linux-kernel - [PATCH] arm64: dts: mediatek: Add fallback compatible for mt8192's flash

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Message-Id: <20220429195745.2203461-1-nfraprado@collabora.com>
Date:   Fri, 29 Apr 2022 15:57:45 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Matthias Brugger <matthias.bgg@...il.com>
Cc:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, kernel@...labora.com,
        Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH] arm64: dts: mediatek: Add fallback compatible for mt8192's flash

The dt-binding for Mediatek's SPI NOR flash controller expects a mt8173
fallback compatible for mt8192, so add it in mt8192.dtsi.

The driver already sets custom data based on the mt8192 compatible, so
this fallback compatible won't be used and is added purely to suppress
the dt-binding warning.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

---

 arch/arm64/boot/dts/mediatek/mt8192.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
index 26dbe9ecc528..32a836105ea7 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
@@ -896,7 +896,7 @@ pcie_intc0: interrupt-controller {
 		};
 
 		nor_flash: spi@...34000 {
-			compatible = "mediatek,mt8192-nor";
+			compatible = "mediatek,mt8192-nor", "mediatek,mt8173-nor";
 			reg = <0 0x11234000 0 0xe0>;
 			interrupts = <GIC_SPI 431 IRQ_TYPE_LEVEL_HIGH 0>;
 			clocks = <&topckgen CLK_TOP_SFLASH_SEL>,
-- 
2.36.0