From: Fabio Estevam <festevam@gmail.com>
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 <festevam@gmail.com>,
stable@vger.kernel.org
Subject: [PATCH 2/2] ARM: dts: imx5: Restore IIM syscon fallback
Date: Fri, 16 Oct 2026 20:28:00 -0300 [thread overview]
Message-ID: <20261016232800.536654-2-festevam@gmail.com> (raw)
In-Reply-To: <20261016232800.536654-1-festevam@gmail.com>
Commit d5b55c35e033 ("ARM: dts: imx: Fix the iim compatible string")
removed all IIM fallback compatibles because the binding only accepted one
compatible. The i.MX51 and i.MX53 SoC device code still looks up the IIM
with syscon_regmap_lookup_by_compatible(), though. Without the syscon
fallback, syscon_node_to_regmap() cannot instantiate the regmap and boot
reports:
imx_soc_device_init: failed to find fsl,imx53-iim regmap!
Restore the syscon fallback on i.MX51 and i.MX53.
Fixes: d5b55c35e033 ("ARM: dts: imx: Fix the iim compatible string")
Cc: stable@vger.kernel.org
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
arch/arm/boot/dts/nxp/imx/imx51.dtsi | 2 +-
arch/arm/boot/dts/nxp/imx/imx53.dtsi | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/nxp/imx/imx51.dtsi b/arch/arm/boot/dts/nxp/imx/imx51.dtsi
index c8698a9af1a7..e0494aa30a6b 100644
--- a/arch/arm/boot/dts/nxp/imx/imx51.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx51.dtsi
@@ -476,7 +476,7 @@ aipstz2: bridge@83f00000 {
};
iim: efuse@83f98000 {
- compatible = "fsl,imx51-iim";
+ compatible = "fsl,imx51-iim", "syscon";
reg = <0x83f98000 0x4000>;
interrupts = <69>;
clocks = <&clks IMX5_CLK_IIM_GATE>;
diff --git a/arch/arm/boot/dts/nxp/imx/imx53.dtsi b/arch/arm/boot/dts/nxp/imx/imx53.dtsi
index 93225a56896f..13550d12f694 100644
--- a/arch/arm/boot/dts/nxp/imx/imx53.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx53.dtsi
@@ -668,7 +668,7 @@ aipstz2: bridge@63f00000 {
};
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
prev parent reply other threads:[~2026-10-16 23:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-16 23:27 [PATCH 1/2] dt-bindings: nvmem: imx-iim: Allow syscon fallback on i.MX5 Fabio Estevam
2026-10-16 23:28 ` Fabio Estevam [this message]
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