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([2804:1b3:a801:42fc:16d8:d66b:d6c1:caeb]) by smtp.gmail.com with ESMTPSA id 71dfb90a1353d-5ea9b4f58bbsm2804299e0c.10.2026.10.16.16.28.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2026 16:28:12 -0700 (PDT) From: Fabio Estevam To: Frank.Li@nxp.com Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Fabio Estevam , stable@vger.kernel.org Subject: [PATCH 1/2] dt-bindings: nvmem: imx-iim: Allow syscon fallback on i.MX5 Date: Fri, 16 Oct 2026 20:27:59 -0300 Message-ID: <20261016232800.536654-1-festevam@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The i.MX51 and i.MX53 SoC device code reads the unique ID through syscon_regmap_lookup_by_compatible(). Their IIM nodes therefore need the syscon fallback so the syscon core can instantiate a regmap. Allow the two-item compatible sequence for these SoCs. This prepares for restoring the fallback removed while making the IIM nodes conform to the binding. Cc: stable@vger.kernel.org Fixes: d5b55c35e033 ("ARM: dts: imx: Fix the iim compatible string") Signed-off-by: Fabio Estevam --- .../devicetree/bindings/nvmem/imx-iim.yaml | 20 +++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/Documentation/devicetree/bindings/nvmem/imx-iim.yaml b/Documentation/devicetree/bindings/nvmem/imx-iim.yaml index bb37d72c9eaa..ebfd947e6800 100644 --- a/Documentation/devicetree/bindings/nvmem/imx-iim.yaml +++ b/Documentation/devicetree/bindings/nvmem/imx-iim.yaml @@ -20,13 +20,17 @@ allOf: properties: compatible: - enum: - - fsl,imx25-iim - - fsl,imx27-iim - - fsl,imx31-iim - - fsl,imx35-iim - - fsl,imx51-iim - - fsl,imx53-iim + oneOf: + - enum: + - fsl,imx25-iim + - fsl,imx27-iim + - fsl,imx31-iim + - fsl,imx35-iim + - items: + - enum: + - fsl,imx51-iim + - fsl,imx53-iim + - const: syscon reg: maxItems: 1 @@ -50,7 +54,7 @@ examples: #include iim: efuse@63f98000 { - compatible = "fsl,imx53-iim"; + compatible = "fsl,imx53-iim", "syscon"; reg = <0x63f98000 0x4000>; interrupts = <69>; clocks = <&clks IMX5_CLK_IIM_GATE>; -- 2.43.0