .dtsi SoC-agnostic (it already relies on >>> imx6qdl.dtsi >>> for family-common parts) and allows boards using the DualLite or >>> Solo to >>> include imx6dl.dtsi instead. >>> >>> Why this is needed: >>> I need to reuse imx6qdl-var-som.dtsi for a board based on i.MX6DL >>> (VAR-SOM SoM + custom carrier). Without this change, the SoM .dtsi >>> forces imx6q.dtsi, which is incorrect for DL and breaks the layering >>> model used upstream. >> Can use simple words >> >> To reuse imx6qdl-var-som.dtsi on i.MX6DL board. >> >>> Verification: >>> The DTB for imx6q-var-mx6customboard was rebuilt before and after this >>> change. Both the binary DTB and the decompiled DTS >>> (via dtc -I dtb -O dts -s) are identical, confirming no functional >>> change >>> for the existing board. >> Needn't this section (good place for these informaiton is cover letter). >> >>> Alignment: >>> This also aligns the layering with how it is already done for >>> imx6q-var-dt6customboard.dts, where the SoC include is handled at the >>> board level. >> Needn't this section >> >>> No functional changes for imx6q-var-mx6customboard are intended. >> good >> >>> Files were introduced in: >>> commit e5c810848d2a ("ARM: dts: imx6qdl: Add Variscite VAR-SOM-MX6 >>> SoM support") >>> commit a5b59a3f41bd ("ARM: dts: imx6q: Add Variscite MX6 Custom board >>> support") >> Needn't this section. >> >>> Signed-off-by: Stefan Prisacariu >>> --- >>>   arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts | 1 + >>>   arch/arm/boot/dts/nxp/imx/imx6qdl-var-som.dtsi         | 3 --- >>>   2 files changed, 1 insertion(+), 3 deletions(-) >>> >>> diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts >>> b/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts >>> index 18a620832a2a..a55644529c67 100644 >>> --- a/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts >>> +++ b/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts >>> @@ -8,6 +8,7 @@ >>> >>>   /dts-v1/; >>> >>> +#include "imx6q.dtsi" >>>   #include "imx6qdl-var-som.dtsi" >>>   #include >>> >>> diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-var-som.dtsi >>> b/arch/arm/boot/dts/nxp/imx/imx6qdl-var-som.dtsi >>> index 59833e8d11d8..51bcaf04546b 100644 >>> --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-var-som.dtsi >>> +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-var-som.dtsi >>> @@ -9,9 +9,6 @@ >>>    * Copyright 2022 Bootlin >>>    */ >>> >>> -/dts-v1/; >> why drop this line. > > As far as I know this line should be present in the dts not dtsi files, > also this will remove the requirement to have this dtsi file first > included in > the dts files > > Stefan > >> >> Frank >>> - >>> -#include "imx6q.dtsi" >>>   #include >>>   #include >>>   #include >>> >>> base-commit: 8f5ff9784f3262e6e85c68d86f8b7931827f2983 >>> -- >>> 2.49.1 >>>