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Message-ID: <cc820b4b-d3b7-9972-a07f-0c9f94f8d175@linaro.org>
Date:   Wed, 18 Jan 2023 18:07:47 +0100
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Subject: Re: [PATCH 3/3] arm64: dts: ti: iot2050: Add support for M.2 variant
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To:     Jan Kiszka <jan.kiszka@siemens.com>, Nishanth Menon <nm@ti.com>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc:     linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, Bao Cheng Su <baocheng.su@siemens.com>,
        Chao Zeng <chao.zeng@siemens.com>
References: <cover.1674059300.git.jan.kiszka@siemens.com>
 <fe57b923d3f290dceea4f54724459015a7bad899.1674059300.git.jan.kiszka@siemens.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <fe57b923d3f290dceea4f54724459015a7bad899.1674059300.git.jan.kiszka@siemens.com>
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Precedence: bulk

On 18/01/2023 17:28, Jan Kiszka wrote:
> From: chao zeng <chao.zeng@siemens.com>
> 
> The M.2 variant comes with 2 slots, one B-keyed and another one E-keyed.
> They are configured by the firmware during startup. Also the device tree
> will be adjusted according to the detect or manually configured
> interface mode by the firmware. The kernel only carries a single
> configuration as base device tree. It has to be built with a symbols
> node so that the firmware can apply overlays for the connector modes.
> 
> Signed-off-by: chao zeng <chao.zeng@siemens.com>
> [Jan: refactored to a single DT]
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> ---
>  arch/arm64/boot/dts/ti/Makefile               |   3 +
>  .../dts/ti/k3-am6548-iot2050-advanced-m2.dts  | 122 ++++++++++++++++++
>  2 files changed, 125 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2.dts
> 
> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
> index cf7c509538a4..13e79bf7e804 100644
> --- a/arch/arm64/boot/dts/ti/Makefile
> +++ b/arch/arm64/boot/dts/ti/Makefile
> @@ -11,6 +11,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am6528-iot2050-basic.dtb
>  dtb-$(CONFIG_ARCH_K3) += k3-am6528-iot2050-basic-pg2.dtb
>  dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced.dtb
>  dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced-pg2.dtb
> +dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced-m2.dtb

This does not look like proper order.

> +
> +DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@
>  

Best regards,
Krzysztof