linux-kernel - Re: [PATCH V7 6/6] of: unittest: Statically apply overlays using fdtoverlay

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Message-ID: <20210204074152.r7gxgippv22dufov@vireshk-i7>
Date:   Thu, 4 Feb 2021 13:11:52 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Frank Rowand <frowand.list@...il.com>,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        linux-kernel@...r.kernel.org, anmar.oueja@...aro.org,
        Bill Mills <bill.mills@...aro.org>,
        David Gibson <david@...son.dropbear.id.au>,
        devicetree@...r.kernel.org, Michal Marek <michal.lkml@...kovi.net>
Subject: Re: [PATCH V7 6/6] of: unittest: Statically apply overlays using
 fdtoverlay

On 03-02-21, 19:54, Rob Herring wrote:
> diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
> index b00855b247e0..886d2e6c58f0 100644
> --- a/scripts/Makefile.lib
> +++ b/scripts/Makefile.lib
> @@ -66,6 +66,9 @@ multi-used   := $(multi-used-y) $(multi-used-m)
>  real-obj-y := $(foreach m, $(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
>  real-obj-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m)))
>  
> +real-dtb-y := $(foreach m,$(dtb-y), $(if $(strip $($(m:.dtb=-dtbs))),$($(m:.dtb=-dtbs)),))
> +dtb-y += $(real-dtb-y)
> +
>  always-y += $(always-m)
>  
>  # hostprogs-always-y += foo
> @@ -332,6 +335,15 @@ $(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE
>  $(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE
>  	$(call if_changed_dep,dtc)
>  
> +
> +quiet_cmd_fdtoverlay = DTOVL   $@
> +      cmd_fdtoverlay = $(objtree)/scripts/dtc/fdtoverlay -o $@ -i $(real-prereqs)
> +
> +.SECONDEXPANSION:
> +
> +$(obj)/%.dtb: $$(addprefix $$(obj)/,$$(%-dtbs)) FORCE
> +	$(call if_changed,fdtoverlay)
> +
>  DT_CHECKER ?= dt-validate
>  DT_BINDING_DIR := Documentation/devicetree/bindings
>  # DT_TMP_SCHEMA may be overridden from Documentation/devicetree/bindings/Makefile

Thanks, this simplifies it greatly for platform guys.

-- 
viresh